US3623134A - Arc tube centering device - Google Patents
Arc tube centering device Download PDFInfo
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- US3623134A US3623134A US889597A US3623134DA US3623134A US 3623134 A US3623134 A US 3623134A US 889597 A US889597 A US 889597A US 3623134D A US3623134D A US 3623134DA US 3623134 A US3623134 A US 3623134A
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- Prior art keywords
- arc tube
- frame
- pin
- lamp
- bulb
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/34—Double-wall vessels or containers
Definitions
- ARC TUBE CENTERING DEVICE 8 Claims, 4 Drawing Figs. is connected to the supporting frame in a manner which substantially restricts all lateral movement of the arc tube with respect to the support frame while permitting free axial movement of one end of the arc tube with respect to the support e m a c 44 0 u ou u ,2, 4 MU m 0U "3N L T C G o s Pm U he. 1 ll 2 0 5 55 l [l ARC TUBE CENTERING DEVICE BACKGROUND OF THE INVENTION
- This invention relates to high pressure gas discharge lamps and more particularly to an improved mounting structure for a ceramic discharge lamp.
- FIG. I is a side elevation view partly in section of an arc discharge lamp constructed in accordance with the present invention.
- FIG. 2 is a fragmentary sectional view taken along the line Il-II ofFIG. 1;
- FIG. 3 is a view similar to FIG. I of the upper portion of the arc tube mount illustrating an alternative embodiment of the present invention.
- FIG. 4 is a view similar to FIG. 3 illustrating yet another embodiment of the arc tube support ofthe present invention.
- the ceramic discharge lamp generally designated includes an outer envelope of glass 12 attached to a standard mogul base 14.
- a pair of lead in conductors 16 and 18 are conventionally connected to the mogul base 14 and extend through a reentrant stem press 20 at the base of the envelope 12in a conventional manner.
- the arc tube support frame 22 which serves both to retain and mount the arc tube within the outer envelope as well as to conduct electricity to the upper electrode of the arc tube.
- the frame 22 is supported at its upper end within the envelope 12 by a pair of resilient spring members 24 which serve to retain the frame 22 in a central location within the outer envelope 12 through resilient contact with the inner surface of the outer envelope.
- a conventional ceramic arc tube 26 is mounted at its lower end to lead in conductor 16 by means of a strap 28 which is welded at one end to the lead in conductor 16 and at its other end to the pinched off end of the exhaust and fill tabulation 30 of the arc tube which, in its pinched off form. serves as a lead in conductor to its associated electrode.
- the upper end of the arc tube 26 is secured to the cross member 32 of the support frame 22 by means of a double leaf, spring clip 34.
- the resilient double leaf spring clip has a top portion 36 that surrounds and is welded to the top member 32 of the support frame 22 and extends downwardly in a pair of legs which are secured together as by welding at 37.
- Each leg then extends outwardly in a U-shaped configuration 38 and then back to a parallel leg configuration at 39 where both legs are again welded together and to an upper lead in conductor 40 connected to the upper electrode of the ceramic arc tube.
- the bottom leg portions 39 terminate in feet portions 39a which serve to aid in retaining the arc tube in its central location.
- the flexible U-shaped portions 38 of the legs permit'axial expansion of the arc tube 26 but retain the arc tube'in a rigid position along the center line of the outer envelope 12.
- the flexible spring clip 34 also serves to conduct electricity from the upper cross member 32 of the support member 22 to the lead in conductor 40 at the upper end of the ceramic are tube.
- an elongated eyelet 42 with a central bore 44 is welded to the upper end of the arc tube 26.
- a current conducting strap 46 electrically connects the eyelet 42 to the support frame 22 through which electricity is carried to the upper electrode of the arc tube.
- a pin or rod 48 is welded to the upper cross bar member 32 of support frame 22 in a position which permits it to extend downwardly from the cross bar member 32 substantially axially of the outer envelope l2 and is slidably received by the central bore 44 in the eyelet 42.
- FIG. 4 The embodiment of FIG. 4 is quite similar to the FIG. 3 embodiment with the exception that the pin and aperture relationships are reversed.
- an elongated pin or rod 50 extends from the upper end enclosure member of the arc tube 26 in electrical contact therewith.
- a flexible electrically conductive strap 46 is welded to the pin 50 and to the support frame 22 to provide for the conduction of electricity to the upper electrode of the arc tube.
- a rigid bar 52 is welded to the upstanding current carrying legs of the frame 22 parallel with the upper cross bar member 32 but spaced a slight distance therefrom.
- the rigid cross piece 52 has an aperture 54 therein through which the pin 50 extends. The coaction between the aperture 54 and the pin 50 retains the arc tube in a preselected position axially of the lamp envelope 12 but places no restraint on the axial expansion of the arc tube during operation of the lamp.
- each of the above described embodiments of this invention serve to mount the ceramic arc tube within an outer envelope in a manner which substantially restrains all lateral movement of the arc tube with respect to the support frame and the outer envelope of the lamp and which will retain the arc tube in an axial position unaffected by any impact during shipment or handling but will permit substantially free axial movement of the arc tube with respect to the frame to thereby accommodate expansion of the arc tube during operation of the lamp.
- a gas discharge lamp having a base portion, a sealed bulb portion connected thereto and a pair of lamp lead in conductors extending from said base portion into said bulb portion onto which are mounted an arc tube mounting frame and are tube, the improvement comprising:
- mounting means connecting said arc tube to said frame, said mounting means including a resilient spring clip welded at one end to said frame and at the other end to said are tube, said resilient spring clip including a bowed horizontally disposed section adapted to substantially restrict all lateral movement of said are tube with respect to said frame but permitting substantially free axial movement of said are tube with respect to one end of said frame to thereby accommodate expansion of said are tube during operation of said lamp.
- a gas discharge lamp having a base portion, a sealed bulb portion connected thereto and a pair of lamp lead in conductors extending from said base portion into said bulb portion onto which are mounted an arc tube mounting frame and are tube, the improvement comprising:
- said mounting means connecting one end of said are tube to said frame, said mounting means including an elongated axially disposed pin and a member having an aperture therein; one of said pin and said member being fixed to said arc tube mounting frame and the other of said pin and said member being fixed to said one end of said are tube, said pin and said member providing the sole support for said one end of said are tube when said pin is received in said aperture in said member to thereby substantially restrict all lateral movement of said are tube with respect to said frame but permit substantially free axial movement of said are tube with respect to one end of said frame to thereby accommodate expansion of said are tube during operation of said lamp.
- a gas discharge lamp having a base portion, a sealed bulb portion connected thereto and a pair of lamp lead in conductors extending from said base portion into said bulb portion onto which are mounted an arc tube mounting frame and are tube, the improvement comprising:
- mounting means connecting one end of said are tube to said frame, said mounting means including an elongated axially disposed pin welded to said frame and an eyelet attached to the end of said are tube having an aperture therein, said pin being received in said aperture in said eyelet to thereby substantially restrict all lateral movement of said arc tube with respect to said frame but permit substantially free axially movement of said are tube with respect to one end of said frame to thereby accommodate expansion of said are tube during operation of said lamp.
- a gas discharge lamp according to claim 2 wherein said pin is axially connected to said are tube and said aperture is located in a transverse member secured to said frame.
- a gas discharge lamp comprising in combination a base, an outer bulb sealed to said base and a reentrant stem press extending into said bulb from said base and having a pair of lamp lead in conductors extending therethrough;
- said means including a resilient spring clip connected at one end to said supporting frame and at the other end to said are tube, said resilient spring clip having a pair of bowed leg portions adapted to accommodate without significant restraint axial expansion of said are tube whereby said are tube will be free to expand axially while being retained in a position substantially centrally located with respect to said outer bulb.
- a gas discharge lamp comprising in combination, a base, an outer bulb sealed to said base and a reentrant stem press extending into said bulb from said base and having a pair of lamp lead in conductors extending therethrough;
- mounting means connecting the other end of said are tube to said frame, said mounting means including a centrally disposed axially positioned pin member and a member having an axially disposed aperture, one of said pin member and said member connected to said are tube and the other of said pin member and said member connected to said frame whereby said pin member extends through said aperture and is free to move therein and thereby provide the sole support for said other end of said are tube and permit said are tube to be free to expand axially while being retained in a position substantially centrally located with respect to said outer bulb.
- a gas discharge lamp comprising in combination, a base, an outer bulb sealed to said base and a reentrant stem press extending into said bulb from said base and having a pair of lamp lead in conductors extending therethrough;
- mounting means connecting the other end of said arc tube to said frame, said mounting means including a centrally disposed axially positioned pin member welded to said frame and an eyelet having an axially disposed aperture therein attached to the end of said are tube, said pin member extending through said aperture and free to move therein to thereby permit said are tube to be free to expand axially while being retained in position substantially centrally located with respect to said outer bulb.
- a gas discharge lamp according to claim 6 wherein said pin member is axially connected to said are tube and said aperture is located in a transverse member secured to said frame.
Abstract
An improved mounting structure for a gas discharge lamp employing a ceramic arc tube mounted on a support frame within an outer glass envelope. The arc tube is secured at one end to a lead in conductor and at its other end is connected to the supporting frame in a manner which substantially restricts all lateral movement of the arc tube with respect to the support frame while permitting free axial movement of one end of the arc tube with respect to the support frame.
Description
United States Patent [72] lnventors Leo C. Werner Cedar Grove;
Raymond M. Kane, Florham Park, both of 2,1 73 26] ArtorneysA. T. Stratton, W. D. Palmer and B. R. Studebaker ABSTRACT: An improved mounting structure for a gas Pittsburgh, Pa.
discharge lamp employing a ceramic arc tube mounted on a support frame within an outer glass envelope. The are tube is secured at one end to a lead in conductor and at its other end [54] ARC TUBE CENTERING DEVICE 8 Claims, 4 Drawing Figs. is connected to the supporting frame in a manner which substantially restricts all lateral movement of the arc tube with respect to the support frame while permitting free axial movement of one end of the arc tube with respect to the support e m a c 44 0 u ou u ,2, 4 MU m 0U "3N L T C G o s Pm U he. 1 ll 2 0 5 55 l [l ARC TUBE CENTERING DEVICE BACKGROUND OF THE INVENTION This invention relates to high pressure gas discharge lamps and more particularly to an improved mounting structure for a ceramic discharge lamp.
In the past, ceramic discharge lamps have been mounted in a comparatively rigid relationship with respect to the support frame. An example of such a mounting may be found in US. Pat. No. 3,384,798 issued May 21, I968 to K. Schmidt. Such rigid mounting generally accomplished by welding the arc tube to a strap which served both as a support and a lead in conductor provided for good lateral support and desirably maintained the arc tube in a central position within the outer envelope. This type structure, however, also provided for rigid axial support of the arc tube and does not accommodate vertical expansion of the arc tube during operation of the lamp.
It has been found that it is highly desirable when mounting a ceramic arc tube within an outer envelope in a ceramic discharge lamp that the arc tube be maintained in a central location with respect to the outer envelope by means of a comparatively rigid mounting structure in order that the arc tube is not jarred, during shipment or upon other impact, to an extent that the arc tube will shift to a position other than its original central location within the outer envelope. It has, however, also been found that it is equally desirable to provide axial flexibility in the arc tube mount in order to allow for vertical expansion of the arc tube during operation of the lamp.
SUMMARY OF THE INVENTION The above-described deficiencies in the prior art structures are obviated and the improvements are accomplished in accordance with the present invention by providing, in a gas discharge lamp having a base portion, an envelope portion sealed thereto and enclosing a reentrant stem press having a pair of lead in conductors extending therethrough onto which is mounted an arc tube mounting and support frame and an arc tube; the improvement which comprises means for connecting the arc tube to the frame, which connecting means, substantially restricts all lateral movement of the arc tube with respect to the support frame but permits substantially free axial movement of one end of the arc tube with respect to the support frame.
BRIEF DESCRIPTION OF THE DRAWING Many of the attendant advantages of the present invention will become more readily apparent and better understood as the following detailed description of exemplary embodiments is considered in connection with the accompanying drawings in which: 7
FIG. I is a side elevation view partly in section of an arc discharge lamp constructed in accordance with the present invention;
FIG. 2 is a fragmentary sectional view taken along the line Il-II ofFIG. 1;
FIG. 3 is a view similar to FIG. I of the upper portion of the arc tube mount illustrating an alternative embodiment of the present invention; and
FIG. 4 is a view similar to FIG. 3 illustrating yet another embodiment of the arc tube support ofthe present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now in detail to the drawings wherein like reference characters represent like parts throughout the several views there is illustrated in FIG. 1 one embodiment of the arc tube mounting structure of this invention. The ceramic discharge lamp generally designated includes an outer envelope of glass 12 attached to a standard mogul base 14. A pair of lead in conductors 16 and 18 are conventionally connected to the mogul base 14 and extend through a reentrant stem press 20 at the base of the envelope 12in a conventional manner. Mounted on the upper end of lead in conductor 18 is the arc tube support frame 22 which serves both to retain and mount the arc tube within the outer envelope as well as to conduct electricity to the upper electrode of the arc tube. The frame 22 is supported at its upper end within the envelope 12 by a pair of resilient spring members 24 which serve to retain the frame 22 in a central location within the outer envelope 12 through resilient contact with the inner surface of the outer envelope.
A conventional ceramic arc tube 26 is mounted at its lower end to lead in conductor 16 by means of a strap 28 which is welded at one end to the lead in conductor 16 and at its other end to the pinched off end of the exhaust and fill tabulation 30 of the arc tube which, in its pinched off form. serves as a lead in conductor to its associated electrode.
In the embodiment of FIGS. 1 and 2 the upper end of the arc tube 26 is secured to the cross member 32 of the support frame 22 by means of a double leaf, spring clip 34. As best seen in FIG. 2 the resilient double leaf spring clip has a top portion 36 that surrounds and is welded to the top member 32 of the support frame 22 and extends downwardly in a pair of legs which are secured together as by welding at 37. Each leg then extends outwardly in a U-shaped configuration 38 and then back to a parallel leg configuration at 39 where both legs are again welded together and to an upper lead in conductor 40 connected to the upper electrode of the ceramic arc tube. The bottom leg portions 39 terminate in feet portions 39a which serve to aid in retaining the arc tube in its central location. In the embodiment of FIG. I the flexible U-shaped portions 38 of the legs permit'axial expansion of the arc tube 26 but retain the arc tube'in a rigid position along the center line of the outer envelope 12. The flexible spring clip 34 also serves to conduct electricity from the upper cross member 32 of the support member 22 to the lead in conductor 40 at the upper end of the ceramic are tube.
In the'embodiment of FIG. 3 an elongated eyelet 42 with a central bore 44 is welded to the upper end of the arc tube 26. A current conducting strap 46 electrically connects the eyelet 42 to the support frame 22 through which electricity is carried to the upper electrode of the arc tube. A pin or rod 48 is welded to the upper cross bar member 32 of support frame 22 in a position which permits it to extend downwardly from the cross bar member 32 substantially axially of the outer envelope l2 and is slidably received by the central bore 44 in the eyelet 42. As will be apparent this construction while maintaining the 'arc tube rigidly in a central position with respect to the outer envelope and the support frame 22 will permit axial expansion of the arc tube without restraint during operation of the lamp.
The embodiment of FIG. 4 is quite similar to the FIG. 3 embodiment with the exception that the pin and aperture relationships are reversed. In the FIG. 4 embodiment an elongated pin or rod 50 extends from the upper end enclosure member of the arc tube 26 in electrical contact therewith. A flexible electrically conductive strap 46 is welded to the pin 50 and to the support frame 22 to provide for the conduction of electricity to the upper electrode of the arc tube. A rigid bar 52 is welded to the upstanding current carrying legs of the frame 22 parallel with the upper cross bar member 32 but spaced a slight distance therefrom. The rigid cross piece 52 has an aperture 54 therein through which the pin 50 extends. The coaction between the aperture 54 and the pin 50 retains the arc tube in a preselected position axially of the lamp envelope 12 but places no restraint on the axial expansion of the arc tube during operation of the lamp.
As will be apparent from the foregoing, each of the above described embodiments of this invention serve to mount the ceramic arc tube within an outer envelope in a manner which substantially restrains all lateral movement of the arc tube with respect to the support frame and the outer envelope of the lamp and which will retain the arc tube in an axial position unaffected by any impact during shipment or handling but will permit substantially free axial movement of the arc tube with respect to the frame to thereby accommodate expansion of the arc tube during operation of the lamp.
What is claimed is:
1. In a gas discharge lamp having a base portion, a sealed bulb portion connected thereto and a pair of lamp lead in conductors extending from said base portion into said bulb portion onto which are mounted an arc tube mounting frame and are tube, the improvement comprising:
mounting means connecting said arc tube to said frame, said mounting means including a resilient spring clip welded at one end to said frame and at the other end to said are tube, said resilient spring clip including a bowed horizontally disposed section adapted to substantially restrict all lateral movement of said are tube with respect to said frame but permitting substantially free axial movement of said are tube with respect to one end of said frame to thereby accommodate expansion of said are tube during operation of said lamp.
2. In a gas discharge lamp having a base portion, a sealed bulb portion connected thereto and a pair of lamp lead in conductors extending from said base portion into said bulb portion onto which are mounted an arc tube mounting frame and are tube, the improvement comprising:
mounting means connecting one end of said are tube to said frame, said mounting means including an elongated axially disposed pin and a member having an aperture therein; one of said pin and said member being fixed to said arc tube mounting frame and the other of said pin and said member being fixed to said one end of said are tube, said pin and said member providing the sole support for said one end of said are tube when said pin is received in said aperture in said member to thereby substantially restrict all lateral movement of said are tube with respect to said frame but permit substantially free axial movement of said are tube with respect to one end of said frame to thereby accommodate expansion of said are tube during operation of said lamp. 3. In a gas discharge lamp having a base portion, a sealed bulb portion connected thereto and a pair of lamp lead in conductors extending from said base portion into said bulb portion onto which are mounted an arc tube mounting frame and are tube, the improvement comprising:
mounting means connecting one end of said are tube to said frame, said mounting means including an elongated axially disposed pin welded to said frame and an eyelet attached to the end of said are tube having an aperture therein, said pin being received in said aperture in said eyelet to thereby substantially restrict all lateral movement of said arc tube with respect to said frame but permit substantially free axially movement of said are tube with respect to one end of said frame to thereby accommodate expansion of said are tube during operation of said lamp.
4. A gas discharge lamp according to claim 2 wherein said pin is axially connected to said are tube and said aperture is located in a transverse member secured to said frame.
5. A gas discharge lamp comprising in combination a base, an outer bulb sealed to said base and a reentrant stem press extending into said bulb from said base and having a pair of lamp lead in conductors extending therethrough;
an arc tube supporting frame mounted within said outer bulb on one of said lamp lead in conductors;
an arc tube electrically connected at one end directly to the other of said lamp lead in conductors; and
means electrically connecting the other end of said are tube to said frame, said means including a resilient spring clip connected at one end to said supporting frame and at the other end to said are tube, said resilient spring clip having a pair of bowed leg portions adapted to accommodate without significant restraint axial expansion of said are tube whereby said are tube will be free to expand axially while being retained in a position substantially centrally located with respect to said outer bulb.
6. A gas discharge lamp comprising in combination, a base, an outer bulb sealed to said base and a reentrant stem press extending into said bulb from said base and having a pair of lamp lead in conductors extending therethrough; I
an arc tube supporting frame mounted within said outer bulb on one of said lamp lead in conductors;
an arc tube electrically connected at one end directly to the other of said lamp lead in conductors; and
mounting means connecting the other end of said are tube to said frame, said mounting means including a centrally disposed axially positioned pin member and a member having an axially disposed aperture, one of said pin member and said member connected to said are tube and the other of said pin member and said member connected to said frame whereby said pin member extends through said aperture and is free to move therein and thereby provide the sole support for said other end of said are tube and permit said are tube to be free to expand axially while being retained in a position substantially centrally located with respect to said outer bulb.
7. A gas discharge lamp comprising in combination, a base, an outer bulb sealed to said base and a reentrant stem press extending into said bulb from said base and having a pair of lamp lead in conductors extending therethrough;
an arc tube supporting frame mounted within said outer bulb on one of said lead in conductors;
an arc tube electrically connected at one end directly to the other of said lamp lead in conductors; and
mounting means connecting the other end of said arc tube to said frame, said mounting means including a centrally disposed axially positioned pin member welded to said frame and an eyelet having an axially disposed aperture therein attached to the end of said are tube, said pin member extending through said aperture and free to move therein to thereby permit said are tube to be free to expand axially while being retained in position substantially centrally located with respect to said outer bulb.
8. A gas discharge lamp according to claim 6 wherein said pin member is axially connected to said are tube and said aperture is located in a transverse member secured to said frame.
Claims (7)
1. In a gas discharge lamp having a base portion, a sealed bulb portion connected thereto and a pair of lamp lead in conductors extending from said base portion into said bulb portion onto which are mounted an arc tube mounting frame and arc tube, the improvement comprising: mounting means connecting said arc tube to said frame, said mounting means including a resilient spring clip welded at one end to said frame and at the other end to said arc tube, said resilient spring clip including a bowed horizontally disposed section adapted to substantially restrict all lateral movement of said arc tube with respect to said frame but permitting substantially free axial movement of said arc tube with respect to one end of said frame to thereby accommodate expansion of said arc tube during operation of said lamp.
2. In a gas discharge lamp having a base portion, a sealed bulb portion connected thereto and a pair of lamp lead in conductors extending from said base portion into said bulb portion onto which are mounted an arc tube mounting frame and arc tube, the improvement comprising: mounting means connecting one end of said arc tube to said frame, said mounting means including an elongated axially disposed pin and a member having an aperture therein; one of said pin and said member being fixed to said arc tube mounting frame and the other of said pin and said member being fixed to said one end of said arc tube, said pin and said member providing the sole support for said one end of said arc tube when said pin is received in said aperture in said member to thereby substantially restrict all lateral movement of said arc tube with respect to said frame but permit substantially free axial movement of said arc tube with respect to one end of said frame to thereby accommodate expansion of said arc tube during operation of said lamp. 3. In a gas discharge lamp having a base portion, a sealed bulb portion connected thereto and a pair of lamp lead in conductors extending from said base portion into said bulb portion onto which are mounted an arc tube mounting frame and arc tube, the improvement comprising: mounting means connecting one end of said arc tube to said frame, said mounting means including an elongated axially disposed pin welded to said frame and an eyelet attached to the end of said arc tube having an aperture therein, said pin being received in said aperture in said eyelet to thereby substantially restrict all lateral movement of said arc tube with respect to said frame but permit substantially free axially movement of said arc tube with respect to one end of said frame to thereby accommodate expansion of said arc tube during operation of said lamp.
4. A gas discharge lamp according to claim 2 wherein said pin is axially connected to said arc tube and said aperture is located in a transverse member secured to said frame.
5. A gas discharge lamp comprising in combination a base, an outer bulb sealed to said base and a reentrant stem press extending into said bulb from said base and having a pair of lamp lead in conductors extending therethrough; an arc tube supporting frame mounted within said outer bulb on one of said lamp lead in conductors; an arc tube electrically connected at one end directly to the other of said lamp lead in conductors; and means electrically connecting the other end of said arc tube to said frame, said means including a resilient spring clip connected at one end to said supporting frame and at the other end to said arc tube, said resilient spring clip having a pair of bowed leg portions adapted to accommodate without significant restraint axial expansion of said arc tube whereby said arc tube will be free to expand axially while being retained in a position substantially centrally located with respect to said outer bulb.
6. A gas discharge lamp comprising in combination, a base, an outer bulb sealed to said base and a reentrant stem press extending into said bulb from said base and having a pair of lamp lead in conductors extending therethrough; an arc tube supporting frame mounted within said outer bulb on one of said lamp lead in conductors; an arc tube electrically connected at one end directly to the other of said lamp lead in conductors; and mounting means connecting the other end of said arc tube to said frame, said mounting means including a centrally disposed axially positioned pin member and a member having an axially disposed aperture, one of said pin member and said member connected to said arc tube and the other of said pin member and said member connected to said frame whereby said pin member extends through said aperture and is free to move therein and thereby provide the sole support for said other end of said arc tube and permit said arc tube to be free to expand axially while being retained in a position substantially centrally located with respect to said outer bulb.
7. A gas discharge lamp comprising in combination, a base, an outer bulb sealed to said base and a reentrant stem press extending into said bulb from said base and having a pair of lamp lead in conductors extending therethrough; an arc tube supporting frame mounted within said outer bulb on one of said lead in conductors; an arc tube electrically connected at one end directly to the other of said lamp lead in conductors; and mounting means connecting the other end of said arc tube to said frame, said mounting means including a centrally disposed axially positioned pin member welded to said frame and an eyelet having an axially disposed aperture therein attached to the end of said arc tube, said pin member extending through said aperture and free to move therein to thereby permit said arc tube to be free to expand axially while being retained in position substantially centrally located with respect to said outer bulb.
8. A gas discharge lamp according to claim 6 wherein said pin member is axially connected to said arc tube and said aperture is located in a transverse member secured to said frame.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US88959769A | 1969-12-31 | 1969-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3623134A true US3623134A (en) | 1971-11-23 |
Family
ID=25395422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US889597A Expired - Lifetime US3623134A (en) | 1969-12-31 | 1969-12-31 | Arc tube centering device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3623134A (en) |
| BE (1) | BE761107A (en) |
| DE (1) | DE2061279C3 (en) |
| GB (1) | GB1323481A (en) |
| NL (1) | NL7017151A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3882346A (en) * | 1973-11-05 | 1975-05-06 | Gen Electric | Ceramic arc tube mounting structure |
| US3996487A (en) * | 1975-05-14 | 1976-12-07 | Westinghouse Electric Corporation | Ceramic discharge lamp with reduced heat drain |
| US20090236986A1 (en) * | 2008-03-24 | 2009-09-24 | Chung-Yao Chao | High intensity discharge lamp |
| US8432093B2 (en) | 2010-05-13 | 2013-04-30 | Eye Lighting International Of North America, Inc. | Ruggedized lamp construction, and method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HU186682B (en) * | 1983-04-08 | 1985-09-30 | Tungsram Reszvenytarsasag | High-frequency gas-discharge lamp system |
| DE29817633U1 (en) * | 1998-10-02 | 2000-02-17 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Electric lamp with a base on one side |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2173261A (en) * | 1936-04-22 | 1939-09-19 | Westinghouse Electric & Mfg Co | Mounting for high pressure discharge lamps |
-
1969
- 1969-12-31 US US889597A patent/US3623134A/en not_active Expired - Lifetime
-
1970
- 1970-11-24 NL NL7017151A patent/NL7017151A/xx not_active Application Discontinuation
- 1970-12-07 GB GB5797670A patent/GB1323481A/en not_active Expired
- 1970-12-12 DE DE2061279A patent/DE2061279C3/en not_active Expired
- 1970-12-31 BE BE761107A patent/BE761107A/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2173261A (en) * | 1936-04-22 | 1939-09-19 | Westinghouse Electric & Mfg Co | Mounting for high pressure discharge lamps |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3882346A (en) * | 1973-11-05 | 1975-05-06 | Gen Electric | Ceramic arc tube mounting structure |
| US3996487A (en) * | 1975-05-14 | 1976-12-07 | Westinghouse Electric Corporation | Ceramic discharge lamp with reduced heat drain |
| US20090236986A1 (en) * | 2008-03-24 | 2009-09-24 | Chung-Yao Chao | High intensity discharge lamp |
| US8022630B2 (en) * | 2008-03-24 | 2011-09-20 | Osram Sylvania Inc. | High intensity discharge lamp with corrosion-resistant electrical connector |
| US8432093B2 (en) | 2010-05-13 | 2013-04-30 | Eye Lighting International Of North America, Inc. | Ruggedized lamp construction, and method |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7017151A (en) | 1971-07-02 |
| BE761107A (en) | 1971-06-30 |
| DE2061279C3 (en) | 1980-07-24 |
| DE2061279B2 (en) | 1979-11-08 |
| GB1323481A (en) | 1973-07-18 |
| DE2061279A1 (en) | 1971-07-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: NORTH AMERICAN PHILIPS ELECTRIC CORP. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WESTINGHOUSE ELECTRIC CORPORATION;REEL/FRAME:004113/0393 Effective date: 19830316 |