US3119302A - Gas sealed explosive propelling arrangement - Google Patents

Gas sealed explosive propelling arrangement Download PDF

Info

Publication number
US3119302A
US3119302A US114891A US11489161A US3119302A US 3119302 A US3119302 A US 3119302A US 114891 A US114891 A US 114891A US 11489161 A US11489161 A US 11489161A US 3119302 A US3119302 A US 3119302A
Authority
US
United States
Prior art keywords
diaphragm
seal
gas pressure
closed
closed end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US114891A
Inventor
Irwin R Barr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Textron Systems Corp
Original Assignee
Aircraft Armaments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aircraft Armaments Inc filed Critical Aircraft Armaments Inc
Priority to US114891A priority Critical patent/US3119302A/en
Application granted granted Critical
Publication of US3119302A publication Critical patent/US3119302A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
    • F42B15/36—Means for interconnecting rocket-motor and body section; Multi-stage connectors; Disconnecting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/005—Breakbolts loosening due to the action of an explosive charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/006—Explosive bolts; Explosive actuators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S30/00—Cutlery
    • Y10S30/04—Explosive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49805—Shaping by direct application of fluent pressure
    • Y10T29/49806—Explosively shaping
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49815—Disassembling
    • Y10T29/49821—Disassembling by altering or destroying work part or connector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49815—Disassembling
    • Y10T29/49822—Disassembling by applying force

Description

Jan. 28, 1964 1. R. BARR 3,119,302
GAS SEALED EXPLOSIVE PROPELLING ARRANGEMENT Filed June 5. 1961 4o /Rw//v R. BARR INVENTOR.
BY DONALD M. SANDLER 20 F G 5 THOMAS J HOLDEN ATTORNEYS United States Patent 3,119,302 GAS SEALED EXPLQSHVL lRUPELLlNG ARRANQlEh BENT Erwin l2. Barr, Luthervilie, Md, assignor to Aircraft Armaments, inc, Coclreysville, With, a corporation of Maryland Filed June 5, 1% Ser. No. 114,891 6 Claims. (Cl. i 1) This invention relates to gas sealed propelling arrangements, the invention being illustrated as embodied in a separable bolt having an explosive charge which, when selectively actuated, causes the bolt to separate whereby adjacent bulkheads to which the bolt may be connected can be separated.
in explosively actuated separable bolts, as well as other propelling arrangements for various materials to be pro pelled it is often desirable to seal the generated propelling gases from the surrounding atmosphere, as well as from the material being propelled. It is also often of importance to provide a high initial propelling impulse force on the propelled material.
It is accordingly a feature of the present invention to provide an improved gas sealed propelling arrangement in which a high initial impulse force is exerted on the material being propelled.
In tse illustrative embodiment this feature is achieved through the embodiment of an explosive charge actuated gas propelling device, which in the present instance is a separable bolt, and which incorporates a propellablecharge-carrying cup-shaped gas seal having a closed tube end extending toward and adjacent the explosive charge, with gas flow inhibiting or sealing means at this closed tube end of the seal to inhibit or substantially seal off forward gas flow from the explosive charge Zone at this closed end to the zone laterally surrounding this chargecarrying tubular portion of the seal during at least the initial portion of longitudinal movement of the tubular portion of the seal, and thereby yielding among its advantages the efiecting of a higher initial propelling pressure and propelling force on the closed tube end of the cup seal and the charge of material which is initially carried by and within the tubular portion of the seal than would be present without this gas flow inhibiting or sealing means.
Still other objects and attendant advantages will become apparent to one skilled in the art from a reading of the following detailed description of one preferred physi cal embodiment constructed in accordance therewith, taken in conjunction with the accompanying drawings where- FIGURE 1 shows separablebolts connecting a twostage rocket, with parts cutaway to illustrate internal construction.
FKGU'RE 2 is a sectional View of a separable bolt taken generally along the line 2-2, and showing how the bolt mechanically interconnects adjacent bulkheads.
FIGURE 3 is a sectional view similar to FIGURE 2, but showing how actuation of the bolt causes the mechanical connection between the bulkheads to fail.
FIGURE 4 is a sectional view similar to- FIGURE 3, but showing how propellant gases react to thrust the bull heads apart.
FIGURE 5 shows how all of the propellent gases pro- W aliases Fa'tented Jan. 28, 1964 ice duced when the bolt is actuated are entirely contained within a closed chamber.
Referring now to FIGURE 1, the interconnection between adjacent stages it? and ill of rocket 12. is shown. doth stages are cylindrical and have abutting ends 13. Bulkhead in on stage ll) is spaced from bulkhead 15 on stage Ill. A plurality of separable bolts 16 interconnect bulkhead l t to bulkhead 15 such that stages Ill and 11 form an integral structural unit.
Referring now to FIGURE 2, bolt 16 is seen to include tubular sleeve 17 extending between bulkheads l4 and 15. Boss 13 adjacent one end of sleeve 17 abuts bulkhead which has aperture 19 through which the sleeve extends. This end of sleeve 17 is threaded to receive locking unt 2% which securely connects the sleeve to bulkhead 1d. The opposite axial end of sleeve 17 is closed and or" reduced diameter to form threaded bolt 21 which extends through aperture 22 in bulkhead 15. Lock nut 23 threaded onto bolt 21 securely connects the sleeve to bulkhead 15. in the above manner, the axial ends are rigidly connected to opposite bulkheads.
Sleeve 17 has cylindrical bore 24 with threaded opening 25 at the end of the sleeve connected to bulkhead 14. Closure body 26 is threaded into opening 25 for closing the same, and has an exposed end 27 threaded to receive an electrical connector 23. Stepped recess 29 in closure 26 is provided for electrical primer 3% used to detonate a charge contained in pocket 31 when power is supplied through connection 23 to pins 32 interconnected by bridge wires 33.
Cylindrical push rod 34 is smaller in diameter than the bore. Projection 35 concentric with red 34 on one end thereof is engaged in recess 36 in the closed end of sleeve 17 adjacent bulkhead 15 to limit movement of the rod toward bulkhead 15. As seen in the drawing, rod 34 is concentric in bore 24 and extends toward closure 2'6, terminating in a transverse face 37. Any other equivalent connection between rod 34 and bulkhead 15 could be used.
To disconnect bulkheads lid and 15, weakened portion is provided in sleeve 17 in the form of a circumferential groove. The sleeve thickness is thus locally reduced resulting in failure at the groove when a predetermined force is applied to the bulkheads tending to separate them. Such force is generated by propellent gases acting on casing 39.
Casing 33 is located in bore 2e adjacent the closed end thereof and is interposed between sleeve 1'7 and rod 34. Casing 39 includes a first tubular section 443 of substantially the same diameter as the bore engaged therein. One end of section so is rigidly attached to closure as by suitable mean-s. As previously described, closure 26 is rigidly attached to sleeve 17. Section i-tl thus extends away from closure as and constitutes a portion of the casing that is fixed to the sleeve. Casing 39 also includes a circumferential flange 4-1, at the end of section ill remote from closure 26, that extends into the bore at a point axially spaced from the closure. Cylindrical deformable tube 42 having one end connected to flange 41 is a portion of the casing that is concentric with both section id and bore 2d, and extends toward closure 26 to define annular chamber 5%. Tube &2 is engaged with rod 34 for coaxially supporting the same in the bore. The other end of tube 42 has transverse face 46 engaged with face 37 on rod 34.
Face 43 forms a casing closure closing that end of the tube. Thus, the tube forms a portion of the closed annular chamber 50.
Face 43 of the casing is slightly spaced from primer 3b attached to the closure body. However, annular extension 51 on closure 26 extends into annular chamber as best seen in FIGURE 2. Thus, extension 51 effective- 1y separates annular chamber 59 from primary chamber 52 defined in part by the space between face 43 and the closure body. Actually, both primary chamber 52 and annular chamber are small.
In operation, poover supplied to pins 32 causes bridge wires 33 to ignite a charge in pocket 3-1. Because primary chamber 52 is relatively small, tie pressure therein reaches a relatively high level exerting on face 3 an axial force directed toward bulkhead i5. Annular extension 51 on the closure body prevents a significant amount of gas from expanding into chamber 50 with the result that a very large axial force is exerted on rod 34 imparting axial movement thereto away from bulkhead 14 since the shoulder connecting rod 34 to extension 35 prevents relalive movement of rod 34 toward bulkhead As a re- 'sult, sleeve 17 fails at groove 3% after initial axial displacement of face 4-3, tube 42 sliding relative to extension 51.
As shown in FIGURE 3, propellant gases in the primary cha'mbe' expand into annular chamber 53 as face 43 is axially displaced beyond the free edge of annular extension 51. Such axial displacement of face 43 along the bore away from the closure deforms tube 42 into another tube substantially the same diameter as the bore that extends from the portion of casing 39 fixed to the sleeve away from the closure. Tube 42, however, remains connected to tube ill throughout axial displacernent of face 43 for entirely containing the propellant gases within a closed chamber. In this way, the energy in the gases is not dissipated as in the normal case, but is used to thrust the rod away from bulkhead 14.
Rod 34 is coaxially supported during axial displacement of face 43 by the portion of tube 42 that remains undeforrned prior to maximum axial displacement of the face as can be seen in FIGURE 3. As a result of this construction, the propellant gases react first in a small volume to achieve high pressures and cause a high resultant axial force to be applied to the push rod. This causes failure of the mechanical connection between the bulkheads. Next, the deformable tube coaxially supports the push rod as deformation occurs. All the propellant gases remain confined so that all Olf the energy in the gases is used to provide a thrust separating the bulkheads.
While the invention has been illustrated with respect to a single physical embodiment constructed in accordance therewith, it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the scope and spirit of the invention. For instance, other desired charges than a solid rod can be propelled according to this invention, if so desired, and the invention can be practiced in other arrangements than separable bolts. Also, while an electric primer is shown in the illustrative embodiment, a mechanical primer could be used instead. Further propellant gases could be supplied from a gas generator :source removed from the connector and acting on the closed end of the tube seal. Accordingly, it is to be understood that the invention is not to be limited by the specific illustrative embodiment, but only by the scope of the appended claims.
What is claimed is:
1. A gas sealed propelling arrangement comprising a casing having a bore formed therein; a cup-shaped diaphragm seal having a longitudinally extending tubular body port-ion closed at one end and extending lengthwise along a portion of the length of said bore, a transversely out-folded end portion integral with and formed at the opposite end of said tubular body portion, and means connecting said outfolded end portion to said casing in substantially gas pressure sealing relation; explosive charge gas pressure generating means adjacent said one closed end of said cup-shaped diaphragm seal, an annular pressure seal unit mounted at said one closed end of and in contact with said diaphragm seal extending transversely beyond the end face of said closed end to substantially seal said explosive charge gas pressure generating means from the zone radially external of the circumferentially outer wall of said tubular body portion, whereby upon actuation of said explosive charge gas pressure generating means the explosive gas pressure action on said tubular portion of said diaphragm is substantially restricted to endwise thrust on said closed end of said tubular portion during at least the initial portion of endwise longitudinal movement of said diaphragm, and a longitudinally propcllable charge of material disposed within and carried by said tubular portion of said diaphragm.
2. Apparatus according to claim 1 wherein said propellable charge is a rig-id body.
3. Apparatus according to claim 1 wherein said casing encloses said diaphragm and said propellable charge, said casing bore being shorter than the combined effective length of said propellable charge within said bore and the longitudinally out-folded effective length of said dia phragm.
4-. Apparatus according to claim 1 wherein said annular pressure seal member is a sleeve surrounding said tubular portion of said diaphragm at said closed end thereof.
5. A gas sealed propelling arrangement comprising a casing having a bore formed therein; a cup-shaped diaphragm seal having a longitudinally extending tubular body portion closed at one end and extending lengthwise along a portion of the length of said bore, a transversely out-folded end portion integral with and formed at the opposite end of said tubular body portion, and means connecting said outfolded end portion to said casing in substantially gas pressure sealing relation explosive charge gas generating means adjacent said one closed end of said cup-shaped diaphragm seal, and external of said tubular body portion, and an annular sleeve separable from said seal and surrounding said tubular portion of said diaphragm at said one closed end thereof and thereby inhibiting gas flow from the zone adjacent said explosive charge gas generating means and one closed end toward said outfolded opposite end portion of said seal to thereby effect an initial higher gas pressure within the zone adjacent said closed end than would otherwise be present without said annular sleeve, and a longitudinally propellable charge of material disposed Within and carried by said tubular portion of said diaphragm.
6. A gas sealed propelling arrangement comprising a casing having a bore formed therein; a cup-shaped diaphragm seal having a longitudinally extending tubular body portion closed at one end and extending lengthwise along a portion of the length of said bore, a transversely out-folded end portion integral with and formed at the opposite end of said tubular body portion, and means connecting said outfolded end portion of said casing in substantially gas pressure sealing relation; explosive charge gas pressure generating means adjacent said one closed end of said cup-shaped diaphragm seal, said bore having a first annular confining wall portion disposed about said one closed end of said tubular portion and being substantially complementary to and surrounding the corresponding adjacent circumferential periphery of said tubular portion of said diaphragm, said bore having a second annular confining wall portion disposed contiguous with and extending longitudinally beyond said transversely out-folded opposite end portion of said diaphragm and being of larger diameter than said first wall portion by an amount in excess of the circumferential thickness of said tubular portion of said diaphragm, whereby said first wall portion serves as a gas flow restricting means and a lateral guide for movement of said tubrular portion during at least the initial lengthwise movement of said tndinally propellable charge of material disposed within and carried by said tubular portion of said diaphragm.
tubular portion away from said gas pressure generating References Cited in the file of this Patent means, and the relatively larger circumferential size of Said second Wall portion permitting sequential incremental 5 UNITED STATES PATENTS cold flow rolling out-folding of said tubular portion of 1,077,472, Hoffmann Nov. 4, 1913 said diaphragm to a new inside-out shape bounded by 2,421,807 Richey et a1. Tune 10, 1947 said larger diameter Wall portion during longitudinal 2,575,051 Rockwell Nov. 13, 1951 movement of said diaphragm therethrough, and a longi- 2,830,539 Cecil Apr. 15, 1958 10 2,883,910 Nessler Apr. 28, 1959

Claims (1)

1. A GAS SEALED PROPELLING ARRANGEMENT COMPRISING A CASING HAVING A BORE FORMED THEREIN; A CUP-SHAPED DIAPHRAGM SEAL HAVING A LONGITUDINALLY EXTENDING TUBULAR BODY PORTION CLOSED AT ONE END AND EXTENDING LENGTHWISE ALONG A PROTION OF THE LENGTH OF SAID BORE, A TRANSVERSELY OPPOSITE END OF SAID TUBULAR BODY PORTION, AND MEANS CONNECTING SAID OUTFOLDED END PORTION TO SAID CASING IN SUBSTNTIALLY GAS PRESSURE SEALING RELATION; EXPLOSIVE CHARGE GAS PRESSURE GENERATING MEANS ADJACENT SAID ONE CLOSED END OF SAID CUP-SHAPED DIAPHRAGM SEAL, AN ANNULAR PRESSURE SEAL UNIT MOUNTED AT SAID ONE CLOSED END OF AND IN CONTACT WITH SAID DIAPHRAGM SEAL EXTENDING TRANSVERSELY BEYOND THE END FACE OF SAID CLOSED END TO SUBSTANTIALLY SEAL SAID EXPLOSIVE CHARGE GAS PRESSURE GENERATING MEANS FROM THE ZONE RADIALLY EXTERNAL OF THE CIRCUMFERENTIALLY OUTER WALL OF SAID TUBULAR BODY PORTION, WHEREBY UPON ACTUATION OF SAID EXPLOSIVE CHARGE GAS PRESSURE GENERATING MEANS THE EXPLOSIVE GAS PRESSURE ACTION ON SAID TUBULAR PORTION OF SAID DIAPHRAGM IS SUBSTANTIALLY RESTRICTED TO ENDWISE THRUST ON SAID CLOSED END OF SAID TUBULAR PORTION DURING AT LEAST THE INITIAL PORTION OF ENDWISE LONGITUDINAL MOVEMENT OF SAID DIAPHRAGM, AND A LONGITUDINALLY PROPELLABLE CHARGE OF MATERIAL DISPOSED WITHIN AND CARRIED BY SAID TUBULAR PORTION OF SAID DIAPHRAGM.
US114891A 1961-06-05 1961-06-05 Gas sealed explosive propelling arrangement Expired - Lifetime US3119302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US114891A US3119302A (en) 1961-06-05 1961-06-05 Gas sealed explosive propelling arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US114891A US3119302A (en) 1961-06-05 1961-06-05 Gas sealed explosive propelling arrangement

Publications (1)

Publication Number Publication Date
US3119302A true US3119302A (en) 1964-01-28

Family

ID=22358051

Family Applications (1)

Application Number Title Priority Date Filing Date
US114891A Expired - Lifetime US3119302A (en) 1961-06-05 1961-06-05 Gas sealed explosive propelling arrangement

Country Status (1)

Country Link
US (1) US3119302A (en)

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233499A (en) * 1962-09-14 1966-02-08 Hi Shear Corp Fastener with fluid retention means
US3249010A (en) * 1965-03-30 1966-05-03 Lockheed Aircraft Corp Zip cartridge
US3262351A (en) * 1964-03-20 1966-07-26 James E Webb Separation nut
US3309961A (en) * 1964-06-30 1967-03-21 David A Lee Hermetically sealed explosive release mechanism
US3325075A (en) * 1963-12-28 1967-06-13 Asahi Chemical Ind Tool for explosive spot welding
US3344742A (en) * 1965-05-10 1967-10-03 Cornell Aeronautical Labor Inc Explosive projector
US3362290A (en) * 1965-04-13 1968-01-09 Mc Donnell Douglas Corp Non-contaminating thrusting separation system
US3404598A (en) * 1966-12-30 1968-10-08 Aai Corp Cup-sealed actuator with obturating groove anchoring and sealing arrangement
US3486410A (en) * 1968-04-18 1969-12-30 Mc Donnell Douglas Corp Explosive severance means
US3500716A (en) * 1968-03-15 1970-03-17 Us Air Force Bomb ejector
US3529417A (en) * 1967-11-16 1970-09-22 Trw Inc Fluid pressure actuated linear force generating means
US3738271A (en) * 1970-12-18 1973-06-12 Us Army Grenade round with means giving forward momentum to the fired case
US3948143A (en) * 1974-07-24 1976-04-06 Olsen Charles R Electropyrotechnic link
US3967552A (en) * 1974-12-17 1976-07-06 The United States Of America As Represented By The Secretary Of The Army Percussion ignition system for a smokeless, flashless, low noise cartridge
US4045959A (en) * 1975-03-17 1977-09-06 Honeywell Inc. Expanded ring bellows
US4047465A (en) * 1976-07-23 1977-09-13 The United States Of America As Represented By The Secretary Of The Army Telescoped explosive driver
US4121854A (en) * 1976-04-23 1978-10-24 Etablissements Ruggieri Electro-pyrotechnic unlocking device, in particular for a safety fixture for a ski
US4171663A (en) * 1977-11-22 1979-10-23 The United States Of America As Represented By The Secretary Of The Army Tension fracture fitting in missile separation thruster
US4283987A (en) * 1979-06-25 1981-08-18 Cartridge Actuated Devices, Inc. Explosive release clamp system
US4458576A (en) * 1980-12-19 1984-07-10 Shell Oil Company Stroking mechanism
US4478150A (en) * 1983-01-12 1984-10-23 The United States Of America As Represented By The Secretary Of The Army Cartridge with elastic pusher cup
US4619199A (en) * 1984-07-31 1986-10-28 The United States Of America As Represented By The Secretary Of The Air Force Safing and arming mechanism
US4754706A (en) * 1983-06-27 1988-07-05 Etienne Lacroix Tous Artifices Munition scattering projectile
US4860698A (en) * 1988-05-11 1989-08-29 Networks Electronic Corp. Pyrotechnic piston device
US5115708A (en) * 1990-04-27 1992-05-26 Aerospatiale Societe Nationale Industrielle Device for temporary mechanical attachment of an object to a support and rapid ejection of the object from the support
US5136925A (en) * 1990-04-27 1992-08-11 Aerospatiale Societe Nationale Industrielle Device for temporary attachment of an object to a support designed to fracture at a predetermined tensile load
US5372071A (en) * 1993-07-13 1994-12-13 Tracor, Inc. Thrusting separation system
EP1108971A1 (en) * 1999-12-13 2001-06-20 Audi Ag Emergency exit device for motor vehicles
US20050066840A1 (en) * 2003-09-26 2005-03-31 Michel Matthew Alan System for dispensing projectiles and submunitions
US20060027120A1 (en) * 2002-07-11 2006-02-09 Smith Bradley W Assemblies including extendable, reactive charge-containing actuator devices
US20060156527A1 (en) * 2005-01-19 2006-07-20 Gray Luke G Explosive tube Removal device
EP1705389A3 (en) * 2005-03-21 2006-11-29 Dassault Aviation Assembly device comprising pyrotechnical rupture means
DE102005030092A1 (en) * 2005-06-27 2006-12-28 Diehl Bgt Defence Gmbh & Co. Kg Parachute cartridge/monitoring missile separation bolt, has piston which is fit in axial direction, where piston is accelerated in axial direction during ignition of propelling set
US20090007765A1 (en) * 2006-02-23 2009-01-08 Hunn David L Apparatus and method for launching a vehicle
US20090229485A1 (en) * 2008-03-14 2009-09-17 Autoliv Asp, Inc. Pyrotechnic actuator for retracting a piston
US20120137917A1 (en) * 2010-12-06 2012-06-07 Golden Peter J Low shock rocket body separation
US8439301B1 (en) 2011-07-18 2013-05-14 Systems Engineering Associates Corporation Systems and methods for deployment and operation of unmanned aerial vehicles
DE102011013255B4 (en) 2011-03-07 2024-01-04 Zf Airbag Germany Gmbh Unlocking device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1077472A (en) * 1912-07-18 1913-11-04 Josef Hofmann Pneumatic spring.
US2421807A (en) * 1945-04-26 1947-06-10 United Aircraft Corp Explosive-release mechanism
US2575051A (en) * 1945-07-09 1951-11-13 Buckeye Lab Corp Process for purifying oil by distillation
US2830539A (en) * 1951-08-02 1958-04-15 Jr Eugene L Cecil Arming device for a fuze
US2883910A (en) * 1956-06-18 1959-04-28 Thomas G Nessler Airborne store ejector bolt

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1077472A (en) * 1912-07-18 1913-11-04 Josef Hofmann Pneumatic spring.
US2421807A (en) * 1945-04-26 1947-06-10 United Aircraft Corp Explosive-release mechanism
US2575051A (en) * 1945-07-09 1951-11-13 Buckeye Lab Corp Process for purifying oil by distillation
US2830539A (en) * 1951-08-02 1958-04-15 Jr Eugene L Cecil Arming device for a fuze
US2883910A (en) * 1956-06-18 1959-04-28 Thomas G Nessler Airborne store ejector bolt

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233499A (en) * 1962-09-14 1966-02-08 Hi Shear Corp Fastener with fluid retention means
US3325075A (en) * 1963-12-28 1967-06-13 Asahi Chemical Ind Tool for explosive spot welding
US3262351A (en) * 1964-03-20 1966-07-26 James E Webb Separation nut
US3309961A (en) * 1964-06-30 1967-03-21 David A Lee Hermetically sealed explosive release mechanism
US3249010A (en) * 1965-03-30 1966-05-03 Lockheed Aircraft Corp Zip cartridge
US3362290A (en) * 1965-04-13 1968-01-09 Mc Donnell Douglas Corp Non-contaminating thrusting separation system
US3344742A (en) * 1965-05-10 1967-10-03 Cornell Aeronautical Labor Inc Explosive projector
US3404598A (en) * 1966-12-30 1968-10-08 Aai Corp Cup-sealed actuator with obturating groove anchoring and sealing arrangement
US3529417A (en) * 1967-11-16 1970-09-22 Trw Inc Fluid pressure actuated linear force generating means
US3500716A (en) * 1968-03-15 1970-03-17 Us Air Force Bomb ejector
US3486410A (en) * 1968-04-18 1969-12-30 Mc Donnell Douglas Corp Explosive severance means
US3738271A (en) * 1970-12-18 1973-06-12 Us Army Grenade round with means giving forward momentum to the fired case
US3948143A (en) * 1974-07-24 1976-04-06 Olsen Charles R Electropyrotechnic link
US3967552A (en) * 1974-12-17 1976-07-06 The United States Of America As Represented By The Secretary Of The Army Percussion ignition system for a smokeless, flashless, low noise cartridge
US4045959A (en) * 1975-03-17 1977-09-06 Honeywell Inc. Expanded ring bellows
US4121854A (en) * 1976-04-23 1978-10-24 Etablissements Ruggieri Electro-pyrotechnic unlocking device, in particular for a safety fixture for a ski
US4047465A (en) * 1976-07-23 1977-09-13 The United States Of America As Represented By The Secretary Of The Army Telescoped explosive driver
US4171663A (en) * 1977-11-22 1979-10-23 The United States Of America As Represented By The Secretary Of The Army Tension fracture fitting in missile separation thruster
US4283987A (en) * 1979-06-25 1981-08-18 Cartridge Actuated Devices, Inc. Explosive release clamp system
US4458576A (en) * 1980-12-19 1984-07-10 Shell Oil Company Stroking mechanism
US4478150A (en) * 1983-01-12 1984-10-23 The United States Of America As Represented By The Secretary Of The Army Cartridge with elastic pusher cup
US4754706A (en) * 1983-06-27 1988-07-05 Etienne Lacroix Tous Artifices Munition scattering projectile
US4619199A (en) * 1984-07-31 1986-10-28 The United States Of America As Represented By The Secretary Of The Air Force Safing and arming mechanism
US4860698A (en) * 1988-05-11 1989-08-29 Networks Electronic Corp. Pyrotechnic piston device
US5115708A (en) * 1990-04-27 1992-05-26 Aerospatiale Societe Nationale Industrielle Device for temporary mechanical attachment of an object to a support and rapid ejection of the object from the support
US5136925A (en) * 1990-04-27 1992-08-11 Aerospatiale Societe Nationale Industrielle Device for temporary attachment of an object to a support designed to fracture at a predetermined tensile load
US5372071A (en) * 1993-07-13 1994-12-13 Tracor, Inc. Thrusting separation system
US5585596A (en) * 1993-07-13 1996-12-17 Tracor, Inc. Thrusting separation system
EP1108971A1 (en) * 1999-12-13 2001-06-20 Audi Ag Emergency exit device for motor vehicles
US20060027120A1 (en) * 2002-07-11 2006-02-09 Smith Bradley W Assemblies including extendable, reactive charge-containing actuator devices
US20050066840A1 (en) * 2003-09-26 2005-03-31 Michel Matthew Alan System for dispensing projectiles and submunitions
US7004073B2 (en) * 2003-09-26 2006-02-28 Lockheed Martin Corporation System for dispensing projectiles and submunitions
US20060156527A1 (en) * 2005-01-19 2006-07-20 Gray Luke G Explosive tube Removal device
US7322090B2 (en) * 2005-01-19 2008-01-29 Babcock & Wilcox Canada Ltd. Explosive tube removal device
EP1705389A3 (en) * 2005-03-21 2006-11-29 Dassault Aviation Assembly device comprising pyrotechnical rupture means
NO337048B1 (en) * 2005-03-21 2016-01-11 Dassault Aviation Sa Pyrotechnic breaking device
CN101495831B (en) * 2005-06-16 2013-03-27 奥托里夫Asp股份有限公司 Assemblies including extendable, reactive charge-containing actuator devices
DE102005030092A1 (en) * 2005-06-27 2006-12-28 Diehl Bgt Defence Gmbh & Co. Kg Parachute cartridge/monitoring missile separation bolt, has piston which is fit in axial direction, where piston is accelerated in axial direction during ignition of propelling set
US7484450B2 (en) * 2006-02-23 2009-02-03 Lockheed Martin Corporation Apparatus and method for launching a vehicle
US20090007765A1 (en) * 2006-02-23 2009-01-08 Hunn David L Apparatus and method for launching a vehicle
US20090229485A1 (en) * 2008-03-14 2009-09-17 Autoliv Asp, Inc. Pyrotechnic actuator for retracting a piston
US7735405B2 (en) * 2008-03-14 2010-06-15 Autoliv Asp, Inc. Pyrotechnic actuator for retracting a piston
US20120137917A1 (en) * 2010-12-06 2012-06-07 Golden Peter J Low shock rocket body separation
US8607705B2 (en) * 2010-12-06 2013-12-17 Systima Technologies Inc. Low shock rocket body separation
DE102011013255B4 (en) 2011-03-07 2024-01-04 Zf Airbag Germany Gmbh Unlocking device
US8439301B1 (en) 2011-07-18 2013-05-14 Systems Engineering Associates Corporation Systems and methods for deployment and operation of unmanned aerial vehicles

Similar Documents

Publication Publication Date Title
US3119302A (en) Gas sealed explosive propelling arrangement
US3200706A (en) Gas actuated bolt disconnect
US3334536A (en) Releasable nut with radial and longitudinal lockout
US5265540A (en) Ammunition, in particular of the telescoped type
US3530759A (en) Explosively severable element
US2575071A (en) Explosive-operated device
US3405593A (en) Separation device
US4137848A (en) Rocket engine mount
US2996316A (en) Frangible securing means
US3032356A (en) Explosive means to separate casing members
US3352189A (en) Explosive bolt
US3070018A (en) Nose cone ejection system
US3678853A (en) Quick disconnect explosive connector assembly
US3270668A (en) Well-treating apparatus
US3111808A (en) Thruster
US3249050A (en) Continuous rod warhead
US3208381A (en) Device for the loading of bore holes with explosive
US3304865A (en) Self-sealing, unbonded, rocket motor nozzle closure
US2789505A (en) Liquid propellent rocket
US6148729A (en) Missile severance device
US3196746A (en) Explosive release fastener
US2464181A (en) Rocket device
US2996007A (en) Explosive train
US5959236A (en) Through bulkhead initiator
US3176615A (en) Gun-propelled rocket-boosted missile