US356997A - Simeon gil - Google Patents
Simeon gil Download PDFInfo
- Publication number
- US356997A US356997A US356997DA US356997A US 356997 A US356997 A US 356997A US 356997D A US356997D A US 356997DA US 356997 A US356997 A US 356997A
- Authority
- US
- United States
- Prior art keywords
- diaphragm
- rubber
- shells
- pump
- gil
- 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
Links
- MYEJFUXQJGHEQK-ALRJYLEOSA-N Proscillaridin Chemical compound O[C@@H]1[C@H](O)[C@@H](O)[C@H](C)O[C@H]1O[C@@H]1C=C2CC[C@H]3[C@@]4(O)CC[C@H](C5=COC(=O)C=C5)[C@@]4(C)CC[C@@H]3[C@@]2(C)CC1 MYEJFUXQJGHEQK-ALRJYLEOSA-N 0.000 title 2
- 210000000188 Diaphragm Anatomy 0.000 description 68
- 229920001971 elastomer Polymers 0.000 description 26
- 240000002027 Ficus elastica Species 0.000 description 14
- 229920001195 polyisoprene Polymers 0.000 description 14
- 239000004744 fabric Substances 0.000 description 8
- 241000239290 Araneae Species 0.000 description 6
- 210000000614 Ribs Anatomy 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 240000008213 Brosimum alicastrum Species 0.000 description 2
- 229920002160 Celluloid Polymers 0.000 description 2
- DTAPQAJKAFRNJB-UHFFFAOYSA-N Promecarb Chemical compound CNC(=O)OC1=CC(C)=CC(C(C)C)=C1 DTAPQAJKAFRNJB-UHFFFAOYSA-N 0.000 description 2
- 210000004722 Stifle Anatomy 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 231100000078 corrosive Toxicity 0.000 description 2
- 231100001010 corrosive Toxicity 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000005828 ramon Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/14—Pumps characterised by muscle-power operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0054—Special features particularities of the flexible members
- F04B43/0063—Special features particularities of the flexible members bell-shaped flexible members
-
- 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
- Y10T137/00—Fluid handling
- Y10T137/2931—Diverse fluid containing pressure systems
- Y10T137/2937—Gas pressure discharge of liquids feed traps [e.g., to boiler]
- Y10T137/294—Gas pressure controlled by amount of liquids in boiler or discharge receiver
Definitions
- This invention relates to pumps wherei'n a the making of a tight joint around the dia-- phragm. This'diaphragmis clamped betweenthe edges of'the two opposite sh'ells'orparts of 3 the pump-chamber, which arefpreferably of approximately conical form, and the center;
- Avalve may be placed in the center of the diaphragm.
- Figure-l is a side'elevation, partly in transverse section, of my improved diaphragm'or:
- Fig. 2 is a vertical section of a double-actingforce-pump-constructed according to my in-' vention, and Fig.3isa fr nt elcvationthereof.
- Fig. 4 i'sa view similar tov Fig; 1, showing a modified construction-of diaphragm.
- Fig. 5 is a vertical section of a double-actingforce-pump-constructed according to my in-' vention, and Fig.3isa fr nt elcvationthereof.
- Fig. 4 i'sa view similar tov Fig; 1, showing a modified construction-of diaphragm.
- Fig. 5 is a vertical section of a double-actingforce-pump-constructed according to my in-' vention, and Fig.3isa fr nt elcvationthereof.
- Fig. 4 i'sa view similar tov Fig; 1, showing a modified construction-of diaphragm.
- .,-4o is a side elevation, partly'in vertical section
- Fig. 6 is a side elevation, partly in section, of a fire-pump having two chambers, each provided with a single acting diaphragm constructed with a valve at its ccnter;' and Fig. 7,is an: elevation,
- shells are, by preference, of conical form,'or approximately so.
- j i O is the standard or base of the pump,whicli or be separate therefrom.
- D is the inlet, and E the discharge. Tis the pistonrod, and L the operatinglever'.
- VV are the valves.
- the diaphragm B is made of india-rubber, with concentric or v annular corrugations'or ribs. Its center is preferably ina different plane'from its edges, thus giving it a conical form, or approximatelyso. When pressed out of this shape,it tends somewhat forcibly t.o' return thereto.
- Embedded in the rubber are one, two, three,' or more stifi'eningrings b, b, of metal or-other suitable material. Around these rings the rubber is thickened or ribbed, and-between them it is comparatively thin and flexible.
- T'The rubber is toughened by one or more layers of strong K clothor other woven or textile fabric, a a.
- Two such layers are" shown embedded iuthe rubber nea'r its oppositesurfaces. They may, however, be upon the'exterior of the rubber, and they may be one or more in number.
- the margin or circumference of the diaphragm is provided with a ring, 6', embedded v.in it, and around this ring the rubberisthick cned or ribbed.
- the ring is preferably of' metal, in which case it not only thickens the rubber, but also forms a stifl'ening for the circumference of the diaphragm.
- the soft edge of the diaphragm forms a pad or cushion for making a tight joint between the flanges of the shells A A.
- one of the shells A has a flange, d, which extends'over and incloses the edge of the diaphragm, thus concealing it.
- the piston-rod has a flange, e, fixed on it, which comes against one side of the diaphragm, and against the other side is placed a washer, f,
- FIG. 5 shows a pump constructed with this diaphragm, which is clamped at its-edges between the two shells A A by means of bolts or screws, which pass throughthe flanges of the shells, and also through the edge of the diaphragm. It is best when using this kind of diaphragmto make the shells A A with an easily-rounded curve for the outervmoving part of the diapiston-rod T is here fastened to the diaphragm In Figs. 6 and 7 the diaphragm is shown with one of the valves V carried in its center.
- the seat of this valve is formed at one end of a short tubeflr, which is placed in the hole a ring, m, forming part of an open spider, n, to which the end of the-piston-rodiT is screwed.
- a washer, c','and against it is screwed a' ring, j, forming part of a spider, Z, and to this spider ,is fixed a guideforming a continuation of the piston-
- the mechanical details of the several pumps shown will be readily understood from the Pumps constructed according to my invention may be worked by hand or power, maybe arranged at any depth; and, by virtue of my construction of the diaphragm, may'work un- My pumps may be applied either as suction or force pumps, and for the pumping of corrosive chemicals and gritty water, for the forcing of air, and for many different purposes.
- diaphragms of rigid mate-- rial such as metal, celluloid, &c.--have been made with parallel concentric annular crimps or corrugations, and that such diaphragms have-had their edges annularly crimped or corrugated for engagement with the shells between which theyare clamped.
- a pump-diaphragm of india-rubber constructed with a concentric stiffening-ring embedded in it, substantially as'described.
- a pump-diaphragm of india-rubber constructed with a middle layer of rubber rev enforced by two layers of tough cloth or similar textile fabric on its oppositesides, with a stiflening-ring embedded in said middle layer, and the rubber and cloth ribbed around said substantially as described.
- a pump diaphragm of india rubber constructed with an annularly-ribbed and internally-stifieued margin, forming a thickened cushion for engagement between the fasteningflanges, substantially as described.
- a pump -diaphragm of india rubber constructed with a ring embedded in it close to its margin and the rubber ribbed or thickened around said ring, substantially as described.v
- a pump-diaphragm of resilient indiarubber constructed of approximately .conical form and with concentric annular thickeningribs and intervening portionsof greater flexibility, substantially as described, whereby when the middle of the diaphragm is forced to one'si'de it tends 'to return to the other.
Description
(No Model.)
2 Sheets-Sheet 1. S. GIL.
k a N w k w k Q I INVENTOR: WITNESSES I f- A4400 fizz 7 By his Azzomzeys.
m. (3AM m (No Model.) 2 Sheets-Sheet 2.
INVENTOR: WITNESSES I Q v/M fizz/m. By his Aflarneys,
UNITED" STATES PATENT 'OFFICE;
.rSIMEON GIL," or noRDEAux, emotion, ASSlGNOR T THEJSOCIETE cAsrANon; MENENDEZ & GIL, OF :PARIS, FRANCE.
Poms.
SPECIFICATION forming part of Letters Patent No. 356,997 dated February 1, 1887. Application filed September 4. 1386. Serial No. 212,701. (No model.) latrntel in France February 17-, ,188G No. 174.133. f
To all whomit may concern: 3
Be it known that I, SIMnoN GIL, a citizen of theFrench Republic, residing in Bordeaux, Department of Gironde', France, have; in
5 vented certain new and useful Improvements in Pumps-of which the'following is a specification.
- This invention relates to pumps wherei'n a the making of a tight joint around the dia-- phragm. This'diaphragmis clamped betweenthe edges of'the two opposite sh'ells'orparts of 3 the pump-chamber, which arefpreferably of approximately conical form, and the center;
of the diaphragmis connected to apiston-rod, by the'reciprocation of which the diaphragm is displaced to one side orthe other. Avalve may be placed in the center of the diaphragm.
The accompanying drawings show-iny in 0 ve ntion'as'appliedto several different kinds.-
of pumps.
Figure-l is a side'elevation, partly in transverse section, of my improved diaphragm'or:
- flexible piston in; its preferred construction.
Fig; 2 is a vertical section of a double-actingforce-pump-constructed according to my in-' vention, and Fig.3isa fr nt elcvationthereof. i Fig. 4 i'sa view similar tov Fig; 1, showing a modified construction-of diaphragm. Fig. 5
.,-4o is a side elevation, partly'in vertical section,
of a double-acting force-pump fitted with the diaphragm shown in Fig. 4. Fig. 6is a side elevation, partly in section, of a fire-pump having two chambers, each provided with a single acting diaphragm constructed with a valve at its ccnter;' and Fig. 7,is an: elevation,
. clamping thediaphragm B between'them. The
shells are, by preference, of conical form,'or approximately so. j i O is the standard or base of the pump,whicli or be separate therefrom.
D is the inlet, and E the discharge. Tis the pistonrod, and L the operatinglever'.
VV are the valves.
may be in one piece .with one of the shells A, I
Referring especially to Fig.1,the diaphragm B is made of india-rubber, with concentric or v annular corrugations'or ribs. Its center is preferably ina different plane'from its edges, thus giving it a conical form, or approximatelyso. When pressed out of this shape,it tends somewhat forcibly t.o' return thereto. Embedded in the rubber are one, two, three,' or more stifi'eningrings b, b, of metal or-other suitable material. Around these rings the rubber is thickened or ribbed, and-between them it is comparatively thin and flexible. T'The rubber is toughened by one or more layers of strong K clothor other woven or textile fabric, a a.
Two such layers are" shown embedded iuthe rubber nea'r its oppositesurfaces. They may, however, be upon the'exterior of the rubber, and they may be one or more in number.
The margin or circumference of the diaphragm is provided with a ring, 6', embedded v.in it, and around this ring the rubberisthick cned or ribbed. The ring is preferably of' metal, in which case it not only thickens the rubber, but also forms a stifl'ening for the circumference of the diaphragm.
*retainingj of the latter in place when clamped between the two shells A A Of the pump-chamber. These shells have grooves or annular Thethickening or enlargement of the rubber near the edge of the diaphragm facilitates the indentations extending around their flanged.
edges,'aud coinciding with the ribs on the diaphragm occasioned by the ring b, so that the edge of the diaphragm cannot be pulled .out
- from between the shells A A by any pressure that may be brought to bear on the diaphragm passed through perforated ears e 0, formed onback and forth the diaphragm is displaced at chamber to the other, thus alternately expand= ing and contracting the spaces or divisions of phragm to bend over, as shown in Fig. 5. Theby collars e e, pressed together by wedges h h.
. through the diaphragm. On one side is screwed Q I rod, T,
rod.
drawings, and require-no description.
v pumps.
7 der heavy pressures.
the shells. The soft edge of the diaphragm forms a pad or cushion for making a tight joint between the flanges of the shells A A. In the pumps shown in Figs. 2, 3, and 6 one of the shells A has a flange, d, which extends'over and incloses the edge of the diaphragm, thus concealing it.
The center of the diaphragm is pierced with a hole which admits through it the piston-rod T, as shownin Figs. 2 and 5, or with a larger hole 'in which is set the seat of one of the valves, as shown in Figs. 6 and 7. In Fig. 2
the piston-rod has a flange, e, fixed on it, which comes against one side of the diaphragm, and against the other side is placed a washer, f,
which is forced toward the flange e by a nut,g,
thus clamping the diaphragm firmly on the piston-rod. As the piston-rod is reciprocated its center and moved from one side of the the 'chamberon either side of it, as is well understood with reference to diaphragm- Pumps of this character have the advantage of absence of friction, and since there is no movement of a;piston in a cylinder there is no necessity of the pump-chamber being turned or smoothed interiorly. For the pumping of acids the surface of this chamber may be enameled. The diaphragm shown in Fig. 'difiersfrom that already described in having a flat edgethat is, the ring or cushion bis omitted. Fig. 5 shows a pump constructed with this diaphragm, which is clamped at its-edges between the two shells A A by means of bolts or screws, which pass throughthe flanges of the shells, and also through the edge of the diaphragm. It is best when using this kind of diaphragmto make the shells A A with an easily-rounded curve for the outervmoving part of the diapiston-rod T is here fastened to the diaphragm In Figs. 6 and 7 the diaphragm is shown with one of the valves V carried in its center.
The seat of this valve is formed at one end of a short tubeflr, which is placed in the hole a ring, m, forming part of an open spider, n, to which the end of the-piston-rodiT is screwed. On the other side is placed a washer, c','and against it is screwed a' ring, j, forming part of a spider, Z, and to this spider ,is fixed a guideforming a continuation of the piston- The mechanical details of the several pumps shown will be readily understood from the Pumps constructed according to my invention may be worked by hand or power, maybe arranged at any depth; and, by virtue of my construction of the diaphragm, may'work un- My pumps may be applied either as suction or force pumps, and for the pumping of corrosive chemicals and gritty water, for the forcing of air, and for many different purposes.
I am aware that diaphragms of rigid mate-- rialsuch as metal, celluloid, &c.--have been made with parallel concentric annular crimps or corrugations, and that such diaphragms have-had their edges annularly crimped or corrugated for engagement with the shells between which theyare clamped.
I am also aware that a diaphragm-of soft rubber has had its edge very slightly thickened to facilitate its being clamped between the flanges of the shells; but I am not aware that a rubber diaphragm has been made with an; nularly-thickeued ribs, so that its concentric portions are alternately thick or rigid and thin or flexible; nor am I aware that a rubber diaphragm has been formed with a ribbed or thickened margin, internally stiflened and forming an integral cushion for engagement with coinciding grooves in the flanges of the shells between which it is clamped.
I claim as my inventiou- I I 1. A pump diaphragm of india rubber, adapted to be clamped at its center and edges,
and constructed in its concentric intervening portion of alternate annular stiffening-ribs and flexible portions between said r'rbs,.sub s tantially as described.
2. A pump-diaphragm of india-rubber, constructed with a concentric stiffening-ring embedded in it, substantially as'described.
3. A pump-diaphragm of india-rubber, constructed with a middle layer of rubber rev enforced by two layers of tough cloth or similar textile fabric on its oppositesides, with a stiflening-ring embedded in said middle layer, and the rubber and cloth ribbed around said substantially as described.
4. A pump diaphragm of india rubber, constructed with an annularly-ribbed and internally-stifieued margin, forming a thickened cushion for engagement between the fasteningflanges, substantially as described.
5. A pump -diaphragm of india rubber, constructed with a ring embedded in it close to its margin and the rubber ribbed or thickened around said ring, substantially as described.v
ring, whereby the same is cushioned therein,"
;6. A pump-diaphragm of resilient indiarubber, constructed of approximately .conical form and with concentric annular thickeningribs and intervening portionsof greater flexibility, substantially as described, whereby when the middle of the diaphragm is forced to one'si'de it tends 'to return to the other.
-In witness whereof I' have hereunto signed my namerin the presence of .two subscribing witnesses.
'Witnesses RAMON MENENDEZ, AMAND- BITTER. 1
- s'IMEoN GIL.
Publications (1)
Publication Number | Publication Date |
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US356997A true US356997A (en) | 1887-02-01 |
Family
ID=2426041
Family Applications (1)
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---|---|---|---|
US356997D Expired - Lifetime US356997A (en) | Simeon gil |
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US (1) | US356997A (en) |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2578730A (en) * | 1945-07-25 | 1951-12-18 | Ohmer Corp | Diaphragm |
US2608211A (en) * | 1949-06-08 | 1952-08-26 | Powers Regulator Co | Valve motor |
US2640499A (en) * | 1950-03-22 | 1953-06-02 | Pacific Car & Foundry Co | Flexible diaphragm for fluid clutches |
US2641283A (en) * | 1947-10-13 | 1953-06-09 | Junius W Houston | Pumping device |
US2658526A (en) * | 1948-04-23 | 1953-11-10 | Chefford Master Mfg Co Inc | Diaphragm for pumps |
US2729109A (en) * | 1951-12-06 | 1956-01-03 | Sloan Valve Co | Flush valve operating handle units |
US2730131A (en) * | 1953-01-02 | 1956-01-10 | Crane Packing Co | Flexible diaphragm for fuel pumps and the like and method of forming the same |
US2751850A (en) * | 1949-04-25 | 1956-06-26 | Tokheim Corp | Diaphragm structure and device embodying it |
US2774380A (en) * | 1952-04-28 | 1956-12-18 | Tokheim Corp | Diaphragm annulus with a spring therein |
US2900165A (en) * | 1955-03-30 | 1959-08-18 | Parker Hannifin Corp | Gate valve and seal |
US2901000A (en) * | 1954-07-22 | 1959-08-25 | Tokheim Corp | Valve assembly |
US2959131A (en) * | 1957-05-13 | 1960-11-08 | Plenty And Son Ltd | Pumps |
US3094076A (en) * | 1961-08-09 | 1963-06-18 | Superior Tool And Grinding Co | Pump assembly |
US3188970A (en) * | 1962-09-11 | 1965-06-15 | Gen Motors Corp | Pumping diaphragm and pump assembly |
US3204568A (en) * | 1961-11-16 | 1965-09-07 | Nat Res Dev | Diaphragms |
US3385477A (en) * | 1966-11-25 | 1968-05-28 | Thiokol Chemical Corp | Diaphragm for expelling liquids from annular tank |
US3589190A (en) * | 1968-06-21 | 1971-06-29 | William C Jones | Respiration testing apparatus |
US3590693A (en) * | 1968-07-17 | 1971-07-06 | Jarmuefejlesztesi Intezet | Brake chamber device for airbrake installations |
US5027860A (en) * | 1990-10-25 | 1991-07-02 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Dual diaphragm tank with telltale drain |
US5176178A (en) * | 1991-02-20 | 1993-01-05 | Aos Holding Company | Accumulator with randomly uniplanar bladder collapse |
US20100077852A1 (en) * | 2008-09-30 | 2010-04-01 | M&Fc Holding, Llc | Gas metering diaphragm |
US20150050166A1 (en) * | 2006-04-14 | 2015-02-19 | Deka Products Limited Partnership | Fluid pumping systems, devices and methods |
US9951768B2 (en) | 2007-02-27 | 2018-04-24 | Deka Products Limited Partnership | Cassette system integrated apparatus |
US10047863B1 (en) * | 2017-05-24 | 2018-08-14 | Larry Baxter | Diaphragms with encapsulated springs |
US10537671B2 (en) | 2006-04-14 | 2020-01-21 | Deka Products Limited Partnership | Automated control mechanisms in a hemodialysis apparatus |
US10578092B2 (en) | 2016-03-18 | 2020-03-03 | Deka Products Limited Partnership | Pressure control gaskets for operating pump cassette membranes |
US10697913B2 (en) | 2007-02-27 | 2020-06-30 | Deka Products Limited Partnership | Pump and mixing cassette apparatus systems, devices and methods |
US11110212B2 (en) | 2007-02-27 | 2021-09-07 | Deka Products Limited Partnership | Blood circuit assembly for a hemodialysis system |
US11154646B2 (en) | 2007-02-27 | 2021-10-26 | Deka Products Limited Partnership | Hemodialysis systems and methods |
US11371498B2 (en) | 2018-03-30 | 2022-06-28 | Deka Products Limited Partnership | Liquid pumping cassettes and associated pressure distribution manifold and related methods |
US11478577B2 (en) | 2008-01-23 | 2022-10-25 | Deka Products Limited Partnership | Pump cassette and methods for use in medical treatment system using a plurality of fluid lines |
US11633526B2 (en) | 2007-02-27 | 2023-04-25 | Deka Products Limited Partnership | Cassette system integrated apparatus |
US11779689B2 (en) | 2011-05-24 | 2023-10-10 | Deka Products Limited Partnership | Blood treatment systems and methods |
US11890403B2 (en) | 2011-05-24 | 2024-02-06 | Deka Products Limited Partnership | Hemodialysis system |
-
0
- US US356997D patent/US356997A/en not_active Expired - Lifetime
Cited By (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2578730A (en) * | 1945-07-25 | 1951-12-18 | Ohmer Corp | Diaphragm |
US2641283A (en) * | 1947-10-13 | 1953-06-09 | Junius W Houston | Pumping device |
US2658526A (en) * | 1948-04-23 | 1953-11-10 | Chefford Master Mfg Co Inc | Diaphragm for pumps |
US2751850A (en) * | 1949-04-25 | 1956-06-26 | Tokheim Corp | Diaphragm structure and device embodying it |
US2608211A (en) * | 1949-06-08 | 1952-08-26 | Powers Regulator Co | Valve motor |
US2640499A (en) * | 1950-03-22 | 1953-06-02 | Pacific Car & Foundry Co | Flexible diaphragm for fluid clutches |
US2729109A (en) * | 1951-12-06 | 1956-01-03 | Sloan Valve Co | Flush valve operating handle units |
US2774380A (en) * | 1952-04-28 | 1956-12-18 | Tokheim Corp | Diaphragm annulus with a spring therein |
US2730131A (en) * | 1953-01-02 | 1956-01-10 | Crane Packing Co | Flexible diaphragm for fuel pumps and the like and method of forming the same |
US2901000A (en) * | 1954-07-22 | 1959-08-25 | Tokheim Corp | Valve assembly |
US2900165A (en) * | 1955-03-30 | 1959-08-18 | Parker Hannifin Corp | Gate valve and seal |
US2959131A (en) * | 1957-05-13 | 1960-11-08 | Plenty And Son Ltd | Pumps |
US3094076A (en) * | 1961-08-09 | 1963-06-18 | Superior Tool And Grinding Co | Pump assembly |
US3204568A (en) * | 1961-11-16 | 1965-09-07 | Nat Res Dev | Diaphragms |
US3188970A (en) * | 1962-09-11 | 1965-06-15 | Gen Motors Corp | Pumping diaphragm and pump assembly |
US3385477A (en) * | 1966-11-25 | 1968-05-28 | Thiokol Chemical Corp | Diaphragm for expelling liquids from annular tank |
US3589190A (en) * | 1968-06-21 | 1971-06-29 | William C Jones | Respiration testing apparatus |
US3590693A (en) * | 1968-07-17 | 1971-07-06 | Jarmuefejlesztesi Intezet | Brake chamber device for airbrake installations |
US5027860A (en) * | 1990-10-25 | 1991-07-02 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Dual diaphragm tank with telltale drain |
US5176178A (en) * | 1991-02-20 | 1993-01-05 | Aos Holding Company | Accumulator with randomly uniplanar bladder collapse |
US20150050166A1 (en) * | 2006-04-14 | 2015-02-19 | Deka Products Limited Partnership | Fluid pumping systems, devices and methods |
US10871157B2 (en) | 2006-04-14 | 2020-12-22 | Deka Products Limited Partnership | Fluid pumping systems, devices and methods |
US11828279B2 (en) | 2006-04-14 | 2023-11-28 | Deka Products Limited Partnership | System for monitoring and controlling fluid flow in a hemodialysis apparatus |
US11754064B2 (en) | 2006-04-14 | 2023-09-12 | Deka Products Limited Partnership | Fluid pumping systems, devices and methods |
US11419965B2 (en) | 2006-04-14 | 2022-08-23 | Deka Products Limited Partnership | Pumping cassette |
US10302075B2 (en) * | 2006-04-14 | 2019-05-28 | Deka Products Limited Partnership | Fluid pumping systems, devices and methods |
US10537671B2 (en) | 2006-04-14 | 2020-01-21 | Deka Products Limited Partnership | Automated control mechanisms in a hemodialysis apparatus |
US11110212B2 (en) | 2007-02-27 | 2021-09-07 | Deka Products Limited Partnership | Blood circuit assembly for a hemodialysis system |
US10697913B2 (en) | 2007-02-27 | 2020-06-30 | Deka Products Limited Partnership | Pump and mixing cassette apparatus systems, devices and methods |
US10851769B2 (en) | 2007-02-27 | 2020-12-01 | Deka Products Limited Partnership | Pumping cassette |
US11793915B2 (en) | 2007-02-27 | 2023-10-24 | Deka Products Limited Partnership | Hemodialysis systems and methods |
US11779691B2 (en) | 2007-02-27 | 2023-10-10 | Deka Products Limited Partnership | Pumping cassette |
US11154646B2 (en) | 2007-02-27 | 2021-10-26 | Deka Products Limited Partnership | Hemodialysis systems and methods |
US9951768B2 (en) | 2007-02-27 | 2018-04-24 | Deka Products Limited Partnership | Cassette system integrated apparatus |
US11633526B2 (en) | 2007-02-27 | 2023-04-25 | Deka Products Limited Partnership | Cassette system integrated apparatus |
US11511024B2 (en) | 2008-01-23 | 2022-11-29 | Deka Products Limited Partnership | Pump cassette and methods for use in medical treatment system using a plurality of fluid lines |
US11478577B2 (en) | 2008-01-23 | 2022-10-25 | Deka Products Limited Partnership | Pump cassette and methods for use in medical treatment system using a plurality of fluid lines |
US8104397B2 (en) | 2008-09-30 | 2012-01-31 | M&Fc Holding, Llc | Gas metering diaphragm |
US20100077852A1 (en) * | 2008-09-30 | 2010-04-01 | M&Fc Holding, Llc | Gas metering diaphragm |
US11779689B2 (en) | 2011-05-24 | 2023-10-10 | Deka Products Limited Partnership | Blood treatment systems and methods |
US11890403B2 (en) | 2011-05-24 | 2024-02-06 | Deka Products Limited Partnership | Hemodialysis system |
US10578092B2 (en) | 2016-03-18 | 2020-03-03 | Deka Products Limited Partnership | Pressure control gaskets for operating pump cassette membranes |
US10047863B1 (en) * | 2017-05-24 | 2018-08-14 | Larry Baxter | Diaphragms with encapsulated springs |
US11371498B2 (en) | 2018-03-30 | 2022-06-28 | Deka Products Limited Partnership | Liquid pumping cassettes and associated pressure distribution manifold and related methods |
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