US2383193A - Diaphragm pump - Google Patents

Diaphragm pump Download PDF

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Publication number
US2383193A
US2383193A US508528A US50852843A US2383193A US 2383193 A US2383193 A US 2383193A US 508528 A US508528 A US 508528A US 50852843 A US50852843 A US 50852843A US 2383193 A US2383193 A US 2383193A
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United States
Prior art keywords
diaphragm
inlet
pump
chamber
outlet
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Expired - Lifetime
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US508528A
Inventor
Elmer H Herbert
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Oliver United Felters Inc
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Priority to US508528A priority Critical patent/US2383193A/en
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Application status is Expired - Lifetime legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/02Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06Pumps having fluid drive
    • F04B43/073Pumps having fluid drive the actuating fluid being controlled by at least one valve
    • F04B43/0733Pumps having fluid drive the actuating fluid being controlled by at least one valve with fluid-actuated pump inlet or outlet valves; with two or more pumping chambers in series
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/08Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by electric or magnetic means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00Piston machines or pumps characterised by having positively-driven valving
    • F04B7/02Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated
    • F04B7/0266Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the inlet and discharge means being separate members
    • F04B7/0275Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the inlet and discharge means being separate members and being deformable, e.g. membranes

Description

`Aug.2l, 1945. Y E. H. HERBERT 2,333,193

DIAPHRAGM PUMP Filed Nv. 1. 1943 `/7 /7 27l 36 23 3/ 3 56 35 F l 6 z 29 f/3 l /Z/ 29 54 6 22 3732 A l (7 l 25 3.2.37

/6 j T 253 2/ 4Z- A I9 V /9 t ,f .1J 24- f 25 \\`LI Irl l ,.4 EBEE 4 l 1l 1L V ,3a v INVENToR 4/ ELA/IEE H. HERBERT if; 7% M ATTORNEY vPatented Aug; 21, 1945 UNITED .STATI-:s PATENT' `or-'Flclz Elmer H. Herbert, Oakland, Calif., assignor to AOliver United Felters Incorporated, Oakland,

Calif., a corporation of Nevada Application November 1, 1943, Serial No. 508,528

4 claims. (Cl. v10a-152) This invention relates to a diaphragm pump, and has for one of its objects the provision in a pump of this type of a pair f solenoid-operated diaphragm valves for controlling the inlet and outlet of the pump chamber.

'I'he invention possesses other advantageous features. some of which with the foregoingwill be set forth at length in the following description where that form of the invention which has been selected for illustration in the drawing accompanying and forming a part'of the present specification is outlined in full. In said drawing, -one form of the invention is shown, but it is to be understood that it is not limited to such form, since the inventionas set forth in the claims may be embodied in a plurality ,of forms.

The single figure of the drawing is a mid-vertical section taken through a pump embodying the objects of my invention, and in whichthe solenoids, the clock, and their circuits 'are diagrammatically illustrated.

'I'he pump as shown in the drawing comprises a main chamber generally designated by the reference numeral I, form'ed by two opposed dished castings 2 and 3 bolted together along their respective peripheral flanges 4 and 5. Clamped between and sealed to the flanges 4 and 5 is a flexible working diaphragm I* preferably made of lrubber or other comparable material and arranged to reciprocate between the two opposed 'inner faces of the main chamber I. -Formed integral with the casting 3 and extending upwardly therefrom is a valve casing 6 provided with a transverse cylindrical conduit 1, communicating with the main chamber I through a central passageway 8. Extending upwardly from the ends of the conduit 'I is slurry inlet 9 and a slurry outlet I I arranged for communication respectively with the open ends of the conduit-1 through ciated with the passageway I2 may be referred to as an inlet diaphragm'. and the opposed diaphragm I-associated with the, outlet dia-- phragm as yan outlet diaphragm.V In effect,

these diaphragms constitute gates and therefore may be further qualified as "diaphragm gates.

Communication between the chamber defined Cil by the working diaphragm I and the casting 2 anda suitable source of fluid pressure is established by the conduit I9, a cross 2 I, a conduit 22, a solenoidvalve 23, and a conduit 24. The'diaphragm valve I4 is connected with the same source of fluidpressure by a conduit the solenoid-valve 23 and the conduit 24. Communication 4between the diaphragm Valve I5 and -source of fluid pressure is established by a conard construction and comprise a central chamber between its associated diaphragm valve :and the source of fluid pressure is cut off, and communication between the outer chamber of the dia` phragm valve and atmosphere is established through the central chamber 29, the lateral chamber 34, and a vent 3l formed therein.

'I'he solenoids 36 are connected through electric circuits 38 and a time switch or program clock 39 with a source of current 4I. By means of thev clock 39, the two solenoids may be made to operate successively in any predetermined cycle alternatively to positively open and close the inlet and outlet diaphragm valves I4 and I5, and to periodically operate the working diaphragm -I of the main pump chamber.

Connected to the cross 2 Il through a valve 42 is a pressure gauge 43, which may be used to determine the pressure under which the valve isbeing operated.

Shunted acrossthe circuit 38 is an electric counter. for continuously recording the number of strokes made by the pump.

The cycle of operation of a pump made in accordance with the above description is as follows:

As shown in the drawing,. the working diaphragm Ia has completed its exhaust stroke, the inlet diaphragm valve I4 is closed, the outlet diaphragm valve I5 is open, and the pump or Aslurry previously filling the main pump chamber I has been expelled outwardlythrough the passageways 8 and I3, and the slurry outlet I I. The program clock 39k then reverses the respective positions of solenoid-valves 23 and 21, thereby permitting the escape of air or other fluid 'working medium from the inlet diaphragm valve I4, and

vfrom the under side of -the pump diaphragm I throughthe conduits 25 and 22, through the central chamber 29 of the solenoid-valve 23, through the lower lateral chamber 32, and through the vent 31. Slurry then, under the action of gravity or other force, enters the inlet 9, traveling through y I closed, thereby preventing the escape of air through the vent 31. The discharge stroke of the pump is then eiected by reversing the positions of the solenoid-valves to the position shown in the drawingv and already described.

Although in the pump as above described, gravity alone has been relied upon for filling the pump, vacuum can be used for this purpose by connecting the vent 31 to a source of vacuum on vthe intake stroke of the pump.

By resorting to positively actuated diaphragm valves for controlling the cycle of operation of the pump, the pump can be used with a higher degree of accuracy as a metering pump than can pumps utilizing conventional check valves which depend on the direction of travel of the pulp or slurry within .the pump for their action.

It should be particularly noted that the solenoid-'valve 23 controls the operation of the Working diaphragm I as well as the operation of the inlet diaphragm valve I4. However, a separate solenoid-valve can be used to control the working diaphragm Ia, thereby permitting the separate timing of the valve 23 and insuring the closing of the inlet valve I4 before the working diaphragm Ia begins to operate.

lI claim:

1. A pump comprising: a slurry chamber; a working diaphragm sealed across said chamber and arranged for reciprocation therein; slurry inlet and outlet conduits communicating with said chamber; inlet and outlet diaphragm gates respectively associated with said inlet and `outlet conduits; and solenoid-operated time-controlled fluid means for actuating said working diaphragm and said inlet and outlet diaphragm gates in a cycle wherein when said working diaphragm is making its discharge stroke, 'said inlet diaphragm gate is in its closed position and said outlet diaphragm gate is in' its open position, and wherein when said working diaphragm is making its intake stroke, the positions of said gates are reversed.

2. A pump comprising: a slurry chamber; a

working diaphragm sealed across said chamber and arranged for reciprocation therein; slurry inlet and outlet conduits communicating with said chamber; inlet and outlet diaphgram gates respectively associated with said inlet and outlet conduits; .solenoid-controlled fluid meansfor simultaneously actuating said working diaphragm and inlet diaphragm gate; and independent solenoid-controlled fluid means for actuating said outlet diaphragm gate, the operation of said gates 4and said working diaphragm being so correlated thatwhen said workingv diaphragm is effecting its discharge stroke, said outlet gate is in its open position and said inlet gate is in its closed position, and when said working diaphragm is effecting its intake stroke, said inlet gate is in its open position and said outlet gate is in its closed position.

3. A pump comprising: a pump body divided by a working diaphragm into a slurry chamber and a working chamber; inlet and outlet conduits communicating with said slurry chamber; inlet and outlet diaphragm gate valves associated respectively with said inlet and outlet conduits; a`

iirst conduit establishing communication between said working chamber and said inlet diaphragm gate valve; a uid pressure line communicating with said rst conduit; 'a second conduit establishing communication between said outlet diaphragm gate valve and said fluid pressure line; a rst valve interposed in said fluid pressure line at a. point between its junctions with said first and second conduits; a second valve interposed intermediate the ends of` said second conduit; and time-controlled means for alternately opening and closing said rst and second valves in opposed sequence. s

4. A pump comprising: a pump body divided by a working diaphragm into a slurry chamber and working chamber; inlet and outlet conduits communicating with said slurry chamber; inlet and `outlet diaphragm gate valves associated respectively with said inlet and outlet conduits; a first conduit `establishing communication between said working chamber and said inlet diaphragm gate valve; a uid pressure line communicating with said first conduit, a second conduit establishing communication between said outlet diaphragm lgate valve and said fluid pressure line; a first time-controlled means for alternately energizing v said solenoids.

ELMER H. HERBERT.

CERTIEICATE 0F QORRECTION. Patent No. 2,5855195; VAugussz, 19h5, ELMER H. HERBERT.

It is hereby certified that the name of the assignee in the above numbered 'patent was erroneeusly described and specified as "Oliver nited Feiters Incorporated whereas said name should have been described and specifiedV asv --Oliver United Filters Ine9rporated5 as shown by the record of assignments in this office; and that the said Letters Patent should be read with this oorrection therein that.the same may conform to the record of the case in the Patent Office; i f i Signed and sealed this 5th day ef February, A. D. 19l|.6.A

Leslie Frazer (Seal) First Assistant Commssiner of Patents.

US508528A 1943-11-01 1943-11-01 Diaphragm pump Expired - Lifetime US2383193A (en)

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Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2638849A (en) * 1947-01-29 1953-05-19 Motorola Inc Pump
US2732807A (en) * 1956-01-31 Diaphragm pump
US2780177A (en) * 1952-09-29 1957-02-05 Walter J Hoenecke Pneumatically operated diaphragm pump
DE1013522B (en) * 1953-06-12 1957-08-08 Ici Ltd designed as a diaphragm pump metering pump for promotion of highly explosive liquids
DE1020215B (en) * 1955-05-09 1957-11-28 Hans Schwarzmann diaphragm spring
US2821930A (en) * 1953-06-12 1958-02-04 Ici Ltd Diaphragm operated delivery pumps
US3007416A (en) * 1958-08-13 1961-11-07 Gen Dynamics Corp Pump for cellular fluid such as blood and the like
US3741687A (en) * 1970-04-15 1973-06-26 E Nystroem Jet-actuated membrane pump
US3814548A (en) * 1971-08-05 1974-06-04 Rupp Co Warren Diaphragm pump apparatus
US3816034A (en) * 1971-03-12 1974-06-11 Dorr Oliver Inc Diaphragm pumps and actuating system therefor
US3930999A (en) * 1973-12-12 1976-01-06 Dorr-Oliver Incorporated Pulse transfer thickening
US4047844A (en) * 1975-12-08 1977-09-13 Searle Cardio-Pulmonary Systems Inc. Blood pumping system
WO1981003206A1 (en) * 1980-05-09 1981-11-12 T Gilbertson Oil well pump driving unit
US4583920A (en) * 1983-12-28 1986-04-22 M&T Chemicals Inc. Positive displacement diaphragm pumps employing displacer valves
US4763893A (en) * 1985-02-01 1988-08-16 Barthlome Donald E Pumping unit for therapeutic hand exerciser
US5011376A (en) * 1990-04-05 1991-04-30 Henriksson Kurt K G Valve control system for an air displacement type pump
EP0513843A1 (en) * 1991-05-17 1992-11-19 Millipore Corporation Integrated system for filtering and dispensing fluid
US5419689A (en) * 1992-11-13 1995-05-30 The Boc Group Plc Vacuum pump having oil-actuated inlet valve
US5499909A (en) * 1993-11-17 1996-03-19 Aisin Seiki Kabushiki Kaisha Of Kariya Pneumatically driven micro-pump
USRE38239E1 (en) 1993-02-16 2003-08-26 Wilden Pump & Engineering Co. Air driven diaphragm pump
US20060005954A1 (en) * 2004-07-12 2006-01-12 Orr Troy J Heat exchanger apparatus for a recirculation loop and related methods and systems
US20070077156A1 (en) * 2005-07-13 2007-04-05 Orr Troy J Double diaphragm pump and related methods
US20080077068A1 (en) * 2005-07-13 2008-03-27 Purity Solutions Llc Diaphragm pump and related methods
US20090137940A1 (en) * 2007-11-26 2009-05-28 Purity Solutions Llc Diaphragm pump and related systems and methods
US20110015610A1 (en) * 2009-07-15 2011-01-20 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods
WO2011018394A1 (en) * 2009-08-11 2011-02-17 Prominent Dosiertechnik Gmbh Diaphragm machine
CN103244394A (en) * 2013-05-10 2013-08-14 北京京城压缩机有限公司 Integrated cylinder block component of single cylinder cover diaphragm type compressor
US8721883B2 (en) 2002-06-04 2014-05-13 Fresenius Medical Care Deutschland Gmbh Medical fluid cassettes and related systems
US8784359B2 (en) 2005-02-28 2014-07-22 Fresenius Medical Care Holdings, Inc. Cassette system for peritoneal dialysis machine
US8986254B2 (en) 2009-03-20 2015-03-24 Fresenius Medical Care Holdings, Inc. Medical fluid pump systems and related components and methods
US9011114B2 (en) 2011-03-09 2015-04-21 Fresenius Medical Care Holdings, Inc. Medical fluid delivery sets and related systems and methods
US9180240B2 (en) 2011-04-21 2015-11-10 Fresenius Medical Care Holdings, Inc. Medical fluid pumping systems and related devices and methods
US20160305424A1 (en) * 2013-10-30 2016-10-20 Dosatron International Diaphragm pump and valve device for such a pump
US9500188B2 (en) 2012-06-11 2016-11-22 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods
US9561323B2 (en) 2013-03-14 2017-02-07 Fresenius Medical Care Holdings, Inc. Medical fluid cassette leak detection methods and devices
US9610392B2 (en) 2012-06-08 2017-04-04 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods
US9694125B2 (en) 2010-12-20 2017-07-04 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods
CN107829921A (en) * 2017-11-13 2018-03-23 中鼎恒盛气体设备(芜湖)有限公司 Diaphragm compressor using asymmetric tee joint
WO2018115028A1 (en) * 2016-12-21 2018-06-28 Fresenius Medical Care Deutschland Gmbh Diaphragm pump device and diaphragm pump having a diaphragm pump device and an actuation device
US10117985B2 (en) 2013-08-21 2018-11-06 Fresenius Medical Care Holdings, Inc. Determining a volume of medical fluid pumped into or out of a medical fluid cassette

Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732807A (en) * 1956-01-31 Diaphragm pump
US2638849A (en) * 1947-01-29 1953-05-19 Motorola Inc Pump
US2780177A (en) * 1952-09-29 1957-02-05 Walter J Hoenecke Pneumatically operated diaphragm pump
DE1013522B (en) * 1953-06-12 1957-08-08 Ici Ltd designed as a diaphragm pump metering pump for promotion of highly explosive liquids
US2821930A (en) * 1953-06-12 1958-02-04 Ici Ltd Diaphragm operated delivery pumps
DE1020215B (en) * 1955-05-09 1957-11-28 Hans Schwarzmann diaphragm spring
US3007416A (en) * 1958-08-13 1961-11-07 Gen Dynamics Corp Pump for cellular fluid such as blood and the like
US3741687A (en) * 1970-04-15 1973-06-26 E Nystroem Jet-actuated membrane pump
US3816034A (en) * 1971-03-12 1974-06-11 Dorr Oliver Inc Diaphragm pumps and actuating system therefor
US3814548A (en) * 1971-08-05 1974-06-04 Rupp Co Warren Diaphragm pump apparatus
US3930999A (en) * 1973-12-12 1976-01-06 Dorr-Oliver Incorporated Pulse transfer thickening
US4047844A (en) * 1975-12-08 1977-09-13 Searle Cardio-Pulmonary Systems Inc. Blood pumping system
WO1981003206A1 (en) * 1980-05-09 1981-11-12 T Gilbertson Oil well pump driving unit
US4583920A (en) * 1983-12-28 1986-04-22 M&T Chemicals Inc. Positive displacement diaphragm pumps employing displacer valves
US4763893A (en) * 1985-02-01 1988-08-16 Barthlome Donald E Pumping unit for therapeutic hand exerciser
US5011376A (en) * 1990-04-05 1991-04-30 Henriksson Kurt K G Valve control system for an air displacement type pump
EP0513843A1 (en) * 1991-05-17 1992-11-19 Millipore Corporation Integrated system for filtering and dispensing fluid
US5419689A (en) * 1992-11-13 1995-05-30 The Boc Group Plc Vacuum pump having oil-actuated inlet valve
USRE38239E1 (en) 1993-02-16 2003-08-26 Wilden Pump & Engineering Co. Air driven diaphragm pump
US5499909A (en) * 1993-11-17 1996-03-19 Aisin Seiki Kabushiki Kaisha Of Kariya Pneumatically driven micro-pump
US9827359B2 (en) 2002-06-04 2017-11-28 Fresenius Medical Care Deutschland Gmbh Dialysis systems and related methods
US8926835B2 (en) 2002-06-04 2015-01-06 Fresenius Medical Care Deustschland Gmbh Dialysis systems and related methods
US9101709B2 (en) 2002-06-04 2015-08-11 Fresenius Medical Care Deutschland Gmbh Dialysis fluid cassettes and related systems and methods
US8721883B2 (en) 2002-06-04 2014-05-13 Fresenius Medical Care Deutschland Gmbh Medical fluid cassettes and related systems
US7458222B2 (en) 2004-07-12 2008-12-02 Purity Solutions Llc Heat exchanger apparatus for a recirculation loop and related methods and systems
US20060005954A1 (en) * 2004-07-12 2006-01-12 Orr Troy J Heat exchanger apparatus for a recirculation loop and related methods and systems
US8784359B2 (en) 2005-02-28 2014-07-22 Fresenius Medical Care Holdings, Inc. Cassette system for peritoneal dialysis machine
US7717682B2 (en) 2005-07-13 2010-05-18 Purity Solutions Llc Double diaphragm pump and related methods
US20080077068A1 (en) * 2005-07-13 2008-03-27 Purity Solutions Llc Diaphragm pump and related methods
US8932032B2 (en) 2005-07-13 2015-01-13 Fresenius Medical Care Holdings, Inc. Diaphragm pump and pumping systems
US8197231B2 (en) 2005-07-13 2012-06-12 Purity Solutions Llc Diaphragm pump and related methods
US20070077156A1 (en) * 2005-07-13 2007-04-05 Orr Troy J Double diaphragm pump and related methods
US8038640B2 (en) 2007-11-26 2011-10-18 Purity Solutions Llc Diaphragm pump and related systems and methods
US20090137940A1 (en) * 2007-11-26 2009-05-28 Purity Solutions Llc Diaphragm pump and related systems and methods
US8986254B2 (en) 2009-03-20 2015-03-24 Fresenius Medical Care Holdings, Inc. Medical fluid pump systems and related components and methods
US20110015610A1 (en) * 2009-07-15 2011-01-20 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods
US9421314B2 (en) 2009-07-15 2016-08-23 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods
US9062670B2 (en) 2009-08-11 2015-06-23 Prominent Gmbh Diaphragm machine with a plurality of pump chambers
WO2011018394A1 (en) * 2009-08-11 2011-02-17 Prominent Dosiertechnik Gmbh Diaphragm machine
CN102483055A (en) * 2009-08-11 2012-05-30 卓越剂量技术有限公司 Diaphragm machine
US9694125B2 (en) 2010-12-20 2017-07-04 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods
US9624915B2 (en) 2011-03-09 2017-04-18 Fresenius Medical Care Holdings, Inc. Medical fluid delivery sets and related systems and methods
US9011114B2 (en) 2011-03-09 2015-04-21 Fresenius Medical Care Holdings, Inc. Medical fluid delivery sets and related systems and methods
US10143791B2 (en) 2011-04-21 2018-12-04 Fresenius Medical Care Holdings, Inc. Medical fluid pumping systems and related devices and methods
US9180240B2 (en) 2011-04-21 2015-11-10 Fresenius Medical Care Holdings, Inc. Medical fluid pumping systems and related devices and methods
US9610392B2 (en) 2012-06-08 2017-04-04 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods
US9500188B2 (en) 2012-06-11 2016-11-22 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods
US9561323B2 (en) 2013-03-14 2017-02-07 Fresenius Medical Care Holdings, Inc. Medical fluid cassette leak detection methods and devices
CN103244394A (en) * 2013-05-10 2013-08-14 北京京城压缩机有限公司 Integrated cylinder block component of single cylinder cover diaphragm type compressor
US10117985B2 (en) 2013-08-21 2018-11-06 Fresenius Medical Care Holdings, Inc. Determining a volume of medical fluid pumped into or out of a medical fluid cassette
US20160305424A1 (en) * 2013-10-30 2016-10-20 Dosatron International Diaphragm pump and valve device for such a pump
US10247180B2 (en) * 2013-10-30 2019-04-02 Dosatron International Pump having a cap retaining a diaphragm in a receptacle
WO2018115028A1 (en) * 2016-12-21 2018-06-28 Fresenius Medical Care Deutschland Gmbh Diaphragm pump device and diaphragm pump having a diaphragm pump device and an actuation device
CN107829921A (en) * 2017-11-13 2018-03-23 中鼎恒盛气体设备(芜湖)有限公司 Diaphragm compressor using asymmetric tee joint

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