US3182597A - Proportioning pump - Google Patents

Proportioning pump Download PDF

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Publication number
US3182597A
US3182597A US273102A US27310263A US3182597A US 3182597 A US3182597 A US 3182597A US 273102 A US273102 A US 273102A US 27310263 A US27310263 A US 27310263A US 3182597 A US3182597 A US 3182597A
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United States
Prior art keywords
bellows
chambers
fluid
chamber
pump
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Expired - Lifetime
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US273102A
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English (en)
Inventor
Malizard Max
Pattoret Andre
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Individual
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
    • G21C15/24—Promoting flow of the coolant
    • 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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/02—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows
    • F04B45/022—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows with two or more bellows in parallel
    • 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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/02—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows
    • F04B45/033—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows having fluid drive
    • 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
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/129—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers
    • F04B9/131—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members
    • F04B9/135—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting elastic-fluid motors, each acting in one direction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B1/00—Film strip handling
    • G03B1/56—Threading; Loop forming
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Definitions

  • the present invention relates to an all-metal proportioning pump which can be degassed under a vacuum and which is capable of operating in a Wide range of temperatures.
  • the chief object of the present invention is to permit the suction and delivery of fluids and especially of gases which can either be very clean or highly corrosive by virtue of the fact that all sealing joints have been excluded from the construction of the pump, the assembly of the various components being effected solely by Welding.
  • a further object of the invention is to prevent abrupt overpressures in the pumping circuit While at the same time permitting a particularly high compression rate.
  • the proportioning pump in accordance with the invention comprises a pump body which is separated internally into two parts by a transverse partition which delim-its two chambers of identical volume, each of said chambers containing a metallic bellows, one end of which is welded onto the pump body and the other end of which is rigidly fixed to a movable piston, said movable piston providing within said bellows a volume which is variable as a function of the position of said piston inside the chamber, the movable pistons of each of the two chambers being connected to each other through the transverse partition by means of a rigid unidirectional coupling so as to ensure that the maximum compression of one of the bellows corresponds to the maximum extension of the other, and conversely.
  • variable-volume space which is formed within the bellows between each piston and the pump body inside the corresponding chamber will be designated in the following description by the terms compression chamber or depression chamber.
  • Each of said chambers is in fact put into communication with a pipe which is used alternately for the suction or delivery of the fluid to be pumped, the reciprocating motion of the pistons being effected as a result of the admission or exhaust of a quantity of driving fluid, for example oil, in the interior of the chambers of the pump body within the space formed between this latter and the external wall of the bellows of the com-.
  • a quantity of driving fluid for example oil
  • each bellows is constructed by means of annular members welded to each other at the peripheral extremities thereof.
  • Each, of the two chambers is also connected by means of a suitable pipe.
  • the pump is composed of a body or casing 1 provided with a cent-rial partition wall 2 which delimits two chambers 3 and 4 having substantially equal volumes in the interior of the casing. Said chambers are respectively closed by two head plates 5 and 6 which are maintained in fluid-tight manner against flanges 7 and 8 of the casing 1 by means of screws such as 9.
  • annular ring 10 is welded against the inner face or the closure plate 6.
  • a bellows 11 is first welded at one end onto said ring it) and at the other end onto an annular flange 12.
  • a hollow piston 13 is fitted in said annular flange and is constituted by a plate 14 and a cylindrical cover 15.
  • the plate 14 is pierced with a series of holes 16 and is provided with a central bore 17, the function of which will be explained in detail below.
  • a chamber 18 is formed within the chamber 3 by the combined assembly which consists of the bellows 11 and the movable piston 13.
  • the volume of said chamber 18 is variable as a function of the position of the piston 13, that is to say of the compression of the bellows 11. (In the case of the figure, the volume of the chamber 18 is at its minimum value).
  • a deformable member which is substantially similar to that which has just been described in reference to the chamber 3.
  • the piston 13 is not hollow but is made in one piece.
  • the piston 22 delimits in the interior of the bellows 20 between the inner'face of the closure plate 5 a chamber 23, the volume of which is also variable as a function of the position of the piston, that is to say of the extension or compression of the bellows 2G. 1 (In the example shown in the figure, the chamber 23 has the maximum volume.) v
  • the two pistons 13 and 2 2 are connectedto each other by means of a unidirectional coupling constituted by a rod 24- Which is adapted to slide freely inside a bore 25 formed at right angles to the partition wall 2 between the chambers 3 and 4.
  • the rod'24 is rigidly secured to the piston Hand is provided for this purpose with a threaded end 26 which is screwed into the interior of a tapped hole 27 formed in the axis of the piston.
  • the other end of the rod 24 is adapted to slide freely through a central bore 17 of the plate 14 of the piston 13 and is provided with a head 28 which is intended to rest on that face of the plate 14 which is directed towards the interior of the piston 13 itself.
  • the chambers 3 and 4 are connected respectively to pipes 29 and 30 through which a driving fluid is admitted into said chambers and exhausted therefrom in alternate sequence, thereby controlling the respective positions of the pistons 13 and 22 which delimit the volume provided in the compression chamber 18 and depression chamber 23.
  • the chambers 3 and 4 are each provided with an opening for the purpose of draining said chambers. Said openings are formed through bosses such as the boss 31 which are welded at 32 on the casing 1 and are closed off by means of plugs such as the plug which has been designated by the reference 33, each plug having a threaded stem 34 terminating at one end in a spherical portion 35 which is designed to seal off hermetically the communicating passage 36 formed between the interior of the chambers and the corresponding opening.
  • the closure plates 5 and 6 of the casing 1 are provided respectively with an axially bored central connecting-pipe 37 and 38, the central opening being designated by the reference numeral 39 in the case of the connecting-pipe 37 and by the reference numeral 40 in the case of the connecting-pipe 38.
  • the circuit of the gas to be pumped or delivered is mainly composed of a supply pipe 41 and an outlet pipe 42 which are connected to a piping system by means of which said circuit is put into communication with the chambers 18 and 23 in the manner which will be described in detail below;
  • the admission pipe 41 is welded at right angles to a transverse pipe 43 which terminates at each end in two coupling bushes designated by the reference 44 on the left hand side of the drawing and by the reference 45 on the right.
  • the bush 44 accordingly provides a junction between the pipe 43 and the pipe 46, and similarly, the bush 45 provides a junction between the other end of the pipe 43 and the pipe 47 which is parallel to the pipe 46.
  • the members referred-to above which constitute the gas-admission system are identical to those which constitute the exit system.
  • the pipe 42 is connected to a transverse pipe 48 which is in turn connected to pipes 49 and 50 by means of bushes S1 and 52, each bush being closed off, as can be seen in that portion of the bush 52 which is shown in cross-section in the figure, by means of a closure plate 53 which is welded at 54 on the bush body.
  • the two series of pipes 37, 46 and 49 on the one hand, and 38, 47 and 50 on the other hand, are connected respectively to two flow switching systems 55 and 56 which put into communication with the gas circuit the openings 39 and 40 which provide a connection with the variablevolume depression chamber 23 or the variable-volume compression chamber 18.
  • the flow-switching system 55 consists of a connectingpiece which is hollowed-out internally so as to permit a seating member 58 to be housed therein.
  • the connection between the flow-switching unit 55 and the pipe 46 is direct and can be closed ofl by means of a valve constituted by a single ball 59 which is capable of being applied against the cone-shaped internal wall 57 of the body of the flow-switching unit 55.
  • the pipe 49 which terminates in the interior of the seating 58 can be closed off by means of a ball 60 which is brought to bear against the internally cone-shaped wall 61 of said seating member 58. 7
  • the flow-switching unit 56 which corresponds to the chamber 3 and variable-volume chamber 18 is designed in a manner which is exactly similar to the flow-switching unit 55. Accordingly, balls 62 and 63 which form valves for the purpose of closing or opening the pipes epending on whether said balls are either applied against or freed from the conical seatings 63 and 64 which are formed in the body of the flow-switching unit 56.
  • the chamber 3 is assumed to be filled with oil supplied through the pipe 29 of a cyclic distributor, that is to say an apparatus of conventional type comprising a moving slide-valve combined with calibrated valves, and which delivers either in one or in the other of the chambers 3 and 4 of the proportioning pump, the oil consequently producing the displacement of the pistons 13 and 22.
  • the piston 13 is located in the position which is shown in the figure; the volume of the chamber 18 is at a minimum and the gas initially contained in said chamber is driven out through the pipe 40, thereby causing the ball 62 to be applied against the corresponding seating 64 and to close off the pipe 47, whilst the ball 63 is disengaged from its seating 65 and allows free access to the pipe 50. The gas is thus forced towards the exit pipe 42.
  • the cyclic distributor changes over at this moment, and a certain quantity of oil is delivered into the chamber 4 through the pipe 30.
  • the piston 22 is then driven back towards the closure plate 5 while the piston 13 moves away from the plate 6 over a same distance by virtue of the coupling provided by the rod 24 between the pistons 22 and 13.
  • the volume of the chamber 23 decreases and the gas contained therein is forced through the pipe 39 and then escapes into the pipe 49 since the ball 59 ensures the closure of the pipe 46 as a result of the application of said ball against the seat 57 whereas the ball 60 which is freed from its seating 61 provides at the same time a communication between the pipes 39 and 49.
  • the pump itself can be of very small size, and can thus be located at a substantial distance away from the control circuit and the cyclic distributor, thereby making the use of said pump advantageous, especially in contaminated enclosures for the purpose of pumping radioactive gases.
  • the driving fluid can serve if necessary as a cooling agent or heating agent depending on the conditions of use, in view of the fact that, as has already been stated in the foregoing, the pump is not fitted with any sealing joint of plastic material or the like which is liable to become damaged.
  • a further advantage of the pump lies in the use of a unidirectional coupling for the purpose of connecting the two operating pistons together.
  • the said coupling is in fact permitted to remain free in the direction of extension of the bellows (the rod 24 is capable of sliding freely inside the hollow piston 13 through the bore 17) in such manner that said bellows can accordingly absorb without any danger the abrupt overpressures which are liable to occur on the gas-suction side.
  • a proportioning pump for gaseous fluid comprising a pump body, a transverse partition dividing said body internally into two chambers of substantially identical volume, characterized in that a metallic bellows is disposed in each of said chambers, one end of said bellows being secured to the pump body, a movable piston disposed within and closing the other end of each of said bellows and being rigidly fixed thereto, said movable piston providing within said bellows a volume which is variable as a function of the position of said piston inside the chamber, a rigid unidirectional coupling connecting the movable pistons of the two chambers to each other through the transverse partition; means for connecting the interior of each of said bellows to a gaseous fluid proportioning circuit; and means for connecting each of said chambers to a fluid motor circuit.
  • a proportioning pump in accordance with claim 1 characterized in that a removable head plate closes each chamber, and said one end of the bellows contained in said chambers is secured to said removable head plate of the respective chamber by welding.
  • each flow-switching system includes a part provided with a pair of spaced-apart, oneway check valves permitting gaseous fluid to flow freely in one direction in said circuit, said means connecting said bellows to said gaseous fluid circuit, including a pipe connected to said part intermediate said check valves, thereby closing oif or freeing the passage of gaseous fluid as a function of the movements of extension and compression of the bellows.
  • a fluid pump comprising: a closed pump body; a transverse partition dividing the interior of said body into two chambers; a bellows within each of said chambers fixed at one end thereof to said pump body; a rigid wall closing the other end of each of said bellows; a rigid member extending in sliding engagement through said partition and connected at the opposite ends thereof to said rigid Walls; means for connecting the interior of said bellows to a fluid pumping circuit; and means for connecting each of said chambers to a fluid motor circuit, whereby fluid under pressure directed alternately to said chambers compresses the bellows in the chamber under pressure and pumps the fluid therein into said pumping circuit while at the same time the bellows in the other chamber extends and draws thereinto fluid to be pumped.
  • a proportioning pump for fluid comprising: a closed pump body; a transverse partition dividing the interior said body into two chambers of substantially equal volume; a bellows within each of said chambers fixed at one end thereof to said pump body; a rigid wall closing the other end of each of said bellows, said bellows being of substantially equal volume, a rigid member extending in sliding engagement through said partition and connected at the opposite ends thereof to said rigid walls; means for connecting the interior of said bellows to a fluid pumping circuit; and means for connecting each of said chambers to a fluid motor circuit, whereby fluid under pressure directed alternately to said chambers compresses the bellows in the chamber under pressure and pumps the fluid therein into said pumping circuit while at the same time the bellows in the other chamber extends and draws thereinto fluid to be pumped.
  • a proportioning pump for fluid comprising: a closed pump body; a transverse partition dividing the interior said body into two chambers; a bellows within each of said chambers fixed at one end thereof to said pump body; a piston disposed within the other end of each of said bellows and with the outer end thereof fixed to and closing the other end of the respective bellows, said pistons fitting closely within but spaced from the inner wall of the bellows associated therewith; a rigid member extending in sliding engagement through said partition and connected at the opposite ends thereof to said pistons; means for connecting the interior of said bellows to a fluid pumping circuit; and means for connecting each of said chambers to a fluid motor circuit, whereby fluid under pressure directed alternately to said chambers compresses the bellows in the chamber under pressure and pumps substantially all of the fluid therein into said pumping circuit While at the same time the bellows in the other chamber extends and draws therinto fluid to be pumped.
  • a proportioning pump for fluid comprising: a closed pump body; a transverse partition dividing the interior said body into two chambers; a bellows within each of said chambers fixed at one end thereof to said pump body; a piston disposed within the other end of each of said bellows and with the outer end thereof fixed to and closing the other end of the respective bellows, said pistons fitting closely within but spaced from the inner wall of the bellows associated therewith; a rigid member extending in sliding engagement through said partition, said member being rigidly connected at one end thereof to one of said pistons and unidirectionally connected at the other end thereof to the other of said pistons; means for connecting the interior of said bellows to a fluid means for connecting each of said chambers to a fluid motor circuit, whereby fluid under pressure directed alternately to said chambers compresses the bellows in the chamber under pressure and pumps substantially all of the fluid therein into said pumping circuit while at the same time the bellows in the other chamber extends and draws thereinto fluid to be pumped.
  • a fluid pump comprising: a closed pump body; a transverse partition dividing the interior said body into two chambers; a bellows within each of said chambers fixed at one end thereof to said pump body; a rigid wall closing the other end of each of said bellows; a rigid member extending in sliding engagement through said partition and connected at the opposite ends thereof to said rigid walls; a fluid pumping circuit connected to the interior of said bellows; a pair of spaced-apart, one-way pumping circuit; and

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Fluid Mechanics (AREA)
  • Reciprocating Pumps (AREA)
US273102A 1962-04-21 1963-04-15 Proportioning pump Expired - Lifetime US3182597A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR895323A FR1328970A (fr) 1962-04-21 1962-04-21 Pompe doseuse

Publications (1)

Publication Number Publication Date
US3182597A true US3182597A (en) 1965-05-11

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ID=8777465

Family Applications (1)

Application Number Title Priority Date Filing Date
US273102A Expired - Lifetime US3182597A (en) 1962-04-21 1963-04-15 Proportioning pump

Country Status (7)

Country Link
US (1) US3182597A (en:Method)
CH (1) CH396431A (en:Method)
DE (1) DE1403973A1 (en:Method)
FR (1) FR1328970A (en:Method)
GB (1) GB956847A (en:Method)
LU (1) LU43599A1 (en:Method)
SE (1) SE302888B (en:Method)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4618425A (en) * 1983-05-04 1986-10-21 Production Techniques Limited Pump for pumping corrosive fluids
US5141412A (en) * 1988-10-06 1992-08-25 Meinz Hans W Double acting bellows-type pump
US5195878A (en) * 1991-05-20 1993-03-23 Hytec Flow Systems Air-operated high-temperature corrosive liquid pump
US5308230A (en) * 1993-03-08 1994-05-03 Stainless Steel Products, Inc. Bellows pump
US20040037722A1 (en) * 2002-08-23 2004-02-26 Iwaki Co., Ltd. Dual reciprocating bellows pump
US20050155658A1 (en) * 2004-01-20 2005-07-21 White Andrew J. Hermetically sealed pressure balanced accumulator
RU2260712C1 (ru) * 2004-03-18 2005-09-20 Васин Владимир Анатольевич Сильфонный двухступенчатый безмасляный насос
US20080226466A1 (en) * 2004-06-02 2008-09-18 Jan Eysymontt Hydraulically Driven Multicylinder Pumping Machine
EP2009283A3 (en) * 2007-01-19 2009-04-29 Garniman SA Hydraulically driven machine improvement
US20090123312A1 (en) * 2005-04-13 2009-05-14 Koganei Corporation Chemical liquid supplying apparatus
US20100178184A1 (en) * 2009-01-09 2010-07-15 Simmons Tom M Bellows plungers having one or more helically extending features, pumps including such bellows plungers, and related methods
US20100178182A1 (en) * 2009-01-09 2010-07-15 Simmons Tom M Helical bellows, pump including same and method of bellows fabrication
EP3862565A4 (en) * 2018-10-02 2022-05-18 Obshchestvo S Ogranichennoj Otvetstvennost'yu "Toreg" PUMPING PLANT

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011445A1 (en) * 1978-11-10 1980-05-28 Millars Wellpoint International Limited Pump
FR2459382A1 (fr) * 1979-06-14 1981-01-09 Anvar Dispositif de pompage d'eau mu par energie solaire
US4983104A (en) * 1989-06-23 1991-01-08 Osmonics, Inc. Bellows-type pump
US5224841A (en) * 1992-04-24 1993-07-06 Semitool, Inc. Pneumatic bellows pump with supported bellows tube
US6241487B1 (en) 1998-11-10 2001-06-05 Warren Rupp, Inc. Fluid powered diaphragm pump
RU2406900C2 (ru) * 2005-02-02 2010-12-20 Лев Николаевич Максимов Сильфон максимова

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR796685A (fr) * 1935-09-09 1936-04-11 Pompe à commande hydraulique
US2613610A (en) * 1949-02-04 1952-10-14 Milton Roy Co Differential bellows pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR796685A (fr) * 1935-09-09 1936-04-11 Pompe à commande hydraulique
US2613610A (en) * 1949-02-04 1952-10-14 Milton Roy Co Differential bellows pump

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4618425A (en) * 1983-05-04 1986-10-21 Production Techniques Limited Pump for pumping corrosive fluids
US5141412A (en) * 1988-10-06 1992-08-25 Meinz Hans W Double acting bellows-type pump
US5195878A (en) * 1991-05-20 1993-03-23 Hytec Flow Systems Air-operated high-temperature corrosive liquid pump
US5308230A (en) * 1993-03-08 1994-05-03 Stainless Steel Products, Inc. Bellows pump
US20040037722A1 (en) * 2002-08-23 2004-02-26 Iwaki Co., Ltd. Dual reciprocating bellows pump
US6814553B2 (en) * 2002-08-23 2004-11-09 Iwaki Co. Ltd. Dual reciprocating bellows pump, with a pair of interlocking shafts passing through a common pump head and dual pump chambers
US20050155658A1 (en) * 2004-01-20 2005-07-21 White Andrew J. Hermetically sealed pressure balanced accumulator
RU2260712C1 (ru) * 2004-03-18 2005-09-20 Васин Владимир Анатольевич Сильфонный двухступенчатый безмасляный насос
US20080226466A1 (en) * 2004-06-02 2008-09-18 Jan Eysymontt Hydraulically Driven Multicylinder Pumping Machine
US8096785B2 (en) * 2004-06-02 2012-01-17 Garniman S.A. Hydraulically driven multicylinder pumping machine
US20090123312A1 (en) * 2005-04-13 2009-05-14 Koganei Corporation Chemical liquid supplying apparatus
US8087910B2 (en) * 2005-04-13 2012-01-03 Koganei Corporation Chemical liquid supplying apparatus
EP2009283A3 (en) * 2007-01-19 2009-04-29 Garniman SA Hydraulically driven machine improvement
US20100178184A1 (en) * 2009-01-09 2010-07-15 Simmons Tom M Bellows plungers having one or more helically extending features, pumps including such bellows plungers, and related methods
US20100178182A1 (en) * 2009-01-09 2010-07-15 Simmons Tom M Helical bellows, pump including same and method of bellows fabrication
US8636484B2 (en) 2009-01-09 2014-01-28 Tom M. Simmons Bellows plungers having one or more helically extending features, pumps including such bellows plungers, and related methods
EP3862565A4 (en) * 2018-10-02 2022-05-18 Obshchestvo S Ogranichennoj Otvetstvennost'yu "Toreg" PUMPING PLANT
AU2019352546B2 (en) * 2018-10-02 2023-07-13 Obshchestvo S Ogranichennoj Otvetstvennost'yu "Toreg" Pump assembly

Also Published As

Publication number Publication date
GB956847A (en) 1964-04-29
FR1328970A (fr) 1963-06-07
LU43599A1 (en:Method) 1963-06-20
SE302888B (en:Method) 1968-08-05
DE1403973A1 (de) 1969-04-24
CH396431A (fr) 1965-07-31

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