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公开(公告)号：US20240344509A1
公开(公告)日：2024-10-17
申请号：US18635512
申请日：2024-04-15
Applicant: Timmer GmbH
Inventor： Herbert Timmer
IPC: F04B43/02 , F04B43/04 , F04B43/073 , F04B53/14
CPC classification number: F04B43/026 , F04B43/04 , F04B53/146 , F04B43/0736
Abstract: A double membrane pump having a casing and a piston rod movably received in the casing, the casing having at least one inlet opening and at least one outlet opening, and a first membrane is arranged at one end of the piston rod and a second membrane is arranged at the other end of the piston rod. The first membrane is arranged in a first chamber of the double membrane pump and the second membrane is arranged in a second chamber. The membranes are designed to separate the chambers into a product chamber and an expansion chamber respectively. The pump has a drive device for bringing about a translational movement of the piston rod. The double membrane pump has a piston rod which is designed to perform a self-regulated, oscillating movement and thus enables simplified control of the membranes.
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公开(公告)号：US20240018952A1
公开(公告)日：2024-01-18
申请号：US18465810
申请日：2023-09-12
Applicant: Cytiva Sweden AB
Inventor： Andreas Torbjorn Lundin , Klas Marteleur , Mats Lundkvist , Andreas Marcstrom , David Gronowitz
CPC classification number: F04B1/047 , F04B43/026 , F04B43/02
Abstract: A multiple cavity reciprocating positive displacement pump comprising plural pump cavities each including at least one pair of one-way valves the at least one pair including an inlet valve and an outlet valve, the pump being characterised in that respective inlet valves are in fluid communication with a common inlet and respective outlet valves are in fluid communication with a common outlet. The multiple cavities may include diaphragm arranged in a radial configuration for more uniform pressure output.
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公开(公告)号：US11815075B2
公开(公告)日：2023-11-14
申请号：US16645022
申请日：2018-09-06
Applicant: Cytiva Sweden AB
Inventor： Andreas Torbjorn Lundin , Klas Marteleur , Mats Lundkvist , Andreas Marcstrom , David Gronowitz
CPC classification number: F04B1/047 , F04B43/02 , F04B43/026
Abstract: A multiple cavity reciprocating positive displacement pump (200) comprises a plurality of pump cavities (222), each pump cavity (222) including at least an inlet valve (228) and an outlet valve (231), wherein respective inlet valves (228) are in fluid communication with a common inlet (224) and respective outlet valves (231) are in fluid communication with a common outlet (238), and wherein the pump cavities (222) are arranged about a pump axis (AR) and around said common inlet (224) and said common outlet (238).
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公开(公告)号：US20180230979A1
公开(公告)日：2018-08-16
申请号：US15430149
申请日：2017-02-10
Applicant: PEOPLEFLO MANUFACTURING, INC.
Inventor： Daniel T. Turner , William R. Blankemeier , Clark J. Shafer
Abstract: A reciprocating pump and transmission assembly having a one-way clutch is disclosed. The transmission includes an input shaft with an eccentric element, a drive link rotatably connected at one end to the eccentric element and at the other to a driven arm. The driven arm is connected to a driven shaft via a one-way clutch. The oscillating motion of the eccentric drives the drive link and driven arm and the one-way clutch translates that motion into incremental motion of the driven shaft. By changing the stroke length of the drive link various gear ratios between the drive shaft and driven shaft are achieved. The driven shaft then uses a mechanism such as a Scotch Yoke to create reciprocating motion to drive one or more pumping elements.
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公开(公告)号：US10036378B2
公开(公告)日：2018-07-31
申请号：US13780079
申请日：2013-02-28
Applicant: Ingersoll-Rand Company
Inventor： Warren Andrew Seith
IPC: F04B43/073 , F04B43/00 , F04B43/067 , F04B49/06 , F04B49/12 , F04B43/02
CPC classification number: F04B43/0736 , F04B43/0081 , F04B43/026 , F04B43/067 , F04B43/073 , F04B49/065 , F04B49/12
Abstract: Illustrative embodiments of positive displacement pumps utilizing pressure compensating calibration, as well as related systems and methods, are disclosed. In one illustrative embodiment, a method of operating a positive displacement pump includes sensing, with a pressure sensor disposed at a fluid outlet of the positive displacement pump, a back pressure at the fluid outlet, transmitting a pressure signal associated with the sensed back pressure from the pressure sensor to a controller of the positive displacement pump, and identifying, on the controller, a volume of fluid pumped by the positive displacement pump using the pressure signal.
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Patent Agency Ranking
公开(公告)号：US09976546B2
公开(公告)日：2018-05-22
申请号：US14009777
申请日：2012-04-09
Applicant: Hideki Ishii , Tsuyoshi Takamichi
Inventor： Hideki Ishii , Tsuyoshi Takamichi
CPC classification number: F04B45/04 , F04B17/03 , F04B35/045 , F04B39/121 , F04B39/123 , F04B43/026 , F04B43/04 , F04B45/043 , F04B45/047
Abstract: An electromagnetic vibrating diaphragm pump capable of increasing pump efficiency by increasing the vibration amplitude of the vibration of diaphragms even when the pressure inside a compression chamber is high. Diaphragms are fixed to both end portions of an oscillator having magnets. AC driven electromagnets are provided in a manner to face the magnets of the oscillator. A frame adhered to the outer peripheries of the diaphragms covers the electromagnet side, and pump casings cover the opposite sides. The pump casing includes a compression chamber adjacent to the diaphragm, a suction chamber connected to the compression chamber via a suction valve and an exhaust chamber connected to the compression chamber via an exhaust valve, the suction chamber or the exhaust chamber being connected to the frame via a continuous hole.
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公开(公告)号：US20180038363A1
公开(公告)日：2018-02-08
申请号：US15231252
申请日：2016-08-08
Applicant: James Ernest TRETHEWEY
Inventor： James Ernest TRETHEWEY
CPC classification number: F04B43/04 , F04B43/023 , F04B43/026 , F04B53/10 , F04B53/1002 , F04B53/16 , H02K33/12 , H02K33/16
Abstract: A double diaphragm pump has an electromagnetic drive mechanism in which an electromagnetic coil is located between two permanents magnets of like polarity that are alternately attracted to the electromagnetic coil as the polarity of the electromagnetic coil changes. The electromagnetic coil and the permanent magnets are located within a piston assembly that is caused to reciprocate via the change in polarity of the electromagnetic coil. In a second embodiment, there are a plurality of electromagnetic coils arranged in two adjacent rows that surround a shaft with a set of a plurality of permanent magnets located between each pair of electromagnetic coils.
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公开(公告)号：US09714650B2
公开(公告)日：2017-07-25
申请号：US14105622
申请日：2013-12-13
Applicant: Matthew G. Morris, Jr.
Inventor： Matthew G. Morris, Jr.
CPC classification number: F04B43/026 , A61M5/14224 , A61M5/14228 , A61M2205/12 , A61M2205/128 , F04B43/0054 , F04B43/025 , F04B43/028
Abstract: Provided is a pumping system that includes a parallel dual chamber pumping mechanism and an attachable disposable cassette. The disposable cassette includes a multi-laminate membrane which facilitates efficient, accurate and uniform delivery of fluids. The multi-laminate membrane is held in intimate contact with the pumping fingers of the pumping mechanism by electrostatic or magnetic attraction, thereby allowing the pump to pull a vacuum without the need for a preloaded elastomeric pumping segment.
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公开(公告)号：US20170135531A1
公开(公告)日：2017-05-18
申请号：US15350185
申请日：2016-11-14
Applicant: GOJO Industries, Inc.
Inventor： Wing-Hoi Ringo MAK , Zhen-He HUANG , Xiao HUANG , Chung-Ming YIU , Nick E. Ciavarella
CPC classification number: A47K5/14 , A47K5/16 , B05B7/0018 , B05B7/0416 , B05B7/2402 , F04B13/02 , F04B43/0045 , F04B43/025 , F04B43/026 , F04B43/04 , F04B53/10
Abstract: A sequentially activated multi-diaphragm foam pump for a foam dispenser includes a housing with a liquid pump portion and air pump portion secured to the housing. The liquid pump portion has a liquid inlet, a liquid inlet valve, a liquid pump diaphragm, a liquid outlet valve, and a liquid outlet. The air pump portion has a first and second air inlet, a first and second air inlet valve, a first and second air pump diaphragm, and a first and second air outlet. The sequentially activated multi-diaphragm foam pump also includes a mixing chamber that is in fluid communication with the liquid outlet, the first air outlet, and the second air outlet. The liquid pump diaphragm, the first air pump diaphragm, and the second air pump diaphragm operate in sequential order. The liquid pump diaphragm pumps liquid into the mixing chamber, the first air pump diaphragm pumps air into the mixing chamber to mix with the liquid to form a liquid air mixture, and the second air pump diaphragm pumps air into the mixing chamber to mix with the liquid air mixture to form a foamy mixture. The foamy mixture is dispensed through an outlet that is in fluid communication with the mixing chamber.
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10.发明申请AIR OPERATED DOUBLE DIAPHRAGM PUMP WITH DIFFERENTIATED CHECK VALVE SIZING 审中-公开具有差异检查阀门尺寸的空气操作双面膜片泵公开(公告)号：US20170051734A1
公开(公告)日：2017-02-23
申请号：US15198577
申请日：2016-06-30
Applicant: Trebor International
Inventor： Cody Lee Gehrke , Cory Dennis Shorr , Craig Lee Jensen , Kelly E. Davis , Lauren Nickolas Rose
CPC classification number: F04B43/06 , F04B43/026 , F04B53/10 , F04B53/1002 , F04B53/108
Abstract: In one example, a displacement pump has a suction side including a suction check valve, and a discharge side including a discharge check valve. The discharge side and suction side are each configured for selective fluid communication with each other, and the suction check valve defines a flow area that is relatively larger than a flow area defined by the discharge check valve.
Abstract translation: 在一个示例中，排量泵具有包括吸入止回阀的吸入侧和包括排出止回阀的排出侧。 排出侧和吸入侧各自被构造成用于彼此选择性地流体连通，并且吸入止回阀限定相对大于由排放止回阀限定的流动面积的流动面积。
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