With Additional Unitary Common Pumping And Motor Working Member Patents (Class 417/393)
  • Patent number: 10527033
    Abstract: A diaphragm for use in a pump is provided. The diaphragm includes a flexible disc-shaped body having a first surface and an outer edge. The flexible disc-shaped body is made of an elastomer material. The fabric is applied on the first surface of the flexible disc-shaped body. And the fabric is composed of woven aramid based fibers.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: January 7, 2020
    Assignee: Ingersoll-Rand Company
    Inventors: Mark Anthony Ezzo, Richard Kenneth Bean
  • Patent number: 10450211
    Abstract: A system and a method of aerating well water using an aeration system comprising a well water drop pipe approximately vertically positioned having a bottom end in a well below the pumping level of the well water. Attached to the bottom end of the pipe is a submersible water pump, and a limited check valve is fluidly attached above the water pump. A flow restrictor is fluidly attached above the limited check valve to limit the flow of water up the pipe, and above the flow restrictor or the check valve is fluidly attached a bleeder to allow air to flow into the pipe when negative pressure is in the pipe. Above the bleeder is fluidly attached at least one check valve to prevent flow of water back to the bleeder.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: October 22, 2019
    Inventor: Keith Julian
  • Patent number: 10399838
    Abstract: A dispenser system for providing variable carbonation can include a carbonated water source in communication with a carbonated water valve for controlling flow of carbonated water through the dispenser system; a still water source in communication with a still water valve for controlling flow of still water through the dispenser system; a nozzle in fluid communication with the carbonated water source and still water source; a processing device adapted to modulate the carbonated water and still water valves within a modulate cycle to achieve a ratio of carbonated to non-carbonated water; and a pour mechanism adapted to provide an input to the processing device to dispense the beverage.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: September 3, 2019
    Assignee: THE COCA-COLA COMPANY
    Inventor: Charles Bradley Green
  • Patent number: 10351410
    Abstract: A dispenser system for providing variable carbonation can include a carbonated water source in communication with a carbonated water valve for controlling flow of carbonated water through the dispenser system; a still water source in communication with a still water valve for controlling flow of still water through the dispenser system; a nozzle in fluid communication with the carbonated water source and still water source; a processing device adapted to modulate the carbonated water and still water valves within a modulate cycle to achieve a ratio of carbonated to non-carbonated water; and a pour mechanism adapted to provide an input to the processing device to dispense the beverage.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: July 16, 2019
    Assignee: THE COCA-COLA COMPANY
    Inventor: Charles Bradley Green
  • Patent number: 10174750
    Abstract: In at least one illustrative embodiment, a diaphragm pump includes a sleeve formed to include (i) a bore extending along a longitudinal axis and (ii) a sleeve port that opens to the bore, and a spool supported in the bore of the sleeve and formed to include a spool port, the spool being configured to move with a diaphragm during at least a portion of a stroke of the diaphragm such that the spool slides relative to the sleeve and, when the diaphragm reaches a turndown position that is between first and second end-of-stroke positions, the spool port aligns with the sleeve port to cause a pilot signal to be supplied to a cut-off valve. At least one of the sleeve and the spool may be rotatable about the longitudinal axis to adjust a location of the turndown position relative to the first and second end-of-stroke positions.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: January 8, 2019
    Assignee: Ingersoll-Rand Company
    Inventors: Jevawn Sebastian Roberts, Michael Brace Orndorff
  • Patent number: 10125757
    Abstract: A diaphragm pump (10) including a body (11) that provides a pair of opposed pump chambers (12) and (13). Mounted in the body (11) is a piston assembly (14) providing a pair of pistons (15) joined by a transverse piston rod (16) so that the pistons (15) are caused to reciprocate in unison linearly in the direction (17) along the axis (18). Each piston (15) includes a diaphragm (22) that provides a first sub-chamber (23) and a second sub-chamber (24). A working fluid (liquid or gas) under pressure is alternately delivered to the sub-chambers (23) to cause the piston assembly (14) to reciprocate. A valve (25) is operated to co-ordinate delivery of the fluid under pressure or alternately to the first sub-chambers (23).
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: November 13, 2018
    Assignee: Joe Santa & Associates PTY Limited
    Inventor: David Luiz Santa
  • Patent number: 10072650
    Abstract: A method of displacing fluid includes pulling a pump displacement member through a suction stroke with a pull, the pull configured to transmit only tensile forces to the fluid displacement member. A working fluid disposed in an internal pressure chamber drive the fluid displacement member through a pumping stroke. The pull is prevented from transmitting any compressive forces to the fluid displacement member, such that the pull does not drive the fluid displacement member through the pumping stroke.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: September 11, 2018
    Assignee: Graco Minnesota, Inc.
    Inventors: Bradley H. Hines, Brian W. Koehn, Jeffrey A. Earles, Paul W. Scheierl, Adam K. Collins
  • Patent number: 10030490
    Abstract: A hydraulic fluid distribution system includes a mechanical switch including a first valve, a first actuation pin extending axially from the first valve, and a second actuation pin extending axially from the first valve. The first valve includes an inlet port, a first outlet port, and a second outlet port. The first valve has a first position with the inlet port in fluid communication with the first outlet port and a second position with the inlet port in fluid communication with the second outlet port. The first actuation pin is configured to move in a first axial direction to transition the first valve from the second position to the first position, and the second actuation pin is configured to move in a second axial direction to transition the first valve from the first position to the second position.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: July 24, 2018
    Assignee: BP CORPORATION NORTH AMERICA, INC.
    Inventor: William Michel
  • Patent number: 9970336
    Abstract: In an engine having an electronically controlled hydraulic system for variable actuation of intake valves, an operating step of refilling, prior to ignition of the engine, is activated to refill a pressure chamber of the system with fluid when, after prolonged engine inactivity, the chamber has been emptied. In this refilling step, fuel supply to the engine is inhibited, and a camshaft is rotationally driven following upon activation of an engine-starting electrical machine. In this way, a pumping member associated to a tappet for actuating an intake valve is used as a pump for drawing fluid into the pressure chamber from an auxiliary fluid tank. During this step, a control valve is opened and closed in synchronism with movement of the pumping member so as to be open when the pumping member advances towards the pressure chamber and closed when the pumping member moves away from the pressure chamber.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: May 15, 2018
    Assignee: C.R.F. Societa Consortile per Azioni
    Inventors: Luca Gentile, Francesco Vattaneo
  • Patent number: 9903360
    Abstract: A novel changeover mechanism for a compressed air driven double diaphragm pump comprises a shaft slidably mounted through aligned apertures in opposing surfaces of the twin diaphragm chambers. At the center of the shaft between the two diaphragm chambers is provided an annular notch in to which is located an arm extending from a U shaped frame. The U shaped frame is pivotally mounted atop a valve plate which includes multiple ports. Positioned against a surface of the valve plate is a valve closure component which is configured to slide across the surface selectively obstructing the multiple ports. The valve closure component is held in place by a metal peg hingedly mounted in slots provided in parallel extension of the U shaped frame. Linear tension springs connect the hinged wire pusher with U shaped frame adjacent the pivot point. The springs bias the position of the valve closure component against the valve plate in an off center position.
    Type: Grant
    Filed: September 4, 2016
    Date of Patent: February 27, 2018
    Assignee: Carlisle Fluid Technologies, Inc.
    Inventor: John Anthony Rogers
  • Patent number: 9874206
    Abstract: A fluid pump includes a pump body enclosing a first cavity and a second cavity, a first flexible member disposed within the first cavity, a second flexible member disposed within the second cavity, and a drive shaft extending between and attached to each of the first flexible member and the second flexible member. The drive shaft is configured to slide back and forth within the pump body. The pump also includes a first shift valve and a second shift valve disposed between the first flexible member and the second flexible member, operatively coupled to deliver a drive fluid to drive fluid chambers in alternating sequence. Some fluid pumps disclosed herein include a housing defining a modular-receiving cavity and a modular insert secured within the modular-receiving cavity by an interference fit. Methods of manufacturing and using fluid pumps are also disclosed.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: January 23, 2018
    Assignee: White Knight Fluid Handling Inc.
    Inventors: Tom M. Simmons, John M. Simmons, David M. Simmons, Bruce Johnson
  • Patent number: 9752566
    Abstract: Diaphragm pumps, and pre-charging systems for use with such pumps, are disclosed. The diaphragm pump includes a first diaphragm that separates a cavity into a motive fluid chamber and a pumped media chamber, a charge chamber having a controlled volume, wherein the controlled volume is adjustable to vary a controlled mass of compressed fluid capable of being stored in the charge chamber, and one or more valves configured to (i) fluidly couple the motive fluid chamber to an exhaust chamber during a first stroke period, (ii) fluidly couple the charge chamber to a compressed fluid inlet during at least a portion of the first stroke period, and (iii) fluidly couple the charge chamber to the motive fluid chamber during a second stroke period.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: September 5, 2017
    Assignee: Ingersoll-Rand Company
    Inventors: Jevawn Sebastian Roberts, Michael Brace Orndorff
  • Patent number: 9683919
    Abstract: A viscometer cell attachment device which greatly improves efficiency, accuracy, precision, and safety when testing viscosity of a substance with a viscometer. The viscometer cell attachment device generally allows dangerous, high pressure, potentially explosive/flammable methane/fluids in a viscometer cell to be partially removed and contained safely, sheared by a constriction member, generally comprised of a length of OD tubing, which generates foams/emulsions, and then put back in the viscometer cell. The invention can be attached to some types of viscometers. It can handle methane safely and can be used to produce homogeneous methane/fluids foams/emulsions by repeating the process.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: June 20, 2017
    Inventor: Harpreet Singh Dinsa
  • Patent number: 9684541
    Abstract: An apparatus and method for determining thread execution parallelism. For example, a processor in accordance with one embodiment comprises: a plurality of cores to execute a plurality of threads; a plurality of counters to collect data related to the execution of the plurality of threads on the plurality of cores; a dependency analysis module to analyze the data related to the execution of the threads and responsively determine a level of inter-thread dependency; and a control module to responsively adjust operation of the plurality of cores based on the determined level of inter-thread dependency.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: June 20, 2017
    Assignee: Intel Corporation
    Inventors: Eliezer Weissmann, Arik Gihon, Efraim Rotem, Paul S. Diefenbaugh, Eric C. Samson, Michael Mishaeli, Yoni Aizik, Chen Ranel
  • Patent number: 9664186
    Abstract: In at least one illustrative embodiment, a diaphragm pump may include a sleeve formed to include (i) a bore extending along a longitudinal axis and (ii) a sleeve port that opens to the bore, and a spool supported in the bore of the sleeve and formed to include a spool port, the spool being configured to move with a diaphragm during at least a portion of a stroke of the diaphragm such that the spool slides relative to the sleeve and, when the diaphragm reaches a turndown position that is between first and second end-of-stroke positions, the spool port aligns with the sleeve port to cause a pilot signal to be supplied to a cut-off valve. At least one of the sleeve and the spool may be rotatable about the longitudinal axis to adjust a location of the turndown position relative to the first and second end-of-stroke positions.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: May 30, 2017
    Assignee: Ingersoll-Rand Company
    Inventors: Jevawn Sebastian Roberts, Michael Brace Orndorff
  • Patent number: 9598958
    Abstract: An air motor (10) that receives compressed air in order to be driven. The air motor (10) includes a valve assembly (11) with a base (12) of a unitary construction. The base (12) has opposite side faces (13) to which there is sealingly attached caps (14) that in cooperation with flexible diaphragms (15) provide working chambers (15, 16).
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: March 21, 2017
    Assignee: Joe Santa & Associates Pty Limited
    Inventor: David Luiz Santa
  • Patent number: 9504606
    Abstract: A microfluidic pump for implantation proximate an eye of a patient is disclosed herein. The microfluidic pump includes a first substrate with a microfluidic actuator that includes a first chamber and a second chamber coupled by a channel, an electrode in each of the chambers, and a slug positioned within the channel. The slug is displaceable by an electric potential. The microfluidic actuator of the microfluidic pump includes a reservoir aligned with the chamber, a membrane portion separating the reservoir and the chamber, and a second reservoir aligned with the second chamber. A second membrane portion separates the second reservoir and the second chamber. Each of the reservoirs has an inlet and an outlet; each of the inlets has a valve that prevents backflow. A second substrate of the microfluidic pump includes a flow path coupling the outlet of the first reservoir to the inlet of the second reservoir.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: November 29, 2016
    Assignee: Novartis AG
    Inventors: Nicholas M. Gunn, Andrew D. Johnson
  • Patent number: 9447780
    Abstract: A novel changeover mechanism for a compressed air driven double diaphragm pump comprises a shaft slidably mounted through aligned apertures in opposing surfaces of the twin diaphragm chambers. At the center of the shaft between the two diaphragm chambers is provided an annular notch in to which is located an arm extending from a U shaped frame. The U shaped frame is pivotally mounted atop a valve plate which includes multiple ports.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: September 20, 2016
    Assignee: Carlisle Fluid Technologies, Inc.
    Inventor: John Anthony Rogers
  • Patent number: 9429146
    Abstract: A pressure intensifier including reciprocating pistons located in respective piston chambers, and a valve mechanism which reciprocates corresponding to movement of the pistons. A pressurized fluid is received by the intensifier and is routed to the piston chambers via movement of the valve mechanism to drive the pistons for boosting pressure of an outgoing fluid. Thus, the pressure of the incoming fluid is used to boost the pressure of the outgoing fluid.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 30, 2016
    Inventor: John J. Fong
  • Patent number: 9316214
    Abstract: A pump operated with compressed gas is disclosed herein. The pump has two separate cylinders which share a common wall. Pistons are attached to a common shaft that runs through the common wall. The pistons are disposed within each of the cylinders. The pistons divide the cylinders into gas and liquid chambers. The liquid chambers of the cylinder form a liquid system and are in fluid communication with the liquid inlet and outlet. The gas chambers of the cylinders form a gas system and are in communication with gas inlet and outlet. A manifold switching mechanism controls routing of compressed gas to either one of the gas chambers to operate the gas operated pump. The pump may also have an automatic shutoff valve which shuts off operation of the pump when liquid from a liquid source has been depleted.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: April 19, 2016
    Inventor: Benjamin R. Du
  • Patent number: 9249792
    Abstract: A pump operated with compressed gas is disclosed herein. The pump has two separate cylinders which share a common wall. Pistons are attached to a common shaft that runs through the common wall. The pistons are disposed within each of the cylinders. The pistons divide the cylinders into gas and liquid chambers. The liquid chambers of the cylinder form a liquid system and are in fluid communication with the liquid inlet and outlet. The gas chambers of the cylinders form a gas system and are in communication with gas inlet and outlet. A manifold switching mechanism controls routing of compressed gas to either one of the gas chambers to operate the gas operated pump by way of a spool valve or a shuttle valve mechanism. The pump may also have an automatic shutoff valve which shuts off operation of the pump when liquid from a liquid source has been depleted.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: February 2, 2016
    Inventor: Benjamin R. Du
  • Patent number: 9192699
    Abstract: Apparatus (10, 200) for the provision of TNP therapy to a wound is described, the apparatus (10, 200) including: a waste canister (22, 204) into which fluid is aspirated from a wound by aspiration pump means (44, 248) and a fluid flow path (420, 422) for at least a part of said aspirated fluid on an outlet side of said aspiration pump means (44) wherein said fluid flow path (420, 422) on the outlet side comprises a silencing system (400) having a plurality of silencing elements (402, 404, 406) therein.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: November 24, 2015
    Assignee: Smith & Nephew PLC
    Inventors: Max Middleton, Stephen Jacob
  • Patent number: 9145881
    Abstract: An electromagnetic vibrating diaphragm pump is provided with a draining structure which can easily drain water flowed into the pump without a separate member preventing inflow of water. A first communicating passage is formed at a bottom end of a partition wall between a suction chamber and a compression chamber. A bottom portion inside the suction chamber slopes down toward the passage, making its compression chamber side lower than the suction chamber side. A second communicating passage is formed at a bottom end of a partition wall between an exhaust chamber and the compression chamber. A bottom portion inside the compression chamber slopes down toward the passage, making its exhaust chamber side lower than the compression chamber side. A bottom portion inside the exhaust chamber slopes down toward the exhaust port to make the exhaust port side lower. The exhaust port slopes down to make an outlet side thereof lower.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: September 29, 2015
    Assignee: TECHNO TAKATSUKI CO., LTD
    Inventors: Hideki Ishii, Tsuyoshi Takamichi
  • Publication number: 20150125319
    Abstract: A pumping cassette including a housing having at least two inlet fluid lines and at least two outlet fluid lines. At least one balancing pod within the housing and in fluid connection with the fluid paths. The balancing pod balances the flow of a first fluid and the flow of a second fluid such that the volume of the first fluid equals the volume of the second fluid. The balancing pod also includes a membrane that forms two balancing chambers. Also included in the cassette is at least two reciprocating pressure displacement membrane pumps. The pumps are within the housing and they pump the fluid from a fluid inlet to a fluid outlet line and pump the second fluid from a fluid inlet to a fluid outlet.
    Type: Application
    Filed: January 5, 2015
    Publication date: May 7, 2015
    Applicant: DEKA Products Limited Partnership
    Inventors: Jason A. Demers, Michael J. Wilt, Kevin L. Grant, James D. Dale, Brian D. Tracey
  • Publication number: 20150118078
    Abstract: A diaphragm pump includes a diaphragm cartridge assembly. The diaphragm cartridge is a self-contained unit having a diaphragm defining a pumped fluid side and a hydraulic fluid side and a seat receiving the hydraulic fluid side of the diaphragm and having a center opening. A biasing rod mounts to the diaphragm on the hydraulic fluid side and extending through the opening of the seat. A valve guide at an extended end of the biasing rod and a valve spool slidably mounts on the valve guide. A biasing element engages the seat and the valve guide. The pump may also include valve cartridges including a combined inlet check valve and discharge check valve.
    Type: Application
    Filed: October 31, 2014
    Publication date: April 30, 2015
    Inventor: Richard D. Hembree
  • Publication number: 20150098846
    Abstract: A process fluid pump can include a pump chamber, an inlet valve, and an outlet valve. Diaphragm regions can define at least a portion of each of the pump chamber, the inlet valve, and the outlet valve. The diaphragm regions can each have an actuation region with a surface that is convexly shaped when the formed actuation region is in a natural unstressed first state, and each formed actuation region can be actuated by a motive fluid to transition to a second state in which the surface is non-convexly shaped.
    Type: Application
    Filed: December 2, 2014
    Publication date: April 9, 2015
    Inventor: Troy J. Orr
  • Patent number: 8932030
    Abstract: A piston type pumping apparatus comprises a vertically oriented cylinder having a top and a bottom with a first aperture. There are first and second passageways for liquid in the cylinder at the top and bottom respectively thereof. A piston is reciprocatingly mounted within the cylinder and has an area against which pressurized fluid acts in the direction of movement of the piston. A hollow piston rod is connected to the piston and extends below the piston and slidably through the first aperture. There is a reload chamber below the cylinder. The piston rod extends slidably into the reload chamber and has a third passageway for liquid communicating thereto. A first one-way valve is located in the third passageway. There is also a fourth passageway that extends from the reload chamber to a source of liquid to be pumped and a second one-way valve therein.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: January 13, 2015
    Assignee: McNichol, Richard Frederick
    Inventors: Richard F. McNichol, Gordon Bryce
  • Publication number: 20150004019
    Abstract: In at least one illustrative embodiment, a diaphragm pump may comprise a sleeve formed to include (i) a bore extending along a longitudinal axis and (ii) a sleeve port that opens to the bore, and a spool supported in the bore of the sleeve and formed to include a spool port, the spool being configured to move with a diaphragm during at least a portion of a stroke of the diaphragm such that the spool slides relative to the sleeve and, when the diaphragm reaches a turndown position that is between first and second end-of-stroke positions, the spool port aligns with the sleeve port to cause a pilot signal to be supplied to a cut-off valve. At least one of the sleeve and the spool may be rotatable about the longitudinal axis to adjust a location of the turndown position relative to the first and second end-of-stroke positions.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 1, 2015
    Inventors: Jevawn Sebastian Roberts, Michael Brace Orndorff
  • Publication number: 20150004006
    Abstract: Illustrative embodiments of diaphragm pumps with chamber crossventing, and methods of operating such pumps, are disclosed. In at least one illustrative embodiment, a method of operating a diaphragm pump may comprise communicating compressed fluid from a compressed fluid inlet to a first motive fluid chamber to cause first and second diaphragms to move to a first end-of-stroke position, communicating compressed fluid from the first motive fluid chamber to a second motive fluid chamber while the first and second diaphragms are in the first end-of-stroke position, communicating compressed fluid from the compressed fluid inlet to the second motive fluid chamber to cause the first and second diaphragms to move to a second end-of-stroke position, and communicating compressed fluid from the second motive fluid chamber to the first motive fluid chamber while the first and second diaphragms are in the second end-of-stroke position.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 1, 2015
    Inventors: Jevawn Sebastian Roberts, Michael Brace Orndorff
  • Publication number: 20140356192
    Abstract: A pump includes a pump body defining a fluid chamber and inlet and outlet ports in fluid communication with the fluid chamber, an inlet check valve connected to the inlet port, an outlet check valve connected to the outlet port, and a piston housing coupled to the pump body and defining a piston chamber. A piston assembly is disposed at least partially within the piston chamber and at least partially within the fluid chamber and includes a piston and a poppet connected to the piston in proximity to the pump body. In addition, the pump includes a gland disposed between a portion of the piston housing and the pump body. Further, the pump includes the poppet having a poppet head axially connected to a diaphragm coupled to a poppet flange. The poppet head is connected to the piston.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 4, 2014
    Inventor: Hy Nguyen
  • Patent number: 8777592
    Abstract: A pump includes a pump body defining a fluid chamber and inlet and outlet ports in fluid communication with the fluid chamber, an inlet check valve connected to the inlet port, an outlet check valve connected to the outlet port, and a piston housing coupled to the pump body and defining a piston chamber. A piston assembly is disposed at least partially within the piston chamber and at least partially within the fluid chamber and includes a piston and a poppet connected to the piston in proximity to the pump body. In addition, the pump includes a gland disposed between a portion of the piston housing and the pump body. Further, the pump includes the poppet having a poppet head axially connected to a diaphragm coupled to a poppet flange. The poppet head is connected to the piston.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: July 15, 2014
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventor: Hy Nguyen
  • Publication number: 20140186200
    Abstract: A pump for driving a hydraulic fluid to adjust an angle of an airfoil has a transmission to be rotated to change the angle of incident of a plurality of airfoils. The transmission is driven through a rotating input to in turn rotate, and change the angle. The input is caused to rotate by a piston having engaging threads on the input, and the piston is mounted within a hydraulic chamber. Opposed chambers are on each of two opposed ends of the piston. A piezoelectric pump selectively delivers pressurized fluid into the opposed chambers to drive the piston, and to in turn cause the input to rotate.
    Type: Application
    Filed: December 31, 2012
    Publication date: July 3, 2014
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: Brandon M. Petersen
  • Patent number: 8733460
    Abstract: An method and apparatus for disbursing a pressurized liquid in the absence of electricity are disclosed. The method and apparatus for disbursing a pressurized liquid in the absence of electricity can include a gas source, a liquid source, a liquid pressurization system, and a liquid delivery system.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: May 27, 2014
    Inventor: Robert K. Fritz
  • Publication number: 20140105766
    Abstract: A fluid pump comprising a fluidic manifold comprising a plate constructed of a fluid-impermeable material. The plate has a pump platen, first fluid connectors, and second fluid connectors, and one or more channels formed therein for connecting the first connectors to the second connectors. The fluid pump has a fluid-impermeable membrane positioned on the plate and covering the one or more fluid channels to form one or more fluid paths. The fluid pump also has a pump tubing positioned on the pump platen, the pump tubing having a first part connected to a first one of the first fluid connectors and a second part connected to a second one of the first fluid connectors such that the pump tubing is fluidly connected to the channels via the first one and the second one of the first fluid connectors.
    Type: Application
    Filed: June 7, 2012
    Publication date: April 17, 2014
    Applicant: SIEMENS HEALTHCARE DIAGNOSTICS INC.
    Inventor: Darren Sharman
  • Patent number: 8690548
    Abstract: A heat pump system including a heat engine having a valve assembly positioned to divide the heat engine chamber into a first chamber and a second chamber. A piston is positioned within the heat engine and includes a first piston head in the first chamber, a second piston head in the second chamber, and a connecting rod connecting the first and second piston heads and extending through a bore in the valve assembly. The valve assembly includes a one-way inlet valve and a one-way outlet valve in fluid communication with each of the first and second heat engine chambers. The valve assembly is also in fluid communication with a condenser and evaporator of the heat pump system. The system may also include improved one-way valves, a condensate pump, and a novel shifting valve.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: April 8, 2014
    Inventor: Fred D. Solomon
  • Patent number: 8573309
    Abstract: The present invention comprises a downhole unit that includes at least one plunger and that uses a power fluid to recover production fluid from a well. The downhole unit recovers production fluid and brings it to the surface of the well during both the downward and upward motion of the at least one plunger. The downhole unit can also optionally dispose of unwanted fluids in a formation.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: November 5, 2013
    Inventor: Eugene Darrell Simmons
  • Patent number: 8529223
    Abstract: A pump assembly includes a housing defining a working chamber, a water pump chamber and a waste pump chamber. A first diaphragm separates the water pump chamber and the working chamber. A second diaphragm separates the waste pump chamber and the working chamber. A common driver member interconnects the first diaphragm and the second diaphragm. Movement of the driven member to a first position creates a positive pressure in the water pump chamber and a negative pressure in the waste pump chamber. Movement of the driven member to a second position creates a negative pressure in the water pump chamber and a positive pressure in the waste pump chamber.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: September 10, 2013
    Assignee: Thetford Corporation
    Inventors: William R. Cohoon, George Grech, Steven A. Meyer
  • Patent number: 8496451
    Abstract: A diaphragm assembly for a fluid driven diaphragm pump includes a piston having an inflexible core. This core includes a hub with a plate extending radially from about the periphery of the hub. The piston further includes a unitary diaphragm body molded with the inflexible core in situ. The unitary diaphragm body has a plurality of connective tendons extending through the plate. A thermoplastic coating extends about the inflexible core between the core and the molded unitary diaphragm body having a thermally miscible surface with the thermoplastic coating. An inflexible backing plate extends in juxtaposition with the diaphragm.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: July 30, 2013
    Assignee: Wilden Pump and Engineering LLC
    Inventors: Nathan Earl Hale, David Brian McCall, Wallace Christian Wiitkoff, Robert Foster Jack
  • Patent number: 8485792
    Abstract: A method for increasing compressed air efficiency in a pump utilizes an air efficiency device in order to optimize the amount of a compressed air in a pump. The air efficiency device may allow for controlling the operation of the air operated diaphragm pump by reducing the flow of compressed air supplied to the pump as the pump moves between first and second diaphragm positions. A sensor may be used to monitor velocity of the diaphragm assemblies. In turn, full position feedback is possible so that the pump self adjusts to determine the optimum, or close to optimum, turndown point of the diaphragm assemblies. As such, air savings is achieved by minimizing the amount of required compressed air.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: July 16, 2013
    Assignee: Warren Rupp, Inc.
    Inventors: Mark D. McCourt, Haihong Zhu, Michael Brace Orndorff, Jevawn Sebastian Roberts, Charles Randolph Abbott
  • Patent number: 8262366
    Abstract: Piston systems comprise a housing including a first piston chamber and a second piston chamber therein. A first piston is movably disposed within the first piston chamber and a second piston is movably disposed within the second piston chamber. A flow path extends between and couples the first piston chamber and the second piston chamber. Reciprocating pumps comprising a flow path between a plurality of piston chambers and methods of driving reciprocating pumps are also disclosed.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: September 11, 2012
    Inventors: Tom M. Simmons, John M. Simmons, David M. Simmons
  • Patent number: 8177526
    Abstract: Power and control logic configurations for gas well dewatering systems are provided. In one example, a reservoir is configured to contain hydraulic, lubricating fluid. An electric motor is configured to receive fluid from the reservoir for lubrication and a hydraulic pump powered by the electric motor is configured to receive fluid from the reservoir and pump the fluid into a hydraulic circuit. A positive displacement oscillating pump is powered by the hydraulic pump and configured to pump fluid from the reservoir to an outlet from the well. The electric motor and hydraulic pump receive the same fluid from the reservoir for lubrication and to create pressure in the hydraulic circuit, respectively.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: May 15, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Michael A. Dowling, Jason Kamphaus, Harryson Sukianto, Alain P. Dorel, John David Rowatt, Arthur I. Watson
  • Publication number: 20110142692
    Abstract: An air logic controller for increasing the efficiency of an air operated double diaphragm pump. The air logic controller may increase the efficiency of the pump by controlling the supply of compressed fluid to the pump. In one embodiment, the air logic controller may control the supply of compressed fluid to the pump by replacing the continuous, large volume supply of compressed fluid supplied to conventional air operated pumps during a single pumping stroke with a varied supply of compressed fluid. The varied supply of compressed fluid may comprise a supply of compressed fluid that alternates between a large volume supply and a small volume supply of compressed fluid. The air logic controller may vary the supply of compressed fluid to the pump based at least partially on the position of a main air valve spool and the setting on an adjustable pneumatic time delay relay.
    Type: Application
    Filed: December 16, 2009
    Publication date: June 16, 2011
    Applicant: IDEX AODD, Inc.
    Inventor: David Roseberry
  • Publication number: 20100215519
    Abstract: An air operated double diaphragm pump comprising an air valve mechanism. The air valve mechanism may comprise a single valve system that replaces the two valve system found in conventional air operated double diaphragm pumps. The position of the valve may be determined by the diaphragm motion of the pump up to a stall position. A spring-loaded mechanical actuation may complete the valve action from the stall position to the final or end of stroke position of the pump.
    Type: Application
    Filed: February 25, 2009
    Publication date: August 26, 2010
    Applicant: IDEX AODD, INC.
    Inventors: Larry Francis Krebs, Craig Daniel Sunada, Mark Edward Connell
  • Publication number: 20100170537
    Abstract: With the waste container washing system described herein, the waste container can be moved into a washing compartment of the washing vehicle for washing thereof; in a first washing phase, the waste container can be exposed to a plurality of water jets of grey water pumped from a grey water reservoir; and in a second washing phase, the waste container can be exposed to a plurality of clean water pumped from a clean water reservoir. The water used in the first and/or second washing phase can be collected and stored in the grey water reservoir. Other improvements, such as a double-action pump for the two phases, a filtering system for grey water, a container movement system and path, and methods are also described.
    Type: Application
    Filed: January 7, 2009
    Publication date: July 8, 2010
    Applicant: 9103-8034 Quebec Inc.
    Inventor: Serge Gingras
  • Publication number: 20100172771
    Abstract: A multiphase pump includes a master cylinder having a first port adjacent to a first end of the master cylinder, and a second port adjacent to a second end of the master cylinder connected to a source of hydraulic fluid. A master piston is positioned within the master cylinder. A slave cylinder is adjacent to each of the first and second ends of the master cylinder. Each slave cylinder has a first input port and a first output port adjacent to a first end of each slave cylinder, and a second input port and a second output port adjacent to a second end of each slave cylinder. Each first input port and second input port is adapted to connect to a source of gas to be compressed. A slave piston is positioned within each slave cylinder and is connected to the master cylinder such that movement of the master piston results in movement of each slave piston.
    Type: Application
    Filed: November 11, 2009
    Publication date: July 8, 2010
    Inventor: Clayton Hoffarth
  • Publication number: 20100028174
    Abstract: A valve assembly includes first and second conduits having respective first and second flanges in abutment with each other, a stopper in the second conduit, and a valve body secured between the first and second flanges. The valve body includes a body bore in communication between the first and second conduits. The body bore defines a circular opening in one end of the valve body. The valve body also includes a circumferential notch that substantially insulates the circular opening from distortion arising from securing the valve body. The stopper snuggly seats against the circular opening to prevent fluid flow from the second conduit to the first conduit, but unseats to permit fluid flow from the first conduit to the second conduit. An o-ring may surround a portion of the valve body and be energized as the valve body is secured. A lip may surround the circular opening to provide a seat for the stopper.
    Type: Application
    Filed: October 13, 2009
    Publication date: February 4, 2010
    Applicant: INGERSOLL RAND COMPANY
    Inventors: Thomas R. Headley, Lloyd I. Towne
  • Publication number: 20090246046
    Abstract: A fluid pump assembly is disclosed for performing in a damp environment. A pump member is provided that drives a quantity of fluid. A pump housing encloses the pump member and includes a breather hole for circulating cooling air around the pump member during operation. A cover is provided that substantially covers the breather hole and defines a tortuous path that enables air to circulate through the breather hole while preventing entry of water thereto.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 1, 2009
    Inventors: Michael Binfet, David Rose
  • Publication number: 20090092505
    Abstract: A pump assembly includes a housing defining a working chamber, a water pump chamber and a waste pump chamber. A first diaphragm separates the water pump chamber and the working chamber. A second diaphragm separates the waste pump chamber and the working chamber. A common driver member interconnects the first diaphragm and the second diaphragm. Movement of the driven member to a first position creates a positive pressure in the water pump chamber and a negative pressure in the waste pump chamber. Movement of the driven member to a second position creates a negative pressure in the water pump chamber and a positive pressure in the waste pump chamber.
    Type: Application
    Filed: October 3, 2008
    Publication date: April 9, 2009
    Applicant: THETFORD CORPORATION, A DELAWARE CORPORATION
    Inventors: William R. Cohoon, George Grech, Steven A. Meyer
  • Publication number: 20090016909
    Abstract: A pump for use in handling one or more different process fluids includes a plurality of pumping chambers having a process fluid inlet and a process fluid outlet, process fluid outlet coupled to a process fluid valve on each pumping chamber for selectively preventing and allowing the flow of process fluid through the pumping chamber, an actuation mechanism for pumping actuating fluid to a plurality of actuating fluid chambers in fluid communication with the actuating fluid chambers to permit flow into each actuating fluid chamber of actuating fluid, and at least one diaphragm separating each pumping chamber from an associated actuating fluid chamber, for separating process fluid from actuating fluid. Operation of the actuation mechanism displaces actuating fluid and causes actuating fluid to flow only into each of the actuating fluid chambers having an opened process fluid valve, resulting in pumping.
    Type: Application
    Filed: November 12, 2007
    Publication date: January 15, 2009
    Applicant: INTEGRATED DESIGNS L.P.
    Inventors: Raymond T. Savard, Greg Gray
  • Patent number: 7458309
    Abstract: Reciprocating pumps are disclosed. Particularly, reciprocating pumps including pressure chambers and fluid chambers defined by flexible members are disclosed. The volume of the pressure chambers and fluid chamber may be controlled using a piston driven by the flow of a control fluid to a pressure chamber and associated piston chamber. The flow of the control fluid may be directed to a first pressure chamber and associated piston chamber or a second pressure chamber and associated piston chamber. A pneumatically driven switch or an electrically driven switch may direct the flow of control fluid. The electrically driven switch may be controlled with a timer, a pressure sensor, or an optical sensor. The reciprocating pump requires minimal modification to permit the use of a pneumatic switch or electrical switch.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: December 2, 2008
    Inventors: Tom M. Simmons, John M. Simmons, David M. Simmons