Patents Examined by Essama Omgba
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Patent number: 11742191Abstract: Within an ion pump, accelerated ions leave the center portion of an anode tube due to the anode tube symmetry and the generally symmetrical electric fields present. The apparent symmetry within the anode tube may be altered by making the anode tube longitudinally segmented and applying independent voltages to each segment. The voltages on two adjacent segments may be time varying at different rates to achieve a rasterizing process.Type: GrantFiled: June 28, 2021Date of Patent: August 29, 2023Assignee: Hamilton Sundstrand CorporationInventors: Ben D. Gardner, David E Burchfield
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Patent number: 11739770Abstract: A radial hydraulic wind turbine pump system incorporates: 1) a concentric, multi-lobed cam that produces multiple strokes per revolution; 2) a piston profile that maximizes the number of large-diameter pistons arranged radially around the centerline axis; 3) a flexible piston base 50 with internal oil flow; 4) hydraulically connected cylinders which counter displacement issues raised in item 2 above; 5) variable stroke capability leading to infinitely variable output and the ability to disengage unneeded cylinders from the cam; 6) integral reservoir and accumulator capacity; 7) compact, external pressure and return manifolds; 8) axially-oriented pressure and return manifolds 60, 70, and 9) a hydraulic reservoir and pressure tank integrated into the body of the pump.Type: GrantFiled: December 11, 2019Date of Patent: August 29, 2023Inventor: Robert D. Kline
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Patent number: 11708821Abstract: Embodiments of the invention provide a pump assembly for a hydraulic tool. The pump assembly can include a reciprocating element that is configured to move between a retracted position and an extended position, a cam surface in the reciprocating element that can engage cam followers, a rotating element that can receive rotational input, and a base that can at least partially surrounds the rotating element. Movement of the cam followers along the cam surface can move the reciprocating element from the retracted position to the extended position.Type: GrantFiled: July 18, 2022Date of Patent: July 25, 2023Assignee: Milwaukee Electric Tool CorporationInventor: James O. Myrhum, Jr.
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Patent number: 11698066Abstract: A pressure-controlling device (10) includes a pump (21), a connection pipe (30), a first valve (41), and a second valve (42). The pump (21) has an inlet port (211) and an outlet port (212). The connection pipe (30) has a first end in communication with the outlet port (212), and a second end in communication with the inlet port (211) and that has a first space (31) that contains the first end, a second space (32) that contains the second end, and a third space (33) that is located between the first space (31) and the second space (32).Type: GrantFiled: November 21, 2019Date of Patent: July 11, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Nobuhira Tanaka, Kenjiro Okaguchi
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Patent number: 11680572Abstract: A position deviation calculated by a subtractor of a vacuum pump is input to the PIDs of three modes. The first PID is a PID controller for a high-bias mode, the second PID is a PID controller for a high-rigidity mode, and the third PID is a PID controller for a low-rigidity mode. The output signal of the third PID is extracted as a change of an indicator current for each clock of a PWM frequency and then the mean value of a change of an indicator current for several clocks is determined in a calculating unit. At this point, a switching control unit performs an operation on whether the mean value of the averaged change of the indicator current is larger than a preset redetermined value and then according to the result, an ? value is outputted in the range of 0 to 1 from the switching control unit.Type: GrantFiled: August 24, 2018Date of Patent: June 20, 2023Assignee: Edwards Japan LimitedInventors: Yoshimasa Ezawa, Hideo Fukami, Kou Sato
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Patent number: 11655816Abstract: A fluid working system such as a pump for displacing a working fluid such as hydraulic fluid or a motor using a working fluid is provided. The system may have a positive displacement machine which includes one or more working chamber with displacement means such as a cylinder with a reciprocating piston. There are also two or more fluid ports to allow the working fluid to flow into and out of the working chamber. The working fluid flows from one fluid port means to another either being forced to do so when pumped or moving the piston when functioning as an engine. The fluid working system has associated therewith a non-dead compliance volume of a material such as syntactic foam. This compliance volume acts to smooth any pressure fluctuations within the working fluid system.Type: GrantFiled: May 8, 2015Date of Patent: May 23, 2023Assignee: Danfoss Power Solutions GmbH & Co. OHGInventors: Elliott Gruber, Luke Wadsley
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Patent number: 11619235Abstract: A dual priming system connected with a centrifugal pump to evacuate gas therefrom includes a positive displacement pump fluidly connectable with the centrifugal pump and a venturi fluidly connectable with the centrifugal pump in parallel with the positive displacement pump. The dual priming system is operational in a first mode, wherein the positive displacement pump is inactive and the venturi is activated, and a second mode, wherein the positive displacement pump is activated and the venturi is activated.Type: GrantFiled: August 17, 2020Date of Patent: April 4, 2023Assignee: HALE PRODUCTS, INC.Inventors: Michael A. Laskaris, David Lamont Miller
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Patent number: 11592024Abstract: A multi-stage rotary vane pump comprising at least two rotor elements. The rotor elements are supported by a rotor shaft. The rotor elements and the rotor shaft are in the form of a single piece.Type: GrantFiled: September 20, 2016Date of Patent: February 28, 2023Assignee: LEYBOLD GMBHInventors: Jean-Francois Aubert, Christophe Despesse
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Patent number: 11572870Abstract: A pneumatic pump silencer including a body defining an inner volume and having at least one wall including an air outlet orifice, and an attenuating pad having a face arranged across from the air outlet orifice, wherein a gap is arranged between the face of the attenuating pad and an outer face of the wall including the air outlet orifice, the thickness of the gap being between 0.5 mm and 5 mm.Type: GrantFiled: March 26, 2020Date of Patent: February 7, 2023Assignee: EXEL INDUSTRIESInventor: Nicolas Plantard
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Patent number: 11538598Abstract: Clamps can be secured to a slip joint and limit flow through the same by seating on a diffuser axially regardless of wear and damage in the slip joint. An extension from the clamp seats to the inlet mixer. These extensions can be adjusted from outside the clamp to achieve an individual preload or flow limitation through the slip joint. The extension may be an O-ring or other shape. A biasing drive may connect to and move the extension from an outside surface of the clamp. The biasing drive may include a threaded cap in an outer groove that is linked to a plunger via a spring. Clamps are fabricated of materials that maintain their physical properties when exposed to an operating nuclear reactor environment and may be relatively rigid and resilient metals.Type: GrantFiled: October 29, 2018Date of Patent: December 27, 2022Assignee: GE-Hitachi Nuclear Energy Americas LLCInventors: Hampton W. Lane, Bret E. Nelson, Brandon J. Schoonmaker, Lee J. Andre, Hugo P. Rooney, David J. Bell
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Patent number: 11511867Abstract: An air cycle machine is provided. The air cycle machine can be included an environmental control system of an aircraft. The air cycle machine can include a turbine comprising a plurality of inlet gas flow paths, a compressor driven by the turbine from a shaft, and a fan driven by the turbine from the shaft.Type: GrantFiled: May 24, 2017Date of Patent: November 29, 2022Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Louis J. Bruno, Harold W. Hipsky
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Patent number: 11506190Abstract: A pump assembly for use within a high pressure pumping system includes housing, a head and a base. The housing contains at least one centrifugal pump stage. The head and base are attached to the housing with corresponding internal threaded connections. The head and base are further retained to the housing with corresponding external flanged connections. The external flanged connections provide redundant connections that reduce the risk of separation between the housing and the head and base.Type: GrantFiled: October 15, 2013Date of Patent: November 22, 2022Assignee: Baker Hughes ESP, Inc.Inventors: Matthew Allen Schoelen, Chengbao Wang, Colby Lane Loveless, Vishal Gahlot, Mark James
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Patent number: 11499552Abstract: A fluid working system such as a pump for displacing a working fluid such as hydraulic fluid or a motor using a working fluid is provided. The system may have a positive displacement machine which includes one or more working chamber with displacement means such as a cylinder with a reciprocating piston. There are also two or more fluid ports to allow the working fluid to flow into and out of the working chamber. The working fluid flows from one fluid port means to another either being forced to do so when pumped or moving the piston when functioning as an engine. The fluid working system has associated therewith a non-dead compliance volume of a material such as syntactic foam. This compliance volume acts to smooth any pressure fluctuations within the working fluid system.Type: GrantFiled: May 6, 2016Date of Patent: November 15, 2022Assignee: Danfoss Power Solutions GmbH & Co. OHGInventors: Elliott Gruber, Luke Wadsley
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Patent number: 11499555Abstract: A vane rotary compressor may include a main bearing and a sub bearing provided with a plurality of back pressure pockets each having a different pressure formed on a surface facing the cylinder, a rotational shaft radially supported by the main bearing and the sub bearing, a roller provided with a back pressure chamber that communicates with the plurality of back pressure pockets and having a plurality of vanes configured to divide a compression space into a plurality of compression chambers. At least one of the main bearing or the sub bearing is provided with an oil supply passage that communicates with a back pressure pocket having a relatively low pressure among the plurality of back pressure pockets. Accordingly, oil may be smoothly supplied to a back pressure pocket having a low pressure.Type: GrantFiled: January 6, 2020Date of Patent: November 15, 2022Assignee: LG ELECTRONICS INC.Inventors: Kiyoul Noh, Seokhwan Moon, Joonhong Park
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Patent number: 11493033Abstract: An air compressor system includes a motor operably connected to an air compressor, a separator tank fluidly connected to the air compressor by a supply line, a compressed air line coupled to the separator tank, a service valve connected to the compressed air line and positioned downstream of the separator tank, and a controller in operable communication with the motor, wherein in response to the controller detecting the motor operating at an idle speed, the controller reduces the motor speed to a low idle speed and reduces pressure in the separator tank, the low idle speed being slower than the idle speed.Type: GrantFiled: November 20, 2018Date of Patent: November 8, 2022Assignee: CLARK EQUIPMENT COMPANYInventors: Petr Jindra, Ctibor Balas, Jaromir Nusl
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Patent number: 11486372Abstract: The present invention relates to a rotary barrel pump where the pivot connection between barrel (6) and casing (15) is provided by the distinct guide and centering means.Type: GrantFiled: October 8, 2018Date of Patent: November 1, 2022Assignee: IFP ENERGIES NOUVELLESInventors: Jean Tricard, Julien Trost, Philippe Pagnier
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Patent number: 11486383Abstract: In many pump types, in particular in orbital pumps, there is an optimization need with regard to the running characteristics, in particular with regard to parameters which relate to the delivery flow. What is provided is an orbital pump device for delivering liquid medium by a rotational movement including a hydraulic housing surrounding a hydraulic chamber in a fluid-tight manner at least one membrane unit which is arranged inside the hydraulic chamber in flat contact with an inner jacket surface of the hydraulic housing; and an inlet and an outlet provided in the hydraulic housing. At least one crowning is provided at the inner jacket surface and/or at the membrane unit such that a radial gap between the membrane unit and the inner jacket surface is defined by the crowning in a circumferential section of less than 360°, and in particular less than 180°.Type: GrantFiled: September 8, 2020Date of Patent: November 1, 2022Inventors: Gerhard Kuhnert, Patrick Stengel, Lars Uebersohn, Christian Dold
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Patent number: 11480188Abstract: An integrated pressurized pump shaft seal assembly for a submersible rotary fluid pump comprises an oil reservoir having a pressure equal or less than the ambient pressure external fluids surrounding the casing, the oil reservoir feeding an oil pump impeller that is mountable onto, so as to be rotated by, the rotary fluid pump shaft. The impeller is a radial hole impeller in fluid communication with an adjacent diffusion element comprising an internal diffusion bore in fluid communication with an axially vertical spiral volute diffusion chamber located between inner and outer walls of a mechanical seal housing. The centrifugal oil pump impeller pumps oil from the oil reservoir to the seal chamber through the diffusion element and the internal volute diffusion element so as to increase a pressure within the seal chamber to a positive pressure above the ambient pressure of the external fluids surrounding the pump housing.Type: GrantFiled: February 5, 2021Date of Patent: October 25, 2022Assignee: Dajustco IP Holdings Inc.Inventors: Peter Francis Van-De-Velde, Nicholas James Guenther
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Patent number: 11480163Abstract: A pumping system includes a head having an opening and an injection port. The head is for holding content to be forced through the injection port. A bladder is within the head. The bladder is between the content and the opening. A plunger is configured to move through the opening of the head and to apply force within the bladder. The plunger may be movable in a discharge stroke to force the bladder against the content and thereby force the content through the injection port.Type: GrantFiled: August 27, 2018Date of Patent: October 25, 2022Assignee: SAUDI ARABIAN OIL COMPANYInventor: Amer A. Al-Dhafiri
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Patent number: 11473586Abstract: A thin cooling fan includes a fan shell, a motor, a plurality of blades, and a PCB. The fan shell comprises a base plate and a shell cover which cover to each other to form an inner space. The base plate has a first surface facing toward the inner space and a second surface having a receiving space and opposite to the first surface. The motor is combined in the inner space. The blades are disposed in the inner space and rotated by the motor. The PCB is disposed in the receiving space and flush with the second surface. Thus, the whole thickness of the cooling fan is reduced and the flow channel design in the inner space is not affected.Type: GrantFiled: October 10, 2019Date of Patent: October 18, 2022Assignee: DELTA ELECTRONICS, INC.Inventors: Cheng-Wei Chen, Hsiang-Jung Huang