Patents Examined by Bryan Lettman
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Patent number: 9777717Abstract: A double-acting refrigerant compressor includes a piston freely guided on two cylinder portions arranged opposite to each other and being immobile relative to each other. The piston includes a flow channel extending internally through the piston. Each cylinder portion and the piston include, along the flow channel, respectively at least one back-check valve. The back-check valves are arranged in such a manner that their flow directions are unidirectional.Type: GrantFiled: January 5, 2012Date of Patent: October 3, 2017Assignee: Inficon GMBHInventor: Werner Schmidt
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Patent number: 9759209Abstract: A sealed compressor housing includes a tubular top cover and a tubular lower housing each with an elliptical horizontal cross section that can be snap-fitted together. Major and minor axial centerlines of the top cover and the lower housing respectively coincide with each other. A terminal pin is provided on the lower housing and is disposed axially symmetrical about a centerline of the terminal pin. A portion of the top face on the side of the terminal pin and a front side of the top face are higher than a rear side thereof. A bottom outer surface of the lower housing has a smooth ellipsoid shape. An angle is formed between the centerline of the terminal pin and the major axial centerlines.Type: GrantFiled: December 30, 2013Date of Patent: September 12, 2017Assignee: HUANGSHI DONGBEI ELECTRICAL APPLIANCE CO., LTD.Inventors: Zeyun Fang, Lijian Cao, Xinnan Wang, Bin Gan, Liangfu Cheng, Xi Chen
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Patent number: 9745973Abstract: A hermetic compressor includes a closed vessel for storing lubricating oil, an electric-driving element, and a compressing element driven by the electric-driving element. The compressing element includes a cylinder block forming a compression chamber, a piton that reciprocates inside the compression chamber, and an oiling device for supplying the lubricating oil to an outer circumference of the piston. A first oil groove is concavely formed on the outer circumference of the piston, and a second oil groove is concavely formed on a side opposite to the compression chamber relative to the first oil groove. The second oil groove has a spatial volume same or greater than that of the first oil groove. An expanded clearance portion is provided such that a clearance between the piston and the cylindrical hole portion broadens from a top dead point to a bottom dead point.Type: GrantFiled: June 18, 2014Date of Patent: August 29, 2017Assignee: PANASONIC CORPORATIONInventors: Ko Inagaki, Akira Nakano, Yoshinori Ishida, Ichiro Morita
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Patent number: 9732732Abstract: A system for generating energy from wind induced by an aircraft is provided. The system includes one or more wind turbines configured to generate electrical power by capturing wind induced by the aircraft. Each of the one or more wind turbines include a rotor mounted for rotation about an axis, and a plurality of blades coupled to the rotor.Type: GrantFiled: March 4, 2013Date of Patent: August 15, 2017Assignee: The Boeing CompanyInventor: Brett Mukherjee Hoffstadt
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Patent number: 9732746Abstract: A fluid end of a pump includes a casing defining a plurality of working spaces that each include an inlet bore, an outlet bore, a plunger bore, and a valve cover bore. The bores define a cross bore intersection space, and an inlet bore transition area at the intersection of the inlet bore and the cross bore intersection space. A first V-shaped groove and a second V-shaped groove are formed adjacent the inlet bore transition area with each extending partially around the inlet bore axis. An inlet spring retainer includes first and second engagement portions and is orientable in a first orientation in which the retainer is movable from the inlet bore to the plunger bore and a second orientation in which the retainer engages the first and second V-shaped grooves to inhibit movement of the retainer from the inlet bore to the cross bore intersection space.Type: GrantFiled: May 16, 2016Date of Patent: August 15, 2017Assignee: GARDNER DENVER, INC.Inventors: Arun Nahendra Raj Chandrasekaran, Christopher Douglas Degginger, Gregory David Hash
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Patent number: 9724453Abstract: A breast pump system comprising a solenoid valve includes a power source that is arranged to supply electrical power to the solenoid valve so as enable the solenoid valve to move between first and second positions. The breast pump system also includes a controller configured to detect a change in inductance of the solenoid valve that is indicative of the solenoid valve moving from first to second position and a control action in which the vacuum pump is stopped.Type: GrantFiled: June 26, 2013Date of Patent: August 8, 2017Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Arnold Aalders, Hassan El Barakat, Theodorus Johannes Adrianus Maria Den Bekker, Cornelis Johannes Janson
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Patent number: 9726162Abstract: A submersible, water circulation system for enclosed tanks such as used by municipalities, fire districts, and industries. The system includes a driving unit having a shell extending along an axis with a pump supported within the shell. The shell has at least one inlet and at least one outlet and is positionable on the floor of the tank with the outlet facing upwardly. The upwardly facing outlet is preferably a thin, upwardly facing, elongated slot and creates a thin, substantially planar discharge of water therethrough that is directed upwardly toward the surface of the body of water. The substantially planar discharge presents a very large surface area for its volume and induces water adjacent the outside of the shell of the driving unit to move upwardly with it toward the surface of the body of water.Type: GrantFiled: December 15, 2014Date of Patent: August 8, 2017Assignee: Medora Environmental, Inc.Inventors: Douglas P. Walter, Joel J. Bleth, Willard R. Tormaschy, Corey M. Simnioniw, Jonathan L. Zent
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Patent number: 9726199Abstract: An airflow fan accessory comprising an accessory having a scented fabric and a fastening mechanism located along the outer edge of the scented fabric. In a preferred embodiment, the accessory may be easily attached to and detached from the fan blade enclosure of any typical airflow fan. Upon air flow through the fan and airflow fan accessory, a pleasant scent may be imparted to the room via release of scent from the scented fabric component.Type: GrantFiled: March 15, 2013Date of Patent: August 8, 2017Inventor: Scott David Hammer
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Patent number: 9726084Abstract: A compressor for a gas turbine engine having a bleed air recirculation system includes a plurality of bleed holes extending through the shroud at a first axial location thereon substantially adjacent the blade tips. The bleed holes have a closed outer perimeter along their complete length. An annular bleed cavity surrounds the shroud and is in communication with outlet openings of the bleed holes. The bleed holes provide communication between the main gas flow passage and the bleed cavity. The bleed cavity includes exit passages having outlets disposed in the shroud at a second axial location which is upstream of both the first axial location and the leading edge of the blades of the rotor. Bleed air is passively bled from the main gas flow passage via the bleed holes, recirculated through the bleed cavity and re-injected back into the main gas flow passage at the second axial location.Type: GrantFiled: March 14, 2013Date of Patent: August 8, 2017Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Hien Duong, Jason Nichols, Peter Townsend, Vijay Kandasamy
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Patent number: 9726158Abstract: A swash plate type piston pump includes a plurality of pistons, a cylinder block including a plurality of cylinders for housing the pistons, a swash plate for reciprocating the pistons to expand and contract volume chambers of the cylinders with the rotation of the cylinder block, a biasing mechanism for biasing the swash plate in a direction to increase a tilting angle, a first control pin for driving the swash plate in a direction to reduce the tilting angle according to a first load pressure, and a second control pin for driving the swash plate in a direction to reduce the tilting angle according to a second load pressure. The first and second control pins are connected in series.Type: GrantFiled: November 21, 2012Date of Patent: August 8, 2017Assignee: KYB CorporationInventor: Tetsuya Iwanaji
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Patent number: 9719528Abstract: In a bubble lift system, a pressurized chamber at an upper end portion of a riser pipe applies a pressure to an upper portion inside the riser pipe to suppress an increase in the volume ratio of bubbles to a fluid mixture rising inside the riser pipe in a shallow water region. The upper end of the riser pipe is not opened to the atmosphere but is inserted into the pressurized chamber under a high pressure to thereby prevent expansion of the bubbles and gas. In addition, a deaerator for discharging bubbles separated by a centrifugal force is also provided in a middle portion of the riser pipe in a shallow water region to distribute the bubbles more evenly inside the whole riser pipe. The bubble lift system and a bubble lift method thus provided are efficient and employable even in a deep water region.Type: GrantFiled: July 27, 2012Date of Patent: August 1, 2017Assignee: MODEC, INC.Inventors: Takuju Nakamura, Masaki Kawase
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Patent number: 9714661Abstract: A vacuum pump which, among others, has a lubricated ball bearing for supporting a rotor shaft of a motor, a bearing holder for holding the lubricated ball bearing, a first labyrinth seal provided between a motor arrangement space and a bearing arrangement space, and a balance adjustment member installed at a position of the rotor shaft to face the bearing holder and used for balance adjustment of a rotating body. A second concave and convex part to be fitted to the first concave and convex part forming the first labyrinth seal. By reducing a gap of the bearing arrangement space, the space in which the oil vapor is filled is reduced. Therefore, a moving amount of the gas, and thus, the decrease in the base oil of the lubricant can be suppressed, thereby extending the lubricating life.Type: GrantFiled: July 31, 2013Date of Patent: July 25, 2017Assignee: Shimadzu CorporationInventors: Osamu Ashida, Kohei Oue
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Patent number: 9714579Abstract: An airfoil blade (2) of a bearingless rotor of a helicopter. Said airfoil blade (2) has a pitch axis from a tip end to a root end and said root end is provided with junction means for a separable junction arrangement of said airfoil blade (2) with a flexbeam head (13), and a control cuff (4, 22). Said junction arrangement is mechanical with removable fasteners respectively removable connecting said root end of said airfoil blade (2) to said control cuff (4, 22) and said flexbeam head (13). Said root end comprises at least two openings (7, 8) being asymmetric with regard to said pitch axis.Type: GrantFiled: March 14, 2013Date of Patent: July 25, 2017Assignee: AIRBUS HELICOPTERS DEUTSCHLAND GMBHInventors: Gerald Kuntze-Fechner, Markus Bauer, Martin Ortner
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Patent number: 9709055Abstract: A mechanism for reducing pressure pulsation includes a pair of metal dampers formed by joining two disk-shaped metal diaphragms over an entire circumference and forming a hermetically sealed space inside a joined portion. Gas is sealed in the aforementioned hermetically sealed space of the damper, and a pair of pressing members give pressing forces to both outer surfaces of the aforementioned metal dampers at a position at an inner diameter side from the joined portion. The mechanism is unitized, with the pair of pressing members being connected in a state in which they sandwich the metal damper.Type: GrantFiled: September 26, 2014Date of Patent: July 18, 2017Assignee: Hitachi Automotive Systems, Ltd.Inventors: Satoshi Usui, Shingo Tamura, Katsumi Miyazaki, Sunao Takahashi, Masayuki Suganami, Minoru Hashida
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Patent number: 9709041Abstract: An outer circumferential surface of a trunnion shaft includes a sliding contact region that has a circular arc shape as viewed along a slanting axis line and is substantially brought into contact with an inner circumferential surface of the bearing portion in a rotatably sliding manner, and at least one suction groove that forms a pocket portion between the suction groove and the inner surface of the bearing portion. The pocket portion is opened to an inner space of housing on at least one side in an axis line direction of the trunnion shaft.Type: GrantFiled: November 20, 2013Date of Patent: July 18, 2017Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.Inventors: Toshifumi Yasuda, Yasuhisa Mochizuki, Hideaki Syokita, Hidemi Harada, Masaki Watanabe, Koji Sakata
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Patent number: 9700660Abstract: 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: GrantFiled: January 5, 2015Date of Patent: July 11, 2017Assignee: DEKA Products Limited PartnershipInventors: Jason A. Demers, Michael J. Wilt, Kevin L. Grant, James D. Dale, Brian D. Tracey
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Patent number: 9695832Abstract: An integrated circuit for controlling operation of a motor of a fan assembly. The fan assembly includes a housing and a fan. The motor is in the housing. The housing is void of sensors. The motor is configured to rotate the fan. The integrated circuit includes a detection module and a first control module. The detection module is separate from the fan assembly. The detection module is configured to detect a voltage induced in a first coil of the motor or a back electromotive force received from the first coil of the motor. The first control module is configured to receive a control signal from a second control module and control the operation of the fan based on (a) the control signal, and (b) the voltage induced in the first coil of the motor or the back electromotive force. The second control module is separate from the integrated circuit.Type: GrantFiled: August 19, 2014Date of Patent: July 4, 2017Assignee: Marvell World Trade Ltd.Inventors: Ravishanker Krishnamoorthy, Foo Leng Leong, Edy Susanto, Yayue Zhang, Cheng Yong Teoh
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Patent number: 9689396Abstract: Methods and systems for monitoring a variable-speed pump system to detect a blockage condition. A value indicative of pump performance is sensed and a pump load coefficient is calculated. The value of the pump load coefficient does not change substantially due to changes in pump speed and is indicative of a blockage of a drain in a liquid holding tank. A blockage of the drain is detected based at least in part on the calculated pump load coefficient and the operation of the pump is adjusted based on the detected blockage.Type: GrantFiled: October 30, 2012Date of Patent: June 27, 2017Assignee: Regal Beloit America, Inc.Inventors: Brian Thomas Branecky, Yilcan Guzelgunler
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Patent number: 9677554Abstract: A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes.Type: GrantFiled: March 30, 2015Date of Patent: June 13, 2017Assignee: DEKA Products Limited PartnershipInventors: Michael J. Wilt, Kevin L. Grant, James D. Dale, Jason A. Demers, Brian D. Tracey
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Patent number: 9670919Abstract: A plural component pump system is provided for delivering plural liquid components at a selected ratio. The pump system includes a first brushless DC motor configured to drive a first pump that pumps a first liquid component to an output and a second brushless DC motor configured to drive a second pump that pumps a second liquid component to the output. The pump system includes a first controller configured to control the first motor and a second controller configured to control the second motor. The pump system also includes a communication interface between the first controller and the second controller. The first controller is configured to send a signal to the second controller using the communication interface and the second controller is configured to control the second motor based on the signal to deliver the first and second liquid components to the output at the selected ratio.Type: GrantFiled: October 31, 2011Date of Patent: June 6, 2017Assignee: Wagner Spray Tech CorporationInventors: Joseph W. Kieffer, Jeffrey Scott Jerdee
