Patents Examined by Devon C. Kramer
  • Patent number: 8894389
    Abstract: A utility pump is provided featuring a housing and battery configuration, where the housing is configured with a series configuration of integral pumps, and also configured with a battery receiving portion having electrical terminals for receiving power for providing to the series configuration of the integral pumps, and where the battery has a protruding portion with corresponding electrical terminals configured to contact the electrical terminals to provide power to the series configuration of the integral pumps when the protruding portion of the battery is inserted into the battery receiving portion of the housing and rotated in one direction to an “ON” position, and also configured not to contact the electrical terminals when the battery is not rotated to the “ON” position.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: November 25, 2014
    Assignee: Flow Control LLC.
    Inventors: Humberto V. Meza, Randall H. Moormann, Mark F. Ingersoll, Jeffrey B. Schopperle, Joel A. Kenney
  • Patent number: 8896144
    Abstract: A wind turbine energy storage system includes a hollow wind turbine tower shaft having a top end and a bottom end covered by top and bottom end caps respectively to form a tank. A compressor is coupled to the wind turbine for compressing air into the tank through a high pressure pipe and valve assembly. The compressed air stored in the tank can be released on demand or on a fixed schedule. A method of storing energy in a wind turbine is also disclosed.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: November 25, 2014
    Inventors: Carlos Wong, Livia Wong, Zhaohui Xiong
  • Patent number: 8827659
    Abstract: In an oil supply apparatus, a valve body includes first and second radially protruding lands, and a small-diameter portion continuously connecting the first and second lands and having a diameter smaller than at least the outer diameter of the first and second lands. Rotational speeds of a rotor are set as first, second and third rotational ranges in the ascending order. In the first rotational range, work oil from a second discharge port is fed to a first oil passage via the small diameter portion. In the second rotational range, work oil from the second discharge port is fed to a return oil passage via the small diameter portion. In the third rotational range after the second oil passage is blocked relative to the return oil passage by the second land, work oil from the second discharge port is fed to the first oil passage.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: September 9, 2014
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventor: Yoshito Uno
  • Patent number: 8668477
    Abstract: A series-connected fan unit includes a first fan frame, a second fan frame, a first motor, a second motor and two impellers. The first fan frame has a first base and a first positioning member coupled with the first base. The second fan frame is connected to the first fan frame in series and has a second base and a second positioning member coupled with the second base. The first motor is disposed in the first base and has a first circuit board coupled with the first positioning member. The second motor is disposed in the second base and has a second circuit board coupled with the second positioning member. The two impellers are respectively coupled with the first motor and the second motor, and an insulation area is formed between the first circuit board and the second circuit board.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: March 11, 2014
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Zhe-Hao Wu, Cheng-Te Liu
  • Patent number: 8662858
    Abstract: A system may include a PWM generator and control logic. The PWM generator is configured to generate a PWM signal having a duty cycle dependent on a duty cycle value generated by the control logic. The control logic is configured to generate the duty cycle value to have a piecewise linear relationship with temperature such that at least two of a plurality of linear segments defined by the piecewise linear relationship have different slopes. In some embodiments, the piecewise linear relationship may be continuous.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: March 4, 2014
    Assignee: Standard Microsystems Corporation
    Inventors: Eileen M. Marando, Robert W. Schoepflin
  • Patent number: 8596997
    Abstract: A membrane pump (1) has a pump housing, a membrane (4), which is mounted to the pump housing and delimits a pump chamber (8) inside the pump housing, an inlet (5) and an outlet (6) for feeding medium into and out from the pump chamber, and an actuating member (7) for moving the membrane back and forth between a first and a second position. The membrane, the inlet and the outlet are arranged in a first part (2) of the pump housing, the first part being detachably connected to a second part (3) of the pump housing, in which the actuating member is arranged. The membrane is detachably connected to the actuating member by a magnetic coupling, which has a first magnetic coupling part (9) fixed to the membrane and a corresponding second magnetic coupling part (10) fixed to the actuating member.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: December 3, 2013
    Assignee: Xavitech AB
    Inventor: Jonathan Grip
  • Patent number: 8313308
    Abstract: A medical pump with a closed loop stroke feedback system and method, for use with a pumping chamber, for example in a cassette, is disclosed. The pump includes a pumping element that intermittently pressurizes a pumping chamber during a pumping cycle. A pressure sensor detects the pressure exerted by the pumping element on the pumping chamber. A position sensor detects the position of the pumping element. A processing unit processes pressure data from the pressure sensor and position data from the position sensor to determine a calculated stroke volume of the pump for a pump cycle, and to adjust a stroke frequency of the pump to compensate for variation in the stroke volume.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: November 20, 2012
    Assignee: Hospira, Inc.
    Inventors: Michael W. Lawless, Marwan A. Fathallah, Mansour A. Saleki, Brian A. Kidd, Kent D. Abrahamson, Robert P. Cousineau, Robert R. Boyd, Howard L. Greene
  • Patent number: 8292594
    Abstract: Certain types of reciprocating positive-displacement pumps (which may be referred to hereinafter as “pods,” “pump pods,” or “pod pumps”) are used to pump fluids, such as a biological fluid (e.g., blood or peritoneal fluid), a therapeutic fluid (e.g., a medication solution), or a surfactant fluid. The pumps may be configured specifically to impart low shear forces and low turbulence on the fluid as the fluid is pumped from an inlet to an outlet. Such pumps may be particularly useful in pumping fluids that may be damaged by such shear forces (e.g., blood, and particularly heated blood, which is prone to hemolysis) or turbulence (e.g., surfactants or other fluids that may foam or otherwise be damaged or become unstable in the presence of turbulence).
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: October 23, 2012
    Assignee: DEKA Products Limited Partnership
    Inventors: Brian Tracey, Larry B. Gray, Jason A. Demers, James D. Dale, N. Christopher Perry, Michael J. Wilt, Scott A. Leonard
  • Patent number: 8267666
    Abstract: An apparatus includes a valve housing having an inlet port, a first chamber with a first outlet port, and a second chamber with a second outlet port. A first valve opens between the inlet port and the first chamber under a first level of pneumatic pressure at the inlet port. A second valve opens between the first chamber and the second chamber under a second, greater level of pneumatic pressure in the first chamber. A third valve opens between the second chamber and the first chamber under a third level of pneumatic pressure in the second chamber, with the third level being less than the first level.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: September 18, 2012
    Assignee: Campbell Hausfeld/Scott Fetzer Company
    Inventors: Christopher Gruber, David O. Shumate, James W. Happe, Jr., Steven R. Salmons, Jeffrey P. VanHorn
  • Patent number: 8267669
    Abstract: A magnetic induction pump for pumping molten metal. The pump includes a motor and a shaft operatively connected to the motor. The pump further includes at least one bipolar permanent magnet operatively connected to the shaft and a conduit for the passage of molten metal. The motor rotates the shaft and magnet about the conduit inducing eddy currents in the molten metal in the conduit which react with the moving magnetic field to produce force to pump the metal through the conduit with the metal coming into contact with only an interior surface of the conduit.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: September 18, 2012
    Assignee: Hazelett Strip-Casting Corporation
    Inventor: Valery G. Kagan
  • Patent number: 8257057
    Abstract: A variable displacement vane pump includes a rotor, a swingable annular cam ring receiving therein the rotor, a pump body encasing the cam ring and rotor, and a pressure plate which is disposed between an end wall of the pump body and the rotor and which includes a backup surface and a sliding surface formed with an inlet port, an outlet port and a backpressure groove. The vane pump further includes a seal member which is provided between the backup surface of the pressure plate and the end wall of the pump body, and which includes an inlet-side segment extending on the radial inner side of the inlet port and the radial outer side of the backpressure groove, and an outlet-side segment extending on the radial outer side of the outlet port.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: September 4, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Shigeaki Yamamuro, Hideo Konishi, Fusao Semba
  • Patent number: 8257054
    Abstract: A peristaltic pump assembly includes a pump body including a mounting pin coupled thereto. A removable cassette is slidably received on the mounting pin and is secured to the pump body via a retaining feature. The mounting pin is also configured to allow the removable cassette to rotate into and/or out of an installed position, or to position(s) therebetween.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: September 4, 2012
    Assignee: Curlin Medical Inc.
    Inventors: Robert R. Voltenburg, Jr., Loren M. Thompson
  • Patent number: 8246319
    Abstract: The reciprocating pump for performing a pumping action by reciprocating an individual reciprocating member inside a plurality of cylinder sections arranged in parallel includes a seal case in which a cylinder section is formed and which functions as an independent pressure-resistant container; and a suction valve and a discharge valve in which a valve chamber is formed individually and each of which functions as an independent pressure-resistant container. The suction valve and the discharge valve are coupled so as to sandwich two planar sections from a direction perpendicular to a direction in which a plurality of cylinder sections are arranged in parallel in a state in which each of the suction valve and the discharge valve abuts against the respective one of the two planar sections of an external surface of a small diameter section at a front end side formed in the seal case, and the valve chamber is communicatively connected to the cylinder section.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: August 21, 2012
    Assignee: Maruyama Mfg. Co., Inc.
    Inventor: Toshiaki Ohnishi
  • Patent number: 8246322
    Abstract: A positioning and retaining element has a cylindrical rotary belt of substantially constant thickness, having an inner diameter substantially equal to the outer diameter of the stator to be capable of being mounted substantially coaxial clamped about the stator. The positioning and retaining element also has a number of support members projecting radially from the belt outwards and having each a support surface on the housing of the compressor, the support surfaces being located on the lateral surface of a fictitious rotary cylinder of same axis as the other belt and of diameter substantially equal to the inner diameter of the housing, such that the positioning and retaining element can be mounted clamped inside the housing.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: August 21, 2012
    Assignee: Danfoss Commercial Compressors
    Inventors: David Genevois, Pierre Ginies
  • Patent number: 8246318
    Abstract: Provided is a water-cooled air compressor which is capable of restraining lowering of the performance of a plate type compressor for heat-exchanging compressed air from a compressor body, with cooling water due to clogging of gaps between plates in the heat-exchanger by dust or the like, incorporating a first solenoid valve and a second solenoid valve connected respectively in a cooling water supply pipe line and a cooling water discharge pipe line of the heat-exchanger, an air feed pipe line connecting between a compressed air supply pipe line on the outlet side of the heat-exchanger and the cooling water discharge pipe line, a third solenoid valve and a check valve connected in the air feed pipe line, a discharge pipe line connected in a discharge pipe line 18 so as to branch therefrom, a fourth solenoid valve connected in the discharge pipe line, and a control device for controlling opening and closing of the first to fourth solenoid valves.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: August 21, 2012
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Hideharu Tanaka, Masahiko Takano, Akihiro Nagasaka
  • Patent number: 8241012
    Abstract: In a structure for mounting a filter in a compressor, a mounting member is connected to the filter. A receiving hole is formed in a housing of the compressor for receiving therein the mounting member. A first fitting portion is formed on an inner circumferential surface of a holding portion of the filter. A second fitting portion is formed on an outer circumferential surface of the mounting member for having fitting relation to the first fitting portion for an overlap distance in a radial direction of the receiving hole. When the mounting member is received in the receiving hole with the fitting relation, the filter is disposed in a fluid passage of the housing. A clearance having a dimension is formed between an outer circumferential surface of the holding portion and an inner circumferential surface of the receiving hole. Minimum value of the dimension is smaller than the overlap distance.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: August 14, 2012
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Yoshinori Inoue, Hiroyuki Nakaima, Yoichi Takashima, Kazuya Shinmyo, Atsuo Sakagami, Masaya Sakamoto, Satoshi Umemura, Naoki Koeda, Yuji Hashimoto, Hisaya Kondo
  • Patent number: 8241014
    Abstract: A screw compressor includes a housing, a motor stator, a motor rotor, a helical screw rotor, a motor rotor stop, a screw fastener, and a third bearing. The helical screw rotor includes an extension section, a motor coupling section, a first supporting section, a helical screw section, and a second supporting section. The motor rotor stop includes two flange portions, wherein one flange portion is sleeved with the extension section and abuts axially upon the effective sensing section of the motor rotor. The third bearing is interposed between the other flange portion and the housing cap. The screw fastener extends through the motor rotor stop and is threadedly engaged into a thread hole of the helical screw rotor and then biases axially upon the motor rotor stop. Therefore, the motor rotor is secured more firmly, and that a compressor shaft maintains a stable running.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: August 14, 2012
    Assignee: Hanbell Precise Machinery Co., Ltd.
    Inventors: Ming Hsin Liu, Yu Hua Huang
  • Patent number: 8241011
    Abstract: A fan includes a first motor having a first rotor and a second motor having a second rotor which is rotationally connected to the first rotor. The fan further comprises a first impeller which, when driven by the first motor, rotates along a first direction and creates a main flow along a direction perpendicular to the periphery thereof and a tangential flow along the tangent thereof. The fan also includes a second impeller which, when driven by the second motor, rotates along the reverse direction of the first direction and impel the tangential flow to the direction perpendicular to the periphery of the first impeller.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: August 14, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chao-Jui Huang
  • Patent number: 8241007
    Abstract: An oil-injection screw compressor includes a blow-off valve disposed on the discharge side of the compressor body and capable of releasing a quantity of air beyond the discharge capacity of the compressor body when operating of the motor at the minimum number of revolutions; a suction non-return valve which, disposed on the suction side of the compressor body, is closed when it is at a stop; and a pressure sensor for detecting the discharge side pressure of the compressor body; and, a controller which, at the time of operation of the motor at the minimum number of revolutions, opens the blow-off valve when the discharge side pressure P detected by the pressure sensor has risen to a prescribed upper limit Pu and closes the blow-off valve when it has fallen to a prescribed control pressure Po.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: August 14, 2012
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventor: Hideharu Tanaka
  • Patent number: 8235684
    Abstract: An air pump includes a sliding member disposed movably a housing and cooperating with the housing and a partition casing in the housing to define first and second chambers thereamong. The air pump is operable between a deflation state, where air from an inflatable product connected to an air nozzle on the housing into an air impeller chamber in the partition casing through the first chamber and an air inlet in the partition casing is driven by rotation of an air impeller to flow outside the air pump through an air outlet in the partition casing, the second chamber and an first vent unit in housing, and an inflation state, where air flowing from the outside into the air impeller chamber through a second vent unit in the sliding member, an air pipe of the sliding member and the air inlet is driven to flow into the inflatable product through the air outlet, the first chamber and the air nozzle.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: August 7, 2012
    Inventors: Rong-Jyh Song, Tsung-Ping Yen