Patents Examined by Michael Koczo
  • Patent number: 7494327
    Abstract: The present invention is directed to a portable air compressor having a storage compartment, which may be used to store air compressor accessories. A shroud which encloses a portable air compressor has a recess. The recess is at least partially covered with a cover member, which is mounted to the shroud. The recess and the cover member together define a storage compartment for storing air compressor accessories such as fittings, nozzles, and the like, and/or tools such as a wrench, or the like.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: February 24, 2009
    Assignee: Black & Decker Inc.
    Inventors: Mark A. Etter, J. Cody Stilwell, Jeff Brian Thompson, Gary D. White
  • Patent number: 7413413
    Abstract: A system is provided for attenuating tonal acoustic noise associated with a single positive displacement compressor, or multiple positive displacement compressors proximately located from each other. A controller selectably controls the rotational speed and the frequency of operation of each of the compressors. The controller controls the rotational speed of the compressors about a predetermined rotational speed, in a random manner, within the pre-selected speed band to reduce the magnitude of the central tonal acoustic frequency of the pressure pulsations and disperse the sound power over a wider acoustic bandwidth.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: August 19, 2008
    Assignee: York International Corporation
    Inventors: Harold Robert Schnetzka, E. Curtis Eichelberger, Jr., Paul Nemit, Jr.
  • Patent number: 7396214
    Abstract: A control system for a variable displacement pump. The control system is operably associated with an engine control unit for passively or actively controlling the output of the pump in response to signals from the engine control unit.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: July 8, 2008
    Assignee: BorgWarner Inc.
    Inventors: Douglas G. Hunter, Dennis Koenig
  • Patent number: 7393185
    Abstract: A pressure sensor subsystem measures the pressure within a fuel pump and outputs an under-pressure signal when the measured pressure is below a predetermined threshold pressure value. A temperature sensor subsystem measures the temperature within the fuel pump and outputs an over-temperature signal when the measured temperature is above a predetermined threshold temperature value. A timing circuit monitors the pressure sensor subsystem and the temperature sensor subsystem for output of the under-pressure and over-temperature signals and outputs a pump disconnect signal when at least one of the signals is output for a prescribed time duration. A power controller disengages power from the pump upon output of a pump disconnect signal by the timing circuit.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: July 1, 2008
    Assignee: Hydro-Aire, Inc.
    Inventors: Berardino C. Scanderbeg, Alan William Koharcheck, Peter Edward Czyl
  • Patent number: 7389582
    Abstract: A mounting bracket for a compressor. The mounting bracket includes a mounting member and an elongate bracing member. The mounting member is secured to the housing of the compressor has a central support section in substantial registry with the housing. The mounting member includes two legs which extend from opposite ends of the central support section. The first and second legs respectively include first and second distal portions. The bracing member may be secured to the mounting member with two swaged connections. The swaged connections each define an aperture through the bracing member and the mounting member. A method of mounting a compressor is also provided. The method utilizes a mounting bracket having a bracing member which is secured to a mounting member by deforming at least one of the bracing member and the mounting member into engagement with the other of the bracing member and the mounting member.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: June 24, 2008
    Assignee: Tecumseh Products Company
    Inventor: Robin G. Skinner
  • Patent number: 7377115
    Abstract: Methods of increasing lifetimes of components in a gas turbine engine. Ordinarily, components are replaced after they experience a certain number of thermal cycles, or a certain operating temperature limit is exceeded. Under one form of the invention, the components are not replaced at that time, but are subjected to increased cooling, which decreases the highest temperature reached in subsequent thermal cycles. Also, many components are replaced when acceleration of an engine falls below a target. In one form of the invention, the components are not replaced, but (1) scheduled fuel flow is increased and (2) compressor stall margin also increased, in order to attain the target acceleration.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: May 27, 2008
    Inventor: Sridhar Adibhatla
  • Patent number: 7371051
    Abstract: The present invention relates to controlled, magnetohydrodynamically-driven, fluidic networks containing a plurality of individually controlled branches. The branches consist of conduits equipped with pairs of electrodes that are controlled by electrode controllers. In operation, the network is placed within a magnetic field and potentials or currents are applied across electrode pairs within the various branches of the network in specifically determined magnitudes and polarities for specifically determined time intervals in accordance with an activation sequence that may be determined by an algorithm. Placed within a temperature gradient, at least a part of the network can act as a thermal cycler for use in biological interactions that employ temperature variations.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: May 13, 2008
    Assignee: The Trustees of the University of Pennsylvania
    Inventor: Haim H. Bau
  • Patent number: 7371057
    Abstract: Disclosed is a variable capacity scroll compressor including a stationary scroll member on which a stationary spiral wrap is formed, an orbiting scroll member on which an orbiting spiral wrap is formed, the orbiting scroll member rotating while surface-contacting the stationary scroll, a driving motor, a driving shaft for rotating the orbiting scroll member using power transmitted from the driving motor, a control chamber formed on a predetermined portion of the stationary spiral wrap, a pivotal block disposed in the control chamber, and a controller for controlling a pivotal motion of the pivotal block.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: May 13, 2008
    Assignee: LG Electronics Inc.
    Inventors: Dong Koo Shin, Hong Hee Park, Cheol Hwan Kim
  • Patent number: 7371054
    Abstract: A swash-plate compression device of the variable capacity type used in a refrigerating system of a vehicle comprises a swash-plate compressor and a control valve for autonomously adjusting the pressure in a crank chamber of the compressor. The control valve is opened and closed to introduce some of a refrigerant, which is discharged from the compressor, into the crank chamber. The opening of the control valve is controlled in accordance with a target differential pressure between the actual discharge pressure of the discharged refrigerant and the mean internal pressure of the entire compression chambers of the compressor or between the actual discharge pressure and the peak value of the internal pressure of the compression chamber so that the actual capacity of the compressor is feedback-controlled to be adjusted to a target capacity therefor.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: May 13, 2008
    Assignee: Sanden Corporation
    Inventor: Masaki Shiina
  • Patent number: 7367789
    Abstract: A pressure enclosure includes a first component having an opening, a second component coupled to the first component in a position over the opening, a third component positioned between the first and second components and covering the opening, and a load chamber defined by a space between the second and third components and configured such that pressure in the load chamber biases the third component against the first component to seal the opening. The pressure enclosure may be a cylinder of a pump for pressurizing fluid or gas, with the first component a cylinder body, the second component an end cap and the third component a valve body, with the load chamber biasing the valve body against the cylinder body.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: May 6, 2008
    Assignee: Flow International Corporation
    Inventors: Chidambaram Raghavan, Kraig T. Kostohris, Katherine M. Madden, Shawn M. Callahan, Sigurd C. Mordre, Mohamed A. Hashish, Olivier L. Tremoulet, Jr.
  • Patent number: 7367781
    Abstract: A number of micromachined devices including a micromachined pump for on-chip vacuum is provided. For example, a single-chip micromachined implementation of a Knudsen pump having one or more stages and which uses the principle of thermal transpiration with no moving parts is provided. A six-mask microfabrication process to fabricate the pump using a glass substrate and silicon wafer is shown. The Knudsen pump and two integrated pressure sensors occupy an area of 1.5 mm×2 mm. Measurements show that while operating in standard laboratory conditions, this device can evacuate a cavity to 0.46 atm using 80 mW input power. High thermal isolation is obtained between a polysilicon heater of the pump and the rest of the device.
    Type: Grant
    Filed: January 5, 2004
    Date of Patent: May 6, 2008
    Assignee: The Regents of the University of Michigan
    Inventors: Yogesh B. Gianchandani, Shamus P. McNamara
  • Patent number: 7367784
    Abstract: Oil supply device (130) for a compressor in a refrigerating system including a cylindrical piece (131) fixed to a lower end of a crankshaft (110) for rotating together with the crankshaft, a propeller (132) fitted inside of the piece for making oil to rise by a relative movement with the piece (131), and rotation prevention means (141) fitted to a bottom end of the propeller (132) for prevention of rotation of the propeller, thereby supplying an adequate amount of refrigerant oil even if the compressor, operative at a low, as well as a high speed, is operated at the low speed.
    Type: Grant
    Filed: July 28, 2001
    Date of Patent: May 6, 2008
    Assignee: LG Electronics Inc.
    Inventors: Cheal-Ki No, Kee-Joo Kim, Jai-Seong Sim
  • Patent number: 7364410
    Abstract: A pressure storage structure for use in air is disclosed.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: April 29, 2008
    Inventor: Dah-Shan Lin
  • Patent number: 7357625
    Abstract: An electrical pump adapted for use with a piston rod in an air nozzle has an electromagnetic valve board with an electromagnetic valve thereon. A Z-shaped push rod is provided to be adapted to be driven by the electromagnetic valve so as to drive the piston rod to move accordingly. The movement of the Z-shaped push rod allows air from the electrical pump to be pumped into an object to be inflated/deflated when the motor is running depending on whether the inlet or the outlet is in alignment with the nozzle assembly of the nozzle assembly.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: April 15, 2008
    Assignee: Ho Lee Co., Ltd.
    Inventor: Stanley Yen
  • Patent number: 7353745
    Abstract: A hydrostatic adjustment unit with a swash plate for adjusting the stroke of displacer pistons which are arranged in a rotating cylinder block is described. The displacer pistons each have a slider block which bears against a support face of the swash plate and is held in abutment by means of a slider block holder. The slider block-holder has a number of bores for receiving the slider blocks corresponding to the number of displacers. The slider block holder at the same time forms the rotor of a rotational speed signal transmitter for determining the rotational speed of the cylinder block.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: April 8, 2008
    Assignee: Sauer-Danfoss Inc.
    Inventors: Carsten Fiebing, Bernd Hames
  • Patent number: 7354251
    Abstract: A variable capacity rotary compressor including a hermetic casing in which a housing having first and second compression chambers is installed. A compressing unit is placed in the first and second compression chambers, and is operated to execute a compression operation in either the first or second compression chamber according to a rotating direction of a rotating shaft which drives the compressing unit. The variable capacity rotary compressor also includes a first path, a second path, and a pressure control unit. The first path connects an outlet side of the rotary compressor to an inlet of the first compression chamber. The second path connects the outlet side of the rotary compressor to an inlet of the second compression chamber. The pressure controller functions to open either the first or second path, so that a pressure of the outlet side of the rotary compressor acts on the inlet of the first or second compression chamber where the idle operation is executed.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: April 8, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung Hae Cho, Seung Kap Lee, Chun Mo Sung
  • Patent number: 7351043
    Abstract: A substantially horizontal compressor including a housing having a main body portion with an open end. An end cap is secured to the main body portion with the end cap being provided with a plurality of apertures. The hermetic terminal body of the compressor is sealably fitted into one of the plurality of apertures located in the end cap. One of the apertures is sealably fitted with a heater well in which a substantially cylindrical heater element is removably received. A third aperture may be provided in the end cap in which a sight glass is sealably secured for checking the oil level in the oil sump. An indentation is formed in the end cap to increase the rigidity of the end cap. The proximity of the terminal assembly and heater well allows the wiring therefor to be part of the same wiring harness.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: April 1, 2008
    Assignee: Tecumseh Products Company
    Inventors: David K Haller, Robin G Skinner
  • Patent number: 7347673
    Abstract: A fluid machine is served as an expansion device and a compression device. The fluid machine compresses gas in an operation chamber upon functioning as the compression device. The fluid machine expands the gas in the operation chamber upon functioning as the expansion device. The fluid machine includes a movable discharge valve served as a differential pressure regulating valve that discharges the gas from the operation chamber when the fluid machine functions as the compression device. The discharge valve is moved to a non-operation position where the discharge valve fails to function as the differential pressure regulating valve when the fluid machine functions as the expansion device.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: March 25, 2008
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Akihito Yamanouchi, Masahiro Kawaguchi, Masao Iguchi, Xiaoliang Wang, Satoshi Umemura
  • Patent number: 7343745
    Abstract: A gas turbine combustor has a combustion chamber into which fuel and air are supplied, wherein the fuel and the air are supplied into said combustion chamber as a plurality of coaxial jets.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: March 18, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Inoue, Tomomi Koganezawa, Nariyoshi Kobayashi, Isao Takehara
  • Patent number: 7344362
    Abstract: In a turbocharger (1), comprising a turbine (2) and a compressor (3) connected to the turbine (2), the turbine (2) contains a turbine wheel (4) and the compressor (3) contains a compressor wheel (7) which are connected to one another by means of a shaft (10) and are arranged in a housing (5, 9, 16). During operation, if the compressor wheel (7) separates from the shaft (10), an axial force acts on the turbine wheel (4) and the shaft (10) connected thereto. A means (22, 25) for axially locking the shaft and the turbine wheel connected thereto in the housing (5, 9, 16) is arranged on the shaft (10) connected to the turbine wheel (4).
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: March 18, 2008
    Assignee: ABB Turbo Systems AG
    Inventors: Adrian Kopp, Marco Gartmann, Tobias Gwehenberger