Patents by Inventor Stanley R. Grant

Stanley R. Grant has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Motor cooling in a refrigeration system
    Patent number: 6032472
    Abstract: The expanded flow through a heat exchanger type economizer is controlled by an electronic expansion valve and is supplied to the motor of a motor compressor to cool the motor. The electronic expansion valve is controlled by a microprocessor responsive to the temperature of the motor winding sensed by a thermistor.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: March 7, 2000
    Assignee: Carrier Corporation
    Inventors: Anton D. Heinrichs, Stanley R. Grant
  • Bearings and a method for mounting them in screw compressor
    Patent number: 5975867
    Abstract: Rolling element bearings capable of both axial and radial restraint are readily removably mounted on the shaft of each screw rotor so as to allow a clearance type radial fit between the bearing and shaft. A washer engages the inner race of the bearing which also engages a shim. A bolt squeezes the inner race between the washer and shim to secure the bearing in place while the shim thickness/height determines the position of the rotor within the casing.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: November 2, 1999
    Assignee: Carrier Corporation
    Inventors: Stanley R. Grant, Peter T. Schutte
  • Combination valve for screw compressors
    Patent number: 5807081
    Abstract: Normally closed valve structure is located in a fluid path between the suction and discharge sides of a compressor. The valve structure opens upon a small pressure differential when the higher pressure is in the normal suction side which is indicative of reverse operation. Additionally, relief valve structure opens when the discharge pressure becomes excessive.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: September 15, 1998
    Assignee: Carrier Corporation
    Inventors: Peter T. Schutte, Stanley R. Grant, Michael G. Field
  • Bearing and a method for mounting them in screw compressor
    Patent number: 5722163
    Abstract: Rolling element bearings capable of both axial and radial restraint are readily removably mounted on the shaft of each screw rotor so as to allow a clearance type radial fit between the bearing and shaft. A washer engages the inner race of the bearing which also engages a shim. A bolt squeezes the inner race between the washer and shim to secure the bearing in place while the shim thickness/height determines the position of the rotor within the casing.
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: March 3, 1998
    Inventors: Stanley R. Grant, Peter T. Schutte