Patents by Inventor Anton D. Heinrichs

Anton D. Heinrichs 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).

  • Compressor protection
    Patent number: 6041605
    Abstract: Responsive to a request for refrigeration, a start up sequence is initiated and, if start up is achieved, a number of motor and compressor parameters of operation are sensed for controlling and protecting the compressor. Depending upon the nature of the sensed conditions, if necessary, the motor, and thereby the compressor, is either disabled or corrective action is initially taken to bring the parameters within an acceptable range. If corrective action is ineffective, the motor and thereby the compressor, is disabled.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: March 28, 2000
    Assignee: Carrier Corporation
    Inventor: Anton D. Heinrichs
  • 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
  • Economizer control for two-stage compressor systems
    Patent number: 5582022
    Abstract: In a refrigeration system having low and high stage compressors and a subcooler or economizer, economizer gas is selectively supplied to the compressor motors for cooling and to the suction of the high stage to increase capacity. By selectively controlling the delivery of the economizer gas, efficiency of the refrigeration system is increased.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: December 10, 1996
    Assignee: Carrier Corporation
    Inventors: Anton D. Heinrichs, Peter P. Narreau
  • Electronic control of liquid cooled compressor motors
    Patent number: 5475985
    Abstract: Liquid refrigerant is injected into the motor of a motor-compressor to cool the motor. Refrigerant is also injected to control the discharge temperature of the compressor. The refrigerant for controlling the discharge temperature may be either excess refrigerant for cooling the motor or refrigerant injected into the compressor under the control of a thermal expansion valve.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: December 19, 1995
    Assignee: Carrier Corporation
    Inventors: Anton D. Heinrichs, Peter P. Narreau
  • Compressor with integral filter
    Patent number: 5318411
    Abstract: The filter of a compressor is located in the casing of the compressor. The fluid path includes passages in the casing such that brazed connections are not required between the filter and the parts requiring lubrication.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: June 7, 1994
    Assignee: Carrier Corporation
    Inventors: Anton D. Heinrichs, Barry A. Cavanaugh