Patents by Inventor Mario Matkowitch

Mario Matkowitch 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).

  • Apparatus for servicing refrigeration systems
    Patent number: 6247325
    Abstract: Portable apparatus for servicing a refrigeration system having a refrigerant containing an oil lubricant. The apparatus includes a support frame, a modular housing supported by the frame and defining internal accumulator, condenser, storage, and high and low pressure filter chambers, and a control plate assembly having a plurality of flow passages enabling flow communication between the various chambers. The control plate is adopted for connection to the refrigeration system being serviced, and has control valves operative to control flow of refrigerant through the passages to and between the internal chambers. A processor controls the control valves in a manner enabling selective recovery, evacuation, charging and/or flushing of the refrigerant of the refrigeration system.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: June 19, 2001
    Assignee: Skye International, Inc.
    Inventors: Robert L. Muston, Mario Matkowitch
  • Apparatus for servicing refrigeration systems
    Patent number: 5806328
    Abstract: Portable apparatus for servicing a refrigeration system having a refrigerant containing an oil lubricant. The apparatus includes a support frame, a modular housing supported by the frame and defining internal accumulator, condenser, storage, and high and low pressure filter chambers, and a control plate assembly having a plurality of flow passages enabling flow communication between the various chambers. The control plate is adopted for connection to the refrigeration system being serviced, and has control valves operative to control flow of refrigerant through the passages to and between the internal chambers. A processor controls the control valves in a manner enabling selective recovery, evacuation, charging and/or flushing of the refrigerant of the refrigeration system.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: September 15, 1998
    Assignee: Environmental Products Amalgamated Pty. Ltd.
    Inventors: Robert L. Muston, Mario Matkowitch
  • Apparatus for servicing refrigeration systems
    Patent number: 5533359
    Abstract: Portable apparatus for servicing a refrigeration system having a refrigerant containing an oil lubricant. The apparatus includes a support frame, a modular housing supported by the frame and defining internal accumulator, condenser, storage, and high and low pressure filter chambers, and a control plate assembly having a plurality of flow passages enabling flow communication between the various chambers. The control plate is adopted for connection to the refrigeration system being serviced, and has control valves operative to control flow of refrigerant through the passages to and between the internal chambers. A processor controls the control valves in a manner enabling selective recovery, evacuation, charging and/or flushing of she refrigerant of the refrigeration system.
    Type: Grant
    Filed: April 6, 1994
    Date of Patent: July 9, 1996
    Assignee: Environmental Products Amalgamated Pty. Ltd.
    Inventors: Robert L. Muston, Mario Matkowitch
  • Apparatus for servicing refrigeration systems
    Patent number: 5367888
    Abstract: Portable apparatus for servicing a refrigeration system having a refrigerant containing an oil lubricant. The apparatus includes a support frame, a modular housing supported by the frame and defining internal accumulator, condenser, storage, and high and low pressure filter chambers, and a control plate assembly having a plurality of flow passages enabling flow communication between the various chambers. The control plate is adopted for connection to the refrigeration system being serviced, and has control valves operative to control flow of refrigerant through the passages to and between the internal chambers. A processor controls the control valves in a manner enabling selective recovery, evacuation, charging and/or flushing of the refrigerant of the refrigeration system.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: November 29, 1994
    Assignee: Environmental Products Amalgamated Pty. Ltd.
    Inventors: Robert L. Muston, Mario Matkowitch