Patents Assigned to Zee Systems, Inc.
  • Air conditioning system having timed oil drain separator
    Patent number: 5199271
    Abstract: An air conditioning system (10) for an aircraft, the air conditioning system (10) having a separator (14) located between the high pressure side of a compressor (12) and a condenser (18). A timer (34) activated normally open solenoid (32) is located on a separator drain line 28 to periodically dump the lubricant accumulated in the separator (14) back into the compressor (12).
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: April 6, 1993
    Assignee: Zee Systems, Inc.
    Inventor: John W. Ewer