Patents by Inventor Oo Chong Yeow

Oo Chong Yeow 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).

  • Two-step self-modulating scroll compressor
    Patent number: 6984114
    Abstract: A self-modulating scroll compressor includes a pair of valves. A first valve moves to a low capacity position when the pressure differential is below a predetermined amount. A second valve moves to a low capacity position when the suction pressure is above a predetermined amount. Low capacity operation will only occur when both valves are open. The present invention thus provides a scroll compressor design with the ability to self-modulate and control the conditions under which low capacity operation occurs based upon two criteria.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: January 10, 2006
    Assignee: Scroll Technologies
    Inventors: Sun Zili, Oo Chong Yeow
  • Two-step self-modulating scroll compressor
    Patent number: 6884042
    Abstract: A self-modulating scroll compressor includes a pair of valves. A first valve moves to a low capacity position when the pressure differential is below a predetermined amount. A second valve moves to a low capacity position when the suction pressure is above a predetermined amount. Low capacity operation will only occur when both valves are open. The present invention thus provides a scroll compressor design with the ability to self-modulate and control the conditions under which low capacity operation occurs based upon two criteria.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: April 26, 2005
    Assignee: Scroll Technologies
    Inventors: Sun Zili, Oo Chong Yeow
  • Two-step self-modulating scroll compressor
    Publication number: 20050042125
    Abstract: A self-modulating scroll compressor includes a pair of valves. A first valve moves to a low capacity position when the pressure differential is below a predetermined amount. A second valve moves to a low capacity position when the suction pressure is above a predetermined amount. Low capacity operation will only occur when both valves are open. The present invention thus provides a scroll compressor design with the ability to self-modulate and control the conditions under which low capacity operation occurs based upon two criteria.
    Type: Application
    Filed: August 17, 2004
    Publication date: February 24, 2005
    Inventors: Sun Zili, Oo Chong Yeow