Patents by Inventor Williams Ching-To Kwan

Williams Ching-To Kwan 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).

  • Oil separator
    Patent number: 6858056
    Abstract: An oil separator includes a casing 1 and a rotor 2, said rotor being arranged rotatably within said casing and having a flow chamber 3 through which oil-laden air 4 can pass, with porous material being arranged in the flow chamber 3. At least one unit of porous material is arranged in the flow chamber 3 which includes outer layers of a porous metal 6 and an interlaid layer 7 comprising fibre material.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: February 22, 2005
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventor: Williams Ching-To Kwan
  • Oil separator
    Publication number: 20030089656
    Abstract: An oil separator includes a casing 1 and a rotor 2, said rotor being arranged rotatably within said casing and having a flow chamber 3 through which oil-laden air 4 can pass, with porous material being arranged in the flow chamber 3. At least one unit of porous material is arranged in the flow chamber 3 which includes outer layers of a porous metal 6 and an interlaid layer 7 comprising fibre material.
    Type: Application
    Filed: September 27, 2002
    Publication date: May 15, 2003
    Inventor: William Ching-To Kwan