Patents by Inventor Wai L. Loh

Wai L. Loh 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).

  • Discharge device
    Patent number: 5314121
    Abstract: A discharge device for reducing foaming of liquid flowing from a conduit (3) into a body of liquid. The discharge device (3) contains at least a porous permeable body (6) including a core (12) and an annular layer (15). To cause during normal operation liquid to leave the porous permeable body (6) in the form of a liquid bell (18) the resistance to flow through the porous permeable body (6) in the direction of its central longitudinal axis (9) is larger than the resistance to flow through the porous permeable body (6) in lateral direction towards the side surface (17) of the porous permeable body.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: May 24, 1994
    Assignee: Shell Oil Company
    Inventors: Grahame Y. Buss, Wai L. Loh