Patents by Inventor Hon Wah Koh

Hon Wah Koh 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).

  • Patent number: 6354640
    Abstract: The invention concerns a handle (1, 1′) for use in a locking mechanism (10, 10′), which handle comprises a lever (7, 7′) adjacent one end of which is located a cam (4, 4′) for activating said locking mechanism, and a connecting portion (5, 5′) intermediate to and unitary with the cam and the lever. In the locking mechanism, the handle is rotatably mounted in the housing (11, 11′) of the locking mechanism, the cam of the handle being provided on the inside of the housing and between two pawls (19, 19′) mounted for pivotal movement in mutually opposed directions between a first locking position and a second position for securing a locking member in the locking position, the pawls being biased towards said locking position by resilient biasing means (21, 21′). Relative rotation between the handle and the housing permits the locking member to be released from the locking position.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: March 12, 2002
    Assignee: Diethelm Industries PTE Ltd.
    Inventors: Ming Xing Xie, Hon Wah Koh
  • Publication number: 20010013704
    Abstract: The invention concerns a handle (1, 1′) for use in a locking mechanism (10, 10′), which handle comprises a lever (7, 7′) adjacent one end of which is located a cam (4, 4′) for activating said locking mechanism, and a connecting portion (5, 5′) intermediate to and unitary with the cam and the lever. In the locking mechanism, the handle is rotatably mounted in the housing (11, 11′) of the locking mechanism, the cam of the handle being provided on the inside of the housing and between two pawls (19, 19′) mounted for pivotal movement in mutually opposed directions between a first locking position and a second position for securing a locking member in the locking position, the pawls being biased towards said locking position by resilient biasing means (21, 21′). Relative rotation between the handle and the housing permits the locking member to be released from the locking position.
    Type: Application
    Filed: February 16, 1999
    Publication date: August 16, 2001
    Inventors: MING XING XIE, HON WAH KOH