Patents by Inventor John W. R. Lewis

John W. R. Lewis 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).

  • Buckle
    Patent number: 4310954
    Abstract: A seat belt buckle has a latch plate provided with a locking tooth which is biassed into engagement with an aperture in a locking plate, and is provided with a slider operated lever to move the latch plate to release the locking plate. A protrusion is provided on the slider which lies adjacent a portion of the latch plate when in the locking position to prevent the latch plate being disengaged from the locking plate even if the device is subjected to a sudden shock.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: January 19, 1982
    Assignee: Howard Wall Limited
    Inventors: John W. R. Lewis, Mark E. Esner