Patents by Inventor Duan W. Chisnell

Duan W. Chisnell 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).

  • Seat belt buckle with a shield blocking a tongue receiving opening
    Patent number: 6055708
    Abstract: A seat belt buckle (12) includes a buckle base (34) having a passage (36) for receiving a tongue (16) by movement of the tongue in a first direction into the passage. An ejector (40) in the passage (36) is biased in a second direction opposite the first direction. The ejector (40) moves in the first direction against the bias upon insertion of the tongue (16) into the passage (36). A latch (42) latches the tongue (16) in the passage (36). The buckle (12) includes structure (24, 32) defining an opening (22) through which the tongue (16) is inserted into the passage (36). A shield (60) blocks the opening (22) and blocks foreign matter from passing through the opening.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: May 2, 2000
    Assignee: TRW Vehicle Safety Systems Inc.
    Inventors: Robert P. Ellis, Duan W. Chisnell