Patents by Inventor Du Wayne Schmiek

Du Wayne Schmiek 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).

  • Key interlocked parking brake safety assembly
    Patent number: 4469192
    Abstract: A spring-loaded lever assembly for engaging an ignition related cam or slide for preventing the return of a key and ignition to a key release position, without previously setting the parking brake. For dash-mounted ignitions, a cylinder related cam is engaged via a spring-loaded lock lever head and cable actuated lock lever handle. For column ignitions, the cable actuated lock lever handle and head act in concert with a key actuated linear slide. A buzzer and warning light, in turn, warn of the failure to set the parking brake.
    Type: Grant
    Filed: August 8, 1983
    Date of Patent: September 4, 1984
    Inventor: Du Wayne Schmiek