Patents by Inventor Tina T. Bishop

Tina T. Bishop 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: 5142162
    Abstract: A battery discharge load current control system for a motor vehicle electrical system which can disconnect the battery from an electrical load to prevent over-discharge of the battery. The electrical load can be a so-called parasitic load which is of the type that is normally permanently connected to the battery. The electrical load is disconnected from the battery after the elapse of certain time periods. The system has a means for counting ignition cycles and after a certain count is attained, it is considered that the motor vehicle has been delivered to a purchasing customer. Prior to attaining the count, the time period is controlled to be about 1 or 2 days. After the count is attained, the time period is increased to be about 20 to 30 days.
    Type: Grant
    Filed: December 11, 1990
    Date of Patent: August 25, 1992
    Assignee: General Motors Corporation
    Inventors: Arthur R. Sundeen, Tina T. Bishop