Patents by Inventor Christopher D. Porter

Christopher D. Porter 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: 5860459
    Abstract: A top off fill wand assembly for adding and removing operating fluid from an automatic transmission for a vehicle having a flexible fluid fill line for snaking through a transmission fill tube which incorporates a tip assembly with a metal electrical contact at the tip. The contact of the tip with the bottom of the oil pan completes electrical circuitry activating top off operation. The tip has a port which corresponds to indicator stick level measurement system. If level is low, the fill wand delivers fluid to the sump until the port is reached, and if level is high, the wand removes fluid until the level is obtained.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: January 19, 1999
    Assignee: Chrysler Corporation
    Inventors: Bowu Reed, Christopher D. Porter