Patents by Inventor David L. McNamara

David L. McNamara 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).

  • Apparatus and method for flushing transmission fluid
    Patent number: 5427202
    Abstract: An apparatus (10) is disclosed for completely flushing transmission fluid from a transmission in a vehicle (12). The apparatus includes a storage tank (18) which is connected to a cooler line (38, 40) extending between the transmission and a transmission cooler (radiator) so that the vehicle transmission pumps the used transmission fluid directly into the storage tank. Simultaneously, replacement fluid is supplied from a supply tank (20) and pumped into the dipstick tube (32) of the transmission by a suitable pump (22). In this manner, the used fluid is quickly and completely flushed from the transmission.
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: June 27, 1995
    Inventors: Melvin A. Behring, David L. McNamara