Patents by Inventor Gary P. Boyd

Gary P. Boyd 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).

  • Marine engine maintenance
    Patent number: 5337774
    Abstract: A system for use in winterizing/dewinterizing a watercraft marine engine is provided with a closed coolant storage tank having a cooperating pump, with an open coolant recovery tank having a separate cooperating pump, with coolant fluid transfer lines connecting the storage tank pump outlet to the recovery tank and connecting the recovery tank pump outlet to the storage tank, and a control for operating the storage tank pump and the recovery tank pump independently of each other.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: August 16, 1994
    Assignee: The Smart Corporation
    Inventor: Gary P. Boyd