Patents by Inventor David E. Cockfield

David E. Cockfield 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: 5779096
    Abstract: A windshield wiper washer fluid system designed to visually notify the operator of the vehicle that the windshield wiper washer fluid is getting low and should be refilled. The system includes a tank having a passenger side hose and a driver's side hose each connected thereto such that the passenger side hose only sprays washer fluid on the passenger's side of the windshield and the driver's side hose only sprays washer fluid on the driver's side of the windshield. The tank and hoses are designed such that the passenger's side hose will run out of fluid before the driver's side hose and washer fluid will only spray on the driver's side indicating that the system needs to have washer fluid added while allowing the driver to continue to clean the driver's side of the windshield.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: July 14, 1998
    Inventor: David E. Cockfield