Patents by Inventor Walter H. Dudar

Walter H. Dudar 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).

  • Valve stem
    Patent number: 4239184
    Abstract: A construction for valve stems for vehicle tires is provided which fits them to accept quick connect and disconnect connectors. The stem is equally functional with quick connect connectors of different sizes and provides a protective covering for the entrance to the valve stem which is quickly removed when the connector is to be affixed.
    Type: Grant
    Filed: April 3, 1979
    Date of Patent: December 16, 1980
    Inventor: Walter H. Dudar
  • Tire inflating unit
    Patent number: 4212334
    Abstract: A unit for inflating a vehicle tire is provided which functions to transmit air only if the tire contains at least a predetermined pressure. A signal is also provided which will function either to notify the user that air is being transmitted, or in the alternative, that air is not transmitted because a predetermined pressure was not present in the tire.
    Type: Grant
    Filed: November 16, 1978
    Date of Patent: July 15, 1980
    Inventor: Walter H. Dudar