Patents by Inventor Marlin L. Hutmaker

Marlin L. Hutmaker 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).

  • Drainage control for compressed air system
    Patent number: 4453893
    Abstract: The invention comprises a valve contained in a drainage line from a compressor tank and a control for operating the valve. The control includes a timer which comprises an air storage tank, an air bleed valve for bleeding the storage tank and structure for operating the valve in response to air pressure received from the air storage tank. The timer operator is initiated in response to deactivation of the compressor motor.
    Type: Grant
    Filed: April 14, 1982
    Date of Patent: June 12, 1984
    Inventor: Marlin L. Hutmaker