Patents by Inventor Christopher E. Epler

Christopher E. Epler 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).

  • Three-way valve
    Patent number: 6179000
    Abstract: A three-way valve for controlling the application of air to a pneumatically controllable device has a pressure chamber for pressurizing a work chamber to which the device is connectable and an exhaust chamber for expelling air from the work chamber. Unidirectional flow means prevents air in the work chamber from entering the space behind a valve member controlling the flow of air from the pressure chamber to the work chamber for avoiding valve lockup.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: January 30, 2001
    Assignee: Automatic Switch Company
    Inventors: David B. Zdobinski, Christopher E. Epler