Patents by Inventor Walter W. Barber

Walter W. Barber 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).

  • Paper feed mechanism for offset printer
    Patent number: 3991997
    Abstract: An improved paper feed mechanism includes a vacuum manifold having a number of spaced, paper feeding suction tubes with each tube having a valve intermediate its ends. The valves permit respective tubes to be selectively placed in fluid communication with the manifold.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: November 16, 1976
    Inventor: Walter W. Barber