Patents by Inventor Jon C. Puzey

Jon C. Puzey 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).

  • Sheet feeding apparatus with pressure sensing vacuum assembly
    Patent number: 5226640
    Abstract: The sucker assembly is driven into contact with the stack of sheets by a fluid drive air cylinder at relatively slow speed. The stack of sheets is held at a steep incline in the hopper which includes a stock advance drive for keeping the entire stack properly positioned adjacent the sucker pickup point. A pressure sensing transducer measures the vacuum at the suction cupped tip of the sucker and triggers the relatively brisk retraction of a single sheet when proper vacuum is sensed.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: July 13, 1993
    Inventor: Jon C. Puzey