Patents by Inventor Andrew Wierzbicki

Andrew Wierzbicki 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 device having an adjustable sheet restrainer
    Patent number: 5171007
    Abstract: An improved sheet feeding device is disclosed for feeding individual sheets separately from a stack into a high-speed press. The device is positioned over a portion of the stack, and includes flexible and moveable springs attached to a base portion, which is adjustably connected to the printer. The individual springs exert a downward pressure on the top sheet of the stack, preventing multiple sheets from being conveyed into the printer at one time.
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: December 15, 1992
    Assignee: N & A Custom Metal Service, Inc.
    Inventors: Gregory Kasprzak, Andrew Wierzbicki