Patents by Inventor Robert A. Sienkiewycz

Robert A. Sienkiewycz 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).

  • Pneumatic tool and vibration isolator therefor
    Patent number: 5881822
    Abstract: A pneumatic tool is disclosed which includes vibration mounts to reduce the amount of vibration transferred to the user. The vibration mounts include a pair of support members and at least one resilient vibration isolator connecting the support member in a spaced relationship. A compressed air conduit passes through the support member openings but is only directly fastened to one of the support members.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: March 16, 1999
    Assignees: Chicago Pneumatic Tool Company, The Lord Corporation
    Inventors: Robert A. Sienkiewycz, Robert J. Michael
  • Straight-handle pulse tool
    Patent number: D377302
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: January 14, 1997
    Assignee: Chicago Pneumatic Tool Company
    Inventors: Yutaka Kazamaki, Joseph Groshans, Robert Sienkiewycz