Patents by Inventor Edwin P. Wnorowski

Edwin P. Wnorowski 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).

  • Rotary damper
    Patent number: 5988329
    Abstract: A rotary damper includes a housing and a vane. There is an indentation in the housing which permits fluid to flow readily from one side of the vane to the other during part of the rotary stroke. At the end of the rotary stroke, there is an alternative path for fluid to take from one side of the vane to the other, and this path preferably includes an adjustable aperture so the amount of damping at the end of the stroke can be adjusted.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: November 23, 1999
    Assignee: Turn-Act, Inc.
    Inventors: Charles F. Evans, Jr., Edwin P. Wnorowski, Robert R. Fowler, Gary M. Rumrill, Keith E. Dunmire
  • Molded piston
    Patent number: 5947001
    Abstract: A molded piston includes a base plate, having a plurality of holes, and a polymeric material molded around the base plate and extending through the holes so as to form a mechanical bond between the base plate and the polymeric material. The molded piston preferably includes integral seals in its outer circumferential surface and integral standoffs on its end surfaces. In some preferred embodiments, the molded piston also includes a magnet which creates a magnetic field in the area of the piston.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: September 7, 1999
    Assignee: Turn-Act, Inc.
    Inventors: Charles F. Evans, Jr., Edwin P. Wnorowski, Robert R. Fowler, Brian P. Pate