Patents by Inventor Russell D. Ridgway

Russell D. Ridgway 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).

  • High strength filter
    Patent number: 5453195
    Abstract: The filter includes an end plate stamped and drawn from sheet metal and formed with four upright walls generally defining a square and having inlet openings therein. Relatively deep gussets are located between the walls for strengthening purposes. Located outwardly of the walls and gussets is a flat peripheral portion of relatively small area and defining a flat surface to which a sheet metal retaining ring is welded. The ring is seamed to the canister of the filter by a hem which hooks beneath a short radially extending lip of the canister.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: September 26, 1995
    Assignee: Baldwin Filters, Inc.
    Inventors: Kenton L. Jorgenson, Melvin E. Busch, Russell D. Ridgway, Wilhelm A. A. Perleberg
  • Fuel filter with drain/fill/sensor port
    Patent number: 5322624
    Abstract: A drain/fill/sensor port for use in fuel filters and a method for making the same. The port comprises a ferrule attached to a sheet metal shell which is formed with a domed end portion having a central aperture. The ferrule includes four angularly spaced slots adapted to receive and interlock with tabs spaced angularly around the aperture in order to fasten the ferrule securely to the shell.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: June 21, 1994
    Assignee: Baldwin Filters, Inc.
    Inventors: Jeffrey E. D. Rogers, Russell D. Ridgway, Wilhelm A. A. Perleberg