Patents by Inventor Donald Walden

Donald Walden 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).

  • Patent number: 5934151
    Abstract: A push rod and pedal assembly includes a pedal pivotally mounted on a vehicle for movement in a generally longitudinal direction and a socket portion mounted on the pedal and movable with the pedal. The socket portion preferably has an opening facing in a generally forward longitudinal direction. The push rod and pedal assembly further includes a longitudinally oriented push rod having a push rod end being alignable generally forward of the socket portion and insertable within the socket portion upon forward longitudinal movement of the pedal. Thus, the push rod end becomes coupled to the socket portion of the pedal upon the application of forward longitudinal movement to the pedal, such as by a foot of an assembler. Preferably, a retainer is mounted on the push rod end and the retainer and push rod end are insertable within the socket portion of the pedal by snap-fitted connection upon forward longitudinal movement of the pedal.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: August 10, 1999
    Assignee: General Motors Corporation
    Inventors: James Eugene Carr, James Donald Walden, Leonid Drits
  • Patent number: 5896897
    Abstract: The invention is a filling valve which mounts to a filling machine having a storage tank for filling bottles or containers with liquid. The liquid passage of the filling valve is formed by a valve stem detachably connected with a sleeve. The two-piece design permits easy cleaning, replacing, and interchanging of the valve parts. The sleeve and valve stem are provided with large diameter bores in order to maximize fluid flow and minimize fill time. The bores of the sleeve and valve stem are provided with smooth tapered surfaces to reduce liquid turbulence.
    Type: Grant
    Filed: December 2, 1997
    Date of Patent: April 27, 1999
    Inventors: David Lewis, Donald Walden
  • Patent number: 5820388
    Abstract: A low profile, surface-mounted receptacle includes a housing having a cavity defined at least in part by the interior surfaces of the sidewalls thereof. The interior surface of at least one sidewall has a groove, one wall of the groove being defined by an inclined portion. An electrical spring contact is received within the groove, the contact being of the curved, dual cantilever type having a first leg, a curved transition portion and a second leg. The contact being disposed to define a clearance space between itself and the inclined. The legs and curved portion responding to the introduction of a male plug by cantilever toward the inclined sidewall and undergoing a reduction in the radius of curvature, thereby displacing to an extent sufficient to exert a predetermined normal force on the plug, despite dimensional variations in the housing due to manufacture.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: October 13, 1998
    Assignee: Berg Technology, Inc.
    Inventor: John Donald Walden
  • Patent number: D401671
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: November 24, 1998
    Inventors: David Lewis, Donald Walden