Patents by Inventor Stephen Carey Hagwood

Stephen Carey Hagwood 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).

  • Publication number: 20090071776
    Abstract: A hydraulic damper including a housing, a piston assembly slideably received within the housing to define a piston chamber and a rod chamber, the piston assembly including a valve and a solenoid, the solenoid including an integral piston, wherein the valve is actuateable by the solenoid, and a cup disposed in the rod chamber, the cup being generally sealingly engageable by the integral piston.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 19, 2009
    Inventor: Stephen Carey Hagwood
  • Patent number: 5690319
    Abstract: A turnable pneumatic suspension system is provided wherein proper air flow to the diaphragm is ensured through a charging route that is maintained in a securely sealed condition and which includes a nonrotatable point of attachment to a remote pressurization device. The pneumatic suspension system includes an air spring and a damper in combination, mounted to rotate relative to a vehicle with a dynamic seal provided between a nonrotatable seal ring and mating components of the air spring facilitating rotation of the suspension module while the entrance to the air charging route of the suspension module remains stationary.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: November 25, 1997
    Assignee: General Motors Corporation
    Inventors: Frank Robinson, James William Zehnder, II, William Charles Kruckemeyer, Herbert Stanley Summers, III, Jay Michael Shores, Stephen Carey Hagwood
  • Patent number: 5678810
    Abstract: A pneumatic suspension system including an air spring in combination with a damper provides a way of mounting to a vehicle with a dual path mount. The air spring includes a canister in combination with a flexible element defining a variable pressure chamber. A mounting plate is captured about the canister by a nut. The nut has an air passageway for inflating and relieving the air spring and for providing a selectively open communicative path between the air spring and a remote volume that extends through the mount.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: October 21, 1997
    Assignee: General Motors Corporation
    Inventors: Herbert Stanley Summers, III, Jay Michael Shores, Stephen Carey Hagwood, Frank Robinson, William Charles Kruckemeyer