Patents by Inventor John D. Stanford

John D. Stanford 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).

  • Variable and normally open vented parachute device and method of using and controlling a parachute device
    Patent number: 4722497
    Abstract: A parachute device primarily for propulsion of a work load, specifically a snow skier who wants to go across flat terrain or uphill, has a canopy with a leading annulus and a normally open apex vent having a plurality of wedge shaped panels secured on one side to the annulus, each panel has a tip with an apex ring, a plurality of suspension lines lead from the annulus to a control center, a vent control line extends from the control center to each panel apex ring and the control line has a vent control ring which causes the control line to pull the panel apex rings together in an apex of the canopy, the control center has a motor driven reel for taking in the control line and a one-way brake on the reel enables letting out of the control line when a manual brake release is manipulated, a safety release in one side of the control center has structure for release of a fraction of the suspension lines for instant deflation of the canopy and a complete release system on a load harness has structure for instant co
    Type: Grant
    Filed: May 20, 1985
    Date of Patent: February 2, 1988
    Inventors: John D. Stanford, Phillip B. Huff