Patents by Inventor Marcel Pravaz

Marcel Pravaz 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: 3969772
    Abstract: Jumping garment for a parachutist in which means are incorporated for increasing the drag during the free fall. The drag-increasing means comprise openings formed in the wall of the garment in at least one of the sides of the body. The openings are adapted to allow direct entry of air into the space defined by the garment around the body of the parachutist so as to fully inflate the garment.
    Type: Grant
    Filed: December 11, 1974
    Date of Patent: July 20, 1976
    Assignee: Etudes et Fabrications Aeronautiques
    Inventor: Marcel Pravaz
  • Patent number: 3963199
    Abstract: The device comprises a first gripping band of the Velcro type which is secured to a first of the parachute pack flaps and engages a second gripping band of the Velcro type secured to a second pack flap opposite the first flap. The pack is opened by an opening control device which is connected through a flexible connecting element to an edge of the second gripping band in such manner that a pull on the opening control device causes the second gripping band to be disengaged by peeling off from the first gripping band in starting from the edge. In an alternative arrangement, the first and second gripping bands are interconnected not directly but by an independent gripping band which is disengaged by peeling off from the first and second gripping bands for opening the pack. The opening control device may be an automatic pack opening strap coiled on the pack.
    Type: Grant
    Filed: May 20, 1974
    Date of Patent: June 15, 1976
    Assignee: Etudes et Fabrications Aeronautiques
    Inventor: Marcel Pravaz