Patents by Inventor Marvin S. Stone

Marvin S. Stone 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).

  • Static line parachute automatic activation device
    Patent number: 6880786
    Abstract: An apparatus and method to improve the safety of static line parachute jumping are disclosed. According to the method, a safety device situated on a jumper continuously or periodically senses the distance of the jumper from the jumping platform (e.g. an aircraft). The safety device compares this distance to a predetermined distance threshold. When the distance between the jumper and the jumping platform reaches or exceeds the predetermined distance threshold, the safety device enables the reserve parachute deployment device which automatically deploys the reserve parachute if at such time the jumper's rate-of-descent is at or greater than a predetermined rate-of-descent threshold. Thus, the apparatus enables its reserve parachute deployment portion when the jumper is at least a predetermined distance from the jumping platform.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: April 19, 2005
    Assignee: L.J. Engineering, Inc.
    Inventors: Brian J. Weis, Brian E. McCollough, Marvin S. Stone, Edward W. Maby
  • Static line parachute automatic activation device
    Publication number: 20040245398
    Abstract: An apparatus and method to improve the safety of static line parachute jumping are disclosed. According to the method, a safety device situated on a jumper continuously or periodically senses the distance of the jumper from the jumping platform (e.g. an aircraft). The safety device compares this distance to a predetermined distance threshold. When the distance between the jumper and the jumping platform reaches or exceeds the predetermined distance threshold, the safety device enables the reserve parachute deployment device which automatically deploys the reserve parachute if at such time the jumper's rate-of-descent is at or greater than a predetermined rate-of-descent threshold. Thus, the apparatus enables its reserve parachute deployment portion when the jumper is at least a predetermined distance from the jumping platform.
    Type: Application
    Filed: May 1, 2003
    Publication date: December 9, 2004
    Inventors: Brian J. Weis, Brian E. McCollough, Marvin S. Stone, Edward W. Maby