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SPACE PATENTS BY
Aerospace Assignees
Aerospace Inventors
Time Lines

Helicopter blade emergency detachment system

Invented by: William Spencer Boice
Atlanta, GA

Jonathan Wilhelm Den Hartog
Crozier, VA

Scott T. Wisniewski
Manchester, NH

Originally Assigned to: William Spencer Boice
Atlanta, GA
[Now assigned to . . .]

Jonathan Wilhelm Den Hartog
Crozier, VA
[Now assigned to . . .]

Scott T. Wisniewski
Manchester, NH
[Now assigned to . . .]

Issued:2007-03-27
Filed:2005-08-25
Application No:11211923
Examined by:Dinh; Tien

A method and system for a helicopter blade emergency detachment system that has an activator in the cockpit to initiate the system, an ignition train to provide the detonation signal, a transfer system at the base of the main rotor shaft to move the signal from the stationary helicopter to the rotating blades, and explosive charges located at the root of each main bearing-less rotor blade to separate the composite blade from the main rotor. These four components interact in the way described to enable the blades of the helicopter to be detached during an emergency, thus increasing the stability of the aircraft during a hard landing and/or allowing for the use of an occupant ejection seat or parachute while the helicopter is still in flight.

[pdf] U.S. Pat. No. 7,195,198

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This information is part of a study by Oasis Global, Inc. of all space inventions filed at the United States Patent and Trademark Office, and is provided for informational purposes only. It is not an endorsement of any particular assignee, inventor or invention. Although Peter A. Koziol represents inventors and assignees of space inventions he does not represent all of the inventors and assignees listed. The prosecuting attorney agent or firm for each patent is identified by the United States Patent and Trademark Office in the patent specfication, which can be viewed by clicking on the patent image or downloading the patent document. For more information regarding Mr. Koziol's background and experience, or to learn more about space inventions, please contact Mr. Koziol.

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