HEINRICH GERHARDT
Pilots at Cathann St, Torrance, CA
License number
California A4399981
Issued Date
May 2016
Expiration Date
May 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
5001 Cathann St, Torrance, CA 90503
Professional information
Shape Memory Wire Actuated Aircraft Door Seal
US Patent:
6009669, Jan 4, 2000
Filed:
Mar 11, 1999
Appl. No.:
9/268510
Inventors:
Andrew Peter Jardine - Thousand Oaks CA
Heinrich Gerhardt - Torrance CA
Arun Robert Palusamy - Torrance CA
Raymond David Gomez - La Habra CA
Heinrich Gerhardt - Torrance CA
Arun Robert Palusamy - Torrance CA
Raymond David Gomez - La Habra CA
Assignee:
Northrop Grumman Corporation - Los Angeles CA
International Classification:
E06B 728
US Classification:
49316
Abstract:
An aircraft door adapted to substantially seal with a door frame. The aircraft door is provided with an edge portion which is formed to engage the door frame. The edge portion has a sealed position wherein the edge portion is engaged with the door frame. The edge portion further has an unsealed position wherein the edge portion is spaced from the door frame. The aircraft door is further provided with a substantially rigid door body and an elastic portion interposed between the door body and the edge portion. The elastic portion is selectively expandable and compressible for permitting movement of the edge portion between the sealed and unsealed positions. The aircraft door is further provided with an actuator device which mechanically couples the door body with the edge portion for selectively moving the edge portion between the sealed and unsealed positions. The actuator device comprises a shape memory metal material having a predetermined transition temperature. The actuator device assumes a contracted state when above the transition temperature and the edge portion is sized and configured to be in the unsealed position.