DAVID JAMES KIRSHMAN
Pilots at Impala Ln, Huntington Beach, CA
License number
California A2803938
Issued Date
Mar 2016
Expiration Date
Mar 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
21582 Impala Ln, Huntington Beach, CA 92646
Professional information
Solar Powered Radiometric Lift Device
US Patent:
8596572, Dec 3, 2013
Filed:
Aug 7, 2009
Appl. No.:
12/537573
Inventors:
David Kirshman - Huntington Beach CA, US
David A. Deamer - Seal Beach CA, US
Maurice P. Bianchi - Palos Verdes Estates CA, US
David A. Deamer - Seal Beach CA, US
Maurice P. Bianchi - Palos Verdes Estates CA, US
Assignee:
The Boeing Company - Chicago IL
International Classification:
B64C 39/00
US Classification:
244 34R, 244126, 244 1 R
Abstract:
A solar powered radiometric lift device operable to generate sustained lift is disclosed. A hot surface powered by solar energy and a colder surface are utilized to generate a pressure differential via free molecular momentum exchange. An insulating space may be situated between the hot surface and the colder surface, and formed into channels allowing thermal transpiration. The solar powered radiometric lift device is operable to provide sufficient lift for a geostationary stratospheric platform. Embodiments of the solar powered radiometric lift device are further operable to provide station keeping thrust and controllability.
Cavity Flow Shock Oscillation Damping Mechanism
US Patent:
8436284, May 7, 2013
Filed:
Nov 21, 2009
Appl. No.:
12/623412
Inventors:
David J. Kirshman - Huntington Beach CA, US
David A. Deamer - Seal Beach CA, US
David A. Deamer - Seal Beach CA, US
Assignee:
The Boeing Company - Chicago IL
International Classification:
F42B 10/02
US Classification:
244 316, 244 35 A
Abstract:
A pressure oscillation damping mechanism comprises a cavity having an entrance exposed to fluid flowing on an exterior of the cavity. The damping mechanism may include a constriction positioned adjacent to the entrance and being sized to dampen an amplitude of the pressure oscillations occurring within the cavity.