Ronald Allen Gilbert

US Patent:

7267300, Sep 11, 2007

Filed:

Feb 25, 2005

Appl. No.:

11/065855

Inventors:

Gregory F. Heath - Mesa AZ, US
Ronald E. Gilbert - Payson AZ, US
Terrell W. Hansen - Mesa AZ, US
Stephen C. Slaughter - Scottsdale AZ, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

B64C 15/02

US Classification:

244 123

Abstract:

Aircraft comprising an airframe having a forward end, an aft end opposite the forward end, a top extending between the forward end and the aft end, and a bottom opposite the top side. The aircraft further includes a power plant mounted on the airframe. In addition, the aircraft includes at least two propellers rotatably mounted on the airframe and powered by the power plant for moving the aircraft in a generally forward direction during operation of the propellers. Also, the aircraft includes at least two counter-rotatable fan sets mounted on the airframe and powered by the power plant for providing upward lift to the aircraft during operation of the fan sets.

US Patent:

20050043136, Feb 24, 2005

Filed:

Aug 20, 2003

Appl. No.:

10/645888

Inventors:

James Colter - Mesa AZ, US
Ronald Gilbert - Payson AZ, US
Stephen Slaughter - Scottsdale AZ, US
Michael Havird - Mesa AZ, US

International Classification:

F16H057/08

US Classification:

475344000

Abstract:

A planetary gear system is provided where the sun and planet gears are of welded, one-piece double helical construction. Further provided is a method of forming a planetary gear system, and the sun and planet gears for such a system, by welding together two parts of the sun and planet gears, each part having helical gear teeth, to provide sun and planet gears of welded, one-piece double helical construction.

US Patent:

58029184, Sep 8, 1998

Filed:

Oct 16, 1996

Appl. No.:

8/732930

Inventors:

Yih-Jen D. Chen - Chandler AZ
Gregory F. Heath - Mesa AZ
Ronald E. Gilbert - Payson AZ
Vijay J. Sheth - Mesa AZ
Michael T. Morris - Mesa AZ

Assignee:

McDonnell Douglas Helicopter Co. - Mesa AZ

International Classification:

F16H 122
F16H 5520

US Classification:

74416

Abstract:

A concentric face gear assembly includes a first face gear having first face gear teeth and second face gear having second face gear teeth. At least one input pinion contacts both the first face gear teeth and the second face gear teeth, and at least one idler pinion contacts both the first face gear teeth and the second face gear teeth. The first face gear is adapted for directly driving a rotor, but the second face gear is not adapted for directly driving a rotor. The load carried by the first face gear includes the force needed to drive the rotor. Since it does not drive a rotor, the second face gear does not comprise a web or spline attachment and is therefore lightweight. Both the first face gear and the second face gear include thrust bearings, which are located radially outwardly of the first face gear teeth and radially inwardly of the second face gear teeth. The first face gear includes a web, which is relatively thin due to the thrust bearing of the first face gear being located radially outwardly of the first face gear teeth rather than radially inwardly of the first face gear teeth.