Quad tiltrotor
Latest Bell Helicopter TEXTRON Inc. Patents:
Description
FIG. 1 is a top view of a quad tiltrotor of our new design having rotors in the takeoff/landing/hovering position;
FIG. 2 is a bottom view thereof;
FIG. 3 is a port side elevation view thereof;
FIG. 4 is a starboard side elevation view thereof;
FIG. 5 is a front elevation view thereof;
FIG. 6 is a rear elevation view thereof;
FIG. 7 is a top view of a quad tiltrotor of our new design having rotors in a flight position;
FIG. 8 is a bottom view thereof;
FIG. 9 is a port side elevation view thereof;
FIG. 10 is a starboard side elevation view thereof;
FIG. 11 is a front elevation view thereof;
FIG. 12 is a rear elevation view thereof; and,
FIG. 13 is a perspective view thereof.
Claims
The ornamental design for the quad tiltrotor, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
D392937 | March 31, 1998 | Brichard et al. |
D394422 | May 19, 1998 | Magee |
D401898 | December 1, 1998 | Lauder et al. |
- J.A. DeTore—Trends for Optimum Flying Crane Design, Oct. 1957.
- John A. DeTore—An Investigation of Improved Flying Qualities for Tandem Rotor Helicopters, Institution of the Aerospace Sciences, Jan. 23-25, 1961.
- L. Kingson and J. DeTore—Second European Rotorcraft and Powered Lift Aircraft Forum Paper No. 36, Tilt Rotor v/Stol Aircraft Technology, Sep. 20-22, 1976.
- J. DeTore and S. Martin, Jr.—Multi Rotor Options for Heavy Lift, Star Technical Paper Series Dec. 3-6, 1979.
- Scott R. Gourley—Article V-44—Flying Freight Train, pp. 66-69, Popular Mechanics Magazine, Sep. 2000.
Patent History
Patent number: D453317
Type: Grant
Filed: Dec 1, 2000
Date of Patent: Feb 5, 2002
Assignee: Bell Helicopter TEXTRON Inc. (Hurst, TX)
Inventors: John A. DeTore (Arlington, TX), Richard F. Spivey (Fort Worth, TX), Malcolm P. Foster (Fort Worth, TX), Tom L. Wood (Arlinton, TX)
Primary Examiner: Marcus A. Jackson
Attorney, Agent or Law Firms: Theodore F. Shiells, Sanford E. Warren, Jr., Gardere Wynne Sewell LLP
Application Number: 29/133,527
Type: Grant
Filed: Dec 1, 2000
Date of Patent: Feb 5, 2002
Assignee: Bell Helicopter TEXTRON Inc. (Hurst, TX)
Inventors: John A. DeTore (Arlington, TX), Richard F. Spivey (Fort Worth, TX), Malcolm P. Foster (Fort Worth, TX), Tom L. Wood (Arlinton, TX)
Primary Examiner: Marcus A. Jackson
Attorney, Agent or Law Firms: Theodore F. Shiells, Sanford E. Warren, Jr., Gardere Wynne Sewell LLP
Application Number: 29/133,527
Classifications