Evan A. Fradenburgh

Person

New London, NH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Rotor system having alternating length rotor blades and positioning...
- Patent number 5,735,670
- Issue date Apr 7, 1998
- Sikorsky Aircraft Corporation
- Robert C. Moffitt
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Drive system for changing the diameter of a variable diameter rotor
- Patent number 5,299,912
- Issue date Apr 5, 1994
- United Technologies Corporation
- Evan A. Fradenburgh
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Variable diameter rotor having an offset twist
- Patent number 5,253,979
- Issue date Oct 19, 1993
- United Technologies Corporation
- Evan A. Fradenburgh
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Adjustment means for helicopter rotor blade viscous damper
- Patent number 5,116,201
- Issue date May 26, 1992
- United Technologies Corporation
- Evan A. Fradenburgh
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Filament wound structure for use as a torque drive
- Patent number 4,666,753
- Issue date May 19, 1987
- United Technologies Corporation
- David G. Matuska
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Helicopter main rotor blade having a short span slot near the tip end
- Patent number 4,655,685
- Issue date Apr 7, 1987
- United Technologies Corporation
- Evan A. Fradenburgh
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Composite flexbeam for a rotary wing aircraft
- Patent number 4,648,800
- Issue date Mar 10, 1987
- United Technologies Corporation
- Evan A. Fradenburgh
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Method of forming a fiber reinforced composite article of a complex...
- Patent number 4,591,400
- Issue date May 27, 1986
- United Technologies Corporation
- Evan A. Fradenburgh
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Helicopter blade with a tip having a selected combination of sweep,...
- Patent number 4,324,530
- Issue date Apr 13, 1982
- United Technologies Corp.
- Evan A. Fradenburgh
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Hingeless helicopter rotor with elastic gimbal hub
- Patent number 4,323,332
- Issue date Apr 6, 1982
- United Technologies Corporation
- Evan A. Fradenburgh
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Helicopter blade
- Patent number 4,248,572
- Issue date Feb 3, 1981
- United Technologies Corporation
- Evan A. Fradenburgh
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Helicopter
- Patent number 4,216,924
- Issue date Aug 12, 1980
- United Technologies Corporation
- Evan A. Fradenburgh
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Simplified rotor head fairing
- Patent number 4,212,588
- Issue date Jul 15, 1980
- United Technologies Corporation
- Evan A. Fradenburgh
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Mechanism for synchronously varying diameter of a plurality of roto...
- Patent number 4,142,697
- Issue date Mar 6, 1979
- United Technologies Corporation
- Evan A. Fradenburgh
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Locking control and overtravel safety stop system for variable leng...
- Patent number 4,080,097
- Issue date Mar 21, 1978
- United Technologies Corporation
- Lee N. Hager
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Locking control and overtravel safety stop system for variable leng...
- Patent number 4,074,952
- Issue date Feb 21, 1978
- United Technologies Corporation
- Evan A. Fradenburgh
- B64 - AIRCRAFT AVIATION COSMONAUTICS

Evan A. Fradenburgh

Person

Patents Grantslast 30 patents

Rotor system having alternating length rotor blades and positioning...

Drive system for changing the diameter of a variable diameter rotor

Variable diameter rotor having an offset twist

Adjustment means for helicopter rotor blade viscous damper

Filament wound structure for use as a torque drive

Helicopter main rotor blade having a short span slot near the tip end

Composite flexbeam for a rotary wing aircraft

Method of forming a fiber reinforced composite article of a complex...

Helicopter blade with a tip having a selected combination of sweep,...

Hingeless helicopter rotor with elastic gimbal hub

Helicopter blade

Helicopter

Simplified rotor head fairing

Mechanism for synchronously varying diameter of a plurality of roto...

Locking control and overtravel safety stop system for variable leng...

Locking control and overtravel safety stop system for variable leng...