Double ducted hovering air-vehicle

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C244S05300R, C244S054000, C244S017110, C244S017250

Reexamination Certificate

active

07658346

ABSTRACT:
A dual ducted fan arrangement in which the duct components, engine, and avionics/payload pods are capable of being quickly disassembled to fit within common backpacking systems. Each duct is identical in fan, stator, and control vane design. Assembly connections between ducted fans and electronic modules are also identical. An engine or APU drives the dual ducted fans through a splined shaft to a differential or through electric motors. Energy is transferred to the ducted fans by a single gear mounted to the stator hub. Relative speeds of the individual ducted fans are controlled through separate frictional or generator load control braking mechanisms on each of the splined shafts between the differential and ducted fans. In the electric motor case relative speed is through electronic speed control. The fans are counter rotating for torque balancing. The electronic module locations are vertically variable for longitudinal center of gravity for variations in payloads.

REFERENCES:
patent: 2037745 (1936-04-01), Vaughn
patent: 2417896 (1947-03-01), Zimmerman
patent: 2997258 (1961-08-01), Purpura
patent: 3023980 (1962-03-01), Martin et al.
patent: 3393882 (1968-07-01), Soulez-Lariviere et al.
patent: 3768757 (1973-10-01), Eickmann
patent: 3972490 (1976-08-01), Zimmermann et al.
patent: 4071206 (1978-01-01), Magill
patent: 4982914 (1991-01-01), Eickmann et al.
patent: 5086993 (1992-02-01), Wainfan et al.
patent: 5145129 (1992-09-01), Gebhard
patent: 5150857 (1992-09-01), Moffitt et al.
patent: 5170963 (1992-12-01), Beck, Jr.
patent: 5226350 (1993-07-01), Cycon et al.
patent: 5277380 (1994-01-01), Cycon et al.
patent: 5297759 (1994-03-01), Tilbor et al.
patent: 5351913 (1994-10-01), Cycon et al.
patent: 5372337 (1994-12-01), Kress et al.
patent: 5407150 (1995-04-01), Sadleir
patent: 5419513 (1995-05-01), Flemming, Jr. et al.
patent: 5575438 (1996-11-01), McGonigle et al.
patent: 5779188 (1998-07-01), Frick
patent: 5863013 (1999-01-01), Schmittle
patent: 5890441 (1999-04-01), Swinson et al.
patent: 5941478 (1999-08-01), Schmittle
patent: 6065718 (2000-05-01), Piasecki
patent: 6170778 (2001-01-01), Cycon et al.
patent: 6270038 (2001-08-01), Cycon et al.
patent: 6488232 (2002-12-01), Moshier
patent: 6502787 (2003-01-01), Barrett
patent: 6607162 (2003-08-01), Warsop et al.
patent: 6655631 (2003-12-01), Austen-Brown
patent: 6672538 (2004-01-01), Milleau et al.
patent: 6691949 (2004-02-01), Plump et al.
patent: 2002/0003188 (2002-01-01), Moshier
patent: 2002/0113165 (2002-08-01), Moshier
patent: 4302791 (1994-08-01), None
patent: PCT/US2006/004478 (2006-09-01), None
PCT International Search.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Double ducted hovering air-vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Double ducted hovering air-vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double ducted hovering air-vehicle will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4200022

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.