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Match
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Document |
Document Title |
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7229255 |
Fan with driving gear
A ceiling fan suspended from a mounting rod and comprising a transverse support. A pair of hanging fans are distally mounted on the transverse support. A motor fixed to the mounting rod and spaced...
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7093788 |
Rotating flying wing aircraft and control system
A rotating wing aircraft has a rotating fuselage and wings. The aircraft is configured to rotate with the air passing over the wings because of the rotation providing the lift needed to keep the...
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7077629 |
Multi-fan assembly
A multi-fan assembly whose revolution speed can be controlled by a member fan designed with a reverse rotating structure, which includes a housing in which is provided a rotatable member; a...
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7052242 |
Multi-fan assembly comprising a servomotor driven vertical oscillation means for each fan
A multi-fan assembly includes: a down rod assembly having a first end for fixing to a ceiling wall and having a second end provided with a canopy, a rotary assembly being fixed to a lower end of...
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6913443 |
Oscillating means for multi-fan assembly
An oscillating arrangement for a multi-fan assembly includes a down rod assembly which is provided for connecting to a hanging assembly, on the hanging assembly is provided two sets of fixing arms...
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6641367 |
Wind energy conversion apparatus
A wind energy conversion apparatus comprising a supporting structure including a number of spokes, which is rotatably journalled on a horizontal main shaft, wherein auxilliary rotors having an at...
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6602054 |
Fluid motor apparatus for amplifying thrust
An array of axially spaced rotating airfoils having funnel strips on the blades to increase the lift to drag ratio and generate thrust are rotatably driven by small motors with rotating airfoils,...
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6468036 |
Adjustable crank of swinging mechanism
An adjustable crank for adjusting the swinging-angle of a fan comprises a first and a second eccentric disks, the first disk is rotatablely inserted in the second disk, a ring-shape spring is...
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5037268 |
Dual axis wind turbine
The invention relates to our energy conversion system for converting the kinetic energy possessed by the wind into mechanical energy. The objective is to produce a controlled, tornado like,...
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4735552 |
Space frame wind turbine
A new design for large wind turbines permitting a substantial reduction in weight and cost. Lightweight airfoils comprising the turbine blades are supported within an extensive space frame system...
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4702437 |
Electric air-driven helicopter
A helicopter has a low profile electric motor mounted in each of the rotor blades to drive a cross-flow fan which draws air in through a slot at the leading edge of the blade and forces it out...
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4585392 |
Bladed rotor system and pitch controls therefor
A rotor system for a helicopter having a power shaft carrying at least one pair of diametrically opposite frames for rocking motion about an axis radially of said shaft. Sets of lift blades carried...
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4525125 |
Pressure responsive pump control system having an alarm lamp
A pump control system has a vacuum pump driven by a DC motor to supply a negative pressure to a container first power and driving transistors which are interconnected to energize the DC motor,...
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4509899 |
Traversing blade-rotary propeller
A traversing blade rotary propeller useful as a propulsion system for various types of boats and aircraft or as a wind or water actuated turbine. A traversing blade rotary propeller of this type...
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4482110 |
Cyclorotor composite aircraft
A composite aircraft comprising a system of airfoils rotating about a horizontal axis providing lift and thrust in combination with a lighter-than-air gas containment bag providing bouyant lift;...
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4311918 |
Wind powered generator with gravity assisted mechanical advantage booseter
The wind powered mechanical and electric power generator, is a process and apparatus which uses the mechanical advantage of a lever arm to multiply the energy of a moving or mobile weight which is...
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4302152 |
Anti-moment gyro for windmill
An improvement to rotating blades is disclosed in a device that will impose anti-moment forces and result in less stress in the said rotating member. The device consists of a rotating body or gyro...
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3762669 |
HIGH-SPEED HELICOPTER
A helicopter craft has a fuselage with a longitudinal axis, and a rotary wing lift system providing at least two arms above and carried by the fuselage, with each arm radiating from and turnable...
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3360219 |
Aircraft having air blast powered lifting rotor
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3247906 |
Aircraft
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3246861 |
Convertible aircraft
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3181816 |
Fettered rotary wing aircraft
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3085630 |
Rotary wing aircraft
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3065799 |
Rotary wing aircraft
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3061243 |
Lift fan support arrangement for aircraft
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3013746 |
Flying machine and more particularly helicopter
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2984304 |
Helicopter lifting rotor having a propulsion unit at the blade tip
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