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| Number | Title | Issue Date |
| 7341545 | Torque releasing mechanism for fitness training equipment Steel cables on fitness equipment, through repeated use, will build up undesired torque, due to irregular and unpredictable turns and spins. Such accumulated and undesired torque has a tendency to cause the cable to derail from the grooves on the gears it is suppose... | 03/11/2008 |
| 7326032 | Cooling fan with adjustable tip clearance A cooling fan comprising a fan housing and a plurality of blades rotatably disposed within a conduit through the fan housing. Each of the plurality of blades extends radially outward from a hub to a tip. The radial gap between the tips of the blades and the conduit ... | 02/05/2008 |
| 6364612 | Ceiling fan structure A ceiling fan structure including a housing, a motor casing, a fixing disc and multiple vanes. A motor is installed in the housing and enclosed in the motor casing. The motor casing is formed with multiple thread holes on a periphery of bottom face of the... | 04/02/2002 |
| 5366343 | Self-adjusting torque-responsive variable-pitch boat propeller A self-adjusting variable-pitch propeller has a drive shaft rotatable about a shaft axis in a predetermined forward rotational sense, a hub carried on the drive shaft and limitedly rotatable relative thereto about the shaft axis both in the forward rotati... | 11/22/1994 |
| 5152676 | Aspirator fan An aspirator fan is disclosed, which comprises a rotating shaft press-fitted in an impeller, a support member having an urging means and receiving one end of the rotating shaft for supporting the rotating shaft as a cantilever, and a shaft abutment member... | 10/06/1992 |
| 4752183 | Water pump A water pump having a pump impeller and a cup-like disk disposed to be movable along a rotation shaft driven by the engine, a space for passing water being formed between the pump impeller and the cup-like disk, the pump impeller and the cup-like disk bei... | 06/21/1988 |
| 4575310 | Propeller shock absorber for marine propulsion device Several embodiments of coupling arrangements for resiliently coupling a propeller to a driving shaft. In each embodiment, a first resilient means provides a resilient coupling for absorbing circumferential vibrations and a second resilient means for absor... | 03/11/1986 |
| 4443155 | Wind rotor thrust-actuated brake A new type of overspeed control system for a rotor driven by wind or some other fluid flow. The rotor support is mounted so that it can move back some small distance along the direction of the fluid flow, the rotor axis remaining in substantially the same... | 04/17/1984 |
| 4426586 | Drag responsive regulated voltage power generation Means are provided for the generation of electricity from moving fluids. More particularly, generators of the type adapted for extraction of power from moving fluids comprising blade means mounted on a rotatable shaft, coil means mounted on said shaft, an... | 01/17/1984 |
| 4405998 | Domestic mixer A mixer arranged for crushing food materials immersed in a liquid comprises a motor unit and a mixing foot. A shaft extends within the mixing foot and is coupled at one end to the motor unit. At its other end the shaft carries a mixing screw which is hous... | 09/20/1983 |
| 4381901 | Anti-cavitation marine propeller A marine propeller system comprising three individual elements, two of which are propellers mounted on a common shaft driven by a prime mover and the third being a cylindrical tube surrounding and movable relative to the two propellers, the tube having it... | 05/03/1983 |
| 4310284 | Automatically controlled wind propeller and tower shadow eliminator A propeller hub carries pivotally-mounted blades that are linked to a spring-loaded collar on the propeller shaft for automatic coning and feathering under predetermined high velocity movement along the propeller shaft to change the blade pitch angle duri... | 01/12/1982 |
| 4271781 | Outboard motor clutches An outboard motor propulsion unit which is manufactured and sold without a clutch is provided thereafter with a clutch, as follows. The spring connecting the propeller to the output shaft is removed. Interengageable clutch members are fitted to the thrust... | 06/09/1981 |
| 4066911 | Wind-driven prime mover A sail-type wind-driven prime mover is provided in which the area of the sails facing into the wind is adjustable. The prime mover comprises a drive shaft from which depend radially extending front and rear masts which support flexible sails. The area of ... | 01/03/1978 |
| 4055113 | Ventilator apparatus Ventilator apparatus which includes rotary impeller or fan structure and an electric motor for rotation thereof. A shaft joins the rotor of the electric motor to the impeller or fan structure for rotation thereof. The rotor of the electric motor, in addit... | 10/25/1977 |
