Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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| Number | Title | Issue Date |
| 6908277 | Speed governor for a pneumatic rotation motor A speed governor for a pneumatic rotation motor having a pressure air inlet passage (15, 15′), an inlet valve (16; 56) including a flow controlling valve element (18; 58) located in the inlet passage (15, 15′), and a speed responsive ... | 06/21/2005 |
| 4797074 | Governor device Disclosed is a speed controller of the ball cone type having a unique conical head which serves as a face seal valve and further encloses seals and protects the governor against entry of particulate matter.... | 01/10/1989 |
| 4772186 | Automatic fluid torque responsive shut-off mechanism for an air tool An improved torque control mechanism for a rotary vane, air motor tool includes acceleration and speed responsive slidable elements positioned in grooves that lie in a plane transverse to the spin axis of the motor and which form an angle with the radii e... | 09/20/1988 |
| 4729436 | Ball and disc over-speed shut-off mechanism for a rotary pneumatic tool A rotary pneumatic tool includes an over-speed shut-off mechanism including a shiftable spring washer and flyweights for imparting a shifting force to the spring washer dependent on the speed of the tool. In the preferred embodiment, the spring washer is ... | 03/08/1988 |
| 4586884 | Pneumatic power tool with speed governor In a pneumatically powered portable tool there is provided a speed governor and an overspeed safety device the purpose of which are to ensure a predetermined maximum speed by controlling the air inlet flow to the motor. A cup-shaped shell insert (28) is d... | 05/06/1986 |
| 4465443 | Pneumatic power tool with speed governor and overspeed safety device In a pneumatically powered portable tool there is provided a speed governor and an overspeed safety device the purpose of which are to ensure a predetermined maximum speed by controlling the air inlet flow to the motor. A cup-shaped shell insert (28) is d... | 08/14/1984 |
| 4443164 | Secondary speed sensor for governed air grinders The present invention comprises a combined speed sensor and control valve for a rotary fluid motor such as a rotary vane air motor. Weights are pivotally attached to the opposite sides of the rotating output shaft of the air motor and are spring biased in... | 04/17/1984 |
| 4298317 | Overspeed safety device In a pneumatically powered grinding machine provided with a flyweight operated speed governor there is incorporated an independently operating overspeed safety device which in case of malfunction of the speed governor is intended to obstruct further motiv... | 11/03/1981 |
| 4278103 | Overspeed control means for pneumatic tools An overspeed control means for pneumatic tools which includes a split ring valve slidably arranged in a circumferential groove formed in a cage member affixed to the rotor shaft of the tool. When the cage member exceeds a predetermined rotational speed, t... | 07/14/1981 |
| 4265604 | Rotary pneumatic tool with valve-closing pin actuated upon overspeed A pneumatic tool includes a fluid motor with a rotor and passages for connecting the rotor with a source of fluid under pressure. A normally open valve is interposed in the passages and movable to a closed position in which it interrupts the flow of fluid... | 05/05/1981 |
| 4184819 | Secondary speed sensor for governed air grinders A speed sensor is attached to the output shaft of the rotary vane air motor. The speed sensor includes a body member which is pivotally mounted at one end on the output shaft for movement about an axis parallel to the shaft axis. The opposite end of the b... | 01/22/1980 |
| 4057113 | Pneumatically powered hand tool with speed-control governor A pneumatic hand tool comprises a housing having a compressed-gas inlet and provided with a pneumatically powered motor which carries on one side a tool holder such as a chuck and on the other side a governor. A speed-control valve is operated by the gove... | 11/08/1977 |
| 3932071 | Overspeed saftey control mechanism for rotary tools Overspeed safety control mechanism for shutting off operating air flow to the motor of a rotary surface grinding tool when the motor overspeeds beyond a rated governed maximum, including a circular body rotatable with the motor and carrying a ball valve w... | 01/13/1976 |
| 3930764 | Air tool overspeed shutoff device An overspeed shutoff device for use in a rotary pneumatic tool is disclosed. The device is operable to shut off air supply to the motor on failure of its governor to function properly in preventing overspeeding of the motor. The device includes a valve cl... | 01/06/1976 |
