Bizarre Patents
User-operated amusement apparatus for kicking the user's buttocks
An apparatus including a user-operated and controlled apparatus for self-infliction of repetitive blows to the user's buttocks by a plurality of elongated arms bearing flexible extensions that rotate under the user's control.
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| Number | Title | Issue Date |
| 7174710 | Nelson flywheel power plant improvement An improvement to the Nelson Flywheel Power Plant comprising a piston (100 and 101) in each outer chamber (40 and 41) situated at the interface of the compressible fluid and incompressible fluid (120) and slidably adjoining the cen... | 02/13/2007 |
| 6786128 | Fluid motor A fluid motor has a rotor mounted within a housing internal space. A piston positioned within the rotor and may be mounted to an output shaft. The output shaft is driven by applying pressure difference from a fluid both across the rotor within the internal space and... | 09/07/2004 |
| 6487957 | Fluid-operated cylinder providing linear and rotary motion In a preferred embodiment, a fluid-operated cylinder to provide both linear and rotary motion to tooling, including: a cylindrical, rotatable member for attachment to rotatable means; a circular piston disposed in the cylindrical, rotatable member for bac... | 12/03/2002 |
| 5501137 | Hydraulic machine-tool actuator with position detectors An actuator has a cylinder centered on an axis and a piston axially displaceable in the cylinder, defining therein axially opposite front and rear compartments, and having an axially rearwardly projecting stem. A distributor is axially fixed but rotatable... | 03/26/1996 |
| 5438912 | Hydraulic rotary actuator An hydraulically powered rotary actuator for rotating a first portion of a work machine relative to a second portion of the work machine has inner and outer rings enclosed by first and second cover plates. The inner and outer rings are spaced apart to def... | 08/08/1995 |
| 4175418 | Temperature monitoring and temperature differential control device An electronic device is provided for use in monitoring and controlling the curing of live food products, specifically grain, in a storage environment. The device includes a first temperature sensing unit, a second temperature sensing unit, a comparator un... | 11/27/1979 |
| 4106443 | Rotary internal combustion engine A rotary internal combustion engine is described and shown having two piston and cylinder assemblies rotating about a single axis. The pistons reciprocate in rotating cylinders having a four cycle internal combustion engine process to receive air and fuel... | 08/15/1978 |
| 4010675 | Two stroke mechanism with rotary piston and cylinder-piston movement A two stroke mechanism is described which has rotary moveable piston and cylinder-piston elements. The piston and cylinder-piston elements both rotate within a stationary body forming two variable volume chambers. The first variable volume chamber formed ... | 03/08/1977 |
| 3974803 | Internal combustion engine with gyratory piston and cylinder movement An internal combustion engine wherein a piston element with rectilinear sides operates within a movable cylinder-piston element having rectilinear sidewalls, and wherein the combustion chamber has a polyhedral shape. Rotatable crankshafts are mounted in e... | 08/17/1976 |
