Penn Jillette of Penn and Teller fame has patented a "Hydro-Therapeutic Stimulator", which uses a hot tub for stimulation.
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| Number | Title | Issue Date |
| 7441531 | Reverse rotation preventing mechanism for diesel engine The invention prevents reverse rotation of a diesel engine which is possible to occur when the engine is started. A camshaft 13 is driven by a crankshaft 5 through power transmission means, and cams 14, 21 and 22 are provided on camshaft ... | 10/28/2008 |
| 7082644 | Handle extension for rotating a crank handle A handle extension for rotating a crank handle includes an elongate shaft having a first end and a second end. A member with a receptacle for engaging the crank handle is mounted at the first end of the shaft. When the second end of the shaft is grasped and a rotati... | 08/01/2006 |
| 4766856 | Starting handle for internal combustion engines A starting handle for internal combustion engines. A hand crank and a starting shaft are connected to an appropriate element of the engine to be started. A driving mechanism is provided between the hand crank and the starting shaft, so that when the hand ... | 08/30/1988 |
| 4716868 | Hand starter crank with integrated safety device A manual starter crank has an integrated safety device providing protection against backfiring during starting of an internal combustion engine. The manual starter crank has a starter shaft which, when turning in a starting direction, engages the free end... | 01/05/1988 |
| 4556021 | Device for manually starting an internal combustion engine A device for manually starting an internal combustion engine includes a rotatably supported shaft, a hand crank, and a safety mechanism operatively coupling the hand crank and shaft and adapted to interrupt the transmission of power therebetween in the ev... | 12/03/1985 |
| 4493299 | Apparatus for giving engines positive effect Apparatus for use in internal combustion engines requiring positive application for controlling transmitted pulses comprising: a base element mating with the front of the engine and having an inner cavity about a central axis. An overrunning clutch assemb... | 01/15/1985 |
| 4471733 | Starter for internal combustion engine A mechanical starter for internal combustion engines in which the energy necessary to start the internal combustion engine is provided by elastomeric elements which are stretched by winding them around a nucleus composed of a plurality of mutually contact... | 09/18/1984 |
| 4353335 | Hand starting mechanism for an internal combustion engine A hand starting mechanism for an internal combustion engine includes an axially displaceable starting shaft. The starting shaft has a one way dog coupling which couples the starting shaft to the shaft to be cranked during the starting procedure but which ... | 10/12/1982 |