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 |
| 6523479 | Amusement rides and methods Amusement rides and methods are described. The amusement rides of the present invention include roller coaster vehicles that have a controlled spin or controlled rotation in a direction or dimension independent from the track of the roller coaster. The co... | 02/25/2003 |
| 6487975 | Roller coaster car having a force-isolated passenger compartment A roller coaster ride includes a pair of spaced apart parallel tracks and a car assembly. The car assembly includes a superstructure with wheels which engage the track and a passenger compartment which is coupled to the superstructure but force-isolated f... | 12/03/2002 |
| 6158354 | Roller coaster A roller coaster device which can operate a seat together with a car to perform a perpendicular running motion such as vertical descent, vertical ascent, vertical spiral motion and the like, or in such a manner as to run backwards. The device significantl... | 12/12/2000 |
| 5433671 | Water amusement ride A transport device is provided for transporting a water ride participant from a first elevation to a second, higher elevation. The device includes a spiral transport element extending generally between the first and second elevations. The spiral transport... | 07/18/1995 |
| 5218910 | Roller coaster with pheumatic conforming seats and prone passenger arrangement to enhance the thrill of the ride A roller coaster has cars with passenger supports to hold the passengers in a substantially horizontal position within the car during the ride in seats which can be rigidly molded for each new individual passenger to conform to the unique body contours of... | 06/15/1993 |