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 |
| 6408766 | Auxiliary drive, full service locomotive tender A long distance auxiliary drive tender for railroad locomotives which stores significant quantities of fuel and delivers the fuel to the locomotives while underway and which also includes traction motor drive axles powered by the locomotive generators. Th... | 06/25/2002 |
| 4986292 | Bulk storage and handling system The present invention includes a system for storing and transporting a liquid in which a series of tank cars each have a hollow tank body with an inlet and an outlet supported on a frame with a plurality of wheels on the frame. These cars are connected to... | 01/22/1991 |