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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 |
| 7401742 | Fluid circulation apparatus for temporary heating A temporary heating apparatus comprises a portable heat exchanger which transfers heat from a hot fluid circulating in a primary circulation loop thereof to a heated liquid circulating in a secondary circulation loop thereof. The heat exchanger is connectable to a h... | 07/22/2008 |
| 6736329 | Heating unit for heat-transfer fluid for a central heating installation A heating unit for heat-transfer fluid for a central heating installation including a tubular external wall, a first end wall and a second end wall forming a substantially cylindrical space; a first tubular internal partition located substantially concentrically wit... | 05/18/2004 |
| 6619557 | High-efficiency system for the thermoregulation of a room by silent radiant panels, particularly equipped to operate as doors A system for the thermoregulation of a room, including radiant panels, wherein the radiant panels are built up from thin rectangular cross-section channel elements which are assembled side-by-side, by inserting them by extremities thereof into slits made ... | 09/16/2003 |
| 4527733 | Check valve A thermostatic valve including a housing that defines a housing inlet and a housing outlet and a valve body having an end wall and a side wall that define a valve chamber within the housing. The end wall defines an annular valve seat and a valve inlet ope... | 07/09/1985 |
| 4398663 | Heating system with steam radiators A building heating system with a plurality of steam radiators is provided with a control unit for the steam boiler. The control unit receives signals representative of the outside temperature and the pressure of the steam in the feeder conduit. The contro... | 08/16/1983 |
