Automatic temperature and humidity regulation – Thermostatic – In fluid controlled
Patent
1995-02-06
1997-12-02
Tapolcai, William E.
Automatic temperature and humidity regulation
Thermostatic
In fluid controlled
236101D, G05D 2309
Patent
active
056926758
ABSTRACT:
The apparatus consisting of a rotating shield mounted in front of the shower head with a pattern of holes that, when aligned with a corresponding pattern of holes in the shower nozzle, allow the water to pass through to the bather. The shield is turned into or out of alignment by a bi-metal thermally sensitive spring which, sensing too hot or too cold water, rotates clockwise or counter clockwise. The water is then blocked by the shield and, its momentum now diminished, pours out of an opening in the bottom of the shower head where it can be hand tested and adjusted by the bather. When the proper temperature is achieved, the bi-metal spring turns the guard plate holes into alignment with the shower nozzle outlet holes and water is allowed to spray onto the bather. A water mixing/buffer chamber located between the thermal element and the outlet nozzle affords the unit time to respond to incoming water appropriately by taking a measure of time to fill up. It also tempers the temperature of the water exiting the unit during the split second that the guard plate holes pass over the shower nozzle holes when rotating from one off position to another.
REFERENCES:
patent: 1806630 (1931-05-01), Giesler
patent: 2200248 (1940-05-01), Hoffman
patent: 2801708 (1957-08-01), Fisher
patent: 2902262 (1959-09-01), Morse
patent: 3291391 (1966-12-01), Mesco
patent: 3318524 (1967-05-01), Kehm
patent: 4281790 (1981-08-01), McGinnis
patent: 4543941 (1985-10-01), Newell
patent: 5110045 (1992-05-01), Glasson et al.
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