Non-fogging shower mirror using parallel water connection

Details Non-fogging shower mirror using parallel water connection Non-fogging shower mirror using parallel water connection

1997-12-17

1999-09-14

Nguyen, Thong

Optical: systems and elements

Protection from moisture or foreign particle

Fluid directed across optical element

359507, 359512, G02B 508, G02B 7182

Patent

active

059531576

ABSTRACT:
A fog-free shower mirror assembly comprises a mirror body (16) and an arm (18) connecting the body to a showerhead pipe (12). The arm is connected to the pipe by a T-fitting (14) that diverts warm water from the pipe to the mirror body. The T-fitting also returns the water after it passes through a heat transfer tube (56) in the mirror body. The arm is flexible and contains two inner tubes (36 and 38) for supply and return of the water. The arm is connected to the mirror body by a swivel fitting (20). The mirror body contains a thermal transfer disc (58) positioned between the heat transfer tube and the back of the mirror. Heat from the water in the heat transfer tube is thereby transferred to the mirror to keep it above the condensation point so as to maintain it fog-free. An additional mirror (68) that also is heated by heat from the heat transfer tube may be provided on an opposite side of the mirror body, also in thermal contact with the transfer tube. The two mirrors preferably are magnifying and non-magnifying, respectively.

REFERENCES:
patent: Re32906 (1989-04-01), Jones
patent: 2759765 (1956-08-01), Pawley
patent: 3530275 (1970-09-01), Rust
patent: 3594063 (1971-07-01), Smilie, III
patent: 4150869 (1979-04-01), Hansen
patent: 4327961 (1982-05-01), Kladidis
patent: 4556298 (1985-12-01), Gottlieb
patent: 4557003 (1985-12-01), Jones
patent: 4655559 (1987-04-01), Odell
patent: 4832475 (1989-05-01), Daniels
patent: 4836668 (1989-06-01), Christianson

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