The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 1999
Filed:
Dec. 17, 1997
Thomas R Christianson, Napa, CA (US);
Showertek, Inc., American Canyon, CA (US);
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.