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:
Apr. 27, 1999
Filed:
Sep. 09, 1997
Chun-Liang Chen, Pei-Tou, Taipei, TW;
Other;
Abstract
A water feed system at constant temperature keeping the hot water from mixing with the cold water in a single tank, the cold water being fed during use of the hot water, comprising a cold water filing tube, a solenoid of controlling circuit and a double layer type hot water means with a single tank, characterized in that: a cold water flexible container such as a bag is provided above a hot water storage tank, a cold water feed tube is provided on the upper portion of the cold water container; and a cold water discharging tube is connected to the single hot water storage tank, whereby under the control of a control circuit, upon use of the hot water, the cold water is fed into the closed means above the hot water storage tank while upon nonuse of the hot water, the cold water in the flexible container is compressed into the hot water storage tank, thereby keeping the hot water in the hot water storage tank at a predetermined level.