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.

Date of Patent:
Sep. 15, 2026

Filed:

Sep. 16, 2024
Applicant:

Toto Ltd., Fukuoka, JP;

Inventors:

Hajime Suzuki, Fukuoka, JP;

Hideyuki Matsui, Fukuoka, JP;

Naoki Amamoto, Fukuoka, JP;

Shota Watanabe, Fukuoka, JP;

Fumihiro Suetsugu, Fukuoka, JP;

Assignee:

Toto Ltd., Fukuoka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 11/02 (2006.01); F16K 11/20 (2006.01); F16K 11/00 (2006.01);
U.S. Cl.
CPC ...
F16K 11/02 (2013.01); F16K 11/207 (2013.01); F16K 19/006 (2013.01);
Abstract

A hot water and cold water mixing apparatus includes: a valve body configured to adjust introduction amounts of cold water and hot water by moving in an axial direction; a valve case covering an outer side of the valve body; and an annular partition member arranged between an outer surface of the valve body and an inner surface of the valve case and configured to divide a gap therebetween into a cold water gap and a hot water gap. A groove portion is provided on the inner surface of the valve case. The annular partition member comes into close contact with a side wall of the groove portion and with the outer surface of the valve body and does not come into close contact with the inner surface of the valve case, under a state in which there is a differential pressure between the cold and hot water gaps.


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