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. 25, 1989
Filed:
Sep. 20, 1988
Applicant:
Inventor:
Heinz Graber, Oberkulm, CH;
Assignee:
KWC AG, Unterkulm, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ; F16K / ;
U.S. Cl.
CPC ...
13762541 ; 13761416 ; 13761417 ; 251 64 ;
Abstract
The hot and cold water mixing device contains a rotary slide which controls in opposite sense the inflow of cold and hot water. The rotary slide is provided with a device for suppressing the flow of hot and cold water through the rotary slide. In order to render the mixing valve smooth in operation and to simplify its construction, without eliminating the advantages of such construction of mixing device, the flow suppressing device is formed by a closure portion or element of a servo valve, and the rotary slide is structured to serve as a seat for such closure portion or element.