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:
Aug. 30, 1988
Filed:
Apr. 17, 1987
Jan R Kostorz, Menden, DE;
Dieter Kahle, Iserlohn, DE;
Friedrich Grohe Armaturenfabrik GmbH & Co., Hemer, DE;
Abstract
A self-regulating mixing valve has a main housing having hot- and cold-water inlets, compartments, and valve seats. A valve body is displaceable axially in the housing between one end position engaging the hot-water seat and an opposite end position engaging the cold-water seat, blocking flow from the cold-water inlet compartment to the outlet compartment, and out of engagement with the hot-water seat and permitting flow from the hot-water inlet compartment to the outlet compartment. On moving between these end positions the valve body passes through intermediate positions permitting flow from both inlet compartments past the respective seats into the outlet compartment. A fitting body fixed in the housing and defining a wall of the outlet compartment is formed with a throughgoing hole opening into the outlet compartment. A thermostat in the outlet compartment is fixed with the valve body to a tubular stem engaged through and limitedly axially movable in the hole of the fitting body. A seal ring engages around the stem to seal the hole and a spring is braced between the housing and the stem outside the outlet compartment to pull the thermostat and valve body into solid engagement with the fitting body. A temperature-selecting mechanism engages via the stem with the thermostat and operatively engages via the thermostat with the valve body.