Water mixing valve

US4921016A · kind A · utility

Assignee

• Friedrich Grohe Armaturenfabrik GmbH & Co. · DE

Inventors

• Werner Gnauert · Iserlohn, DE
• Horst Titze · Hagen, DE

Key dates

• Filing date: Sep 7, 1989
• Grant date: May 1, 1990
• Expiry date: Sep 7, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/86815
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A water mixing valve has an axially shiftable bottom pressed by water pressure against the valve seat disk in a housing for the assembly which allows the assembly to be inserted as a unit into the valve. The openings in the bottom have constrictions against which tubular seals press to provide the axial force which prevents a gap from forming between the bottom and the valve seat disk.