Patent · US Expired

Water fixture control system

US5588636A · kind A · utility

71Cited by

9References

14Claims

0Family size

Assignee

Friedrich Grohe AG · DE

Inventors

Heinz-Dieter Eichholz · Iserlohn, DE
Hans-Peter Rudrich · Windischeschenbach, DE

Key dates

Filing date	Jun 8, 1995
Grant date	Dec 31, 1996
Priority date	—
Expiry date	Jun 8, 2015

Classification

Technology area (CPC G)Physics
CPC primaryG05D23/1393
WIPO fieldControl
WIPO sectorInstruments

Abstract

A fixture provided with proximity sensing for operation of the valve and contactless setting of the parameters of the control circuit for operating the valve of the fixture, can have a nonvolatile memory which is effective independently of the power supply for the control circuit so that the set parameters are maintained in the memory even on battery failure and are available to restore operation with the set parameters when power is restored.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.