Patent · US Expired

Copper-zinc-alloy for use in drinking-water installations

US5766377A · kind A · utility

2Cited by

5References

2Claims

0Family size

Assignee

WIELAND-WERKE AG · DE

Inventors

Gert Mueller · New Albany, US
Harald Siegele · Werl, DE
Michael Bohsmann · Dettingen, DE

Key dates

Filing date	Sep 16, 1996
Grant date	Jun 16, 1998
Priority date	—
Expiry date	Sep 16, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC22C9/04
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A drinking water installation is made up of a source of drinking water and equipment for delivering the drinking water. In the equipment for delivering drinking water, a copper-zinc alloy which does not contain lead or bismuth is used. This alloy has a copper to zinc ratio of from 1.3 to 2.0 and contains at least one additive for improving the properties of the alloy. This alloy possesses superior machinability properties and yet does not pose the potential toxic hazard that lead- or bismuth-containing alloys do.

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