Patent · US Expired

Lead dosing valve

US4114649A · kind A · utility

1Cited by

9References

9Claims

0Family size

Assignee

Varta Batterie Aktiengesellschaft · DE

Inventors

Hans-Georg Lindenberg · Wangen im Allgäu, DE
Joachim Illmann
Hans-Joachim Golz · Hannover, DE

Key dates

Filing date	Jun 25, 1976
Grant date	Sep 19, 1978
Priority date	—
Expiry date	Jun 25, 1996

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/86751
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A valve body has outlet ducts to be positioned below the surface of the molten lead, and a head rotatable with respect to the body. The head has recesses which terminate in slots that can be aligned with the outlet ducts to open the valve. These slots have smaller cross-sections than the ducts. The body also has open ended passages which align with the outlet ducts when the valve is closed.

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