Patent · US Expired

Lead calcium alloy and process of making same

US4725404A · kind A · utility

3Cited by

1References

9Claims

0Family size

Assignee

Accumulatorenfabrik Sonnenschein GmbH · DE

Inventors

Winfried Reif · Berlin, DE
Magdy Abdel-Reihim · Büdingen, DE
Andreas Schuler · Lausanne, CH

Key dates

Filing date	Jun 11, 1986
Grant date	Feb 16, 1988
Priority date	—
Expiry date	Jun 11, 2006

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention is directed to a lead calcium alloy for electrode grids, the alloy being substantially antimony-free. Copper and/or sulphur in small amounts are added to said alloy in order to significantly improve the casting properties, the mechanical and the corrosion properties.

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