Patent · US Expired

Method of making lead shot

US4108927A · kind A · utility

2Cited by

3References

4Claims

0Family size

Inventors

James Francis · Lancaster, US
Brian Francis · Northampton, GB
Frederick Francis · East Cleveland, US

Key dates

Filing date	May 13, 1976
Grant date	Aug 22, 1978
Priority date	—
Expiry date	May 13, 1996

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22F9/06
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Method of making lead shot by allowing droplets of molten lead to fall into a liquid quench bath and be thereby solidified. The droplets fall through a heating zone, particularly a flame of burning gas, into the quench bath. The apparatus to be used to practice the method preferably includes a container for molten lead comprising a generally V-shaped channel member having apertures in its base to permit molten lead to pass therethrough and exit as droplets.

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