Method of forming anchor bolts

Details Method of forming anchor bolts Method of forming anchor bolts

1982-05-07

1984-04-17

Combs, E. Michael

B21K 174

Patent

active

044425627

ABSTRACT:
The outer prongs and inner expander of an anchor bolt are formed from a cylindrical metal blank with an axis, by lengthwise cutting the blank in planes which subtend different parts of the blank periphery and are inclined inwardly toward one end of the blank at identical wedge angles to the axis, whereby the blank is divided into separate prongs and a common expander, with the prongs and expander having plane companion wedge faces, respectively, and the prongs having cylindrical gripping surfaces.

REFERENCES:
patent: 1111749 (1914-09-01), Joseph
patent: 1424539 (1922-08-01), Wilcox
patent: 3352193 (1967-11-01), Lerich

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