Patent
1983-03-08
1985-06-04
Combs, E. Michael
72377, B21K 144, B21D 3100
Patent
active
045205213
ABSTRACT:
A structure and method of manufacture of a sleeve for an anchor bolt which has a wedge held in its bolt hole, not separate from the sleeve body. The wedge is formed by striking the sleeve from the side opposite to the bolt hole on an area smaller than the cross-sectional area of the bolt hole.
REFERENCES:
patent: 2206881 (1940-07-01), Crowley
patent: 3114921 (1963-12-01), Carusi
patent: 3169256 (1965-02-01), Siebol et al.
patent: 3186209 (1965-06-01), Friedman
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