Anchor bolt anchorable by explosive charge

Details Anchor bolt anchorable by explosive charge Anchor bolt anchorable by explosive charge

1995-12-15

1997-07-15

Tsay, Frank

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Having separate expander means

Fluent pressure actuated

4052591, 4052593, F16B 1912, E21D 2100

Patent

active

056477090

ABSTRACT:
An anchor bolt to be anchored by an explosive charge in a blind bore in a solid material, in particular a rock face or concrete, has a deformation chamber containing the explosive charge. To achieve inexpensive manufacture of the anchor bolt, simple mounting and high withdrawal values of the anchor bolt to be anchored, the deformation chamber open towards the leading end of the anchor bolt is closed by a stopper. A striking pin projecting beyond the leading end of the anchor bolt is inserted and guided in the stopper, so that as the rear end of the anchor bolt is hit the striking pin contacts an ignition capsule arranged between the stopper and the explosive charge.

REFERENCES:
patent: 1277370 (1918-09-01), Bovard
patent: 2573880 (1951-11-01), Temple
patent: 2618192 (1952-11-01), Temple
patent: 2883910 (1959-04-01), Nessler
patent: 3148577 (1964-09-01), Parsons
patent: 3196746 (1965-07-01), Dahl
patent: 4511296 (1985-04-01), Stol
patent: 4813804 (1989-03-01), Adini
patent: 4909686 (1990-03-01), Bender et al.
patent: 5116175 (1992-05-01), Adini

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