Expansion anchor

Details Expansion anchor Expansion anchor

1991-06-19

1992-05-26

Wilson, Neill R.

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

Having separate expander means

Including sleeve and distinct tapered expander

411 33, 411 61, 411 65, F16B 1306

Patent

active

051161761

ABSTRACT:
An expansion anchor capable of being expanded by thrusting a lock plug into a contacted portion to spread a clamp member having acutely angular peripheral edges. When the anchor is expanded within a hole in a rigid material such as concrete, the angular edges of the clamp member bite into the rigid material, so that the anchor is no longer removable from the rigid material.

REFERENCES:
patent: 2400142 (1946-05-01), Tinnerman
patent: 2804797 (1957-09-01), Seely
patent: 4235151 (1980-11-01), Udert et al.
patent: 4917552 (1990-04-01), Crawford

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