Expansion anchor

Details Expansion anchor Expansion anchor

1993-07-09

1995-03-28

Wilson, Neill R.

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

Having separate expander means

Bulged by axially contracting ends

411 55, 411 60, F16B 1304, F16B 1306

Patent

active

054011310

ABSTRACT:
An expansion anchor including an anchor stem having a holding flange and a lock member having a corrugated portion is inserted into a fitting hole bored in concrete or another rigid material. The anchor is secured in the bore by forcing the lock member to squash the corrugated portion. The corrugated portion thus squashed expands into engagement with the inner surface defining the bore so that the expansion anchor is steadily secured in a non-removable state.

REFERENCES:
patent: 1320623 (1919-11-01), Kennedy
patent: 1365719 (1921-01-01), Ogden
patent: 1419979 (1922-06-01), Ogden
patent: 1431176 (1922-10-01), Ogden
patent: 2150866 (1939-03-01), Sipe
patent: 2343143 (1944-02-01), Gill

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