Anchor bolt construction

Details Anchor bolt construction Anchor bolt construction

1991-07-01

1993-07-13

Wilson, Neill R.

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

Headed fastener element with nut, washer, securing means or cap

Securing means pivotable about axis transverse to fastener...

411 21, F16B 2100

Patent

active

052267687

ABSTRACT:
An expansible anchor bolt construction (10) including: a hollow cylindrical housing (20) equipped with a pair of pivoted anchor wings (12), which are forced into an expanded disposition relative to the housing (20) by the passage of a threaded bolt (13); and, a locking collar (14) disposed within the housing (20) and adapted to be engaged by the threaded bolt (13) to draw the locking collar (14) into captive engagement with the anchor wings (12).

REFERENCES:
patent: 499444 (1893-06-01), Schumann
patent: 620934 (1899-03-01), Kilgore
patent: 868353 (1907-10-01), Martin, Jr.
patent: 1024949 (1912-04-01), Munger
patent: 2404169 (1946-07-01), Gidden
patent: 3385156 (1968-05-01), Polos
patent: 3487746 (1970-01-01), Kapnek

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