Dual expansion and non-expansion anchor

Details Dual expansion and non-expansion anchor Dual expansion and non-expansion anchor

1988-08-15

1989-11-28

Wilson, Neill R.

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

Having separate expander means

Including sleeve and distinct tapered expander

411 65, 411387, 52426, F16B 2500, F16B 1306

Patent

active

048833967

ABSTRACT:
A dual expansion and non-expansion anchor comprising a pair of inner and outer expansion fasteners connected to each other by means of a screw-threaded connecting tie, said expansion fasteners being adjustable on the connecting tie to adjust to the spaced positions of an inner supporting structure and an outer supported wall. Insertion limiting means is provided to limit insertion of the inner fastener into the inner supporting structure in order to fix the position of said inner fastener in said supporting structure. Torque applying means applied to the connecting tie inserts and sets the inner fastener. Torque applying means applied to a nut on the connecting tie expands the outer expansion fastener.

REFERENCES:
patent: 683082 (1901-09-01), Summerer
patent: 2525198 (1950-10-01), Beijl
patent: 2573928 (1951-11-01), Peter
patent: 3139730 (1964-07-01), Williams et al.
patent: 4078471 (1978-03-01), Archibald et al.

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