Anchoring plug

Details Anchoring plug Anchoring plug

1992-12-07

1993-07-06

Wilson, Neill R.

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

Having separate expander means

With hole forming means

411 55, 411 60, F16B 1304, F16B 1306

Patent

active

052248054

ABSTRACT:
An anchoring plug made from a hard-elastic plastic material having a closed shank part 1 and two mutually opposite spreading fingers 2 and 3. A screw hole 10, extends through the shank part 1 down into a central space 12 between the spreading fingers for receipt of a screw 18. To be able to drive the plug directly into gypsum board without having to first drill a hole, one spreading finger 2 is longer than the other spreading finger and has a hook-shaped tip 4 forming a recess 5 at its free end. Initially the end of the shorter spreading finger 3 nests in this recess to provide a pointed end to the plug, but springs free of the recess when a screw is screwed into the plug.

REFERENCES:
patent: 3315558 (1967-04-01), Fischer
patent: 3342098 (1967-09-01), Schuplin
patent: 3431813 (1969-03-01), Johnson
patent: 4462729 (1984-07-01), Uhlig et al.
patent: 4765788 (1988-08-01), Nowak et al.
patent: 4874277 (1989-10-01), Nowak et al.
patent: 5100273 (1992-03-01), Vassiliou

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