Impact-type expansible plug for anchoring in a cylindrical drill

Details Impact-type expansible plug for anchoring in a cylindrical drill Impact-type expansible plug for anchoring in a cylindrical drill

1993-07-09

1994-08-30

Wilson, Neill R.

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

Having separate expander means

Including sleeve and distinct tapered expander

411 72, 411908, F16B 1306

Patent

active

053421574

ABSTRACT:
An impact-type expansible plug for anchoring in a cylindrical drilled hole of a concrete part and the like has an expansion sleeve provided with at least one longitudinal slot and expandable in a drilled hole, and also has an expansion sleeve with a conically narrowing internal bore, and an expansion mandrel drivable into the conically narrowing internal bore of the expansion sleeve. The expansion sleeve has a forward end provided with an annular collar having a radially directed circumferential cutting edge, and also has a portion tapering toward the annular collar.

REFERENCES:
patent: 1000715 (1911-08-01), Caywood
patent: 1392108 (1921-09-01), Bilterman
patent: 2370327 (1945-02-01), Rosan
patent: 2616328 (1952-11-01), Kingsmore
patent: 2707897 (1955-05-01), Beeson
patent: 3916480 (1975-11-01), Smith
patent: 4488843 (1984-12-01), Achille
patent: 5002445 (1991-03-01), Fischer
patent: 5176481 (1993-01-01), Schiefer

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