Blind screw anchor

Details Blind screw anchor Blind screw anchor

1984-05-24

1987-04-14

Smith, Gary L.

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

Having separate expander means

Bulged by axially contracting ends

411 61, F16B 1304

Patent

active

046574565

ABSTRACT:
A blind screw anchor, made of one piece of metal, has a shank, constituted by sleeve portions connected together by uniformly spaced links. A head flange is integrally connected to an adjacent sleeve portion at one end of the shank by a bridge piece bent at right angles to bring the head flange against the shank at that end. A tail cap piece is similarly connected to the sleeve portion at the other end of the shank and bent into abutting engagement therewith.
The anchor, made of one piece of sheet metal, is economical to manufacture in a multistage strip forming press. It is especially useful for securing articles to hollow partition walls.

REFERENCES:
patent: 907393 (1908-12-01), Newhall
patent: 1208999 (1916-12-01), Malaby
patent: 1293844 (1919-02-01), Malaby
patent: 2293491 (1942-08-01), Cox
patent: 2401427 (1946-06-01), Kimbell
patent: 2409702 (1946-10-01), Luce
patent: 2559281 (1951-07-01), Croessant
patent: 2753750 (1956-07-01), Dempsey
patent: 2762252 (1956-09-01), Karitzky
patent: 3363501 (1968-01-01), Modrey
patent: 3888156 (1975-06-01), Fima
patent: 3910156 (1975-10-01), Soltysik

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