Self-penetrating wallboard anchor

Details Self-penetrating wallboard anchor Self-penetrating wallboard anchor

1979-09-26

1981-08-18

Britts, Ramon S.

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...

411341, 411346, F16B 2100

Patent

active

042839866

ABSTRACT:
A self-penetrating fastener assembly for anchoring in wallboard has a pointed anchor member and a threaded fastener. The anchor member has a longitudinal recess formed by semicylindrical segments which intersects an aperture that extends through the anchor. The fastener is aligned within the recess which engages the threads of the fastener, the head thereof protruding beyond the end of the anchor and the assembly is hammered into the wallboard. When the anchor clears the wallboard, the fastener is threadingly advanced into the anchor which, in turn, is drawn up against the back of the wallboard securely attaching an article thereto.

REFERENCES:
patent: 867799 (1907-10-01), Cook
patent: 1738133 (1929-12-01), Anderson
patent: 2439364 (1948-04-01), King et al.
patent: 2519511 (1950-08-01), Stelter
patent: 2532040 (1950-11-01), Seely
patent: 2919089 (1959-12-01), Durham
patent: 3605547 (1971-09-01), Millet
patent: 3782238 (1974-01-01), Polos
patent: 3927597 (1975-12-01), Stults et al.
patent: 4043245 (1977-08-01), Kaplan
patent: 4196883 (1980-04-01), Einhorn

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