Hook-driven screw with replaceable hook

Details Hook-driven screw with replaceable hook Hook-driven screw with replaceable hook

1988-06-29

1989-08-15

Wilson, Neill R.

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

Externally threaded fastener element, e.g., bolt, screw, etc.

Multipart

411400, 411407, 2482174, F16B 1502, F16B 2300

Patent

active

048569534

ABSTRACT:
A combination of a screw with a hook includes a screw fixed on a wall having a pair of longitudinal grooves formed in a cylindrical hole in the screw, and a hook having a cylindrical shank with a pair of longitudinal extensions engageable with the two longitudinal grooves in the screw, so that a hook inserted in the screw may be replaced with another new hook or different shaped hook.

REFERENCES:
patent: 633909 (1899-09-01), Sanford
patent: 1365508 (1921-01-01), Kucewicz
patent: 1874657 (1932-08-01), Trotter
patent: 2777353 (1957-01-01), Willis

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