Cover hold down mechanism

Details Cover hold down mechanism Cover hold down mechanism

1980-10-02

1983-07-26

Holko, Thomas J.

Closure fasteners

Bolts

Sliding and swinging

24221R, 292212, 292251, 29225675, 411349, E05C 504

Patent

active

043950620

ABSTRACT:
This invention pertains to a screw-nut mechanism for clamping two work pis together. In one application the mechanism is used to clamp a cover plate over an access opening in a vehicle hull or similar member. The screw-nut mechanism is specially designed for use where one face of the hull or similar fixed work piece is inaccessible for welding or otherwise affixing the nut on the concealed face of the inaccessible work piece. I provide a screw-nut mechanism that avoids the necessity for affixing the nut to the work piece. In my invention the nut is a loose hardware item that can have a thread length proportional to the expected load, thereby avoiding strength problems associated with the formation of threads directly in relatively thin work pieces.

REFERENCES:
patent: 832093 (1906-10-01), Stoltzfus
patent: 912930 (1909-02-01), Alderman
patent: 1327011 (1920-01-01), Arndt
patent: 1551311 (1925-08-01), Klein et al.
patent: 1876237 (1932-09-01), Jackson
patent: 2181278 (1939-11-01), Lantz
patent: 2334012 (1943-11-01), Koch et al.
patent: 2873991 (1959-02-01), Larimore
patent: 3244442 (1966-04-01), Arbogast
patent: 3443783 (1969-05-01), Fisher

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