Nut

Details Nut Nut

1977-10-06

1980-04-01

Holko, Thomas J.

Brushing, scrubbing, and general cleaning

F16B 3928

Patent

active

041956788

ABSTRACT:
A free spinning nut is formed with an asymmetric, double size recess in its bearing face and flutes in its side faces so as to enhance its holding capacity, particularly when used against softer material.

REFERENCES:
patent: 333362 (1885-12-01), Urseruck
patent: 1420725 (1922-06-01), Mattson
patent: 1588478 (1926-06-01), Lerch
patent: 1734445 (1929-11-01), Place
patent: 2210455 (1940-08-01), Hosking
patent: 2249921 (1941-07-01), Van Sant
patent: 2931410 (1960-04-01), Stoll
patent: 3087525 (1963-04-01), Nyswaner et al.
patent: 3342236 (1967-09-01), Clark
patent: 3823526 (1974-07-01), Rose
patent: 3989082 (1976-11-01), Pinchback

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