Wire thread cast insert

Details Wire thread cast insert Wire thread cast insert

1975-05-19

1976-03-23

Lanham, C. W.

Brushing, scrubbing, and general cleaning

10 86R, 85 32CS, 151 14CS, 164111, B21D 5324

Patent

active

039450708

ABSTRACT:
A threaded opening is formed in a plastic or metallic body formed by molding or casting by providing a wire in a helical configuration supported on a core member and then molding or casting the material about the helical configuration. This helical configuration or insert is initially provided with a thread pitch greater than that desired for the final threaded opening so that shrinkage of the material as it hardens adjusts the greater thread pitch of the helical insert to the desired final value.

REFERENCES:
patent: 123823 (1872-02-01), Guard
patent: 556082 (1896-03-01), Boeddinghaus
patent: 914915 (1909-03-01), Bedell
patent: 1311646 (1919-07-01), Gordon
patent: 2480966 (1949-09-01), Richardson et al.
patent: 2524480 (1950-10-01), Schenk
patent: 3112540 (1963-12-01), Kaneko et al.
patent: 3183762 (1965-05-01), Poupitch
patent: 3272250 (1966-09-01), Hattan
patent: 3880041 (1975-04-01), Markowski et al.

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