Method and apparatus for making friction locking threaded fasten

Details Method and apparatus for making friction locking threaded fasten Method and apparatus for making friction locking threaded fasten

1983-01-10

1985-04-02

Beck, Shrive P.

Coating processes

Solid particles or fibers applied

Uniting particles to form continuous coating with...

427197, 427202, 118308, 118310, 118316, 118322, 411 1, 411301, 411258, 411903, 10 10P, 10 10R, B05D 112

Patent

active

045087598

ABSTRACT:
A threaded fastener having an annular ring of yieldable friction material in the thread grooves thereof and bonded to the sides of the threads, in which the material is of substantially uniform thickness on the sides of the threads from adjacent the root to adjacent the crest thereof. In an embodiment of the invention two more adjacent but axially separated rings of friction material are provided, the annular zone or zones between adjacent rings having much less or substantially no friction material. In another embodiment, the friction material is applied primarily to the non-load bearing side of the threads in the ring.

REFERENCES:
patent: 3452714 (1969-07-01), Burke et al.
patent: 3579684 (1971-05-01), Duffy
patent: 3677801 (1972-07-01), Hardy
patent: 3974306 (1976-08-01), Inamura et al.
patent: 4223632 (1980-09-01), Cadwallader
patent: 4428981 (1984-01-01), Wallace

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