Method for the manufacture of fasteners

Details Method for the manufacture of fasteners Method for the manufacture of fasteners

1975-04-28

1976-11-30

Smith, Ronald H.

Coating processes

Solid particles or fibers applied

Interior or hollow article coating

427195, 427235, 427236, 427238, 427239, 427345, B05D 722, B05D 302

Patent

active

039950743

ABSTRACT:
A method is provided for the continuous manufacture of self-locking internally threaded fasteners having a locking body or patch comprised of resilient thermoplastic material, applied to the fastener in powder form. A support member having a plurality of cavities for receiving said fasteners, and a nozzle associated with each of said cavities, is moved along a path through a plurality of locations wherein the fastener is deposited at a cavity aligned with a respective nozzle at a first location, material is forced through the nozzle onto the fastener at a second location, the fasteners are removed from the respective support at a third location, and the nozzles are purged of material at a fourth location prior to the initiation of a subsequent sequence of operations by the apparatus.

REFERENCES:
patent: 3291631 (1966-12-01), Smith
patent: 3294139 (1966-12-01), Preziosi
patent: 3385261 (1968-05-01), Wittemann et al.
patent: 3452714 (1969-07-01), Burke et al.
patent: 3530827 (1970-09-01), Burke
patent: 3592676 (1971-07-01), From et al.
patent: 3720533 (1973-03-01), Gallagher
patent: 3797455 (1974-03-01), Scheffer
patent: 3858262 (1975-01-01), Duffy

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