Method for producing coated fastener samples

Details Method for producing coated fastener samples Method for producing coated fastener samples

1991-10-22

1992-08-25

Beck, Shrive

Coating processes

Solid particles or fibers applied

Interior or hollow article coating

118308, 118317, 118320, 427180, 427184, 427195, 427233, 427421, 427425, B05D 112

Patent

active

051417715

ABSTRACT:
An apparatus for coating samples or small quantities of internally and externally threaded fasteners includes a powder feed, an induction heater, and dust collection system. A reciprocating, magnetized holder engages a friction drive to rotate a stud in front of a spray nozzle. In another embodiment, a nut sample machine includes a reciprocating powder spray nozzle mounted on an air cylinder and a water cooled support block for the nut. In a third embodiment a hydraulically controlled gate is sequenced with the reciprocating powder feed, providing a continuous coating operation.

REFERENCES:
patent: 3797455 (1974-03-01), Scheffer et al.
patent: 3894509 (1975-07-01), Duffy et al.
patent: 3896760 (1975-07-01), Duffy
patent: 4060868 (1977-12-01), Axvig et al.
patent: 4120993 (1978-10-01), Duffy et al.
patent: 4426410 (1984-01-01), Watson et al.
patent: 4528938 (1985-07-01), Neville
patent: 4835819 (1989-06-01), Duffy et al.

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