Apparatus and method for producing coated fastener samples
AssigneeNylok Fastener Corporation
InventorsAnthony DiMaio, Richard J. Duffy, Eugene D. Sessa
Life of this patent
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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. Methods for applying coating to the samples include steps that employ these embodiments.
Claims11
An apparatus for coating the threads of a fastener, comprising:
- means for heating the fastener;
- spray means for spraying powder on the threads of the fastener, including means for controlling the rate of powder spray;
- means for linearly moving the fastener between said heating means and said spray means, said moving means including means for rotatably supporting the fastener;
- and
- a motor adapted to rotatably engage said moving means to rotate the fastener.
An apparatus for coating the threads of a fastener, comprising:
- means for heating the fastener;
- fixed means for supporting the fastener;
- spray means for spraying powder on the threads of the fastener, including means for controlling the rate of power spray;
- and
- reciprocating movement means for reciprocatingly moving said spray means through said fixed supporting means and fastener.
Dependencies are inferred from the claim text.