Method for coating fasteners

Details Method for coating fasteners Method for coating fasteners

1987-07-07

1989-06-27

Pianalto, Bernard P.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427195, 427196, 427318, 427322, 427425, B05D 314

Patent

active

048428906

ABSTRACT:
A method and apparatus for coating a fastener, particularly a fastener with a head portion and shank portion, with a coating material is provided. The invention includes the steps of and apparatus for supporting the fasteners such that the fasteners are positioned for coating. The fasteners are conveyed such that the fasteners are moved through a plurality of operation stations and pass through a heating station where the shank portions of the fasteners are heated. Subsequently, at a material applying station, a coating material is applied to the heated shank portions. A preferred embodiment of the method and apparatus of the present invention includes supporting the fasteners on their head portions with the shank portions projecting upward, conveying the fasteners with their shank portions projecting upward for processing, heating the shank portion to a temperature above the melting point of the applied material and applying the material to the heated shank portion to form a coating thereon.

REFERENCES:
patent: 4120993 (1978-10-01), Duffy et al.

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