Method for coating internal threads of a fastener

Details Method for coating internal threads of a fastener Method for coating internal threads of a fastener

1982-11-03

1984-01-17

Hoffman, James R.

Coating processes

Interior of hollow article coating

Rotating the article

427231, 427234, B05D 126, B05D 722

Patent

active

044264100

ABSTRACT:
A method for coating the internal threads of a fastener includes a rotatable base for holding the fastener, and an applicator having a discharge orifice extending through its side wall which contacts the internal threads at a single point of tangency, the axis of the applicator being offset from the rotational axis of the base. Thus, an induced side load force is created at the point of tangency for effecting the pressing of discharged sealant into the roots of the threads. Differently sized internally threaded elements can be coated in accordance with the invention while using the same sealant applicator.

REFERENCES:
patent: 3416492 (1968-12-01), Greenleaf
patent: 3956533 (1976-05-01), Weber et al.

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