Sealant applicator for rivets

Details Sealant applicator for rivets Sealant applicator for rivets

1981-08-10

1984-02-07

Lawrence, Evan K.

Coating apparatus

Condition responsive control

Valve actuator

118408, 118699, 118704, B05C 700

Patent

active

044296584

ABSTRACT:
A sealant applicator for applying a thin film donut like ring of sealant in and around the top of a rivet hole prior to the installation of a rivet and immediately after the rivet hole has been drilled. The applicator is characterized by having an air operated probe assembly which is held in a retracted position with the center line of the probe displaced from the center line of the rivet hole while the hole is being drilled. Upon the completion of the drilled hole the probe assembly is immediately moved into alignment with the center line of the hole and lowered onto the work piece and a premeasured amount of sealant is uniformly applied to the top of the hole prior to the assembly being retracted and the rivet installed.

REFERENCES:
patent: 2426969 (1947-09-01), Hallowell, Jr.
patent: 2530199 (1950-11-01), Henson
patent: 2798455 (1957-07-01), Beck
patent: 3614940 (1971-10-01), Abrams et al.
patent: 4301698 (1981-11-01), Chaumet

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