Sealant spray applicator system and method employing same

Details Sealant spray applicator system and method employing same Sealant spray applicator system and method employing same

1987-09-16

1988-11-22

Griffin, Donald A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

29458, 118711, E21B 3300, B05C 902, B23P 2500

Patent

active

047860600

ABSTRACT:
Method and system for applying liquid sealant in holes of a structural member prior to installing fasteners in such holes, which comprises mixing air with a liquid sealant, spraying a controlled amount of the resulting air-sealant mixture into the holes and depositing liquid sealant therein, and impinging an elevated pressure air stream on the deposited liquid sealant to spread the sealant out and produce a thin layer of sealant in the holes. A system for carrying out the method comprises a spray gun having separate air and liquid sealant paths which meet at the spray nozzle of the spray gun to achieve the mixing of air with the liquid sealant. The liquid spray system also includes a sealant applicator controller which is arranged to activate a series of timers and valves to provide controlled flow of high pressure air and liquid sealant to the nozzle for mixture therein, and spraying to form the sealant deposit, and to provide for continued high pressure flow of air on the layer of sealant deposit to spread the sealant and produce a thin sealant layer.

REFERENCES:
patent: 3350774 (1967-11-01), Bridges
patent: 4144625 (1979-03-01), Hogenhout
patent: 4359965 (1982-11-01), Bridges
patent: 4429658 (1984-02-01), Jones
patent: 4635827 (1987-01-01), Roedig

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