Method and apparatus for applying a sealant to exposed fasteners

Details Method and apparatus for applying a sealant to exposed fasteners Method and apparatus for applying a sealant to exposed fasteners

1983-08-12

1985-05-28

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

249117, 249134, 264334, 425436R, B29C 100

Patent

active

045199744

ABSTRACT:
A method and apparatus for applying a uniform sealant coating over the portion of a fastener (14) exposed above a panel (10, 12) includes depositing an amount of uncured sealant (S) in a cavity (44) in a sealant retaining shell (40). The shell and sealant is applied over the exposed portion (22) of the fastener (14) and the retaining shell is brought into contact with the panel such that the uncured sealant is entrapped between the shell and the exposed portion of the fastener and the panel. As descent is made onto the fastener, a slight rotating motion may be used to adjust the sealant around the fastener equally. The sealant is allowed to cure and thereafter the shell is removed leaving a uniform sealant coating over the fastener exposed end.

REFERENCES:
patent: 1556029 (1925-10-01), Reagan
patent: 2010934 (1935-08-01), Smith
patent: 2135326 (1938-11-01), Calland
patent: 2208732 (1940-07-01), Powell
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patent: 3217617 (1965-11-01), Wiswell
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patent: 3470787 (1969-10-01), Mackie
patent: 3885492 (1975-05-01), Gutshall
patent: 3957560 (1976-05-01), Le Bon
patent: 4135476 (1979-01-01), Duryea
patent: 4144625 (1979-03-01), Hogenhout
patent: 4382049 (1983-05-01), Hofmeister et al.

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