Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Cap over the head
Patent
1988-01-19
1989-05-02
Smith, Gary L.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Cap over the head
411 82, 411258, 411429, 411910, 156229, 156294, 156295, 264268, 2642711, 29458, F16B 3714
Patent
active
048263800
ABSTRACT:
A pre-cast dome-like shell is loaded with a predetermined amount of curable sealant. The sealant and dome are similar in composition. The dome is pressed over the exposed end of a fastener. An elastic portion of the shell can expand, thereby increasing the internal volume of the shell to accommodate small variations in sealant amount. A close fit between the shell and fastener, combined with an adequate shell wall, insure proper shell orientation and barrier thickness.
REFERENCES:
patent: 2710113 (1955-06-01), Pritchard
patent: 3470787 (1969-10-01), Mackie
patent: 3992339 (1976-11-01), Harlan, Jr. et al.
patent: 4092296 (1978-05-01), Skiff
patent: 4382049 (1983-05-01), Hofmeister et al.
patent: 4400123 (1983-08-01), Dunegan
patent: 4519974 (1985-05-01), Bravenec et al.
Cate J. M.
LTV Aerospace & Defense Company
Ringel Douglas E.
Sadacca S. S.
Smith Gary L.
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