Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Headed bolt or screw with threads and complementary nut
Patent
1990-11-30
1992-08-25
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Headed bolt or screw with threads and complementary nut
411258, 411542, 411915, F16B 3300
Patent
active
051413752
ABSTRACT:
An improved threaded fastener with an integral sealing element bonded directly to the bearing shoulder and/or upper shank is provided. The sealant is a soft pliable olefin based material designed to flow between the bearing shoulder and threads of the fastener, and the abutting bearing surface of a receptacle as the fastener is tightened into the receptacle thereby creating a tight seal. The fastener with an integral sealing element is reusable and does not require additional curing or heating after installation.
REFERENCES:
patent: 2760400 (1956-08-01), Mills et al.
patent: 3247752 (1966-04-01), Greenleaf et al.
patent: 3355205 (1967-11-01), Wagner et al.
patent: 4657460 (1987-04-01), Bien
patent: 5018329 (1991-05-01), Hasan et al.
Nylok Fastener Corporation
Wilson Neill R.
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