Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Including settable material
Patent
1983-08-11
1985-10-08
Smith, Gary L.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
Including settable material
411302, 411930, 10 10P, F16B 3902
Patent
active
045457123
ABSTRACT:
A threaded fastener having a deposit of a fluid polymerizable resin in the bottoms of the thread grooves, a fluid polymerizing agent overlying the resin in the thread grooves, and a strong non-tacky protective film covering the agent. The fluid resin and agent have therebetween a barrier film as a result of polymerization of the resin where it contacts the polymerizing agent. Preferably, the fluid resin and agent deposit includes abrasive particles, such as table salt to enhance mixing when the fastener engages a mating threaded member. In production, the protective film is applied as an aqueous solution of PVA, which is rapidly converted to the non-tacky film by the application of a desiccant powder such as a derivative of guar gum.
REFERENCES:
patent: 2939805 (1960-06-01), Johnson
patent: 3061455 (1962-10-01), Anthony
patent: 4059136 (1977-11-01), Wallace
patent: 4081012 (1978-03-01), Wallace
patent: 4428982 (1984-01-01), Wallace
Smith Gary L.
The Oakland Corporation
Wilson Neill
LandOfFree
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