Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Internally threaded fastener element – e.g. – nut – etc. – Including lubricating means
Patent
1999-04-30
2000-12-26
Wilson, Neill
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Internally threaded fastener element, e.g., nut, etc.
Including lubricating means
411429, 411435, F16B 3700, F16B 3714
Patent
active
061648884
ABSTRACT:
A lubricated wing nut device for attaching a cover plate to a container such as on a gravity tee of the type used for closing a discharge hopper of a tank transport vehicle. The lubricated wing nut inhibits corrosion and seizing of the bolt used in securing the cover plate to the container opening. It comprises a cast metal body having a longitudinal bore of a predetermined diameter inwardly from a base end thereof. Fitted into the bore is a stainless steel nut having an internally threaded surface for engaging the threads on a bolt. The longitudinal bore is adapted to be filled with a lubricating grease.
REFERENCES:
patent: 1852319 (1932-04-01), Leighton
patent: 2064377 (1936-12-01), Gordon
patent: 2663213 (1953-12-01), Davidson et al.
patent: 4842004 (1989-06-01), Steinman
patent: 5028093 (1991-07-01), Nason
patent: 5273384 (1993-12-01), Dunbar
patent: 5553984 (1996-09-01), Smith
patent: 5611653 (1997-03-01), Smith, II et al.
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