Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Internally threaded fastener element – e.g. – nut – etc. – Having cap
Patent
1990-08-09
1991-02-19
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Internally threaded fastener element, e.g., nut, etc.
Having cap
411372, 411377, 411303, 10 86C, F16B 3714
Patent
active
049939025
ABSTRACT:
A plastic capped lock nut includes a metal body having a threaded bore extending axially between transverse opposite end faces and includes an annular wall extending outwardly of one of the end faces to define an open ended cavity for receiving a resilient lock ring mounted in the cavity in coaxial alignment with the threaded bore. An end cap of plastic material including an annular side wall and an outer end engages the lock ring and is sonically welded thereto. The annular wall of the metal body is deflected inwardly tightly against the lock ring to secure the ring in the cavity against rotation relative to the body. The end cap provides protection for exposed threads of a threaded rod or other element extending outwardly of the bore of the lock nut body and ring.
REFERENCES:
patent: 4824305 (1989-04-01), McCauley
patent: 4887950 (1989-12-01), Sakayori et al.
patent: 4900206 (1990-02-01), Kazino et al.
MacLean-Fogg Company
Wilson Neill R.
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