Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Internally threaded fastener element – e.g. – nut – etc. – Multipart
Patent
1996-02-16
1997-04-08
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Internally threaded fastener element, e.g., nut, etc.
Multipart
411368, 411533, 411544, F16B 3300, F16B 3708
Patent
active
056181450
ABSTRACT:
A fastener module includes a washer having an upper portion with a first passage defined therein and a lower portion with a second passage defined therein and communicating with the first passage. A head is mounted on the upper portion of the washer and has a shank extending downwardly from a lower portion thereof and mounted in the first passage. An annular groove is defined around a periphery of the shank and communicates with the second passage. A snapping ring is mounted in the annular groove and received in the second passage and is abutted against the upper portion of the washer.
REFERENCES:
patent: 3221794 (1965-12-01), Acres
patent: 3520222 (1970-07-01), Placek
patent: 5059075 (1991-10-01), Kelly
Friedman Stuart J.
Wilson Neill R.
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