Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Metallic resilient securing means
Patent
1980-08-29
1983-08-02
Holko, Thomas J.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Metallic resilient securing means
411211, 411479, 411520, F16B 2118
Patent
active
043963285
ABSTRACT:
A coupling pin for agricultural implement hitches and other mechanical couplings includes an elongated generally cylindrical body portion and a ring-like retainer portion integrally formed with the body portion. The coupling pin is formed from spring steel plate or the like by a shearing or blanking operation and successive bending operations to form the pin body from opposed overlapping or abutting blade portions. The ring-like retainer portion which is concomitantly formed with the pin body has opposed sides drawn to shorten the retainer to provide engagement of a recessed portion formed on the retainer with the distal end of the pin body.
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