Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc.
Patent
1981-08-10
1983-11-22
Shedd, Wayne L.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Externally threaded fastener element, e.g., bolt, screw, etc.
411103, F16B 0000
Patent
active
044165730
ABSTRACT:
A bolt for attaching an earth engaging plow component to a plow frog has an improved head configuration represented by planar surfaces having inclined angular displacement similar to the slope of the truncated cone portion of the plow bolt head.
REFERENCES:
patent: 281564 (1883-07-01), Sanders
patent: 3556570 (1971-01-01), Cosenza
patent: 3821871 (1974-07-01), Schmitt
patent: 4326825 (1982-04-01), Volkmann et al.
Heinie Richard L.
Matalis John A.
Wegerer Duane E.
AuBuchon F. David
International Harvester Co.
Shedd Wayne L.
Sullivan Dennis K.
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