Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Member or portion thereof located between substructure and...
Patent
1990-10-29
1992-04-07
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Member or portion thereof located between substructure and...
411154, 411533, 411545, 52410, F16B 3504, F16B 3704
Patent
active
051022753
ABSTRACT:
A planar stress plate-buttress thread fastener assembly in which the stress plate's annulus has teeth formed on the perimeter thereof and pointed in the direction of the installation rotation of the fastener. The teeth are deflected downward out of the plane of the plate such that when the fastener is counterrotated the teeth will penetrate the fastener and prevent backout.
REFERENCES:
patent: 2257959 (1941-10-01), Hoppenstand
patent: 3434520 (1969-03-01), Bedford, Jr.
patent: 4034788 (1977-07-01), Melone
patent: 4763456 (1988-08-01), Giannuzzi
patent: 4892429 (1990-01-01), Giannuzzi
Construction Fasteners, Inc.
Quittner Leonard M.
Wilson Neill R.
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