Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Thread or shank structure
Patent
1983-09-23
1988-07-12
Wilson, Neill
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Externally threaded fastener element, e.g., bolt, screw, etc.
Thread or shank structure
411426, 411908, 411386, 411398, F16B 3504
Patent
active
047566531
ABSTRACT:
A fastening element for packing sheets comprises a body having a lateral surface; a thread provided on the lateral surface; a head plate situated at an end of the body and having a diameter larger than a largest diameter of the thread; and a recess extending in the head plate and terminating in the body. The recess is situated centrally with respect to the head plate and has a part configured for receiving a tool for turning the fastening element.
REFERENCES:
patent: 591798 (1897-10-01), Strauss
patent: 635297 (1899-10-01), Caldwell
patent: 984969 (1911-02-01), Reiniger
patent: 1015890 (1912-01-01), Hyde
patent: 1114135 (1914-10-01), Hafertep
patent: 1260154 (1918-03-01), Day
patent: 1336773 (1920-04-01), Caldwell
patent: 1436743 (1922-11-01), Wild
patent: 2308914 (1943-01-01), Gerhold
patent: 2437381 (1948-03-01), Cullen
patent: 4403895 (1983-09-01), Caldwell et al.
Rehau Ag & Co.
Wilson Neill
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