Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Headed bolt or screw with threads and complementary nut
Patent
1989-07-10
1990-06-12
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Headed bolt or screw with threads and complementary nut
411397, 411429, 52704, F16B 3500, F16B 3714
Patent
active
049328182
ABSTRACT:
A positioning system for accurately setting anchor bolts in concrete construction work. The anchor bolt is assembled in a formwork template with a threaded flange on the inner side of the template and a closed end sleeve having a flange covering the projecting outer, threaded end of the anchor bolt to firmly position the anchor bolt perpendicular to the concrete surface during pouring and setting of the concrete.
REFERENCES:
patent: 2873765 (1959-02-01), Gregory
patent: 2930409 (1960-03-01), Higgins
patent: 3500607 (1970-03-01), Wilson
patent: 3896599 (1975-07-01), Werstein et al.
patent: 4077300 (1978-03-01), Yoda
patent: 4082030 (1978-04-01), Erickson
patent: 4139023 (1979-02-01), Turley
patent: 4501301 (1985-02-01), Snow, Sr. et al.
patent: 4553567 (1985-11-01), Telander
Barnett H. John
Wilson Neill R.
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