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
1991-12-19
1993-04-06
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...
411186, 411427, 411910, F16B 3700, F16B 3928
Patent
active
051998386
ABSTRACT:
A nut for use on roadways, runways, in reinforced concrete construction, and the like, possesses a generally circular shape, with spherical top and bottom surfaces connected by a cylindrical side wall. A central aperture formed through the nut is threaded for engagement with an anchor bolt secured in a roadway surface by a conventional epoxy. Four smaller diameter threaded apertures are disposed on a common circle adjacent a peripheral edge of the nut, evenly spaced at ninety degree angular increments. The smaller diameter apertures are utilized in conjunction with a spanner wrench to tighten the nut on an anchor bolt. After the nut is tightened securely into position, an externally threaded drill guide bushing is engaged within each of the four smaller diameter apertures and utilized to drill a coaxial cylindrical bore in the roadway surface. After the drill guide bushings are removed, stepped diameter securing screws are tightened into each of the four smaller diameter apertures to prevent the nut from backing off installation. The spherical top and bottom surfaces of the nut allow sufficient flexure to accommodate shock and expansion and contraction induced by temperature variations. The nut is designed for roadway applications such as the installation of expansion joints; the spherical upper surface of the nut reduces damage and shock to vehicle tires and vehicle occupants.
REFERENCES:
patent: 149362 (1874-04-01), Watrous
patent: 367196 (1887-07-01), Deblieux
patent: 386739 (1888-07-01), Connelly
patent: 576036 (1897-01-01), Cour
patent: 800189 (1905-09-01), Ward
patent: 1231840 (1917-07-01), Bolt
patent: 1865346 (1932-06-01), Wells
patent: 1882462 (1932-10-01), Weber
patent: 1937109 (1933-11-01), Colt
patent: 2284824 (1942-06-01), Hungerford
patent: 2556672 (1951-06-01), Bergh et al.
patent: 2591631 (1952-04-01), Stanitski
patent: 2917331 (1959-12-01), Baer et al.
patent: 3796123 (1974-03-01), Duffy et al.
patent: 3821975 (1974-07-01), Haker
patent: 4253509 (1981-03-01), Collet
patent: 4269248 (1981-05-01), Madean et al.
patent: 4302137 (1981-11-01), Hart
Luke David E.
MacAllaster Richard
Kearns Jerry T.
Wilson Neill R.
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