Road structure – process – or apparatus – Traffic steering device or barrier
Patent
1984-09-27
1986-05-06
Novosad, Stephen J.
Road structure, process, or apparatus
Traffic steering device or barrier
404 72, 308 4R, 408241G, 408241S, E01F 1300
Patent
active
045868468
ABSTRACT:
A method for avoiding rebar, a fixture useful to that end, a particular fastener for use with the method and fixture, and objects to be fastened adapted for rebar avoidance. Where rebar is encountered drilling directly into a concrete surface, a fixture is moved into place over the hole. The fixture has an angled bit guide that guides the drill bit at an angle into the concrete, away from the rebar and to the appropriate depth. The fixture is removed, the object to be secured is replaced, the original and the inclined hole are filled with a hardening securing agent, and a special bent-shaft fastener is introduced into the inclined hole. The bend of the fastener is such that its upper end projects substantially perpendicular to the surface just as would have been the case had no rebar been encountered and a conventional fastener used. A road barrier or the like has several alternate routes for a fastener at its connection location. The routes may be separate holes or an inclined path through a conical hole. When rebar is encounter a second route is used to drill a new hole and enter the fastener through the object.
REFERENCES:
patent: 2964115 (1960-12-01), Clatfelter
patent: 3377807 (1968-04-01), Nave
Drawing from Kelken-Gold, Inc. Literature-May 22, 1983.
"Typical Barrier Details," Kelken-Gold, Inc., advertising literature, undated.
Kelistud Highway Anchor, advertising flyer by Kelken-Gold, Inc., undated.
Letchford John F.
Novosad Stephen J.
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