Road structure – process – or apparatus – Process – Providing expansion joint
Patent
1984-06-14
1985-01-15
Novosad, Stephen J.
Road structure, process, or apparatus
Process
Providing expansion joint
404 88, 404100, 152565, E01C 2304
Patent
active
044935846
ABSTRACT:
A dowel insertion apparatus and process is disclosed for the insertion of a plurality of joining dowels in freshly placed concrete slabs. Each dowel is grasped each by an individual inserter. Typically the inserter is mounted from a carrier and includes paired tangs having female dowel receiving ends of arcuate configuration at the lower portion thereof which female arcuate ends precisely mate to and receive the dowels. These tangs are connected at a depth above maximum concrete penetration by an electromagnet. A vibrator is attached to the inserter to liquefy the concrete. A dowel storage bin with distributing conveyor enables a row of inserters mounted to a carrier to distribute a plurality of dowels between two intended joints simultaneously, the dowels being evenly distributed the width of any contraction joint.
REFERENCES:
patent: 2224194 (1940-12-01), Mitchell
patent: 2295947 (1942-09-01), Heltzel
patent: 2389773 (1945-11-01), Golden
patent: 2596206 (1952-05-01), Carnes
patent: 3068766 (1962-12-01), Houck
patent: 3098413 (1963-07-01), Buntert et al.
patent: 3334559 (1967-08-01), Taylor
patent: 3443495 (1969-05-01), Heltzel
patent: 3841777 (1974-10-01), Domenighetti
patent: 3853444 (1974-12-01), Jones
Guntert & Zimmerman Const. Div. Inc.
Hjorth Beverly E.
Novosad Stephen J.
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