Apparatus for installing circular traffic loops

Details Apparatus for installing circular traffic loops Apparatus for installing circular traffic loops

1986-08-12

1988-02-09

Novosad, Stephen J.

Road structure, process, or apparatus

Apparatus

With in situ means for both comminuting and treating, e.g.,...

404 86, 299 41, 173 28, 175330, E01C 2312

Patent

active

047238682

ABSTRACT:
Apparatus for cutting a circular trough in a roadway whereby a traffic detection loop can be embedded with an advantageous round configuration. A frame for rotatably mounting a circular drill bit is pivotally engaged to a movable platform such as a single axle chassis. Hydraulic rams and hand-operated jacks engaged to the frame are provided for precise levelling and positioning of the circular drill bit. A hydraulically actuated motor drives the bit while a hydraulic ram adjusts downward cutting pressure. The unit is easily transported from location to location and the advantageous round shape is reliably and repeatedly achieved with great efficiency and speed.

REFERENCES:
patent: 3107460 (1963-10-01), Staehlin
patent: 4068396 (1978-01-01), Langguth
patent: 4239415 (1980-12-01), Blikken
patent: 4273384 (1981-06-01), Freeburn
patent: 4274769 (1981-06-01), Multakh
patent: 4433871 (1984-02-01), Bertrand
patent: 4458949 (1984-07-01), Jury

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