Road surface recessing device

Details Road surface recessing device Road surface recessing device

1976-08-05

1978-03-14

Simpson, Othell M.

Boring or penetrating the earth

Bit or bit element

Core forming type

125 20, 175386, 299 55, 408 59, 408118, 408224, E21B 916, B23B 5108

Patent

active

040786226

ABSTRACT:
A device is provided for creating recesses for road surface markers in road surfaces which makes initially a cut sufficient to stabilize the device in the desired position and then fragments and discharges core material within a circular cut defining the recess. Such fragmentation is effected by rotation of a plurality of radially disposed cutting edges each spanning only a portion of the radius of the material to be fragmented.

REFERENCES:
patent: 1612338 (1926-12-01), Wilson et al.
patent: 2854219 (1958-09-01), MacNeil
patent: 2864600 (1958-12-01), Kirkpatrick
patent: 3360025 (1967-12-01), Gallo, Sr.
patent: 3540323 (1970-11-01), Rishel
patent: 3609056 (1971-09-01), Hougen

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