Machine and method for grooving pavement

Details Machine and method for grooving pavement Machine and method for grooving pavement

1982-04-05

1984-06-26

Purser, Ernest R.

Mining or in situ disintegration of hard material

Processes

125 14, 51327, 299 39, 299 89, E01C 2309

Patent

active

044563035

ABSTRACT:
A method and apparatus are disclosed for grinding out a crack in pavement in preparation for filling the crack. A narrow groove is formed in the pavement following the crack by a single grooving blade having a first thickness. The single grooving blade is replaced with a second grooving blade assembly having a thickness greater than the single grooving blade, and the second grooving blade assembly is moved along the groove and with the second grooving blade assembly engaging opposite edges of the groove and for forming upwardly outwardly sloping sidewalls.

REFERENCES:
patent: 805685 (1905-11-01), Swanson
patent: 828734 (1906-08-01), Gammie
patent: 1411864 (1922-04-01), Mitrovich
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patent: 3001778 (1961-09-01), Tomita
patent: 3020812 (1962-02-01), Gross
patent: 3156231 (1964-11-01), Harding
patent: 3747981 (1973-07-01), Zuzezo
patent: 4062594 (1977-12-01), Haspert

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