Manhole cover locator and method of paving

Details Manhole cover locator and method of paving Manhole cover locator and method of paving

1991-05-13

1993-03-23

Britts, Ramon S.

Road structure, process, or apparatus

Process

404 26, 116218, 116217, G01K 1106, E02D 2914, E02B 1504

Patent

active

051958414

ABSTRACT:
The locator includes a main body having a cup formed therein by an upright wall in which an indicator is slidably disposed. A spring within said main body urges the indicator upwardly to the surface of newly laid molten asphalt. A heat fusible retainer is carried within the upright wall of the main body in the path of the locator to normally retain same in place against spring action. Heat from the asphalt causes fusing of the retainer for release of the indicator which is repositioned to the surface of the asphalt material to facilitate locating of a buried street cover. A method is disclosed for paving a roadway having utility covers in place in the roadway.

REFERENCES:
patent: 3362834 (1968-01-01), Kaye
patent: 3559615 (1971-02-01), Kliewer
patent: 3724360 (1973-04-01), Kliewer et al.
patent: 3759103 (1973-09-01), Volk
patent: 3872822 (1975-03-01), Ayrer
patent: 4289088 (1981-09-01), Scibelli
patent: 4356790 (1982-11-01), Gee
patent: 4421053 (1983-12-01), Volk
patent: 4748931 (1988-06-01), Volk
patent: 4818119 (1989-04-01), Busch et al.
patent: 4947786 (1990-08-01), Maynard et al.
patent: 4976568 (1990-12-01), Hess

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