Method and apparatus for adjusting the height and slope of a man

Details Method and apparatus for adjusting the height and slope of a man Method and apparatus for adjusting the height and slope of a man

1993-10-25

1995-09-19

Bagnell, David J.

Road structure, process, or apparatus

Pavement

Vault cover-closure

404 26, 52 20, E02D 2914

Patent

active

054511194

ABSTRACT:
A barrel-shaped manhole frame for receiving a manhole cover is provided with an inwardly directed peripheral flange at its lower end having circumferentially spaced inclined grooves to receive wedges that can be driven in situ into surrounding earthwork to wedge the frame upwardly and thereby adjust its height and slope to conform with a roadway or sidewalk surface under construction.

REFERENCES:
patent: 3561162 (1971-02-01), Goldman
patent: 4038789 (1977-08-01), Axgarde et al.
patent: 5318376 (1994-06-01), Prescott, Sr.

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