Road structure – process – or apparatus – Pavement – Vault cover-closure
Patent
1979-06-25
1981-06-16
Byers, Jr., Nile C.
Road structure, process, or apparatus
Pavement
Vault cover-closure
210163, 52 20, E02D 2914
Patent
active
042734673
ABSTRACT:
An adjustable manhole cover support. The support comprises an outer ring having a circular internal opening. Threaded members are disposed about the interior of the circular opening. An insert is dimensioned to fit within the outer ring to a depth controlled by the abutment of the insert against the threaded members. Studs engage and extend through the threaded members to abut the under surface of the insert to provide control of the depth of the insert into the outer ring and the angulation of the outer ring. The support is simple to make, easy to adjust and trouble-free in operation.
REFERENCES:
patent: 1076386 (1913-10-01), O'Day
patent: 2930295 (1960-03-01), Hale
patent: 3263579 (1966-08-01), Dorris
patent: 3392640 (1968-07-01), Zeile
patent: 3408778 (1968-11-01), Mason
patent: 3773428 (1973-11-01), Bowman
patent: 3858998 (1975-01-01), Larsson
patent: 3930739 (1976-01-01), Larsson
patent: 4015373 (1977-04-01), Boissier
patent: 4149816 (1979-04-01), Piso
Byers Jr. Nile C.
Cremo Supply Ltd.
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