Manhole cover support having interbraced top members

Details Manhole cover support having interbraced top members Manhole cover support having interbraced top members

1989-06-06

1990-10-30

Massie, IV, Jerome W.

Road structure, process, or apparatus

Pavement

Vault cover-closure

52 20, E02D 2914

Patent

active

049664891

ABSTRACT:
An improved manhole cover support having a metal body comprising base, seat, and keeper portions, the keeper portion rising above the seat portion and having at least a pair of opposing ends that define a gap between them, a bridging piece for spanning each gap, the bridging piece having at least one free end, a receiver for slidably retaining each free end of each bridging piece, the receiver attached to and protruding outwardly from the keeper portion near the top thereof, the bridging piece including 2 turnbuckle for exerting parting pressure against the receivers that retain it.

REFERENCES:
patent: 1908909 (1933-05-01), Manz
patent: 3773428 (1973-11-01), Bowman
patent: 4097228 (1978-06-01), Rosling
patent: 4302126 (1981-11-01), Fier
patent: 4582450 (1986-04-01), Neil
patent: 4834574 (1989-05-01), Bowman
patent: 4867601 (1989-09-01), Bowman
One page from Spec. No. 715-13, N.Y. State Dept. of Transportation, Albany, N.Y., entitles "715-13 Prefabricated Adjustment Rings and Frames for Drainage Units and Manholes"--published prior to 1983.

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