Road structure – process – or apparatus – Pavement – Vault cover-closure
Patent
1988-06-01
1989-09-19
Massie, IV, Jerome W.
Road structure, process, or apparatus
Pavement
Vault cover-closure
52 20, E02D 2914
Patent
active
048676004
ABSTRACT:
This cover support provides a seat and lateral keeper for a manhole cover. A principal feature is a plurality of straight lateral segments that are joined near their ends and have corner spreaders acting in an essentially horizontal direction that is biased with respect to the longitudinal axes of the lateral segments whose ends they spread or draw in.
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Massie IV Jerome W.
Smith Matthew
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