Road structure – process – or apparatus – Pavement – Vault cover-closure
Patent
1993-04-28
1994-06-28
Britts, Ramon S.
Road structure, process, or apparatus
Pavement
Vault cover-closure
292143, 292149, 210164, E02D 2914
Patent
active
053241355
ABSTRACT:
A lockable cover for a ground opening such as a manhole or catch basin. The cover has a lock including a reciprocating locking bolt mounted to its underside for engagement of a lip of a surrounding support. The bolt is accessible directly from above the cover through an aperture in the cover. In one disclosed embodiment, a cover is secured to its support by a pin which extends from the cover to under a lip of the support and a lock. In another embodiment, a catch basin cover is secured to its support through a hinge connection and a lock. In another embodiment, a manhole cover is secured to its support through a pair of locks.
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Britts Ramon S.
Hunt John C.
Lisehora James A.
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