Adjusting device for installing a manhole ring onto a manhole

Details Adjusting device for installing a manhole ring onto a manhole Adjusting device for installing a manhole ring onto a manhole

2005-03-22

2005-03-22

Will, Thomas B. (Department: 3671)

Road structure, process, or apparatus

Pavement

Vault cover-closure

C052S020000

Reexamination Certificate

active

06869249

ABSTRACT:
An adjusting device for installing a manhole ring onto a manhole is provided. The manhole has an annular inner shoulder. The adjusting device comprises a center plate and at least one supporting arm. Each supporting arm has a first end and a second end with the first end of the supporting arm being securable to the center plate. A securement assembly associated with the center plate releasably holds the manhole ring.

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patent: 6161985 (2000-12-01), Hinkle et al.
patent: WO 02064894 (2002-08-01), None

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