Manhole ceiling tent

Details Manhole ceiling tent Manhole ceiling tent

1979-06-27

1981-02-03

Byers, Jr., Nile C.

Road structure, process, or apparatus

Pavement

Vault cover-closure

135 5R, 52 19, E02D 2914

Patent

active

042485460

ABSTRACT:
A manhole tent including a substantially planar sheet-like portion for placement in contiguous relationship to the ceiling of a manhole, an opening in the sheet-like portion, a chimney attached to the sheet-like portion and leading to the opening for permitting ingress and egress of personnel into a manhole, and grommets in the edges of the sheet-like portion for receiving ties for securing the manhole tent in position.

REFERENCES:
patent: 3009166 (1961-11-01), Sears
patent: 3048183 (1962-08-01), Grundseth
patent: 3489156 (1970-01-01), Otto
patent: 3581436 (1971-06-01), Basiger
patent: 3712009 (1973-01-01), Campagna
patent: 3865429 (1975-02-01), Barker

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