Device for automatically cleaning manhole rims

Details Device for automatically cleaning manhole rims Device for automatically cleaning manhole rims

1982-09-07

1984-12-04

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Attachments

Tank cleaners

15 21R, 15 49R, 15345, A46B 1302

Patent

active

044855176

ABSTRACT:
A device for cleaning the rim of a circularly curved manhole, e.g. on a container for the storage of radioactive materials, comprises a housing temporarily held under pressure against a container wall provided with manhole to be served. A support inside the housing is rotatable about the manhole axis and has a rotary brush eccentrically mounted thereon with its bristles contacting the manhole rim. The brush mounting may be radially and/or axially adjustable for proper positioning, e.g. to clean a stepped peripheral shoulder of the rim. The support and the brush shaft are respectively driven by fluid-operated motors, and detached solid particles may be carried off by an air flow or confined to the interior of the housing.

REFERENCES:
patent: 459486 (1891-09-01), Dunne
patent: 2668968 (1954-02-01), Dobrowolski
patent: 3922748 (1975-12-01), Ritz
patent: 4182001 (1980-01-01), Krause

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