Method and apparatus for extracting dirt from ducting

Details Method and apparatus for extracting dirt from ducting Method and apparatus for extracting dirt from ducting

1985-07-02

1987-05-19

Metz, Andrew H.

Cleaning and liquid contact with solids

Processes

Hollow work, internal surface treatment

151043SN, 151041R, 1523016, 1523019, 15302, 15320, B08B 900

Patent

active

046665307

ABSTRACT:
A method and apparatus for removing accumulated dirt and dust from ductwork, in-situ. The apparatus includes an auger which is inserted into the ductwork and the power unit for driving the auger. An extraction unit is also connected to the ductwork to remove the dust and dirt which has been produced as a result of the auger.

REFERENCES:
patent: 2170740 (1939-08-01), Volclaning
patent: 2735122 (1956-02-01), Pletcher
patent: 3768109 (1973-10-01), Wardell
patent: 3853621 (1974-12-01), Sollerud
patent: 4011100 (1977-03-01), Ross
patent: 4028136 (1977-06-01), Kanip
patent: 4124065 (1978-11-01), Leitner et al.
patent: 4324017 (1982-04-01), Viehe
patent: 4377412 (1983-04-01), Viehe
patent: 4445248 (1984-05-01), Hart

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