Recirculating type cleaner

Brushing – scrubbing – and general cleaning – Machines – With air blast or suction

Patent

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Details

15346, A47L 514, A47L 928

Patent

active

056132697

ABSTRACT:
In a recirculating type cleaner, a jet nozzle is provided within a dust collecting head formed in the bottom face of the housing, the after-flow air from the suction fan is supplied through a recirculating tube to the jet nozzle. In the after-flow of the fan is provided a branch valve which is controlled by a controller to set the air recircuration ratio at a desired value suitable for any cleaning mode.

REFERENCES:
patent: 1383455 (1921-07-01), Farnsworth
patent: 2064344 (1936-12-01), Good
patent: 2226630 (1940-12-01), McCord
patent: 2238541 (1941-04-01), Spagnolo
patent: 2592710 (1952-04-01), Kirby
patent: 3075227 (1963-01-01), Bowles
patent: 3268942 (1966-08-01), Rossnan
patent: 3694848 (1972-10-01), Alcala
patent: 4207650 (1980-06-01), Crise

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