Portable blower-vacuum unit

Details Portable blower-vacuum unit Portable blower-vacuum unit

1980-04-07

1982-04-20

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15337, 15339, 15405, 241 56, 415121G, B02C 1806

Patent

active

043251633

ABSTRACT:
A portable blower-vacuum unit has an impeller for drawing air axially through a housing air inlet, and for discharging the air centrifugally through a tangential housing air outlet. In a blower mode, a perforate cover plate prevents ingestion of solid material by the impeller. In a vacuum mode, a vacuum conduit connects to the housing in lieu of the cover plate, and a vacuum bag attaches to the air outlet. A mulching blade rotates with the impeller to chop any solid material passing through the housing when the unit is operated in the vacuum mode.

REFERENCES:
patent: 1086591 (1914-02-01), Fulton
patent: 1583528 (1926-05-01), Clements
patent: 1749373 (1930-03-01), Breuer
patent: 2598499 (1952-05-01), Breuer et al.
patent: 3618157 (1971-11-01), Bassin
patent: 3712353 (1973-01-01), Ferry
patent: 3968938 (1976-07-01), Ruhl et al.

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