Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1998-08-28
2000-06-20
Snider, Theresa T.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
154151, 15416, A47L 524, A47L 902
Patent
active
060762314
ABSTRACT:
An output nozzle for allowing plural air flow passage channels in different directions from a gas/electric yard/lawn air blower. The blower uses nozzles having a primary airstream for blowing debris such as leaves, dirt and trash upward above an obstacle such as grass and curbs and a second airstream for propelling debris outward over the obstacle. One version uses a second smaller nozzle upwardly angled at a slight angle of approximately 45 degrees from the upper surface of the main exhaust nozzle. Another version uses a flapper shut off valve in the second nozzle for selectively opening and closing the second nozzle. A still another version uses an extension member having a swivel base for allowing the second airflow exhaust to be directed into different angled directions therefrom. A still another version has a slidable second nozzle having one position closing off airflow, and a second position where airflow passes out from the second nozzle. A still another version has the second nozzle positioned slightly above and behind the first nozzle. An a still another version has three nozzles the bottom having the largest opening, followed by the middle followed by the top with each opening positioned above and slightly behind the nozzle opening below.
REFERENCES:
patent: 4644606 (1987-02-01), Luerken et al.
patent: 5652995 (1997-08-01), Henke et al.
patent: 5722111 (1998-03-01), Sowell et al.
Snider Theresa T.
Steinberger Brian S.
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