Suction nozzle with ducting

Details Suction nozzle with ducting Suction nozzle with ducting

1994-06-27

1996-05-07

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

154151, A47L 530

Patent

active

055134181

ABSTRACT:
A vacuum cleaner suction nozzle having a rotating agitator is provided with at least a rearward suction duct extending transversely along the nozzle and having a bottom side serving as the rear lip of the nozzle. A forward suction duct may also be included in a similar configuration and have a bottom side formed by a front lip of the nozzle. The rear and/or forward suction ducts may also include a constant velocity attribute by increasing in size from their entrant ends to their discharge ends.

REFERENCES:
patent: Re15423 (1922-07-01), Orr
patent: 573554 (1896-12-01), Stump
patent: 1260547 (1918-03-01), Kern, Jr.
patent: 1268963 (1918-06-01), Gray
patent: 1355553 (1920-12-01), Goughnour
patent: 1476004 (1923-12-01), Orr
patent: 1782882 (1930-11-01), Rippey
patent: 1849218 (1932-03-01), Beach
patent: 2017893 (1935-10-01), Boettler
patent: 2205249 (1940-06-01), Fitzgerald et al.
patent: 3460188 (1969-08-01), Boyd
patent: 4178653 (1978-01-01), Tschudy
patent: 4426751 (1984-01-01), Nordeen
patent: 4817233 (1989-04-01), Waldhauser
patent: 5018240 (1991-05-01), Holman
patent: 5077862 (1992-01-01), Rench

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