Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1983-06-09
1985-02-19
Caroff, Marc L.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15416, 15420, 15421, A47L 902
Patent
active
044996284
ABSTRACT:
A vacuum cleaner structure arranged to provide front edge cleaning fully to the intersection of a floor surface and an upright wall surface by a forward movement of the vacuum cleaner nozzle thereto. The vacuum cleaner structure includes a front wall of the nozzle having openings and associated structure for selectively closing the openings when the nozzle is spaced remotely from the upright wall surface and automatically causing the openings to be opened when the nozzle front wall is closely juxtaposed to the upright wall surface. The closure member, in the illustrated embodiment is pivotally mounted to the front wall and movement thereof is effected by an actuator sensor button slidably mounted in the front wall to overcome the gravity biasing and suction biasing of the closure member to the closed position, as an incident of the front wall of the nozzle being juxtaposed to the upright wall surface.
REFERENCES:
patent: 1348587 (1920-08-01), Rosenfield
patent: 1860854 (1932-05-01), Engberg et al.
patent: 2324111 (1943-07-01), Ross
patent: 2528278 (1950-10-01), Kendrick
patent: 2659925 (1953-11-01), Wood
patent: 3005224 (1961-10-01), Magarian
patent: 3089178 (1963-05-01), Sherman, Jr.
patent: 3550183 (1970-12-01), Wolf
patent: 3862469 (1975-01-01), Burgoon
patent: 3942219 (1976-03-01), Johnson
patent: 4254525 (1981-03-01), Combest
patent: 4416034 (1983-11-01), Ahlf et al.
Caroff Marc L.
Whirlpool Corporation
LandOfFree
Vacuum cleaning apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vacuum cleaning apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum cleaning apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-605707