Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1975-12-16
1977-10-18
Moore, Christopher K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
A47L 902
Patent
active
040539628
ABSTRACT:
A vacuum-cleaner nozzle attachment comprises an elongated tube having an oblong cross-sectional shape over an outer, working section thereof and a round cross-sectional shape over an inner section. At an outer working tip thereof an opening defines an angle of more than 20.degree. but not more than 60.degree. with an axis of elongation of the tube. An attaching portion at an opposite end of the elongated tube has a wall which forms tapered, stepped cavities which can be force fitted onto various size vacuum-cleaner nozzles. The two sections can be forced fitted together. In one embodiment, the angled opening does not extend over the entire cross-sectional area of the tube, but rather only over a portion thereof and the remaining portion has an opening formed therein which is perpendicular to the axis of elongation. In another embodiment, the remaining portion is covered rather than being open. In a further embodiment of the invention an elbow attachment can be force fitted to the outer working tip of the elongated tube. An attaching portion of the elbow has an oblong cross-sectional shape to mate with the oblong section of the tube, and a working portion thereof has a rectangular shape.
REFERENCES:
patent: 986245 (1911-03-01), Thurman
patent: 1752664 (1930-04-01), Forcier
patent: 2659924 (1953-11-01), Forsberg
patent: 2665446 (1954-01-01), Gregory
patent: 2679068 (1954-05-01), Wied
patent: 2913756 (1959-11-01), MacFarland
LandOfFree
Suction-cleaning dust retriever does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Suction-cleaning dust retriever, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Suction-cleaning dust retriever will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1441527