04457043 is referenced by 49 patents and cites 4 patents.

The problem in picking up and collecting very fine dusts such as aluminum dust, cement and the like is to exhaust the transport air into the atmosphere without dusts. A sweeping machine which offers the solution to said problem comprises the following cooperating parts: a main mouthpiece (9) with at least one nozzle (10) blowing from the outside against the center of the mouth and a suction pipe (12) located inside; a secondary nozzle (15) with a suction conduit (17) movable with respect to the main mouthpiece (9); a common conduit (19) into which the two suction conduits (12, 17) open; a coarse separator (23) arranged in front of a cyclone multiple separator (24, 25, 26); a conduit (34, 35) supplying air from the cyclone on the suction side of a fan (3); a separation piece (4) on the exhaust side of the fan for dividing exhausted air and for supplying a portion of said air to the nozzle (10) blowing into the main mouthpiece (9) and the other portion to a separator (38); and an evacuation fan (45) arranged at the outlet of the separator (38).

Title
Sweeper particularly for collecting dust-like material, and the utilization thereof
Application Number
6/285185
Publication Number
4457043
Application Date
July 13, 1981
Publication Date
July 3, 1984
Inventor
Alex Meyerhans
Uitikon
CH
Lennart Oeberg
Oxie
SE
Agent
Lawrence Rosen
Assignee
Aktiengesellschaft Rolba
CH
IPC
A47L 5/14
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