Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1984-11-23
1986-04-08
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15340, 15346, 15418, 15420, A47L 902
Patent
active
045803145
ABSTRACT:
A suction cleaning device adapted to be moved over a surface to remove loose debris therefrom and for use in a system including a suction duct leading to a source of high velocity air vacuum. A frame defines a housing having a substantially closed top. A plurality of elongated rollers are journalled on the frame within the housing and extending generally perpendicular to a forward direction of travel of the device for sealing as the device moves over the surface. Upper seals extend lengthwise between adjacent rollers and spaced from the surface. Surface seals extend between adjacent ends of selected pairs of the elongated rollers, whereby the rollers, the upper seals, the surface seals and the surface itself substantially define the bounds of a tortuous air flow path generally parallel to and over the surface in a circuitous route between the rollers. An air inlet is located forwardly of the housing at one end of the tortuous air flow path. An air outlet is located rearwardly of the inlet, with the tortuous air flow path following the circuitous route around the outlet and between the rollers.
REFERENCES:
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patent: 4359801 (1982-11-01), Tate
patent: 4466156 (1984-08-01), Blehert
Galanis Michael J.
Moore Chris K.
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