Carpet cleaning machine

Details Carpet cleaning machine Carpet cleaning machine

1979-09-21

1981-05-26

Moore, Christopher K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15387, A47L 11202

Patent

active

042689350

ABSTRACT:
A carpet cleaning machine for uniformly spreading a powder onto a surface, working the powder into the surface and subsequently removing the powder and dirt is disclosed. The cleaning machine includes a powder dispenser attachable to a vacuum cleaner. The dispenser includes a hopper, a metering drum rotatably mounted within the hopper about a mandrel and a punch roller rotatably mounted within the metering drum. An air motor is operably connected to the metering drum. The vacuum cleaner includes an agitating brush, a suction nozzle, a suction passage and a source of vacuum connected to the suction passage. A blocking vane mounted within the housing and the suction passage alternately connects the suction nozzle to the source of vacuum or the air motor to the source of vacuum. A throttle valve carried in an air outlet tube of the air motor includes a lever which automatically interconnects with a control permanently mounted on the vacuum cleaner.

REFERENCES:
patent: 2510658 (1950-06-01), Rassmann
patent: 2529445 (1950-11-01), Betz
patent: 2963270 (1960-12-01), Magarian
patent: 3066622 (1962-12-01), Schurmann
patent: 3182863 (1965-05-01), Brandt et al.
patent: 4137601 (1979-02-01), Eschenbach

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