Vacuum cleaner

Details Vacuum cleaner Vacuum cleaner

1985-11-14

1987-03-10

Schroeder, Werner H.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15391, 15390, A47L 510

Patent

active

046481508

ABSTRACT:
A vacuum cleaner comprising a dust intake portion, a rotary brush provided in the intake portion, a drive motor for driving the rotary brush, a fan motor for suction of dust, a dust collector for the dust taken in, a dust transfer passage extending from the intake portion to the dust collector, a rotary brush pulley, a drive motor pulley, a belt coupling the above mentioned two pulleys for transmitting the power of the drive motor, at least one of the pulleys being frustoconical, and drive motor stopping means disposed at one side of the belt toward which said one pulley is diametrically smaller and pushable by the belt when the belt is displaced, which can provide to surely protect the belt and the drive motor for driving the rotary brush even if the rotary brush becomes stalled.

REFERENCES:
patent: 3757382 (1973-09-01), Brooks
patent: 4245370 (1981-01-01), Baker
patent: 4317253 (1982-05-01), Gut
patent: 4328522 (1982-05-01), Tryan
patent: 4370690 (1983-01-01), Baker
patent: 4446595 (1984-05-01), Nakada et al.

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