Electric board cleaner

Details Electric board cleaner Electric board cleaner

1995-05-05

1996-07-23

Graham, Gary K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15347, 15398, 15410, A47L 524

Patent

active

055377114

ABSTRACT:
An electric board cleaner having a housing formed of two half housings, an absorbing head having a mouth for fixing a cleaning pad, a motor with a fan vertically located in a chamber in the housing, a dust net contained in a dust chamber in the housing, a film horizontally held at a lower end of the absorbing head and able to be tilted open by a sucking force of the fan. The cleaning pad is brought into contact with the surface of a blackboard to rub and wipe chalk powder off by turning on the motor. The dust net is removable for emptying the powder stored therein.

REFERENCES:
patent: 1801620 (1931-04-01), Bettman
patent: 1861261 (1932-05-01), Carson
patent: 2626418 (1953-01-01), Kelly et al.
patent: 2960713 (1960-11-01), Wistrand
patent: 3135986 (1964-06-01), Tolin
patent: 3316577 (1967-05-01), Kravos
patent: 3914820 (1975-10-01), Hankel
patent: 4542557 (1985-09-01), Levine
patent: 4709875 (1987-12-01), Pugh et al.
patent: 4956892 (1990-09-01), Fawkes
patent: 5379483 (1995-01-01), Pino

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