Dust indication system for vacuum cleaner

Details Dust indication system for vacuum cleaner Dust indication system for vacuum cleaner

1996-11-27

1998-10-06

Biefeld, Diana

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15319, A47L 500

Patent

active

058158847

ABSTRACT:
A vacuum cleaner includes an optical dust sensor for detecting a quantity of dust which sensor is provided at a predetermined position of a suction path for sucking air by a suction force of the vacuum cleaner, whereby an output signal is supplied to a display device so that a display corresponding to the quantity of the sucked dust, which signal is output from the optical dust sensor and is varied in a stageless manner corresponding to the quantity of the dust.

REFERENCES:
patent: 4601082 (1986-07-01), Kurz
patent: 4680827 (1987-07-01), Hummel
patent: 4920605 (1990-05-01), Takashima
patent: 5323483 (1994-06-01), Baeg
patent: 5404612 (1995-04-01), Ishikawa
One-page Constitution and Purpose, JP7250794, Oct. 3, 1995, Moro Masaru, Floor Brush for Vacuum Cleaner.
One-page Constitution and Purpose, Suction Device for Vacuum Cleaner.

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