Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1991-06-28
1992-08-11
Simone, Timothy F.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15339, 15377, 250574, 356438, A47L 928
Patent
active
051367505
ABSTRACT:
A vacuum cleaner with a dust sensor comprising a light-emitting element and a light-receiving element for receiving light emitted from the light-emitting element. The dust sensor is provided in a suction passage between a suction nozzle and a dust collector of the vacuum cleaner for detecting dust in air drawn through the suction nozzle to generate a current corresponding to the detection result. A manual switch decreases sensitivity to dust detection while a rotatable member cleans a carpet. This prevents variations in dust detection from influencing operation of the rotatable cleaning member.
REFERENCES:
patent: 3579706 (1971-05-01), Hetland
patent: 3588943 (1971-06-01), Hetland
patent: 4580311 (1986-04-01), Kurz
patent: 4601082 (1986-07-01), Kurz
patent: 4611365 (1986-09-01), Komatsu et al.
patent: 4654924 (1987-04-01), Getz et al.
patent: 4680827 (1987-07-01), Hummel
patent: 4767213 (1988-08-01), Hummel
patent: 4920605 (1990-05-01), Takashima
patent: 4942640 (1990-07-01), Hayashi et al.
patent: 4977639 (1990-12-01), Takahashi et al.
Takashima Yoshinori
Tanaka Toshiichiro
Cooley C.
Matsushita Electric - Industrial Co., Ltd.
Simone Timothy F.
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