Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1991-11-22
1993-10-12
MacDonald, Allen R.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
395900, G06F 944, A47L 928
Patent
active
052513580
ABSTRACT:
A vacuum cleaner comprising a fuzzy inferring device for determining a motor speed in response to the amount of dust, and means for holding the motor speed determined by the fuzzy inferring device for a predetermined period of time, whereby, after the motor speed is held for the predetermined period time, the motor is driven for a certain period of time at the speed subsequently determined by the fuzzy inferring device.
REFERENCES:
patent: 4601082 (1986-07-01), Kurz
patent: 4654924 (1987-04-01), Getz et al.
patent: 4841815 (1989-06-01), Takahashi
patent: 4930084 (1990-05-01), Hosaka et al.
European Patent Application 91403202.4 Search Report.
Matsuyo Tadashi
Moro Masaru
Yamaguchi Seiji
Davis George
MacDonald Allen R.
Matsushita Electric - Industrial Co., Ltd.
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