Floor care apparatus with multiple agitator speeds and...

Details Floor care apparatus with multiple agitator speeds and... Floor care apparatus with multiple agitator speeds and...

2007-08-07

2007-08-07

Snider, Theresa T. (Department: 1744)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S384000, C015S377000

Reexamination Certificate

active

10764401

ABSTRACT:
A floor care apparatus has a nozzle assembly housing an agitator. A motor couples to the agitator to drive it at two or more speeds and constant suction power. A user indicates their mode-of-operation preference by positioning a switch. An agitator motor control circuit, responsive to the switch, effectuates motor control by supplying either a fixed duty cycle signal or a substantially constant voltage signal. The fixed duty cycle signal includes a waveform with a substantially constant voltage value that is on for a first or first and second of four quarters of the waveform period. Thereafter, it repeats for additional periods. The switch preferably embodies a resistor network and a fixed current source that creates a voltage input to an A/D converter that falls within a specified range. Other apparatus embodiments contemplate multiple agitators with one or more agitator motors. A suction fan motor, separate from the agitator motor(s), may also exist.

REFERENCES:
patent: 3579706 (1971-05-01), Hetland
patent: 3588946 (1971-06-01), Hetland
patent: 4370777 (1983-02-01), Woerwag
patent: 4399585 (1983-08-01), Kullik et al.
patent: 4447930 (1984-05-01), Glenn, III et al.
patent: 4457042 (1984-07-01), Jones et al.
patent: 4611365 (1986-09-01), Komatsu et al.
patent: 4654924 (1987-04-01), Getz et al.
patent: 4654927 (1987-04-01), Novinger
patent: 4880474 (1989-11-01), Koharagi et al.
patent: 4953253 (1990-09-01), Fukuda et al.
patent: 4958406 (1990-09-01), Toyoshima et al.
patent: 5144715 (1992-09-01), Matsuyo et al.
patent: RE34286 (1993-06-01), Toyoshima et al.
patent: 5243732 (1993-09-01), Koharagi et al.
patent: 5255409 (1993-10-01), Fujiwara et al.
patent: 5276939 (1994-01-01), Uenishi
patent: 5381584 (1995-01-01), Jyoraku et al.
patent: 5463299 (1995-10-01), Futami et al.
patent: 5507067 (1996-04-01), Hoekstra et al.
patent: 5515572 (1996-05-01), Hoekstra et al.
patent: 5554917 (1996-09-01), Kurz et al.
patent: 5722109 (1998-03-01), Delmas et al.
patent: 5881430 (1999-03-01), Driessen et al.
patent: 6008608 (1999-12-01), Holsten et al.
patent: 6301743 (2001-10-01), Cloud, III et al.
patent: 6400048 (2002-06-01), Nishimura et al.
patent: 6446302 (2002-09-01), Kasper et al.
patent: 6457205 (2002-10-01), Conrad
patent: 6479956 (2002-11-01), Kawabata et al.
patent: 6490752 (2002-12-01), Kushida et al.
patent: 6526622 (2003-03-01), Conrad
patent: 6545443 (2003-04-01), Kushida
patent: 2001/0028239 (2001-10-01), Vanderhenst
patent: 2002/0056169 (2002-05-01), Kushida et al.
patent: 2002/0057069 (2002-05-01), Kushida
patent: 2002/0112315 (2002-08-01), Conrad
patent: 2002/0175646 (2002-11-01), Kushida et al.
patent: 2002/0185987 (2002-12-01), Kushida et al.
patent: 2004/0134014 (2004-07-01), Hawkins et al.

Affiliated with

Also associated with

Rating

Floor care apparatus with multiple agitator speeds and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Floor care apparatus with multiple agitator speeds and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Floor care apparatus with multiple agitator speeds and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3889679