Twin-motor independent vacuum cleaner
1 Assignment
0 Petitions
Accused Products
Abstract
A cordless vacuum cleaner including a structure mounted on transport members, a turbine carried by the structure, a beater brush secured to the structure and connected to a collector via a first duct, a suction device connected to the collector via a flexible second duct, means for selectively putting the first duct or the coupling for the second duct into communication with the collector, a first motor for driving the turbine, a second motor for driving the beater brush, an electrical circuit for powering the motors from a battery carried by said structure, and a three-position control member. When the control member is in a third position, the two motors are powered in series.
21 Citations
35 Claims
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1-17. -17. (canceled)
- 18. A cordless vacuum cleaner, comprising a structure mounted on transport members, a turbine carried by the structure for creating suction in a particle collector via a filter membrane, a beater brush secured to the structure and connected to the collector via a first duct, a suction device suitable for being connected to the collector via a flexible second duct, means for selectively putting said first duct or the coupling for said second duct into communication with the collector, a first motor for driving the turbine, a second motor for driving the beater brush, an electrical circuit for powering the motors from a battery carried by the structure, and a three-position control member serving in a first position to stop the motors, in a second position to cause the first motor to operate, and in a third position to cause both motors to operate simultaneously, wherein the motors are electrically powered in such a manner that when the control member is in the third position, the two motors are powered in series.
- 27. A cordless vacuum cleaner, comprising a structure mounted on transport members, a turbine carried by the structure for creating suction in a particle collector via a filter membrane, a beater brush secured to the structure and connected to the collector via a first duct, a suction device suitable for being connected to the collector via a flexible second duct, means for selectively putting said first duct or the coupling for the second duct into communication with the collector, a first motor for driving the turbine, a second motor for driving the beater brush, an electrical circuit for powering the motors from a battery carried by said structure, and a three-position control member serving in a first position to stop the motors, in a second position to cause the first motor to operate, and in a third position to cause both motors to operate simultaneously, wherein the control member comprises a knob mounted to turn on the structure, said knob presenting the means for selectively putting the first duct or the coupling for the second duct into communication with the collector, and further including two cam paths each suitable for controlling the opening and the closing of a first switch which, when in the closed position, powers at least the first motor, and a second switch controlling the operation of the second motor.
Specification