Surface cleaning apparatus
First Claim
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1. A surface cleaning apparatus comprising:
- (a) a surface cleaning head comprising a dirty air inlet, a brush and a rotatable brush motor;
(b) air flow path extending from the dirty air inlet to a clean air outlet and including an air treatment member and a suction motor;
(c) a main electrical switch coupled to an external power source; and
,(d) a switching circuit operable in a first mode wherein power is supplied to the suction motor and the rotatable brush motor and the switching circuit is also operable in a second mode wherein power is supplied to the suction motor but not the rotatable brush motor,(e) the rotatable brush motor having a first end and an opposing second end, the rotatable brush motor being connected to a first diode on the first end and to a second diode on the second end, the first diode and the second diode being connected in series with the rotatable brush motor to provide a series combination, and the series combination of the first diode, the rotatable brush motor and the second diode being connected in parallel with the external power source.
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Abstract
A surface cleaning apparatus comprises a first flexible electrified air flow conduit having an air inlet end that is electrified.
245 Citations
18 Claims
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1. A surface cleaning apparatus comprising:
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(a) a surface cleaning head comprising a dirty air inlet, a brush and a rotatable brush motor; (b) air flow path extending from the dirty air inlet to a clean air outlet and including an air treatment member and a suction motor; (c) a main electrical switch coupled to an external power source; and
,(d) a switching circuit operable in a first mode wherein power is supplied to the suction motor and the rotatable brush motor and the switching circuit is also operable in a second mode wherein power is supplied to the suction motor but not the rotatable brush motor, (e) the rotatable brush motor having a first end and an opposing second end, the rotatable brush motor being connected to a first diode on the first end and to a second diode on the second end, the first diode and the second diode being connected in series with the rotatable brush motor to provide a series combination, and the series combination of the first diode, the rotatable brush motor and the second diode being connected in parallel with the external power source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A surface cleaning apparatus comprising:
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(a) a surface cleaning head comprising a dirty air inlet, a brush and a rotatable brush motor; (b) air flow path extending from the dirty air inlet to a clean air outlet and including an air treatment member and a suction motor; and (c) a switching circuit coupled to an external power source and operable in three modes, wherein power is supplied to the suction motor and the rotatable brush motor in a first mode, wherein power is supplied to the suction motor but not the rotatable brush motor in a second mode, and wherein no power is supplied to the suction motor and the rotatable brush motor in the third mode, (d) the rotatable brush motor having a first end and an opposing second end, the rotatable brush motor being connected to a first diode on the first end and to a second diode on the second end, the first diode and the second diode being connected in series with the rotatable brush motor to provide a series combination, and the series combination of the first diode, the rotatable brush motor and the second diode being connected in parallel with the external power source. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification