US 7,570,018 B2
Rechargeable powered device
Kenneth Waguespack, North Brunswick, N.J. (US)
Assigned to Colgate-Palmolive Co., New York, N.Y. (US)
Filed on Feb. 07, 2005, as Appl. No. 11/50,674.
Prior Publication US 2006/0176017 A1, Aug. 10, 2006
Int. Cl. H02J 7/00 (2006.01)
U.S. Cl. 320—113  [320/114; 320/115] 7 Claims
OG exemplary drawing
 
1. A rechargeable powered toothbrush system comprising:
a rechargeable powered toothbrush having a motor and a rechargeable small-capacity battery coupled to the motor, the rechargeable small-capacity battery having a storage capacity sufficient for at least a single average use of the toothbrush and up to a few uses; and
a charger electrically coupled to the rechargeable powered toothbrush, the charger comprising
a holding unit for the rechargeable powered toothbrush and
a large-capacity battery having a comparatively larger storage capacity than the rechargeable small-capacity battery, the large-capacity battery configured for charging the small-capacity battery when the rechargeable toothbrush is coupled to the charger and being retained in a storage position in the holding unit,
wherein the charger further comprises an indicator indicating a state of the small-capacity battery, the state including a single use state when the small-capacity battery is charged with sufficient energy to power the rechargeable toothbrush for the single average use and a full charge state when the small-capacity battery is substantially fully charged to an energy level sufficient to power the rechargeable toothbrush for a plurality of the single average uses.