发明名称 |
BÜRSTENKOPFAUSTAUSCHANZEIGEVORRICHTUNG FÜR ELEKTRISCHE ZAHNBÜRSTE |
摘要 |
A system for determining when the brushhead portion of a power toothbrush should be replaced. The system includes a piezoelectric transducer for detecting oscillations of the brushhead. The piezoelectric transducer produces an output signal which is used to drive a counter which accumulates the total number of such oscillations. When the total number of oscillations reaches a preselected number, which is representative of typical use of the toothbrush for a predetermined amount of time, e.g. six months, a signal is produced which drives an alarm indicator, the action of which is recognizable by the user of the toothbrush. |
申请公布号 |
DE60111844(D1) |
申请公布日期 |
2005.08.11 |
申请号 |
DE2001611844 |
申请日期 |
2001.04.27 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN |
发明人 |
LUNDELL, G.;JUE, CLIFFORD;PAPADOPOULOS, M. |
分类号 |
A46B15/00;A61C17/22;(IPC1-7):A61C17/22 |
主分类号 |
A46B15/00 |
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