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Current content: 155 519 367 patent documents

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123 361 new documents added

1 354 331 documents amended

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EP 0324120 B1 19920812 - ELECTRONIC TOOTHBRUSH

Title (en)

ELECTRONIC TOOTHBRUSH

Publication

EP 0324120 B1 19920812 (EN)

Application

EP 88120821 A 19881213

Priority

JP 51988 A 19880105

Abstract (en)

[origin: EP0324120A1] A toot-brush comprising a handle (3) and a brush portion (5). The handle contains a piezo-electric generating element (4) having two electrodes (7,8). A diode (9) is situated between electrodes (7,8) for rectifying the flow of negative electrons from the brush portion (5) via the user's body to the handle (3). The flow of electrons induces a reducing process which effectively removes dental plaque.

IPC 1-7

A46B 15/00

IPC 8 full level

A46B 15/00 (2006.01); A61C 17/00 (2006.01)

CPC (source: EP)

A46B 15/0002 (2013.01); A46B 15/0022 (2013.01); A46B 2200/1066 (2013.01)

Designated contracting state (EPC)

BE CH DE FR GB LI

DOCDB simple family (publication)

EP 0324120 A1 19890719; EP 0324120 B1 19920812; DE 3873727 D1 19920917; DE 3873727 T2 19930415; JP H01178256 A 19890714

DOCDB simple family (application)

EP 88120821 A 19881213; DE 3873727 T 19881213; JP 51988 A 19880105