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1. US20180014923 - Electric toothbrush

Office United States of America
Application Number 15552687
Application Date 24.02.2016
Publication Number 20180014923
Publication Date 18.01.2018
Grant Number 10357347
Grant Date 23.07.2019
Publication Kind B2
IPC
A61C 17/22
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
17Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
16Power-driven cleaning or polishing devices
22with brushes, cushions, cups or the like
A61C 17/34
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
17Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
16Power-driven cleaning or polishing devices
22with brushes, cushions, cups or the like
32reciprocating or oscillating
34driven by electric motor
CPC
A61C 17/221
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
17Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses
16Power-driven cleaning or polishing devices
22with brushes, cushions, cups, or the like
221Control arrangements therefor
A61C 17/3481
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
17Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses
16Power-driven cleaning or polishing devices
22with brushes, cushions, cups, or the like
32reciprocating or oscillating
34driven by electric motor
3409characterized by the movement of the brush body
3481Vibrating brush body, e.g. by using eccentric weights
A61C 17/222
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
17Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses
16Power-driven cleaning or polishing devices
22with brushes, cushions, cups, or the like
222Brush body details, e.g. the shape thereof or connection to handle
A61C 17/224
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
17Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses
16Power-driven cleaning or polishing devices
22with brushes, cushions, cups, or the like
224Electrical recharging arrangements
Applicants Colgate-Palmolive Company
Omron Healthcare Co., Ltd.
Inventors Yasunori Hata
Tadashi Tone
Hideaki Yoshida
Priority Data 2015035752 25.02.2015 JP
Title
(EN) Electric toothbrush
Abstract
(EN)

An electric toothbrush includes a stem member on which a replaceable toothbrush is mounted. The stem member is made of synthetic resin and has a cavity for accommodating a DC motor and a vibration shaft connected to the DC motor. One end of the cavity is opened for inserting the DC motor and the vibration shaft together, and the other end thereof is closed. A free end of the vibration shaft is rotatably supported at the closed end of the cavity. The cavity has a cone-shaped wall so that the DC motor is firmly held in the cavity by a rigid contact between a shoulder portion of the DC motor and the cone-shaped wall.