# US 10,864,066 B2 · Rotating electric toothbrush

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,864,066 B2
- Document ID: US10864066B2
- Status: Granted
- Kind: B2
- Application number: 14/787,175
- Filed: 2014-04-24
- Published: 2016-04-14
- Granted: 2020-12-15
- Earliest claimed: 2013-04-24
- Applicants: Dong Chul Lee
- Inventors: Dong Chul Lee
- Web page: https://patentgrep.com/patent/US10864066B2

## CPC

- A61C 17/3418: {Rotation around the axis of the toothbrush handle}
- A46B 7/10: as a rotating cylinder
- A46B 9/06: Arrangement of mixed bristles or tufts of bristles, e.g. wire, fibre, rubber
- A46B 13/001: {Cylindrical or annular brush bodies}
- A46B 13/005: {made up of a series of longitudinal strips or segments}
- A46B 15/0075: {Brushes with an additional massage device}
- A61B 17/244: {for cleaning of the tongue}
- A61C 17/26: driven by electric motor
- A61C 17/3472: {with combined movements of the brush body}
- A61H 13/00: Gum massage
- A61C 17/3445: {Translation along the axis of the toothbrush handle}
- A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00)
- A46B: BRUSHES (handles not integral with brushware B25G)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61H: PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY (electrotherapy, magnetotherapy, radiation therapy or ultrasound therapy A61N)

## Abstract

The present invention relates to a rotating electric toothbrush comprising: a main body having a receiving space formed therein, a driving means received in the interior of the main body and providing a rotational force, a toothbrush handle having one end detachably coupled to the driving means, and receiving a rotational force of the driving means to be rotated, a support means coupled to the outer peripheral surface of the other end of the toothbrush handle and having plate-shaped support bodies made of a ductile material and radially formed to be spaced apart from each other, and a plurality of toothbrush bristles implanted between the support bodies. The present invention has a structure in which the toothbrush bristles are radially implanted on the outer peripheral surface of the end of the cylindrical rotating toothbrush handle, thereby removing food leftovers sandwiched on a tooth surface or at an interdental gap without damage of gums, and more surely removing dental plaque from the tooth surface due to silicon bristles implanted between the toothbrush bristles. Further, the silicon bristles implanted between the toothbrush bristles support the toothbrush bristles, thereby preventing deformation of the toothbrush bristles, and a space for receiving toothpaste is formed between the silicon bristles, thereby preventing the toothpaste from easily slipping off. Further, a tongue cleaner, which is detachable and made of a silicon material, is further comprised, thereby easily cleaning a tongue.

## Claims

### Claim 1

A rotating electric toothbrush, comprising:
a main body having a receiving space thereinside;
a driving means disposed in the receiving space of the main body and configured to supply torque;
a driving shaft rotating by the torque of the driving means, wherein a first end of the driving shaft is coupled with the driving means;
a toothbrush shaft arranged in a straight line with the driving shaft, wherein a first end portion of the toothbrush shaft is detachably coupled with a second end of the driving shaft, whereby the toothbrush shaft is configured to rotate along with the driving shaft by the torque from the driving means; and
a support means secured to an outer circumference of a second end portion of the toothbrush shaft and including a plurality of support bodies formed made of an elastic material, wherein each of the support bodies includes a first support bristle and a second support bristle, the first support bristle and the second support bristle being formed by a laminar support bristle body extending along the axis of the toothbrush shaft and also extending in a radial direction and spaced apart from each other by a predetermined distance such that a first space is formed between the first support bristle and the second support bristle,
wherein a second space is formed between a first support body and a second support body,
no toothbrush bristle is planted in the first space, and
a plurality of toothbrush bristles are planted in the second space,
wherein the support means further includes a ring engaging unit surrounding the toothbrush shaft.

### Claim 2 (depends on 1)

The toothbrush of claim 1, wherein a tapered portion is formed at a front end of the laminar support bristle body.

### Claim 3 (depends on 1)

The toothbrush of claim 1, wherein the driving means further provides a straight reciprocation movement force.

### Claim 4 (depends on 1)

The toothbrush of claim 1, further comprising:
a mode changing switch configured to change a speed of the driving means by changing the driving mode of the driving means.