Universally adaptable toothbrush head and improved automatic power-driven toothbrushes

• US 20040128778A1
• Filed: 08/08/2003
• Published: 07/08/2004
• Est. Priority Date: 02/06/2001
• Status: Abandoned Application

• Current Assignee: Man-Kwan Wong
• Original Assignee: Man-Kwan Wong
• Inventors: Wong, Man-Kwan
• Application Number:
  US10/637,293
• Publication Number:
  US 20040128778A1
• Time in Patent Office: Days
• US Class Current: 15/22.1
• CPC Class Codes: A61C 17/224 Electrical recharging arrangements
• CPC Class Codes: A61C 17/34 driven by electric motor
• CPC Class Codes: A61C 2204/002 using batteries

Abstract

The present invention discloses a toothbrush head universally adaptable for operation with a single-direction rotational shaft of a fist electrical toothbrush and a bi-directional swinging shaft of a second electrical toothbrush. In a preferred embodiment, the toothbrush head includes a first half-cycle gear and a second half-cycle gear for engaging a set of gears disposed on a surface of a bristle plate.

Claims

1. A toothbrush head comprising:

a universally adapting means for adapting to an operation with a single-direction rotational shaft of a fist electrical toothbrush and a bi-directional swinging shaft of a second electrical toothbrush.

2. The toothbrush head of claim 1 wherein:

said universally adapting means includes a first half-cycle gear and a second half-cycle gear for engaging a set of gears disposed on a surface of a bristle plate.

3. A method for using a toothbrush head comprising:

engaging the toothbrush head to a single-direction rotational shaft of a fist electrical toothbrush for actuating a single-direction rotation of a first set of toothbrush bristles; and

engaging the toothbrush head to a bi-directional swinging shaft of a second electrical toothbrush for actuating a bi-directional swinging motion of a second set of toothbrush bristles.

4. The method of claim 3 further comprising:

employing a first half-cycle gear and a second half-cycle gear for engaging a set of gears disposed on a surface of a bristle plate.