A dispensing toothbrush

A technology for toothbrushes and fluid distribution, used in liquid distribution, brushes, dentistry, etc.

Inactive Publication Date: 2008-12-03
THE PROCTER & GAMBLE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] None of the propellant-based dentifrice dispensers disclosed above provide a structure suitable for use in electric toothbrushes

Method used

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  • A dispensing toothbrush
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  • A dispensing toothbrush

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] see Figures 1 to 4 , the rechargeable electric dispensing toothbrush 1 of the present invention includes an applicator head 2 and a handle 3 . The handle 3 accommodates a motor 4 and a handle transmission shaft 5 . The motor is coupled to the drive shaft via a crank 6 which converts the rotational motion of the motor into reciprocating motion of the drive shaft. The handle drive shaft is supported on the outside of a central base 7 shown in isolation at Figure 4 middle. A first recess 9 in the first end of the base accommodates a bag-in-can cartridge 10, shown in isolation at image 3 middle. The groove 9 is open towards the first end of the base so that the cartridge can be easily inserted or removed, but all other surfaces are closed so that the cartridge is isolated from the other working parts of the handle when the handle is fully assembled of. The base also includes a second transverse groove 8 for housing the motor 4 . The base 7 includes in its second e...

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PUM

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Abstract

The invention provides an electrically driven dispensing device, particularly a toothbrush, utilising replaceable pressurised cartridges, of the bag-in-can type. The toothbrush has a 'top- loading' structure in which the cartridge is housed in a recess at the brush end of the toothbrush handle, the recess being accessible by removing the brush head. Other features include an elastomeric valve outlet located on the brush head which can also function as a tooth wiping or polishing blade, and a non-linear drive shaft which enables the brush head to be driven from a motor located at the based end of the handle whilst keeping the handle slim in design. The invention further provides bag-in-can pressurised cartridges for use in such a brush. Advantages of such cartridges include the ability to uniformly dose dentifrice of high solids content, or dentifrice otherwise having a high viscosity. The invention further provides replaceable heads for such a brush.

Description

technical field [0001] The present invention relates to a dispensing toothbrush capable of dispensing high solids toothpaste with convenient push button operation. The invention also relates to a replaceable toothpaste cartridge that can be used with such a toothbrush. The invention also relates to the construction of such toothbrushes to facilitate toothpaste cartridge replacement. Background technique [0002] The reality remains that brushing typically involves the process of squeezing toothpaste onto the head of the toothbrush prior to brushing. It has long been recognized that greater convenience can be provided by providing toothbrushes with built-in reservoirs from which a person can dispense dentifrice intermittently or continuously during brushing. This practice also facilitates a more even delivery of dentifrice throughout the brushing session. [0003] The above ideas are not new. For example, US 730,040 discloses a toothbrush with a simple container for feedi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C17/22A47K5/14
CPCA61C17/22B65D83/46A61C17/227A47K5/18A46B15/00A47K5/14
Inventor 李·布若维斯
Owner THE PROCTER & GAMBLE COMPANY
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