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Flexible-diaphragm-for-dispensing-product

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Flexible diaphragm for dispensing product

Details

Inventors: Woodruff, Keith F.;
Assignee: American Cyanamid Company (Stamford, CT)
Primary Examiner: Bratlie; Steven A.
Assistant Examiner:
Attorney, Agent or Firm: Fickey; Charles J.

Device for applying liquid materials to the skin, the device having a liquid container, a poromeric plastic applicator head, and a diaphragm spring holding the applicator in said device. The diaphragm spring provides a liquid tight seal between the poromeric applicator head and the liquid container and also allows movement of the poromeric applicator head in a vertical direction to create a pressure within the liquid container and provide force to aid in moving the liquid through the poromeric applicator head to its outer surface.

DETAILED DESCRIPTION What is claimed is: 1.
A liquid applicator suitable for use in the application of liquids to a surface of the human body comprising a container having a container body adapted for storing a quantity of liquid, said container having an opening at the upper end thereof; annular spring means said annular spring means comprising outer and inner concentric cylindrical segments joined by an undulate annular planar member, said spring means being positioned in said container, applicator means being secured in said spring means; said annular spring means forming a liquid tight seal between said applicator means and said container body; said applicator means comprising a non-flexible, non-deformable, sintered, porous synthetic resin structure having a controlled porosity and having omni-directional interconnecting pores.
2.
The liquid applicator of claim 1 wherein said outer cylindrical segment of said spring means fits in the opening of said container.
3.
The liquid applicator of claim 1 wherein said applicator means fits in the inner of said concentric cylindrical segments.
4.
The liquid applicator of claim 1 wherein the upper edge of said inner cylindrical segment is lower in an axial direction than the upper edge of said outer cylindrical segment.
5.
The liquid applicator of claim 1 wherein said undulate planar member has a downward annular undulation.
6.
The liquid applicator of claim 1 wherein said container contains an absorbent reservoir means for a quantity of liquid.
7.
The liquid applicator of claim 6 wherein said reservoir means comprises a natural or synthetic fibrous material.
8.
The liquid applicator of claim 1 comprising in addition a cap fitted over said applicator means.

Description:
The present invention relates to a liquid applicator for dispensing toiletries to the skin, and particularly for the application of antiperspirants and deodorants to the human axilla.
Liquid applicators in general are well-known in the prior art, particularly the roll-on type commonly for antiperspirants and deodorants

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