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US 2014/0276523 A1Published application
Tampon Having Spirally Shaped Grooves
AssigneeEveready Battery Company, Inc.
InventorHans Werner Schoelling
Life of this patent
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Abstract
A tampon for feminine hygiene, having an insertion end, a recovery end, a recovery tape, and a longitudinal axis. The tampon is made of compressed fibrous material and has an outer surface that is at least partially provided with spirally shaped, pressed longitudinal grooves. The grooves define spirally shaped longitudinal ribs. Also disclosed is a method for producing the tampon.
Claims20
A tampon comprising:
- a compressed fiber core having an insertion end, a recovery end, a longitudinal axis, and a substantially cylindrical outer surface, said fiber core having a first density and a first circumference;
- wherein at least one longitudinal ribs extend radially outward from said fiber core, said ribs being spaced proximal to the core forming at least one spiral liquid guide duct, and said at least one rib defined by at least one longitudinal groove on at least a portion of said outer-surface.
A tampon comprising:
- a compressed fiber core having an insertion end, a recovery end, a longitudinal axis, and a substantially cylindrical outer surface, said fiber core having a first density and a first circumference;
- wherein said outer surface of said tampon is at least partially provided with at least one spirally shaped, longitudinal rib extending radially outward from said fiber core,
- wherein said tampon is dimensionally stable and has sufficient column strength to permit insertion thereof into a body cavity.
An improved tampon, comprising:
- a compressed fibrous material forming a core having an insertion end and a recovery end, a longitudinal axis and a substantially cylindrical outer surface area, said core having a mass,
- wherein said fiber core has at least one spiral guide duct extending along said longitudinal axis, said spiral guide duct defined proximally by said core and remotely by at least one longitudinal rib, said at least one spiral guide duct increasing said outer surface area,
- wherein said at least one spiral guide duct improves the absorption capacity and the expansion capacity of said tampon while minimizing said mass.
Dependencies are inferred from the claim text.