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US 4,964,857 AGranted
Biodegradable disposable diaper
OwnerCharles Osborninventor
Life of this patent
Estimating the term…
Abstract
The present invention relates to an improved disposable diaper that is biodegradable, sanitary and environmentally safe. In general, the improved diaper has a removable inner sheet of material disposed of by flushing in a toilet or water closet. The remainder of the diaper is made of a biodegradable material that is disposed of in a conventional landfill.
Claims15
Improved biodegradable disposable diaper comprising:
- a removable inner sheet having a layer of liquid permeable material, an interior first layer of absorbant material and a first layer of moisture repellant material;
- a removal means attached to the inner sheet for easy removal of the inner sheet;
- a second layer of absorbant material associated with the inner sheet;
- a second layer of moisture repellant material associated with the second layer of absorbant material and extending beyond the inner sheet along both longitudinal and transverse planes;
- a plurality of perforations in the inner sheet located at the peripheral coterminous points of the inner sheet and second layer of moisture repellant material;
- and
- a plurality of fastening tabs attached to the second layer of moisture repellant material.
4 more elements
An improved biodegradable disposable diaper comprising:
- a removable inner sheet having a layer of liquid permeable material, an interior first layer of absorbant material and a first layer of coated paper attached to the absorbant material;
- a drawstring attached to the inner sheet along its Periphery for easy removal of the inner sheet;
- a second layer of absorbant material associated with the coated paper of the inner sheet;
- a second layer of coated paper associated with the second layer of absorbant material and extending beyond the inner sheet along both longitudinal and transverse planes;
- a plurality of perforations in the inner sheet located at the peripheral coterminous points of the inner sheet and second layer of coated paper;
- and
- a plurality of fastening tabs attached to the extended portion of the second layer of coated paper.
4 more elements
An improved biodegradable disposable diaper comprising:
- a removable inner sheet having a layer of liquid permeable material, a first layer of absorbant cotton;
- a first layer of paper coated with a natural wax attached to the first layer of absorbant cotton and having hollow channels along its periphery;
- a twisted paper drawstring attached to the inner sheet along its periphery through the hollow channels therein for easy removal of the inner sheet;
- a second layer of absorbant cotton associated with the first layer of paper coated with a natural wax;
- a second layer of paper coated with a natural wax associated with the second layer of absorbant cotton and extending beyond the inner sheet along both longitudinal and transverse planes;
- a plurality of perforations in the inner sheet located at the peripheral coterminous points of the inner sheet and second layer of paper coated with a natural wax for easy detachment of the inner sheet;
- and
- a plurality of fastening tabs attached to the extended portion of the second layer of paper coated with a natural wax.
5 more elements
Dependencies are inferred from the claim text.