Absorbent structure

Surgery – Means and methods for collecting body fluids or waste material – Absorbent pad for external or internal application and...

Reexamination Certificate

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Details

C604S385010, C604S385101, C428S213000, C428S218000

Reexamination Certificate

active

06974891

ABSTRACT:
An absorbent structure in an absorbent article such as a diaper, incontinence guard, sanitary napkin, wound dressing, bed protection and the like, formed from at least two superposed layers (5′; 5″) of one or more web-shaped absorption materials (5), said layers (5′; 5″) having different widths as seen in the transverse direction of the article. The absorbent structure (4) made of said layers has been compressed to a thickness which is substantially the same over the width of the structure, in such a way that the structure has a higher density in the areas thereof where the layers overlap each other and a lower density in other areas.

REFERENCES:
patent: 1974578 (1934-09-01), Medoff
patent: 3508548 (1970-04-01), Itochstrasser et al.
patent: 3545441 (1970-12-01), Graudahl
patent: 3800797 (1974-04-01), Tunc
patent: 3854481 (1974-12-01), Messing
patent: 3865112 (1975-02-01), Roeder
patent: 3906952 (1975-09-01), Zamist
patent: 4010752 (1977-03-01), Denny
patent: 4027672 (1977-06-01), Karami
patent: 4232674 (1980-11-01), Melican
patent: 4676784 (1987-06-01), Erdman et al.
patent: 4676787 (1987-06-01), Sergeant
patent: 4714466 (1987-12-01), Dohzono et al.
patent: 5047024 (1991-09-01), Glassman
patent: 5447506 (1995-09-01), Lindquist
patent: 5741380 (1998-04-01), Hoyle et al.
patent: 0863582 (1961-03-01), None

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