Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
278 words
A disposable diaper comprising: a liquid pervious topsheet; a liquid impervious backsheet, said backsheet being affixed to said topsheet; an absorbent core for absorbing liquids, said absorbent core being encased between said topsheet and said backsheet; a longitudinal marginal portion adjacent each longitudinal side of the disposable diaper; an elastic member operatively associated with each of said longitudinal marginal portions; a first waist portion at one end of the disposable diaper; a second waist portion at the opposite end of the disposable diaper; and a fastening device for maintaining said first waist portion and said second waist portion in an overlapping configuration during use, characterised in that said fastening device comprises a first member comprising a plurality of fiber elements; and a second member engageable with said fiber elements of said first member, said second member comprising: a) a base, preferably being flexible, having a first surface and a second surface, and b) a plurality of engaging elements extending from said first surface of said base, each of said engaging elements comprising i) a stem supported at one end thereof on said base, and ii) an enlarged head positioned at the end of said stem opposite said base, said head having a smooth, generally convex, preferably semi-spherical, top surface and a bottom surface extending radially outwardly from said stem along at least two radii, preferably each radius, of said stem to the periphery of said top surface, said bottom surface adapted to be engaged by at least one of said fiber elements, wherein the fiber overhang ratio of said fastening device is at least 2:1, preferably 3:1, and the height ratio is at least about 5:1, preferably 7:1.
Claim 2
Dependent Claim
278 words
A disposable diaper comprising: a liquid pervious topsheet; a liquid impervious backsheet, said backsheet being affixed to said topsheet; an absorbent core for absorbing liquids, said absorbent core being encased between said topsheet and said backsheet; a longitudinal marginal portion adjacent each longitudinal side of the disposable diaper; an elastic member operatively associated with each of said longitudinal marginal portions; a first waist portion at one end of the disposable diaper; a second waist portion at the opposite end of the disposable diaper; and a fastening device for maintaining said first waist portion and said second waist portion in an overlapping configuration during use, characterised in that said fastening device comprises a first member comprising a plurality of fiber elements; and a second member engageable with said fiber elements of said first member, said second member comprising: a) a base, preferably being flexible, having a first surface and a second surface, and b) a plurality of engaging elements extending from said first surface of said base, each of said engaging elements comprising i) a stem supported at one end thereof on said base, and ii) an enlarged head positioned at the end of said stem opposite said base, said head having a smooth, generally convex, preferably semi-spherical, top surface and a bottom surface extending radially outwardly from said stem along at least two radii, preferably each radius, of said stem to the periphery of said top surface, said bottom surface adapted to be engaged by at least one of said fiber elements, wherein the fiber overhang ratio of said fastening device is at least 2:1, preferably 3:1, and the height ratio is at least about 5:1, preferably 7:1.
Claim 3
Dependent Claim
57 words
A disposable diaper of Claim 1 wherein said fastening device additionally comprises a fastening tape secured on each longitudinal side of the diaper on said first waist portion, each of said fastening tapes having a manufacturer's and a user's end, and wherein said second member is positioned on said user's end of each of said fastening tapes.
Claim 4
Dependent Claim
44 words
A disposable diaper according to either one of claims 1 and 2 wherein said first member is secured to the outside of the said second waist portion and said second member is secured to the inside of each side of said first waist portion.
Claim 5
Dependent Claim
33 words
A disposable diaper according to any of the preceding claims wherein said engaging elements are disposed relative to said base at an angle of between 30° and 90°, preferably between 45° and 75°.
Claim 6
Dependent Claim
24 words
A disposable diaper according to any of the preceding claims wherein said fastening device has a stem overhang ratio of at least about 0.1:1.
Claim 7
Dependent Claim
19 words
A disposable diaper according to any of the preceding claims wherein said bottom surface of said head is curvilinear.
Claim 8
Dependent Claim
31 words
A disposable diaper according to any of the preceding claims wherein said engaging elements are disposed on said base at a density of at least 100 engaging elements per square inch.
Claim 9
Dependent Claim
18 words
A disposable diaper according to any of the preceding claims wherein said engaging elements comprise a polypropylene material.
Claim 10
Dependent Claim
25 words
A disposable diaper according to any of the preceding claims wherein said fastening device has a resistance to peel forces of at least 200 grams.