US5366785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulosic fibrous structures having pressure differential induced protuberances and a process of making such cellulosic fibrous structures
Assignee: Procter and Gamble Co
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Filing: 1993-10-01
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Granted: 1994-11-22
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Expires: 2013-10-01
Abstract
Abstract Disclosed is a cellulosic fibrous structure, particularly a consumer product such as toilet tissue, facial tissue or a paper towel. In a first embodiment, extending outwardly from each face of the cellulosic fibrous structure is a plurality of protuberances. The protuberances extend bilaterally outwardly from the plane of the cellulosic fibrous structure in both directions. The bilaterally extending protuberances increase the caliper and texture of the consumer product embodied in the cellulosic fibrous structure. In a second embodiment, the protuberances extend outwardly, and are induced by fluid embossing, rather than mechanical embossing. Also disclosed is a fluid embossing process for making such cellulosic fibrous structures.
Inventors
- 👤 Albert H. Sawdai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:14
CPC Classifications
D; D21; D21F; D21F11/00; D21F11/14; D04; D04H; D04H1/00; D04H1/70; D04H1/72; D04H1/732; D21F11/006; D21H; D21H25/00; D21H25/005; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T428/24455; Y10T428/24479; Y10T428/24521; Y10T428/24554; Y10T428/24595; Y10T428/24603; Y10T428/24628; Y10T428/24636; Y10T428/24942; Y10T428/2495; Y10T428/24992; Y10T428/31504; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
131 words
A generally planar single lamina cellulosic fibrous structure comprising an essentially continuous macroscopically monoplanar network, said network having first and second faces, and first and second pluralities of discrete protuberances dispersed therein, said first plurality of protuberances extending outwardly from the plane of said lamina in a first direction generally perpendicular to the plane of lamina and said second plurality of protuberances extending outwardly from the plane of said lamina in the opposite direction; wherein said protuberances of said first and second pluralities have a density less than the density of said continuous network; wherein said essentially continuous network has a particular thickness, and said protuberances of either plurality extend outwardly from the respective face of said network a distance greater than said particular thickness; and wherein the protuberances are convexo-concave.
Claim 2
Dependent Claim
131 words
A generally planar single lamina cellulosic fibrous structure comprising an essentially continuous macroscopically monoplanar network, said network having first and second faces, and first and second pluralities of discrete protuberances dispersed therein, said first plurality of protuberances extending outwardly from the plane of said lamina in a first direction generally perpendicular to the plane of lamina and said second plurality of protuberances extending outwardly from the plane of said lamina in the opposite direction; wherein said protuberances of said first and second pluralities have a density less than the density of said continuous network; wherein said essentially continuous network has a particular thickness, and said protuberances of either plurality extend outwardly from the respective face of said network a distance greater than said particular thickness; and wherein the protuberances are convexo-concave.
Claim 3
Dependent Claim
18 words
A cellulosic fibrous structure according to claim 1 wherein said protuberances of said first plurality are bilaterally staggered.
Claim 4
Dependent Claim
18 words
A cellulosic fibrous structure according to claim 3 wherein said protuberances of said second plurality are bilaterally staggered.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-11-21 | 1998-05-23 | 1998-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-21 | 2002-05-23 | 2002-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-21 | 2006-05-23 | 2006-11-22 | $7700.00 | Window Closed / Lapsed |