Patent US3868205A successfully refreshed from Google Patents.
US3868205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Embossed paper toweling and method of production
Assignee: Kimberly Clark Corp
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Filing: 1973-03-15
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Granted: 1975-02-25
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Expires: 1993-03-15
Abstract
Abstract Absorbent paper sheets in multi-ply web form in which the outer webs of the sheet are creped and consist of a series of ribs and grooves. The webs have their ribs secured together by adhesive dispersed in a pattern consisting of individual adhesive zones. The adhesive zones are obtained by providing in embossing apparatus cooperable rolls each having alternating ribs and grooves, the ribs of one roll being provided with protuberances and the other with recesses. The protuberances cover a relatively small area of the total rib area and carry a web on the protuberances through an adhesive applicator so that a relatively small area of the web receives adhesive for attachment to a second web.
Inventors
- 👤 Gordon D Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:14
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/07; D; D21; D21H; D21H27/00; D21H27/30; D21H27/40; B31F2201/00; B31F2201/07; B31F2201/0707; B31F2201/0715; B31F2201/0723; B31F2201/0728; B31F2201/0733; B31F2201/0735; B31F2201/0738; B31F2201/0758; B31F2201/0761; B31F2201/0766; B31F2201/0784; B31F2201/0787; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1741
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
160 words
In embossing apparatus, a pair of cooperable embossing rolls each having a series of ribs and grooves extending continuously lengthwise of the rolls, the ribs being spaced apart circumferentially by the said grooves disposed about the roll periphery, the ribs of one roll each having a plurality of surface land areas also extending longitudinally on the ribs and projections of these ribs extending above the land areas and separated longitudinally by the land areas and peripherally from projections of adjacent ribs by the said grooves, the ribs of the other roll having surface land areas extending longitudinally on the ribs and recesses of the ribs lying below and separated by these latter mentioned land areas for mating with the said projections, and the projections of the one said roll in the rotation of the cooperable embossing rolls being receivable in the mating recesses of the other said roll, the said recesses being shallow relative to the depth of the ribs.
Claim 2
Dependent Claim
160 words
In embossing apparatus, a pair of cooperable embossing rolls each having a series of ribs and grooves extending continuously lengthwise of the rolls, the ribs being spaced apart circumferentially by the said grooves disposed about the roll periphery, the ribs of one roll each having a plurality of surface land areas also extending longitudinally on the ribs and projections of these ribs extending above the land areas and separated longitudinally by the land areas and peripherally from projections of adjacent ribs by the said grooves, the ribs of the other roll having surface land areas extending longitudinally on the ribs and recesses of the ribs lying below and separated by these latter mentioned land areas for mating with the said projections, and the projections of the one said roll in the rotation of the cooperable embossing rolls being receivable in the mating recesses of the other said roll, the said recesses being shallow relative to the depth of the ribs.
Claim 3
Dependent Claim
45 words
Embossing apparatus as claimed in claim 1 in which the land areas of the ribs of the one said roll are of greater length along the ribs than the projections separated by the land areas and the projections have a height of about 0.005 inch.
Claim 4
Dependent Claim
32 words
Embossing apparatus as claimed in claim 1 in which the projections and recesses as viewed in plan are rectangular and the projection and recess at each end of a rib is triangular.
Claim 5
Dependent Claim
31 words
Embossing apparatus as claimed in claim 1 in which the projections and recesses are generally conical in shape and each lies wholly within the width of the rib which accommodates it.
Claim 6
Dependent Claim
50 words
Embossing apparatus as claimed in claim 1 in which each of the ribs of each roll have projections, recesses and land areas, the land arEas of each roll separating the projections and recesses of that roll and the projections of each roll being receivable in the recesses of the other.
References Cited (Backward Citations)
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US3150416A
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US3294389A
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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) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |