# US 7,611,765 B2 · Stack of interfolded absorbent sheet products > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,611,765 B2 - Document ID: US7611765B2 - Status: Granted - Kind: B2 - Application number: 12/055,334 - Filed: 2008-03-26 - Published: 2009-01-22 - Granted: 2009-11-03 - Earliest claimed: 2003-09-12 - Assignees: SCA Tissue North America LLC - Inventors: Robert C. Hochtritt; Andrew M. Conger - Web page: https://patentgrep.com/patent/US7611765B2 ## CPC - A47K 10/42: dispensing from a store of single sheets, e.g. stacked - A47G 11/001: {Table napkins} - A47K 10/16: Paper towels; Toilet paper; Holders therefor - A47K 10/424: {dispensing from the bottom part of the dispenser (A47K10/44 takes precedence)} - B32B 3/04: characterised by {at least one} layer folded at the edge, e.g. over another layer {; characterised by at least one layer enveloping or enclosing a material} - B65D 83/0894: {the articles being positioned relative to one another or to the container in a special way, e.g. for facilitating dispensing, without additional support} - B65H 45/24: Interfolding sheets, e.g. cigarette or toilet papers - A47K 2010/428: {Details of the folds or interfolds of the sheets} - Y10T 428/24223: Embedded in body of web - Y10T 428/24231: At opposed marginal edges - Y10T 428/24264: Particular fold structure [e.g., beveled, etc.] - A47K: SANITARY EQUIPMENT; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES - A47G: HOUSEHOLD OR TABLE EQUIPMENT (book-ends A47B5/00; knives B26B) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES - B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A stack of interfolded absorbent sheet products comprises a plurality of absorbent sheets each of which is itself folded at least twice about axes that are perpendicular to one another. The absorbent sheets have an embossed surface relief of a predetermined pattern or design. Each of the absorbent sheets within the stack comprises at least one pair of panels sandwiched between a pair of adjacent panels of another of the absorbent sheets in the stack. ## Claims ### Claim 1 A stack of interfolded absorbent sheet products, comprising a plurality of absorbent sheets each of which is itself folded at least twice about axes that are perpendicular to one another, the absorbent sheets moreover comprising an embossed surface relief of a predetermined pattern or design, wherein each of said absorbent sheets within said stack comprises at least one pair of panels sandwiched between a pair of adjacent panels of another of said absorbent sheets within said stack, wherein each of said absorbent sheets is a paper napkin having only two folds, the two folds each bisecting the napkin into two equal parts and being perpendicular to one another, thereby to form a napkin having four equal panels, and wherein each of said absorbent sheets is entirely detached from all other absorbent sheets within said stack. ### Claim 2 (depends on 1) The stack of interfolded absorbent sheet products according to claim 1, wherein each of said absorbent sheets is a single ply paper napkin having a basis weight of from about 10 to 20 lb. ### Claim 3 (depends on 2) The stack of interfolded absorbent sheet products according to claim 2, wherein said basis weight is from about 11 to about 17 lb. ### Claim 4 (depends on 3) The stack of interfolded absorbent sheet products according to claim 3, wherein said basis weight is from about 12 to about 15 lb. ### Claim 5 (depends on 4) The stack of interfolded absorbent sheet products according to claim 4, wherein said basis weight is about 13 lb. ### Claim 6 (depends on 1) The stack of interfolded absorbent sheet products according to claim 1, wherein each napkin within said stack receives between two inwardly facing adjacent panels a pair of adjacent panels from each of two napkins disposed respectively above and below said napkin in said stack. ### Claim 7 (depends on 1) The stack of interfolded absorbent sheet products according to claim 1, wherein said embossed surface relief is applied by embossing rollers during a converting phase of manufacturing said absorbent sheet products. ### Claim 8 (depends on 1) The stack of interfolded absorbent sheet products according to claim 1, wherein said embossed surface relief is applied by TAD formation of said absorbent sheets. ### Claim 9 (depends on 1) The stack of interfolded absorbent sheet products according to claim 1, wherein said embossed surface relief is of a continuous pattern over an entire surface of said absorbent sheets. ### Claim 10 (depends on 1) The stack of interfolded absorbent sheet products according to claim 1, wherein said embossed surface relief is applied along a peripheral region of said absorbent sheets. ### Claim 11 (depends on 1) In combination, a stack of interfolded absorbent sheet products according to claim 1 and a dispenser containing said stack, said dispenser comprising a downwardly-directed opening through which said absorbent sheets may be withdrawn one at a time. ### Claim 12 (depends on 11) The combination according to claim 11, wherein solely the weight of said stack urges said sheets toward said downwardly-directed dispensing opening. ### Claim 13 (depends on 11) The combination according to claim 11, wherein said dispenser comprises a main body portion housing said stack, said main body portion comprising at least one section oriented at an oblique angle in relation to a horizontal support surface for said dispenser. ### Claim 14 A stack of interfolded absorbent sheet products, comprising a plurality of absorbent single ply sheets having a basis weight of from about 10 to 20 lb, each of said absorbent sheets is folded about axes that are perpendicular to one another, the absorbent sheets moreover comprising an embossed surface relief of a predetermined pattern or design applied by TAD formation of said absorbent sheets, wherein each of said absorbent sheets within said stack comprises at least one pair of panels sandwiched between a pair of adjacent panels of another of said absorbent sheets within said stack, wherein each of said absorbent sheets is a paper napkin having only two folds, the two folds each bisecting the napkin into two equal parts and being perpendicular to one another, thereby to form a napkin having four equal panels, and wherein each of said absorbent sheets is entirely detached from all other absorbent sheets within said stack.