Patent US4416392A successfully refreshed from Google Patents.
US4416392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispenser for adhesive coated sheet material
Assignee: 3M Innovative Properties Co
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Filing: 1981-02-19
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Granted: 1983-11-22
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Expires: 2001-02-19
Abstract
Abstract A dispensing device for use in dispensing sheets of material coated along one edge with a narrow band of readily releasable pressure-sensitive adhesive. The dispenser comprises a container having a pair of sidewalls connected by a top wall which is formed with a transversely extending rectangular opening extending in the direction parallel to the side walls. The sheets are stacked within the dispenser such that upon removing the uppermost sheet in the stack the adhesive coating along one edge of the sheet adhered to the edge of the next sheet in the stack will cause the next sheet in the stack to be withdrawn at that free edge through the dispensing opening upon withdrawal of the uppermost sheet.
Inventors
- 👤 Daniel D. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:46
CPC Classifications
B; B42; B42D; B42D5/00; B42D5/003; B42D5/005; A; A47; A47K; A47K10/00; A47K10/24; A47K10/32; A47K10/42; A47K10/421; A47K10/422; A47K2010/428
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
193 words
A dispenser comprising flexible sheet material stacked with each sheet adhered adhesively by a narrow band of readily releasable repositionable adhesive coated on the lower side along one edge thereof to the next adjacent sheet along alternately opposite edges of successive sheets, said stacked material being placed in a container comprising side walls joined by a top wall which top wall is divided to define two symmetrical portions by a dispensing opening extending transversely of the top wall in a direction parallel to said sidewalls, said opening being spaced from said sidewalls with said portions of the top wall covering the edges of said stack of adhesive coated sheets whereby, pulling an edge of one sheet, which edge is free of adhesive, will draw that sheet through the opening of the dispenser and the adhesive on the opposite edge of the sheet withdrawn will withdraw the adjacent adhesive free edge of the next successive sheet in the stack to pull said adjacent edge through the opening, then the dispensed sheet can be peeled from said next sheet in the stack leaving the free edge of the next sheet projecting through said dispensing opening.
Claim 2
Dependent Claim
193 words
A dispenser comprising flexible sheet material stacked with each sheet adhered adhesively by a narrow band of readily releasable repositionable adhesive coated on the lower side along one edge thereof to the next adjacent sheet along alternately opposite edges of successive sheets, said stacked material being placed in a container comprising side walls joined by a top wall which top wall is divided to define two symmetrical portions by a dispensing opening extending transversely of the top wall in a direction parallel to said sidewalls, said opening being spaced from said sidewalls with said portions of the top wall covering the edges of said stack of adhesive coated sheets whereby, pulling an edge of one sheet, which edge is free of adhesive, will draw that sheet through the opening of the dispenser and the adhesive on the opposite edge of the sheet withdrawn will withdraw the adjacent adhesive free edge of the next successive sheet in the stack to pull said adjacent edge through the opening, then the dispensed sheet can be peeled from said next sheet in the stack leaving the free edge of the next sheet projecting through said dispensing opening.
Claim 3
Dependent Claim
31 words
A dispenser according to claim 1 wherein said top wall has edges adjacent said opening and the wall is inclined and the two portions diverge from said edges toward said sidewalls.
Claim 4
Dependent Claim
37 words
A dispenser according to claim 1 which comprises a movable platform and biasing means for moving said platform between said sidewalls and toward said top wall for moving a said stack of sheets toward said top wall.
Claim 5
Dependent Claim
35 words
A dispenser according to claim 1 wherein said sidewalls are short and of a width to provide a shallow container for said stack of sheets and a fixed bottom wall supports said stack of sheets.
Claim 6
Dependent Claim
73 words
A dispensed according to claim 1 including a base having a top surface and bottom, means for weighting said base, said base having a recess in said top surface, a spring positioned in said recess, a platform supported on said spring and biased by said spring away from said top surface, means securing said sidewalls to said base with said platform positioned therebetween to urge said stack of sheets toward said top wall.
Claim 7
Dependent Claim
42 words
A dispenser according to claim 5 wherein said top wall has edges forming said opening and the wall is inclined and the two portions diverge from said edges toward said sidewalls to allow said free edges of the sheets to be grasped.
Claim 8
Dependent Claim
19 words
A dispenser according to any preceding claim wherein said adhesive is an acrylate copolymer microsphere structured pressure sensitive adhesive.
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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) | 1986-11-21 | 1987-05-23 | 1987-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-21 | 1991-05-23 | 1991-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-21 | 1995-05-23 | 1995-11-22 | $7700.00 | Window Closed / Lapsed |