US4959265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-sensitive adhesive tape fastener for releasably attaching an object to a fabric
Assignee: 3M Co
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Filing: 1989-04-17
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Granted: 1990-09-25
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Expires: 2009-04-17
Abstract
Abstract An article can be releasably attached to a fabric or other foraminous substrate by means of a pressure-sensitive adhesive tape fastener, the backing of which has an array of bluntly pointed stems protruding beyond the pressure-sensitive adhesive. The back face of the fastener can have an adhesive layer by which it can be adhered to a sanitary napkin, and the napkin can be releasably attached to an undergarment by allowing the stems to penetrate into openings in the fabric of the undergarment until the pressure-sensitive adhesive becomes releasably bonded to the fabric. The fastener can be more supple and less obtrusive than are "Velcro" fasteners and can be produced at significantly lower cost.
Inventors
- 👤 Leigh E. Wood
- 👤 Allen L. Noreen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:41
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/56; A61F13/58; A61F13/581; A44; A44B; A44B18/00; A44B18/0069; A44B18/008; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24008; Y10T428/24017; Y10T428/24174; Y10T428/24182; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24339; Y10T428/28
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
93 words
Pressure-sensitive adhesive tape fastener comprising (a) a backing having an array of upstanding stems distributed across at least one face, having bases adjacent said at least one face and projecting outwardly from said face to a tip adapted to penetrate a foraminous substrate and wherein the height of the stem is the distance between the base and the outermost point on said tip, and (b) a pressure-sensitive adhesive layer on said face partially filling the spaces between the stems where the average adhesive depth is less than the average height of the stems.
Claim 2
Dependent Claim
93 words
Pressure-sensitive adhesive tape fastener comprising (a) a backing having an array of upstanding stems distributed across at least one face, having bases adjacent said at least one face and projecting outwardly from said face to a tip adapted to penetrate a foraminous substrate and wherein the height of the stem is the distance between the base and the outermost point on said tip, and (b) a pressure-sensitive adhesive layer on said face partially filling the spaces between the stems where the average adhesive depth is less than the average height of the stems.
Claim 3
Dependent Claim
20 words
Pressure-sensitive adhesive tape fastener as defined in claim 1 wherein the backing and stems are formed of a thermoplastic resin.
Claim 4
Dependent Claim
19 words
Pressure-sensitive adhesive tape fastener as defined in claim 1 wherein each of the stems has a blunt pointed tip.
Claim 5
Dependent Claim
19 words
Pressure-sensitive adhesive tape fastener as defined in claim 3 wherein each of the stems is substantially conical or pyramidal.
Claim 6
Dependent Claim
17 words
Pressure-sensitive adhesive tape fastener as defined in claim 3 wherein each of the stems is substantially cylindrical.
Claim 7
Dependent Claim
33 words
Pressure-sensitive adhesive tape fastener as defined in claim 1 wherein each of the stems is less than 2 mm in breadth at the average plane of the surface of the pressure-sensitive adhesive layer.
Claim 8
Dependent Claim
39 words
Pressure-sensitive adhesive tape fastener as defined in claim 1 wherein the area of the surface of said pressure-sensitive adhesive exceeds the area occupied by the cross sections of the stems in the average plane of the adhesive layer surface.
Claim 9
Dependent Claim
36 words
Pressure-sensitive adhesive tape fastener as defined in claim 7 wherein the area of the surface of said adhesive layer is from 3 to 30 times that of the cross sections of the stems in said plane.
Claim 10
Dependent Claim
16 words
Pressure-sensitive adhesive tape fastener as defined in claim 1 wherein the backing comprises a thermoplastic film.
Claim 11
Dependent Claim
24 words
Pressure-sensitive adhesive tape fastener as defined in claim 1 wherein the average depth of said pressure-sensitive adhesive layer is from 25 to 250 μm.
Claim 12
Dependent Claim
17 words
Pressure-sensitive adhesive tape fastener as defined in claim 10 wherein the stems are of substantially uniform height.
Claim 13
Dependent Claim
36 words
Pressure-sensitive adhesive tape fastener as defined in claim 11 wherein the stems protrude from 20 to 200 μm beyond the average plane of the surface of the pressure-sensitive adhesive layer for attachment to closely woven fabrics.
Claim 14
Dependent Claim
35 words
Pressure-sensitive adhesive tape fastener as defined in claim 11 wherein the stems protrude from 0.5 to 3.0 mm beyond the average plane of the surface of the pressure-sensitive adhesive layer for attachment to coarse materials.
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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) | 1993-09-24 | 1994-03-26 | 1994-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-24 | 1998-03-26 | 1998-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-24 | 2002-03-26 | 2002-09-25 | $7700.00 | Window Closed / Lapsed |