US4522853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic diaper-pants fastening
Assignee: Beiersdorf AG
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Filing: 1983-04-21
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Granted: 1985-06-11
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Expires: 2003-04-21
Abstract
Abstract The invention relates to a self-adhesive elastic diaper-pants fastening with an intermediate elastic piece and non-elastic adhesion ends. The fastening is so effected that the adhesion ends will not stretch and will adhere to the material out of which the pants are made tightly enough that the tensions produced by the wearer's movements will not cause them to become loose of their own accord.
Inventors
- 👤 Bodo Szonn
- 👤 Karl Schafer
- 👤 Alfred Malskeit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:16
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/56; A61F13/58; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/24; Y10T428/24008
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
166 words
Self-adhesive elastic diaper-pants fastening with an adhesive-free intermediate elastic piece and non-elastic adhesion ends, characterized by (a) adhesion ends (1) with an intermediate elastic piece (2), (b) a base (1a), on which is mounted a pressure-sensitive adhesive (1b), in the vicinity of each adhesion end (1), (c) a strip that is free of pressure-sensitive adhesive and functions as a grip (1c) and (5) at the edge of one of the two bases (1a ), (d) a reinforcing strip (6) consisting of a base (6a) and a pressure-sensitive adhesive (6b), (e) an adhesive-resistant layer (3b) that is mounted either directly on the reinforcing strip (6) or by means of a transition strip (3) that consists of a base (3a) and pressure-sensitive adhesive (3c), (f) the adhesive-resistant layer (3b ) extending 2-5 mm on each side of the pressure-sensitive adhesive (1b) in the vicinity of the adhesion end (1) next to the grip (5), and (g) a cover (4) that extends over the whole width of the fastening.
Claim 2
Dependent Claim
166 words
Self-adhesive elastic diaper-pants fastening with an adhesive-free intermediate elastic piece and non-elastic adhesion ends, characterized by (a) adhesion ends (1) with an intermediate elastic piece (2), (b) a base (1a), on which is mounted a pressure-sensitive adhesive (1b), in the vicinity of each adhesion end (1), (c) a strip that is free of pressure-sensitive adhesive and functions as a grip (1c) and (5) at the edge of one of the two bases (1a ), (d) a reinforcing strip (6) consisting of a base (6a) and a pressure-sensitive adhesive (6b), (e) an adhesive-resistant layer (3b) that is mounted either directly on the reinforcing strip (6) or by means of a transition strip (3) that consists of a base (3a) and pressure-sensitive adhesive (3c), (f) the adhesive-resistant layer (3b ) extending 2-5 mm on each side of the pressure-sensitive adhesive (1b) in the vicinity of the adhesion end (1) next to the grip (5), and (g) a cover (4) that extends over the whole width of the fastening.
Claim 3
Dependent Claim
43 words
Fastening as in claim 1, characterized in that the intermediate piece (2) consists of an elastic polyurethane film mixed with polymers, of a film of block co-polymers based on butadiene and styrene, of an elastic double-rib fabric, or of an elastic natural-rubber film.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |