US4417935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of diaper manufacture
Assignee: Paper Converting Machine Co
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Filing: 1981-10-13
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Granted: 1983-11-29
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Expires: 2001-10-13
Abstract
Abstract A method of diaper manufacture whereby adhesive is applied directly to the moisture impervious web for attachment thereto of elastic ribbons to make a shirred diaper.
Inventors
- 👤 Harvey J. Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:23
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/15577; A61F13/15585; A61F13/15593; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1084; Y10T156/1089; Y10T156/1092; Y10T156/1093; Y10T156/1095
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
133 words
A method of attaching an elastic ribbon to a moisture impervious web comprising feeding an elastic ribbon to an assembly station in a uniformly stretched condition, feeding a moisture impervious web to substantially inelastic material to said assembly station, intermittently applying a foamed adhesive to said moisture impervious web just prior to said assembly station while said moisture impervious web is in contact with a cooling roll, adhering the stretched elastic ribbon to said moisture impervious web in the area occupied by said adhesive and immediately thereafter nipping said moisture impervious web and stretched elastic ribbon to puncture the air bubbles of the foam, integrating a second web and an absorbent pad means to said moisture impervious web, transversely severing the integrated webs and pad means, folding and packaging the diapers resulting therefrom.
Claim 2
Independent Claim
133 words
A method of attaching an elastic ribbon to a moisture impervious web comprising feeding an elastic ribbon to an assembly station in a uniformly stretched condition, feeding a moisture impervious web to substantially inelastic material to said assembly station, intermittently applying a foamed adhesive to said moisture impervious web just prior to said assembly station while said moisture impervious web is in contact with a cooling roll, adhering the stretched elastic ribbon to said moisture impervious web in the area occupied by said adhesive and immediately thereafter nipping said moisture impervious web and stretched elastic ribbon to puncture the air bubbles of the foam, integrating a second web and an absorbent pad means to said moisture impervious web, transversely severing the integrated webs and pad means, folding and packaging the diapers resulting therefrom.
Claim 3
Independent Claim
153 words
A method of attaching an elastic ribbon to a moisture impervious web comprising feeding a solid elastic ribbon to an assembly station in a uniformly stretched condition, feeding a moisture impervious web of substantially inelastic material to said assembly station, intermittently applying a pair of longitudinally extending beads of adhesive having quick setting, low heat properties to said moisture impervious web just prior to said assembly station under conditions promotive of maintaining said moisture impervious web below puckering temperature while maintaining said adhesive with sufficient bonding strength to adhere said ribbon securely to said moisture impervious web when said ribbon and moisture impervious web are nipped together, adhering the stretched elastic ribbon to said moisture impervious web in the area occupied by said adhesive, integrating a second web and an absorbent pad means to said moisture impervious web, transversely severing the integrated webs and pad means, folding and packaging the diapers resulting therefrom.
Claim 4
Independent Claim
153 words
A method of attaching an elastic ribbon to a moisture impervious web comprising feeding a solid elastic ribbon to an assembly station in a uniformly stretched condition, feeding a moisture impervious web of substantially inelastic material to said assembly station, intermittently applying a pair of longitudinally extending beads of adhesive having quick setting, low heat properties to said moisture impervious web just prior to said assembly station under conditions promotive of maintaining said moisture impervious web below puckering temperature while maintaining said adhesive with sufficient bonding strength to adhere said ribbon securely to said moisture impervious web when said ribbon and moisture impervious web are nipped together, adhering the stretched elastic ribbon to said moisture impervious web in the area occupied by said adhesive, integrating a second web and an absorbent pad means to said moisture impervious web, transversely severing the integrated webs and pad means, folding and packaging the diapers resulting therefrom.
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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) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |