US3578155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable product
Assignee: Paper Converting Machine Co
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Filing: 1969-02-24
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Granted: 1971-05-11
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Expires: 1989-02-24
Abstract
Abstract A disposable product such as a diaper characterized by having a generally trapezoidal configuration and made up of outer sheets confining a generally rectangular fluff pad, the product sheets being united to confine the pad and perforated along generally straight lines to define detachable products.
Inventors
- 👤 Rudolph E Small
- 👤 John J Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:13
CPC Classifications
A; A61; A61F; A61F15/00; A61F15/001; A61F13/00; A61F13/15; A61F13/15577; A61F13/15617; A61F13/15634; Y; Y10; Y10S; Y10S206/00; Y10S206/82; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/1011
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
205 words
A disposable product comprising first and second elongated sheets, one of said sheets being substantially liquid impermeable, a plurality of elongated generally rectangular fluff pads having opposing right and left short sides disposed in spaced relation along the length of said sheets with the longitudinal dimension of each fluff pad extending transversely to the length of said sheets, said sheets being joined along the side edges thereof and between adjacent pads, a first set of spaced-apart generally parallel lines of perforation, each perforation line of said first set extending between opposite side edges of said joined sheets from adjacent the left short side of a pad to adjacent the right short side of the next pad, each perforation line of said first set being separated by a pair of intervening fluff pads, a second set of spaced-apart generally parallel lines of perforation, a perforation line of said second set extending between opposite side edges of said joined sheets between the fluff pads of each of said intervening pairs from adjacent the right short side of a pad to adjacent the left short side of the next pad whereby said sheets may be separated along adjacent lines of perforation to provide a generally trapezoidalshaped diaper unit.
Claim 2
Dependent Claim
205 words
A disposable product comprising first and second elongated sheets, one of said sheets being substantially liquid impermeable, a plurality of elongated generally rectangular fluff pads having opposing right and left short sides disposed in spaced relation along the length of said sheets with the longitudinal dimension of each fluff pad extending transversely to the length of said sheets, said sheets being joined along the side edges thereof and between adjacent pads, a first set of spaced-apart generally parallel lines of perforation, each perforation line of said first set extending between opposite side edges of said joined sheets from adjacent the left short side of a pad to adjacent the right short side of the next pad, each perforation line of said first set being separated by a pair of intervening fluff pads, a second set of spaced-apart generally parallel lines of perforation, a perforation line of said second set extending between opposite side edges of said joined sheets between the fluff pads of each of said intervening pairs from adjacent the right short side of a pad to adjacent the left short side of the next pad whereby said sheets may be separated along adjacent lines of perforation to provide a generally trapezoidalshaped diaper unit.
Claim 3
Dependent Claim
43 words
The product of claim 1 in which said first sheet is wider than said second sheet whereby said first sheet is foldable on itself along the longitudinal edges thereof, the folded portions of said first sheet being adhesively united to said second sheet.
Claim 4
Dependent Claim
90 words
A process for forming a disposable diaper comprising advancing spaced-apart generally rectangular fluff pads sequentially along a predetermined path, applying first and second webs to a plurality of said pads to sandwich the same, one of said sheets having adhesive areas thereon for engagement with the other of said sheets, and perforating said sheets along lines at an angle to said path with the lines extending from one rear corner of a given pad to the opposite front corner of the succeeding pad whereby generally trapezoidal-shaped diaper units are provided.
Claim 5
Dependent Claim
90 words
A process for forming a disposable diaper comprising advancing spaced-apart generally rectangular fluff pads sequentially along a predetermined path, applying first and second webs to a plurality of said pads to sandwich the same, one of said sheets having adhesive areas thereon for engagement with the other of said sheets, and perforating said sheets along lines at an angle to said path with the lines extending from one rear corner of a given pad to the opposite front corner of the succeeding pad whereby generally trapezoidal-shaped diaper units are provided.
Claim 6
Dependent Claim
38 words
The process of claim 3 including the steps of applying a pressure-sensitive adhesive to spaced-apart areas on the outside of one of said sheets and thereafter applying a release tape over each of said pressure sensitive adhesive areas.
References Cited (Backward Citations)
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US3192927A
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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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |