US4598441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the manufacture of absorption pads for absorbing body fluid
Assignee: Winkler and Dunnebier Maschinenfabrik und Eisengiesserei & Co Kg GmbH
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Filing: 1985-03-15
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Granted: 1986-07-08
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Expires: 2005-03-15
Abstract
Abstract There is provided an apparatus for the manufacture of absorption pads for sorbing body fluid which is composed of two substantially identical so-called flake applicators each including a vacuum cylinder having shaped recesses which are so-called flake wheels. A first component layer of the absorption pad is produced on the first flake wheel and a second component layer is produced on the second flake wheel. The component layers produced on the first flake wheel are applied to the component layers produced on the second flake wheel by means of a transfer roll. A second transfer roll lifts the finished absorption pad from the second flake wheel and delivers the absorption pad by means of a vacuum belt to a machine for further processing.
Inventors
- 👤 Kurt Stemmler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:58
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/15577; A61F13/15617; A61F13/15626
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
132 words
Apparatus for the manufacture of absorption pads for absorbing body fluid, in particular for manufacturing absorption pads for sanitary napkins or the like shaped to fit the human body, said apparatus comprising: a first flake wheel having shaped recesses for producing a first component layer of the absorption pad; a second flake wheel having shaped recesses for producing a second component layer of the absorption pad; a first transfer roll arranged between said first and second flake wheels for lifting off the component layer produced on the first flake wheel and depositing said component layer on the second component layer disposed in the shaped recesses of the second flake wheel; and a second transfer roll for removing from said second flake wheel the finished absorption pad consisting of said two component layers.
Claim 2
Dependent Claim
132 words
Apparatus for the manufacture of absorption pads for absorbing body fluid, in particular for manufacturing absorption pads for sanitary napkins or the like shaped to fit the human body, said apparatus comprising: a first flake wheel having shaped recesses for producing a first component layer of the absorption pad; a second flake wheel having shaped recesses for producing a second component layer of the absorption pad; a first transfer roll arranged between said first and second flake wheels for lifting off the component layer produced on the first flake wheel and depositing said component layer on the second component layer disposed in the shaped recesses of the second flake wheel; and a second transfer roll for removing from said second flake wheel the finished absorption pad consisting of said two component layers.
Claim 3
Dependent Claim
23 words
The apparatus as defined in claim 1, wherein said shaped recesses of said first and second flake wheels are designed as exchangeable units.
Claim 4
Dependent Claim
33 words
The apparatus as defined in claim 1, wherein vacuum boxes are arranged in said first and second flake wheels, said vacuum boxes being divided into component sections of different vacuum and air throughput.
Claim 5
Dependent Claim
48 words
The apparatus as defined in claim 1, which further includes means acting on the component layer produced on said first flake wheel for the application of an intermediate layer, in particular for applying a superabsorbent medium, said means being arranged within the zone of said first transfer roll.
Claim 6
Dependent Claim
18 words
The apparatus as defined in claim 4, wherein said intermediate applicator means is comprised of a spreading device.
Claim 7
Dependent Claim
20 words
The apparatus as defined in claim 4, wherein said intermediate applicator means is comprised of a device for inserting sheets.
References Cited (Backward Citations)
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US3628534A
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US3952124A
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US3943605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-07 | 1990-01-06 | 1990-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-07 | 1994-01-06 | 1994-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-07 | 1998-01-06 | 1998-07-08 | $7700.00 | Window Closed / Lapsed |