US3881329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treatment of flexible materials in liquid media
Assignee: Textilkombinat VEB
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Filing: 1973-06-28
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Granted: 1975-05-06
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Expires: 1993-06-28
Abstract
Abstract An apparatus for treatment of strips or sheets of flexible material in liquid media comprises a tank for holding the liquid media; inlet and outlet openings on said tank for moving the material in and out of the tank; a plurality of guide rolls disposed in said tank in staggered relationship; baffle walls disposed between opposed guide rolls and between the lateral end guide rolls and the walls of the tank; projections provided on said baffle walls, the said projections being arranged in staggered relationship as between opposed baffle walls, and the baffle walls being sufficiently closely spaced from the adjoining and opposed wall to provide a constrained pathway for the moving material.
Inventors
- 👤 Helmar Passler
- 👤 Rudolf Hanke
- 👤 Adolf Heger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:37
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/10; D06B3/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
194 words
An apparatus for treatment of strips or sheets of flexible material in liquid media, comprising a tank for holding a liquid medium; means for feeding the flexible material into and out from the tank and along a zig-zag path through the liquid medium in said tank such that successive portions of the flexible material during their path through said liquid medium extend substantially parallel to each other, said means including two vertically spaced rows of guide rolls, with the guide rolls in each row transversely spaced from each other and with the guide rolls in one row transversely spaced with respect to the guide rolls in the other row; a plurality of successive substantially parallel and transversely spaced baffle walls, successive baffle walls respectively extending from opposite sides toward the guide rolls of one and the other row between successive portions of the flexible material guided by said guide rolls; and a plurality of rod-shaped projections fixed in staggered relationship along successive baffle walls and projecting with portions thereof into the path of the material guided by said guide rolls to constrain the material to move between successive baffle walls along as undulating path.
Claim 2
Independent Claim
194 words
An apparatus for treatment of strips or sheets of flexible material in liquid media, comprising a tank for holding a liquid medium; means for feeding the flexible material into and out from the tank and along a zig-zag path through the liquid medium in said tank such that successive portions of the flexible material during their path through said liquid medium extend substantially parallel to each other, said means including two vertically spaced rows of guide rolls, with the guide rolls in each row transversely spaced from each other and with the guide rolls in one row transversely spaced with respect to the guide rolls in the other row; a plurality of successive substantially parallel and transversely spaced baffle walls, successive baffle walls respectively extending from opposite sides toward the guide rolls of one and the other row between successive portions of the flexible material guided by said guide rolls; and a plurality of rod-shaped projections fixed in staggered relationship along successive baffle walls and projecting with portions thereof into the path of the material guided by said guide rolls to constrain the material to move between successive baffle walls along as undulating path.
Claim 3
Dependent Claim
13 words
The apparatus of claim 1, wherein the projections have a round transverse cross-section.
Claim 4
Dependent Claim
31 words
The apparatus of claim 1, wherein successive baffle walls are spaced from each other by a distance about ten to twenty times the thickness of the material moving through the apparatus.
Claim 5
Dependent Claim
20 words
The apparatus of claim 1, which is adapted for use in the radiation-initiated graft copolymerization of a polymeric textile material.
Claim 6
Dependent Claim
48 words
The apparatus of claim 1, wherein said rod-shaped projections are of V-shape and have an apex and two arms, each of said projections being arranged along the respective baffle wall with said arms diverging in direction of movement of the material between successive baffle walls from said apex.
References Cited (Backward Citations)
US2779183A
Cited
US3729958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |