US3779047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the treatment of permeable textile materials
Assignee: Vepa AG
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Filing: 1972-10-27
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Granted: 1973-12-18
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Expires: 1992-10-27
Abstract
Abstract An apparatus for treating fluid-permeable materials which includes a treatment chamber adapted to contain a gaseous or liquid treatment medium, inlet means for introducing the material to be treated to the treatment chamber, at least one perforated roller-like conveying means rotatably disposed within said treatment chamber, the conveying surface of said roller-like conveying means being provided by an outer perforated jacket means, an inner perforated jacket means spaced closely adjacent to the outer jacket means, the inner and outer jacket means cooperating to allow treatment of material of substantially differing widths without appreciably affecting the rate of flow of the treatment medium across the conveying surface, means for rotating the conveying means, means for circulating the treatment medium from the outside to the inside of the conveying means, thereby penetrating the material being conveyed thereon, and outlet means for removing the material from the treatment chamber.
Inventors
- 👤 H Fleissner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:18
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/10; D06B3/20; D06B3/201; D06B3/203; Y; Y10; Y10S; Y10S68/00; Y10S68/903
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
308 words
An apparatus for treating lengths of fluid permeable materials which comprises a treatment Chamber adapted to contain a fluid treatment medium, at least one sieve drum means rotatably disposed within said treatment chamber, said sieve drum means having an inner and an outer perforated jacket means, said outer jacket means providing a perforated conveying surface for the material to be treated and said inner perforated jacket means being spaced inwardly from and closely adjacent to said outer jacket means, inlet means for introducing the material to be treated to the treatment chamber so that at least a portion of the width and the periphery of the conveying surface is covered by said material, means for rotating said sieve drum means, at least one means for circulating the fluid treatment medium from the outside to the inside of said sieve drum means, thereby penetrating the material being conveyed thereon, and outlet means for removing the material from the treatment chamber; said inner perforated jacket means providing a greater resistance to the flow of the fluid treatment medium therethrough than the resistance provided by the outer perforated jacket means and said inner perforated jacket means providing a resistance to the flow of the fluid treatment medium which causes a substantially smaller pressure drop than the pressure drop caused at the portion of the outer perforated jacket means which is covered by said material whereby the inner perforated jacket means prevents the amount of fluid treatment medium which flows through the uncovered portion of the conveying surface of the sieve drum means from being substantially higher than the amount of fluid treatment medium which penetrates through said material and whereby lengths of material of substantially differing widths may be treated on said sieve drum means with an essentially unchanged rate of flow of said fluid treatment medium across said conveying surface.
Claim 2
Independent Claim
308 words
An apparatus for treating lengths of fluid permeable materials which comprises a treatment Chamber adapted to contain a fluid treatment medium, at least one sieve drum means rotatably disposed within said treatment chamber, said sieve drum means having an inner and an outer perforated jacket means, said outer jacket means providing a perforated conveying surface for the material to be treated and said inner perforated jacket means being spaced inwardly from and closely adjacent to said outer jacket means, inlet means for introducing the material to be treated to the treatment chamber so that at least a portion of the width and the periphery of the conveying surface is covered by said material, means for rotating said sieve drum means, at least one means for circulating the fluid treatment medium from the outside to the inside of said sieve drum means, thereby penetrating the material being conveyed thereon, and outlet means for removing the material from the treatment chamber; said inner perforated jacket means providing a greater resistance to the flow of the fluid treatment medium therethrough than the resistance provided by the outer perforated jacket means and said inner perforated jacket means providing a resistance to the flow of the fluid treatment medium which causes a substantially smaller pressure drop than the pressure drop caused at the portion of the outer perforated jacket means which is covered by said material whereby the inner perforated jacket means prevents the amount of fluid treatment medium which flows through the uncovered portion of the conveying surface of the sieve drum means from being substantially higher than the amount of fluid treatment medium which penetrates through said material and whereby lengths of material of substantially differing widths may be treated on said sieve drum means with an essentially unchanged rate of flow of said fluid treatment medium across said conveying surface.
Claim 3
Dependent Claim
48 words
The apparatus of claim 1, wherein the treatment chamber is a liquor container adapted to contain a treatment liquor and the sieve drum means is at least partially disposed in said liquor container whereby a liquor level is provided in the container and in the sieve drum means.
Claim 4
Dependent Claim
45 words
The apparatus of claim 2, wherein the liquor level in the container outside the sieve drum means is substantially higher than the liquor level inside the sieve drum means, the penetration of the material by the treatment liquor being effected by this liquor level difference.
Claim 5
Dependent Claim
33 words
The apparatus of claim 2, wherein roller means are operatively associated with the sieve drum means to ensure contact of the material with a substantial portion of the periphery of the conveying surface.
Claim 6
Dependent Claim
19 words
The apparatus of claim 4, wherein a device for dehydrating the material is disposed behind the outlet roller means.
Claim 7
Dependent Claim
12 words
The apparatus of claim 5, wherein the device is a squeezing unit.
Claim 8
Dependent Claim
71 words
The apparatus of claim 6, wherein a lateral collecting vessel is disposed at one end of the liquor container, said collecting vessel communicating with the interior of the sieve drum means and said means for circulating said fluid treatment medium including a pump means within said collecting vessel for circulating the treatment liquor from within the sieve drum means to that section of the container outside of the sieve drum means.
Claim 9
Dependent Claim
20 words
The apparatus of claim 2, wherein a perforated plate means is arranged within the liquor container below the conveying means.
Claim 10
Dependent Claim
38 words
The apparatus of claim 1, wherein the space between the outer jacket means and the inner jacket means is subdivided into annular sections by ring-shaped straps which are arranged substantially parallel to ends of the sieve drum means.
Claim 11
Dependent Claim
28 words
The apparatus of claim 1, wherein the treatment chamber is a heat-insulated housing which is subdivided by a partition means into a treatment chamber and a fan chamber.
Claim 12
Dependent Claim
30 words
The apparatus of claim 10, wherein the treatment medium is a gaseous medium and the means for circulating the treatment medium is a fan means disposed in the fan chamber.
Claim 13
Dependent Claim
18 words
The apparatus of claim 10, wherein heating meanS are disposed in the circulation zone of the treatment medium.
Claim 14
Dependent Claim
17 words
The apparatus of claim 12, wherein the heating means are disposed above and below the fan means.
Claim 15
Dependent Claim
35 words
The apparatus of claim 13, wherein baffle means are disposed within the sieve drum means at that portion of the periphery of said sieve drum means which is not covered with the material being treated.
Claim 16
Dependent Claim
39 words
The apparatus of claim 10, wherein space between the inner jacket means and the outer jacket means is subdivided by ring-shaped straps into a plurality of annular sections, said straps being arranged in the direction of the drum axis.
Claim 17
Dependent Claim
14 words
The apparatus of claim 15, wherein the inlet and outlet means are conveyor belts.
Claim 18
Dependent Claim
23 words
The apparatus of claim 1, wherein the free section of the inner jacket means is smaller than that of the outer jacket means.
Claim 19
Dependent Claim
24 words
The apparatus of claim 17, wherein the perforations formed in the inner jacket means are larger than the perforations in the outer jacket means.
Claim 20
Dependent Claim
21 words
The apparatus of claim 1, wherein the perforations formed in the two jacket means are staggered with respect to each other.
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |