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US3751224A
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Method and apparatus for a continuous fluid treatment of fibrous materials
Assignee: Airbus Defence and Space GmbH
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Filing: 1971-12-20
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Granted: 1973-08-07
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Expires: 1991-12-20
Abstract
Abstract In treating fibrous materials with a fluid medium, such as for cleaning or impregnating the fibers, the material is moved along a path of travel through a chamber in which the fluid medium flows under pressure in a vortical pattern. Due to the vortical flow, the fluid medium flows in counterflow relationship to the fibrous material for at least a part of its path of travel through the chamber. Further, at the same time it passes in counterflow relationship, the fluid medium also flows transversely into the fibrous material. The chamber can be defined laterally by two pairs of vertically extending rotating rolls. The rolls in one pair are spaced apart and form an inlet gap through which the fibrous material passes into the chamber, while at least one of the rolls in the other pair has a circumferentially extending groove through which the material exits from the chamber. The rolls in each pair rotate in opposite directions to one another in developing the vortical flow of the fluid medium.
Inventors
- 👤 P Wackerle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:59
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/04
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
28 words
Method, as set forth in claim 1, characterized therein by conducting the fibrous material through the treatment chamber in a contact-free manner from the surfaces defining the chamber.
Claim 2
Dependent Claim
43 words
Method, as set forth in claim 1, characterized therein by initially directing the flow of the liquid medium in parallel flow relationship with and in the same direction as the path of travel of the fibrous material prior to effecting the counterflow relationship.
Claim 3
Dependent Claim
39 words
Method, as set forth in claim 1, characterized therein by providing the counterflow and simultaneous transverse flow by imparting a vortical flow to the fluid medium and directing the fibrous material through the boundary region of the vortical flow.
Claim 4
Dependent Claim
78 words
Method, as set forth in claim 4, characterized therein by providing two vortical flows of the fluid medium with the core axes of the two vortical flows disposed in laterally spaced parallel relationship to each other and with the axes disposed transversely of the path of travel of the fibrous material, and arranging the two vortical flows relative to the fibrous material so that the fibrous material passes through the adjacent boundary regions of the two vortical flows.
Claim 5
Dependent Claim
42 words
Method, as set forth iN claim 5, characterized therein by rotating the vortical flows in opposite directions about their core axes so that the boundary surfaces thereof contacting the fibrous material flow countercurrent to the path of travel of the fibrous material.
Claim 6
Dependent Claim
35 words
Method, as set forth in claim 4, characterized therein by providing a solid surface bounding the vortical flow and directing the fibrous material between the solid surface and the boundary region of the vortical flow.
Claim 7
Dependent Claim
30 words
Method, as set forth in claim 4, characterized therein by inducing the vortical flow by supplying a flow of the fluid medium so that the flow induces the vortical action.
Claim 8
Dependent Claim
31 words
Method, as set forth in claim 8, characterized therein by inducing the vortical flow by directing a pressurized flow of the fluid medium tangentially to the boundary of the vortical flow.
Claim 9
Dependent Claim
30 words
Method, as set forth in claim 4, characterized therein by inducing the vortical flow by directing flow of the fluid medium over surfaces defining the boundaries of the vortical flow.
Claim 10
Dependent Claim
27 words
Method, as set forth in claim 4, characterized therein by inducing the vortical flow by rotating the surfaces of the treatment chamber which bound the vortical flow.
Claim 11
Dependent Claim
14 words
Method, as set forth in claim 1, characterized therein by employing filamentary fibrous materials.
Claim 12
Dependent Claim
14 words
Method, as set forth in claim 12, characterized therein by utilizing carbon-containing fibrous materials.
Claim 13
Dependent Claim
20 words
Method, as set forth in claim 1, characterized therein by effecting impregnation of the fibrous materials within the treatment chamber.
Claim 14
Dependent Claim
22 words
Method, as set forth in claim 1, characterized therein by effecting a cleaning action of the fibrous materials within the treatment chamber.
Claim 15
Dependent Claim
71 words
Apparatus for continuously treating fibrous materials with a fluid medium,comprising means forming a chamber containing the fluid medium, said means including at least one axially extending rotatable member for imparting a vortical flow to the fluid medium within said chamber, and said means providing an inlet gap for introducing the fibrous material into said chamber for passage along a path of travel extending transversely of the axis of said rotatable member.
Claim 16
Dependent Claim
106 words
Apparatus, as set forth in claim 16, wherein said means forming said chamber comprises a first pair and a second pair of vertically arranged rolls with the rolls in each said pair being disposed laterally relative to one another, the axes of said first and second pairs disposed in parallel relationship, said second pair of rolls spaced in the downstream direction of the path of travel of the fibrous material from said first pair of rolls, and in said first and said second pairs of rolls each said roller is arranged to rotate in the opposite direction relative to the other said roll in said pair.
Claim 17
Dependent Claim
32 words
Apparatus, as set forth in claim 17, wherein said rolls in said first pair of rolls being spaced apart at their adjacent circumferential peripheries for forming an inlet gap into said chamber.
Claim 18
Dependent Claim
30 words
Apparatus, as set forth in claim 17, wherein said means further comprises horizontal wall members extending transversely of said first and second pairs of rolls at the opposite ends thereof.
Claim 19
Dependent Claim
51 words
Apparatus, as set forth in claim 17, wherein at least one of said rolls of said second pair of rolls has a circumferentially extending groove formed radially inwardly into its circumferential peripheral surface for forming a passage between said second pair of rolls for the fibrous material exiting from said chamber.
Claim 20
Dependent Claim
37 words
Apparatus, as set forth in claim 17, wherein a degasification tank is positioned downstream from said second pair of rolls and is located in the path of travel of the fibrous material after it leaves said chamber.
Claim 21
Dependent Claim
30 words
Apparatus, as set forth in claim 17, wherein a drawing nozzle is positioned downstream relative to the path of travel of the fibrous material from said second pair of rolls.
Claim 22
Dependent Claim
30 words
Apparatus, as set forth in claim 21, wherein said second pair of rolls form the inlet side of said degasificatiOn chamber and are in sealing contact with said degasification chamber.
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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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |