Claims
- 1. A packing comprising a plurality of shaped layers of a textile sheet-structure, at least some of said layers defining flow ducts and at least some of said layers being formed of thin non-metallic multifilament yarns and thicker monofilament plastic yarns with at least some of said thicker plastic yarns being permanently deformed to impart a self-supported shape to said layers, each of said flow ducts of said deformed layers having a constant dimension throughout.
- 2. A packing as set forth in claim 1 wherein said structure is a woven structure of said yarns.
- 3. A packing as set forth in claim 1 wherein said structure is a woven structure with said yarns forming weft and warp yarns, and wherein at least one of said weft and warp yarns consist of alternating monofilament yarns and multifilament yarns.
- 4. A packing as set forth in claim 3 wherein said multifilament yarns and said monofilament yarns are woven in different proportions.
- 5. A packing as set forth in claim 2 which consists solely of monofilaments in one direction and solely of multifilaments in a transverse direction.
- 6. A packing as set forth in claim 2 wherein said yarns are made of the same plastic material.
- 7. A packing as set forth in claim 2 wherein said multi-filament yarns are made of a plastic material different from the plastic material of said monofilament yarns.
- 8. A packing as set forth in claim 1 wherein said deformed layers have zig-zag folds extending at an angle to said thicker plastic monofilaments.
- 9. A woven textile sheet-structure formed of thin non-metallic multifilament yarns and thicker monofilament plastic yarns with at least some of said thicker plastic yarns being permanently deformed to impart a corrugated self-supported shape to said structure to define uninterrupted flow ducts of constant dimension throughout.
- 10. A packing comprising a plurality of shaped layers of a textile sheet-structure, at least some of said layers defining flow ducts and at least some of said layers being formed of thin multi-filament yarns and thicker plastic yarns with at least some of said thicker plastic yarns being permanently deformed at the softening point by heat treatment to impart a shape of said layers each of said flow ducts of said deformed layers having a constant dimension throughout.
- 11. A method of making a layer for a multi-layered packing, said method including the steps of
- forming a woven textile sheet structure of thin multifilament plastic yarns and thicker mono-filament plastic yarns, and
- thereafter permanently mechanically deforming at least the thicker monofilament plastic yarns at the softening point by heat treatment to shape the textile structure into a self-supported layer folded in zig-zag manner and defining a plurality of flow paths, each said flow path having a constant dimension throughout.
Priority Claims (1)
Number |
Date |
Country |
Kind |
9404/74 |
Jul 1974 |
CHX |
|
Parent Case Info
This is a continuaton of application Ser. No. 593,381 filed July 7, 1975 now abandoned.
US Referenced Citations (5)
Continuations (1)
|
Number |
Date |
Country |
Parent |
593381 |
Jul 1975 |
|