US4128684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a packing and a packing layer made thereby
Assignee: Sulzer AG
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Filing: 1976-11-05
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Granted: 1978-12-05
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Expires: 1996-11-05
Abstract
Abstract The layers for the packing are each woven of thin multi-filament yarns and thicker plastic monofilament yarns with the thicker plastic yarns being heat treated into a deformed state to impart a corrugated shape to each layer. The monofilament yarns impart rigidity to the layers while the multi-filament yarns provide wetting characteristics. The layers may also be of knitted construction.
Inventors
- 👤 Pietro Bomio
- 👤 Werner Meier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:47
CPC Classifications
F; F28; F28F; F28F25/00; F28F25/02; F28F25/08; F28F25/087; B; B01; B01J; B01J19/00; B01J19/32; F16; F16L; F16L59/00; F16L59/04; B01J2219/00; B01J2219/32; B01J2219/322; B01J2219/32203; B01J2219/32206; B01J2219/3221; B01J2219/32213; B01J2219/32217; B01J2219/32224; B01J2219/32227; B01J2219/324; B01J2219/32425; B01J2219/32483; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24636; Y10T428/24669; Y10T428/24694
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
74 words
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.
Claim 2
Dependent Claim
74 words
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.
Claim 3
Dependent Claim
18 words
A packing as set forth in claim 1 wherein said structure is a woven structure of said yarns.
Claim 4
Dependent Claim
42 words
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.
Claim 5
Dependent Claim
21 words
A packing as set forth in claim 3 wherein said multifilament yarns and said monofilament yarns are woven in different proportions.
Claim 6
Dependent Claim
24 words
A packing as set forth in claim 2 which consists solely of monofilaments in one direction and solely of multifilaments in a transverse direction.
Claim 7
Dependent Claim
18 words
A packing as set forth in claim 2 wherein said yarns are made of the same plastic material.
Claim 8
Dependent Claim
27 words
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.
Claim 9
Dependent Claim
24 words
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.
Claim 10
Dependent Claim
45 words
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.
Claim 11
Dependent Claim
45 words
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.
Claim 12
Dependent Claim
78 words
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.
Claim 13
Dependent Claim
78 words
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.
Claim 14
Independent Claim
80 words
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.
Claim 15
Independent Claim
80 words
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.
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) | 1981-12-04 | 1982-06-05 | 1982-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-04 | 1986-06-05 | 1986-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-04 | 1990-06-05 | 1990-12-05 | $7700.00 | Window Closed / Lapsed |