US4313998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile element and woven material intended in particular to serve as substrate for a catalytic material, for instance a combustion catalytic material
Assignee: Application des Gaz SA
•
Filing: 1979-10-03
•
Granted: 1982-02-02
•
Expires: 1999-10-03
Abstract
Abstract The invention relates to a new complex filiform textile element comprising fibers of an inorganic material. The element in accordance with the invention is characterized by the fact that the fibers are contained on the outside by an enveloping but open structure of metal, the total area of the openings (So) being greater than the total area of the enveloping structure (Se) covering the apparent peripheral surface of all the entire fibers.
Inventors
- 👤 Jean-Claude Pivot
- 👤 Jean Aucagne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:14
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/12; F23D14/18; B; B01; B01J; B01J35/00; B01J35/50; B01J35/58; D; D02; D02G; D02G3/00; D02G3/02; D02G3/12; D02G3/16; D02G3/22; D02G3/38; D02G3/385; D02G3/44; D03; D03D; D03D13/00; D03D13/006; D03D25/00; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249922; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2925; Y10T428/2933; Y10T428/2936; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/105; Y10T442/30; Y10T442/3065; Y10T442/313
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
105 words
A catalyst assembly, comprising a substrate for the support of a catalytically active substance, said substrate comprising at least one complex filiform textile element comprised of fibers of an inorganic material wherein said fibers of an inorganic material extend in substantially the same direction as the complex filiform textile element, said fibers of the textile element being contained on the outside by an enveloping but open structure of metal, the total area of the openings of said open structure (So) being greater than the total area of the enveloping surface (Se) of said open structure covering the apparent peripheral surface of all of the fibers.
Claim 2
Dependent Claim
105 words
A catalyst assembly, comprising a substrate for the support of a catalytically active substance, said substrate comprising at least one complex filiform textile element comprised of fibers of an inorganic material wherein said fibers of an inorganic material extend in substantially the same direction as the complex filiform textile element, said fibers of the textile element being contained on the outside by an enveloping but open structure of metal, the total area of the openings of said open structure (So) being greater than the total area of the enveloping surface (Se) of said open structure covering the apparent peripheral surface of all of the fibers.
Claim 3
Dependent Claim
20 words
A catalyst assembly according to claim 1, characterized by the fact that the inorganic material and the metal are refractory.
Claim 4
Dependent Claim
33 words
A catalyst assembly according to either claim 1 or 2, characterized by the fact that the surface (So) is at least equal to 90% of the apparent peripheral surface of the entire fibers.
Claim 5
Dependent Claim
40 words
A catalyst assembly according to any of claims 1 or 2, characterized by the fact that the inorganic fibers are assembled in the form of a slightly twisted wick which is reinforced on the inside by a refractory metallic filament.
Claim 6
Dependent Claim
45 words
A catalyst assembly according to any of claims 1 or 2, characterized by the fact that the inorganic fibers are formed by the assembling by twisting of a plurality of rovings, which themselves are slightly twisted, reinforced on the inside by a refractory metallic filament.
Claim 7
Dependent Claim
57 words
A catalyst assembly according to any of claims 1 or 2, characterized by the fact that the enveloping structure comprises at least one metal wire wound helically around the fibers, the pitch of the helix and the size of the fiber being selected so as to determine an area (So) which is greater than the area (Se).
Claim 8
Dependent Claim
29 words
A catalyst assembly according to claim 6, characterized by the fact that the fibers are surrounded by two wires wound helically around them, the helices being in opposite direction.
Claim 9
Dependent Claim
24 words
A catalyst assembly according to claims 6, characterized by the fact that the metal wire has a diameter of between 0.05 and 0.02 millimeters.
Claim 10
Dependent Claim
23 words
A catalyst assembly according to any of claims 1 or 2, characterized by the fact that it comprises a plurality of textile elements.
Claim 11
Dependent Claim
19 words
A catalyst assembly according to claim 6, characterized by the fact that the textile elements are in woven form.
Claim 12
Dependent Claim
19 words
A catalyst assembly according to claim 10, characterized by the fact that the fabric has an open work structure.
Claim 13
Dependent Claim
21 words
A catalyst assembly according to claim 11, characterized by the fact that the fabric has a base of a taffeta weave.
Claim 14
Dependent Claim
28 words
A catalyst assembly according to claim 11, characterized by the fact that the fabric has a base of a weave of a 2 up 2 down twill type.
Claim 15
Dependent Claim
30 words
A catalyst assembly according to any of claims 1 or 2, characterized by the fact that the catalytically active substance is a product intended to effect an oxidation or combustion.
Claim 16
Dependent Claim
26 words
A catalyst assembly as in claim 1 wherein said fibers of an inorganic material extend in substantially the same direction as the complex filiform textile element.
References Cited (Backward Citations)
US688624A
Cited
US1624720A
Cited
US2189412A
Cited
US2364289A
Cited
US2840882A
Cited
US2816415A
Cited
FR1161568A
Cited
US3273978A
Cited
US4012249A
Cited
US4119748A
Cited
US4131701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-02-01 | 1985-08-03 | 1986-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-01 | 1989-08-03 | 1990-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-01 | 1993-08-03 | 1994-02-02 | $7700.00 | Window Closed / Lapsed |