Patent US3972834A successfully refreshed from Google Patents.
US3972834A
Expired / Lapsed
US
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Catalyst carriers
Assignee: Foseco Inc
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Filing: 1974-04-26
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Granted: 1976-08-03
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Expires: 1994-04-26
Abstract
Abstract A ceramic material comprising a cellular ceramic body having ceramic fibers bonded to its internal surfaces. The cellular ceramic body may be a reticular foam-structured ceramic, and the structure may be used as a supported catalyst.
Inventors
- 👤 Colin Washbourne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:18
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/0009; B01J37/0018; B01J35/00; B01J35/50; B01J35/56
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
34 words
A ceramic material consisting essentially of a cellular ceramic body having ceramic fibres bonded to its internal surfaces, said ceramic fibres substantially increasing the turbulence induced in a fluid passing through said ceramic body.
Claim 2
Dependent Claim
34 words
A ceramic material consisting essentially of a cellular ceramic body having ceramic fibres bonded to its internal surfaces, said ceramic fibres substantially increasing the turbulence induced in a fluid passing through said ceramic body.
Claim 3
Dependent Claim
16 words
A material according to claim 1 wherein the cellular ceramic body is a reticular foam-structured ceramic.
Claim 4
Dependent Claim
37 words
A ceramic material according to claim 1 wherein the fibres are bonded to the internal surfaces of the ceramic body by a bonding agent selected from the class consisting of aluminum hydroxychloride, alumina hydrosol and silica hydrosol.
Claim 5
Dependent Claim
29 words
A ceramic material according to claim 1 wherein the cellular ceramic body consists essentially of a material selected from the class consisting of cordierite, silicon nitride, alumina and lithia-alumina-silica.
Claim 6
Dependent Claim
25 words
A ceramic material according to claim 1 wherein the ceramic fibres are selected from the class consisting of alumina, silica, alumino-silicate, zirconia and asbestos fibres.
Claim 7
Dependent Claim
40 words
A supported catalyst comprising as support a ceramic material consisting essentially of a cellular ceramic body having ceramic fibres bonded to its internal surfaces, said ceramic fibres substantially increasing the turbulence induced in a fluid passing through said ceramic body.
Claim 8
Dependent Claim
40 words
A supported catalyst comprising as support a ceramic material consisting essentially of a cellular ceramic body having ceramic fibres bonded to its internal surfaces, said ceramic fibres substantially increasing the turbulence induced in a fluid passing through said ceramic body.
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) | 1979-08-03 | 1980-02-02 | 1980-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-03 | 1984-02-02 | 1984-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-03 | 1988-02-02 | 1988-08-03 | $7700.00 | Window Closed / Lapsed |