US4992319A
Expired / Lapsed
US
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Activated carbon supporting honeycomb structure and process for fabricating the same
Assignee: Nichias Corp
•
Filing: 1989-05-16
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Granted: 1991-02-12
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Expires: 2009-05-16
Abstract
Abstract A process for fabricating an activated carbon supporting honeycomb structure is disclosed which comprises the following steps: dipping an inorganic fiber made paper in a suspension of fine particulate activated carbon and a binder or coating the suspension over the inorganic fiber made paper; drying the paper so that the activated carbon will fill the voids between the fibers in the paper; superposing sheets of the activated carbon filled paper alternately with corrugated sheets of the same paper; and bonding the individual sheets together with an adhesive to form a honeycomb structure.
Inventors
- 👤 Masaji Kurosawa
- 👤 Isao Terada
- 👤 Hideto Nakada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:18
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/28; B01J20/28014; B01J20/28042; B01J20/28045; B01J20/02; B01J20/20; B01J20/28033; B01J20/28035; B01J20/2804; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24711
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
51 words
A honeycomb structure used for ozone decomposition comprising: an inorganic fiber made paper having a void factor of at least 60%; and activated carbon and binder therefor that is loaded in an amount of 70 g per liter of paper volume and fixed in the voids between fibers in said paper.
Claim 2
Dependent Claim
51 words
A honeycomb structure used for ozone decomposition comprising: an inorganic fiber made paper having a void factor of at least 60%; and activated carbon and binder therefor that is loaded in an amount of 70 g per liter of paper volume and fixed in the voids between fibers in said paper.
Claim 3
Dependent Claim
21 words
A honeycomb structure according to claim 1 wherein said inorganic fiber made paper has a void factor of at least 90-96%.
Claim 4
Dependent Claim
19 words
A honeycomb structure according to claim 1 wherein said inorganic fiber made paper has a thickness of 0.1-1.0 mm.
Claim 5
Dependent Claim
83 words
A process for fabricating an activated carbon supporting honeycomb structure comprising the following steps: dipping an inorganic fiber made paper having a high void factor in a suspension of fine particulate activated carbon and a binder; drying the paper so that the activated carbon will fill the voids between fibers in the paper; superposing sheets of the activated carbon filled paper alternately with corrugated sheets of the same paper; and bonding the individual sheets together with an adhesive to form a honeycomb structure.
Claim 6
Dependent Claim
83 words
A process for fabricating an activated carbon supporting honeycomb structure comprising the following steps: dipping an inorganic fiber made paper having a high void factor in a suspension of fine particulate activated carbon and a binder; drying the paper so that the activated carbon will fill the voids between fibers in the paper; superposing sheets of the activated carbon filled paper alternately with corrugated sheets of the same paper; and bonding the individual sheets together with an adhesive to form a honeycomb structure.
Claim 7
Dependent Claim
20 words
A process according to claim 4 where said inorganic fiber made paper has a void factor of at least 60%.
Claim 8
Dependent Claim
18 words
A process according to claim 4 wherein said inorganic fiber made paper has a void factor of 90-96%.
Claim 9
Dependent Claim
25 words
A process according to claim 4 wherein said activated carbon is loaded in an amount of at least 70 g per liter of paper volume.
Claim 10
Dependent Claim
18 words
A process according to claim 4 wherein said inorganic fiber made paper has a thickness of 0.1-1.0 mm.
Claim 11
Dependent Claim
12 words
A process according to claim 4 wherein said binder is vinylidene chloride.
Claim 12
Dependent Claim
83 words
A process for fabricating an activated carbon supporting honeycomb structure comprising the following steps: coating a suspension of fine particulate activated carbon and a binder over an inorganic fiber made paper having a high void factor; drying the paper so that the activated carbon will fill the voids between fibers in the paper; superposing sheets of the activated carbon filled paper alternately with corrugated sheets of the same paper; and bonding the individual sheets together with an adhesive to form a honeycomb structure.
Claim 13
Dependent Claim
83 words
A process for fabricating an activated carbon supporting honeycomb structure comprising the following steps: coating a suspension of fine particulate activated carbon and a binder over an inorganic fiber made paper having a high void factor; drying the paper so that the activated carbon will fill the voids between fibers in the paper; superposing sheets of the activated carbon filled paper alternately with corrugated sheets of the same paper; and bonding the individual sheets together with an adhesive to form a honeycomb structure.
Claim 14
Dependent Claim
59 words
A honeycomb structure comprising: a plurality of sheets of inorganic fiber made paper of high void factor and activated carbon and binder therefor that is loaded and fixed in the voids between fibers in said paper; and a plurality of corrugated sheets of said inorganic fiber made paper alternately between said inorganic fiber made paper loaded with activated carbon.
Claim 15
Dependent Claim
59 words
A honeycomb structure comprising: a plurality of sheets of inorganic fiber made paper of high void factor and activated carbon and binder therefor that is loaded and fixed in the voids between fibers in said paper; and a plurality of corrugated sheets of said inorganic fiber made paper alternately between said inorganic fiber made paper loaded with activated carbon.
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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) | 1994-02-11 | 1994-08-13 | 1995-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-11 | 1998-08-13 | 1999-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-11 | 2002-08-13 | 2003-02-12 | $7700.00 | Window Closed / Lapsed |