Patent US5002923A successfully refreshed from Google Patents.
US5002923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst support for catalytic reactors
Assignee: Nippon Yakin Kogyo Co Ltd
•
Filing: 1989-07-21
•
Granted: 1991-03-26
•
Expires: 2009-07-21
Abstract
Abstract Disclosed is a catalyst support for catalytic reactors for cleaning exhaust gas, characterized in that flat steel band plates and corrugated steel band plates, each of which is heat-resistance and covered with catalyst, are superposed in such a way that one comes on top of the other alternately, and brazed together on their center line running along the longitudinal direction thereof.
Inventors
- 👤 Yoshikazu Koshiba
- 👤 Takeshi Kamiya
- 👤 Yuji Ikegami
- 👤 Noboru Tachino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:31
CPC Classifications
B; B01; B01J; B01J35/00; B01J35/50; B01J35/56; B01J35/57; F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2803; F01N3/2807; F01N3/281; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; F01N2330/00; F01N2330/02; Y; Y02; Y02A; Y02A50/00; Y02A50/20; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/1234
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
59 words
A catalyst support for catalytic reactors for cleaning exhaust gas, characterized in that flat steel band plates and corrugated steel band plates, each of which is heat-resistant and covered with catalyst, are superposed in such a way that one comes on top of the other alternately, and brazed together on their center line running along the longitudinal direction thereof.
Claim 2
Dependent Claim
59 words
A catalyst support for catalytic reactors for cleaning exhaust gas, characterized in that flat steel band plates and corrugated steel band plates, each of which is heat-resistant and covered with catalyst, are superposed in such a way that one comes on top of the other alternately, and brazed together on their center line running along the longitudinal direction thereof.
Claim 3
Dependent Claim
27 words
A catalyst support according to claim 1, which is formed into a cylindrical, honeycomb structure by rolling up said superposed flat and corrugated steel band plates together.
Claim 4
Dependent Claim
28 words
A catalyst support according to claim 1, in the production progress of which said flat and corrugated steel band plates are brazed by using a foil brazing material.
Claim 5
Dependent Claim
37 words
A catalyst support according to claim 1, in the production progress of which said flat and corrugated steel band plates are brazed by using a foil brazing material which is sandwiched between them before they are superposed.
References Cited (Backward Citations)
US4433064A
Cited
US4719680A
Cited
US4777158A
Cited
EP0245738A1
Cited
JPS6336843A
Cited
DE3726502A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-03-25 | 1994-09-24 | 1995-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-25 | 1998-09-24 | 1999-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-25 | 2002-09-24 | 2003-03-26 | $7700.00 | Window Closed / Lapsed |