Patent US4581206A successfully refreshed from Google Patents.
US4581206A
Expired / Lapsed
US
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Catalytic converter
Assignee: Honda Motor Co Ltd
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Filing: 1984-05-15
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Granted: 1986-04-08
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Expires: 2004-05-15
Abstract
Abstract A catalytic converter includes a cylindrical casing employing multiple catalytic elements. The elements are cushioned on each end and about their periphery. The elements are also held in place by end set plates and a set plate in the middle extending transversely in the cylindrical casing. The set plate in the middle is free to move and adjust within the converter to eliminate excessive stress on the catalytic elements.
Inventors
- 👤 Junji Otani
- 👤 Akira Okubo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:23
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2839; F01N3/2853; F01N13/00; F01N13/009; F01N13/0097; F01N3/2867; F01N13/18; F01N2350/00; F01N2350/02; F01N2350/04; F01N2350/06; F01N2450/00; F01N2450/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
176 words
A catalytic converter having a plurality of catalytic elements, comprising a cylindrical casing; a rigid set plate in the middle of said cylindrical casing, said set plate in the middle being positioned and arranged so as to be perpendicular to the coaxial centerline of said cylindrical casing and free to slide in said cylindrical casing along the coaxial centerline; a first catalytic element in said cylindrical casing on one side of said set plate in the middle; a second catalytic element in said cylindrical casing on the other side of said set plate in the middle; a first end set plate fixed in said cylindrical casing, said first catalytic element being between said set plate in the middle and said first end set plate; and a second end set plate fixed in said cylindrical casing, said second catalytic element being between said set plate in the middle and said second end set plate, said catalytic elements being retained in longitudinal compression against said set plate in the middle by said first and second end set plates.
Claim 2
Dependent Claim
176 words
A catalytic converter having a plurality of catalytic elements, comprising a cylindrical casing; a rigid set plate in the middle of said cylindrical casing, said set plate in the middle being positioned and arranged so as to be perpendicular to the coaxial centerline of said cylindrical casing and free to slide in said cylindrical casing along the coaxial centerline; a first catalytic element in said cylindrical casing on one side of said set plate in the middle; a second catalytic element in said cylindrical casing on the other side of said set plate in the middle; a first end set plate fixed in said cylindrical casing, said first catalytic element being between said set plate in the middle and said first end set plate; and a second end set plate fixed in said cylindrical casing, said second catalytic element being between said set plate in the middle and said second end set plate, said catalytic elements being retained in longitudinal compression against said set plate in the middle by said first and second end set plates.
Claim 3
Dependent Claim
209 words
A catalytic converter having a plurality of catalytic elements, comprising a cylindrical casing; a rigid set plate in the middle of said cylindrical casing, said set plate in the middle being positioned and arranged so as to be perpendicular to the coaxial centerline of said cylindrical casing and free to slide in said cylindrical casing along the coaxial centerline; a first catalytic element in said cylindrical casing on one side of said set plate in the middle; a second catalytic element in said cylindrical casing on the other side of said set plate in the middle; a first end set plate fixed in said cylindrical casing, said first catalytic element being between said set plate in the middle and said first end set plate; a second end set plate fixed in said cylindrical casing, said second catalytic element being between said set plate in the middle and said second end set plate, said catalytic elements being retained in longitudinal compression against said set plate in the middle by said first and second end set plates; and resilient cushion members between each of said catalytic elements and each of said set plate in the middle and said first and second end set plates and also being retained in longitudinal compression.
Claim 4
Dependent Claim
209 words
A catalytic converter having a plurality of catalytic elements, comprising a cylindrical casing; a rigid set plate in the middle of said cylindrical casing, said set plate in the middle being positioned and arranged so as to be perpendicular to the coaxial centerline of said cylindrical casing and free to slide in said cylindrical casing along the coaxial centerline; a first catalytic element in said cylindrical casing on one side of said set plate in the middle; a second catalytic element in said cylindrical casing on the other side of said set plate in the middle; a first end set plate fixed in said cylindrical casing, said first catalytic element being between said set plate in the middle and said first end set plate; a second end set plate fixed in said cylindrical casing, said second catalytic element being between said set plate in the middle and said second end set plate, said catalytic elements being retained in longitudinal compression against said set plate in the middle by said first and second end set plates; and resilient cushion members between each of said catalytic elements and each of said set plate in the middle and said first and second end set plates and also being retained in longitudinal compression.
Claim 5
Dependent Claim
24 words
The catalytic converter of claim 1 wherein said catalytic elements are spaced apart at least five millimeters by said set plate in the middle.
Claim 6
Dependent Claim
35 words
The catalytic converter of claim 2 wherein said set plate in the middle includes two rings, each said ring having an axially extending flange enclosing said cushion member between said flange and said cylindrical casing.
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) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |