US4619912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic converter substrate
Assignee: Motors Liquidation Co
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Filing: 1985-09-03
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Granted: 1986-10-28
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Expires: 2005-09-03
Abstract
Abstract There is disclosed a catalytic converter substrate formed of two smooth foil strips and one corrugated foil strip arranged and folded together so that alternate folds of each of the smooth foil strips have spaced sides and juxtaposed abutting sides and interleave with those of the other smooth foil strip and so that all of the folds of the corrugated foil strip have spaced sides that sandwich the folds with juxtaposed abutting sides of both the smooth foil strips so as to define passages therebetween and whereby all the strips are adapted to be retained together against telescoping by engaging retaining means at the opposite ends of all of their folds.
Inventors
- 👤 John I. Jalbing
- 👤 Richard T. Carriere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:25
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2839; F01N3/2853; F01N3/2857; B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; F01N3/2803; F01N3/2807; F01N3/281; F01N13/00; F01N13/18; F01N2330/00; F01N2330/02; F01N2450/00; F01N2450/02; F01N2450/22; Y; Y02; Y02A; Y02A50/00; Y02A50/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
A catalytic converter substrate formed of folded foil strips prevented from telescoping by retaining means engaging opposite ends of their folds characterized by two smooth foil strips and one corrugated foil strip arranged and folded together so that alternate folds of each of the smooth foil strips have spaced sides and juxtaposed abutting sides and interleave with those of the other smooth foil strip and so that all of the folds of the corrugated foil strip have spaced sides that sandwich the folds with juxtaposed abutting sides of both the smooth foil strips so as to define passages therebetween and whereby all the strips are adapted to be retained together against telescoping by engaging the retaining means at the opposite ends of all of their folds.
Claim 2
Dependent Claim
126 words
A catalytic converter substrate formed of folded foil strips prevented from telescoping by retaining means engaging opposite ends of their folds characterized by two smooth foil strips and one corrugated foil strip arranged and folded together so that alternate folds of each of the smooth foil strips have spaced sides and juxtaposed abutting sides and interleave with those of the other smooth foil strip and so that all of the folds of the corrugated foil strip have spaced sides that sandwich the folds with juxtaposed abutting sides of both the smooth foil strips so as to define passages therebetween and whereby all the strips are adapted to be retained together against telescoping by engaging the retaining means at the opposite ends of all of their folds.
Claim 3
Dependent Claim
145 words
A catalytic converter substrate formed of folded foil strips prevented from telescoping by retaining means engaging opposite ends of their folds characterized by two smooth foil strips and one corrugated foil strip arranged and folded together so that alternate folds of each of the smooth foil strips have spaced sides and juxtaposed abutting sides and interleave with those of the other smooth foil strip and so that the corrugated foil strip winds back and forth between the spaced sides of both the smooth foil strips and all of the folds of the corrugated foil strip have spaced sides that sandwich the folds with juxtaposed abutting sides of both the smooth foil strips so as to define passages therebetween and whereby all the strips are adapted to be retained together against telescoping by engaging the retaining means at the opposite ends of all of their folds.
Claim 4
Dependent Claim
145 words
A catalytic converter substrate formed of folded foil strips prevented from telescoping by retaining means engaging opposite ends of their folds characterized by two smooth foil strips and one corrugated foil strip arranged and folded together so that alternate folds of each of the smooth foil strips have spaced sides and juxtaposed abutting sides and interleave with those of the other smooth foil strip and so that the corrugated foil strip winds back and forth between the spaced sides of both the smooth foil strips and all of the folds of the corrugated foil strip have spaced sides that sandwich the folds with juxtaposed abutting sides of both the smooth foil strips so as to define passages therebetween and whereby all the strips are adapted to be retained together against telescoping by engaging the retaining means at the opposite ends of all of their folds.
Claim 5
Dependent Claim
147 words
A catalytic converter substrate formed of folded foil strips prevented from telescoping by retaining means engaging opposite ends of their folds characterized by two smooth foil strips and one corrugated foil strip arranged and folded together in varying widths so that alternate folds of each of the smooth foil strips have spaced sides and juxtaposed abutting sides and interleave with those of the other smooth foil strip and so that all of the folds of the corrugated foil strip have spaced sides that sandwich the folds with juxtaposed abutting sides of both the smooth foil strips so as to define passages therebetween and whereby all the strips are adapted to be retained together against telescoping by engaging the retaining means at the opposite ends of all of their folds and the cross-sectional profile of the substrate is determined by the variation in the widths of the folds.
Claim 6
Dependent Claim
147 words
A catalytic converter substrate formed of folded foil strips prevented from telescoping by retaining means engaging opposite ends of their folds characterized by two smooth foil strips and one corrugated foil strip arranged and folded together in varying widths so that alternate folds of each of the smooth foil strips have spaced sides and juxtaposed abutting sides and interleave with those of the other smooth foil strip and so that all of the folds of the corrugated foil strip have spaced sides that sandwich the folds with juxtaposed abutting sides of both the smooth foil strips so as to define passages therebetween and whereby all the strips are adapted to be retained together against telescoping by engaging the retaining means at the opposite ends of all of their folds and the cross-sectional profile of the substrate is determined by the variation in the widths of the folds.
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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) | 1989-10-27 | 1990-04-28 | 1990-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-27 | 1994-04-28 | 1994-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-27 | 1998-04-28 | 1998-10-28 | $7700.00 | Window Closed / Lapsed |