US5322672A
Expired / Lapsed
US
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Electrically conductive honeycomb body, and method of monitoring and operating it as an exhaust gas catalyst carrier body
Assignee: Vitesco Technologies Lohmar Verwaltungs GmbH
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Filing: 1990-10-25
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Granted: 1994-06-21
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Expires: 2010-10-25
Abstract
Abstract A honeycomb body assembly, in particular a catalyst carrier body, comprises at least one electrically heatable honeycomb body having layered metal sheets forming a stack with a plurality of channels through which a fluid can flow. The metal sheets have a thickness of about 0.03 to 0.12 mm. The honeycomb body is electrically subdivided with regard to its cross-section and/or in its axial direction. At least one electric current path is formed through the metal sheets with an electric resistance of between 0.01 and 2 Ω. The resistance, which is dependent on the temperature, can be used for monitoring and regulating the honeycomb assembly.
Inventors
- 👤 Hans-Jurgen Breuer
- 👤 Theodor Cyron
- 👤 Wolfgang Maus
- 👤 Helmut Swars
- 👤 Ludwig Wieres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:40
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/18; F01N3/20; F01N3/24; F01N3/28; F01N3/2803; F01N3/2807; F01N3/281; F01N3/2006; F01N3/2013; F01N3/2026; F01N9/00; F01N2330/00; F01N2330/02; F01N2330/30; F01N2330/44; Y; Y02; Y02A; Y02A50/00; Y02A50/20; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y02T10/40; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 66
Claim 1
Independent Claim
87 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured wound sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to substantially 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.03 and substantially 2 Ω.
Claim 2
Dependent Claim
87 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured wound sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to substantially 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.03 and substantially 2 Ω.
Claim 3
Dependent Claim
17 words
The assembly according to claim 1, wherein said sheet-metal layers are formed of high-temperature corrosion-proof sheet metal.
Claim 4
Dependent Claim
23 words
The assembly according to claim 1, wherein said insulating means are in the form of intermediate layers disposed between said sheet metal layers.
Claim 5
Dependent Claim
47 words
The assembly according to claim 1, wherein said honeycomb body is a plurality of honeycomb bodies in the form of into disks being mutually spaced apart in the axial direction defining gaps therebetween along the axial length of said honeycomb body, said gaps providing said insulating means.
Claim 6
Dependent Claim
17 words
The assembly according to claim 1, wherein said sheet-metal layers are alternating smooth and corrugated sheet-metal layers.
Claim 7
Dependent Claim
18 words
The assembly according to claim 1, wherein said electric resistance is between substantially 0.1 and substantially 1 Ω.
Claim 8
Dependent Claim
14 words
The assembly according to claim 6, wherein said electric resistance is substantially 0.6 Ω.
Claim 9
Dependent Claim
21 words
The assembly according to claim 1, wherein said thickness of said sheet metal layers is substantially 0.03 to substantially 0.06 mm.
Claim 10
Dependent Claim
86 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured wound sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω.
Claim 11
Dependent Claim
86 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured wound sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω.
Claim 12
Dependent Claim
17 words
The assembly according to claim 9, wherein said sheet-metal layers are formed of high-temperature corrosion-proof sheet metal.
Claim 13
Dependent Claim
23 words
The assembly according to claim 9, wherein said insulating means are in the form of intermediate layers disposed between said sheet metal layers.
Claim 14
Dependent Claim
47 words
The assembly according to claim 9, wherein said honeycomb body is a plurality of honeycomb bodies in the form of into disks being mutually spaced apart in the axial direction defining gaps therebetween along the axial length of said honeycomb body, said gaps providing said insulating means.
Claim 15
Dependent Claim
17 words
The assembly according to claim 9, wherein said sheet-metal layers are alternating smooth and corrugated sheet-metal layers.
Claim 16
Dependent Claim
21 words
The assembly according to claim 9, wherein said thickness of said sheet metal layers is substantially 0.03 to substantially 0.06 mm.
Claim 17
Dependent Claim
114 words
A carrier body for exhaust gas catalysts, comprising sheet-metal layers being at least partially structured and high-temperature corrosion-proof, said sheet-metal layers forming a multiplicity of channels through which a fluid can flow in a general axial direction, insulating means disposed between said sheet-metal layers for electrically dividing the carrier body cross-sectionally and forming at least one electric current path through said sheet-metal layers, such that the carrier body has an electric resistance of between substantially 0.03 and substantially 2 Ω, wherein said insulating means divide the carrier body into zones being at least partly insulated from one another, said zones forming groups, and including electrical connecting bridges for electrically connecting said groups in series.
Claim 18
Dependent Claim
114 words
A carrier body for exhaust gas catalysts, comprising sheet-metal layers being at least partially structured and high-temperature corrosion-proof, said sheet-metal layers forming a multiplicity of channels through which a fluid can flow in a general axial direction, insulating means disposed between said sheet-metal layers for electrically dividing the carrier body cross-sectionally and forming at least one electric current path through said sheet-metal layers, such that the carrier body has an electric resistance of between substantially 0.03 and substantially 2 Ω, wherein said insulating means divide the carrier body into zones being at least partly insulated from one another, said zones forming groups, and including electrical connecting bridges for electrically connecting said groups in series.
Claim 19
Dependent Claim
24 words
The carrier body according to claim 15, wherein said insulating means are in the form of intermediate layers disposed between said sheet metal layers.
Claim 20
Dependent Claim
14 words
The carrier body according to claim 15, wherein said sheet-metal layers are wound layers.
Claim 21
Dependent Claim
14 words
The carrier body according to claim 15, wherein said sheet-metal layers form a stack.
Claim 22
Dependent Claim
16 words
The assembly according to claim 15, wherein said sheet-metal layers are alternating smooth and corrugated layers.
Claim 23
Dependent Claim
18 words
The assembly according to claim 15, wherein said electric resistance is between substantially 0.1 and substantially 1 Ω.
Claim 24
Dependent Claim
14 words
The assembly according to claim 20, wherein said electric resistance is substantially 0.6 Ω.
Claim 25
Dependent Claim
21 words
The assembly according to claim 15, wherein said sheet metal layers have a thickness of substantially 0.03 to substantially 0.06 mm.
Claim 26
Dependent Claim
120 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to substantially 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said insulating means divide said honeycomb body into zones being at least partly insulated from one another, said zones forming groups, and including electrical connecting bridges for electrically connecting said groups in series.
Claim 27
Dependent Claim
120 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to substantially 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said insulating means divide said honeycomb body into zones being at least partly insulated from one another, said zones forming groups, and including electrical connecting bridges for electrically connecting said groups in series.
Claim 28
Dependent Claim
135 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, said layers forming a stack and said stack including at least four adjacent sheet-metal layers through which current flows parallel, wherein said at least four adjacent sheet-metal layers are accordion-folded and having folds and forming a body, and wherein said electrical insulating means are in the form of intermediate layers.
Claim 29
Dependent Claim
135 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, said layers forming a stack and said stack including at least four adjacent sheet-metal layers through which current flows parallel, wherein said at least four adjacent sheet-metal layers are accordion-folded and having folds and forming a body, and wherein said electrical insulating means are in the form of intermediate layers.
Claim 30
Dependent Claim
23 words
The assembly according to claim 24, wherein said at least four adjacent sheet metal layers are substantially 8 to 12 sheet metal layers.
Claim 31
Dependent Claim
30 words
The assembly according to claim 24, wherein said stack is crimped in the regions of said folds where said at least four sheet metal layers rest flat against one another.
Claim 32
Dependent Claim
24 words
The assembly according to claim 26, including reinforcement means disposed in the region of said folds for lowering the electrical resistance of said folds.
Claim 33
Dependent Claim
154 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said layers have ends and form substantially U-shaped stacks, said stacks being electrically insulated from one another by said insulating means, including a supporting wall to which said ends are attached, said supporting wall including a plurality of electrically conductive segments insulated from one another, each of said segments electrically connecting at least two of said stacks for forming a series circuit through said stacks and said segments.
Claim 34
Dependent Claim
154 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said layers have ends and form substantially U-shaped stacks, said stacks being electrically insulated from one another by said insulating means, including a supporting wall to which said ends are attached, said supporting wall including a plurality of electrically conductive segments insulated from one another, each of said segments electrically connecting at least two of said stacks for forming a series circuit through said stacks and said segments.
Claim 35
Dependent Claim
157 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said layers form a stack being entwined to form a body, said stack having a top, a bottom, two ends and a given height, and being provided with electrically insulating layers on said bottom and on said top, and wherein said sheet-metal layers are mutually electrically conductive at least in the region of said ends of said stack, and including electrical connecting means for connecting said ends to a current source.
Claim 36
Dependent Claim
157 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said layers form a stack being entwined to form a body, said stack having a top, a bottom, two ends and a given height, and being provided with electrically insulating layers on said bottom and on said top, and wherein said sheet-metal layers are mutually electrically conductive at least in the region of said ends of said stack, and including electrical connecting means for connecting said ends to a current source.
Claim 37
Dependent Claim
38 words
The assembly according to claim 29, wherein said honeycomb body has a substantially circular cross-section with a given diameter, and said given height of said stack being at least as small as one-third the diameter of the cross-section.
Claim 38
Dependent Claim
129 words
A carrier body for exhaust gas catalysts, comprising sheet-metal layers being at least partially structured and high-temperature corrosion-proof, said sheet-metal layers forming a multiplicity of channels through which a fluid can flow in a general axial direction, insulating means disposed between said sheet-metal layers for electrically dividing the carrier body cross-sectionally and forming at least one electric current path through said sheet-metal layers, such that the carrier body has an electric resistance of between substantially 0.03 and substantially 2 Ω, wherein said sheet-metal layers include a stack of at least four adjacent sheet-metal layers through which current flows parallel, wherein said stack of at least four adjacent sheet-metal layers is accordion-folded having folds and forming a body, and wherein said insulating means are in the form of intermediate layers.
Claim 39
Dependent Claim
129 words
A carrier body for exhaust gas catalysts, comprising sheet-metal layers being at least partially structured and high-temperature corrosion-proof, said sheet-metal layers forming a multiplicity of channels through which a fluid can flow in a general axial direction, insulating means disposed between said sheet-metal layers for electrically dividing the carrier body cross-sectionally and forming at least one electric current path through said sheet-metal layers, such that the carrier body has an electric resistance of between substantially 0.03 and substantially 2 Ω, wherein said sheet-metal layers include a stack of at least four adjacent sheet-metal layers through which current flows parallel, wherein said stack of at least four adjacent sheet-metal layers is accordion-folded having folds and forming a body, and wherein said insulating means are in the form of intermediate layers.
Claim 40
Dependent Claim
24 words
The carrier body according to claim 31, wherein said at least four adjacent sheet metal layers are substantially 8 to 12 sheet metal layers.
Claim 41
Dependent Claim
32 words
The carrier body according to claim 31, wherein said stack is crimped in the regions of said reversing points where said at least four adjacent sheet-metal layers rest flat against one another.
Claim 42
Dependent Claim
25 words
The carrier body according to claim 33, including reinforcement means disposed in the region of said folds for lowering the electrical resistance of said folds.
Claim 43
Dependent Claim
150 words
A carrier body for exhaust gas catalysts, comprising sheet-metal layers being at least partially structured and high-temperature corrosion-proof, said sheet-metal layers forming a multiplicity of channels through which a fluid can flow in a general axial direction, insulating means disposed between said sheet-metal layers for electrically dividing the carrier body cross-sectionally and forming at least one electric current path through said sheet-metal layers, such that the carrier body has an electric resistance of between substantially 0.03 and substantially 2 Ω, wherein said layers have ends and form substantially U-shaped stacks being electrically insulated from one another by said insulating means, including a supporting wall to which said ends of said layers are atttached, said supporting wall including a plurality of electrically conductive segments insulated from one another, each of said segments electrically connecting at least two of said stacks for forming a series circuit through said stacks and said segments.
Claim 44
Dependent Claim
150 words
A carrier body for exhaust gas catalysts, comprising sheet-metal layers being at least partially structured and high-temperature corrosion-proof, said sheet-metal layers forming a multiplicity of channels through which a fluid can flow in a general axial direction, insulating means disposed between said sheet-metal layers for electrically dividing the carrier body cross-sectionally and forming at least one electric current path through said sheet-metal layers, such that the carrier body has an electric resistance of between substantially 0.03 and substantially 2 Ω, wherein said layers have ends and form substantially U-shaped stacks being electrically insulated from one another by said insulating means, including a supporting wall to which said ends of said layers are atttached, said supporting wall including a plurality of electrically conductive segments insulated from one another, each of said segments electrically connecting at least two of said stacks for forming a series circuit through said stacks and said segments.
Claim 45
Dependent Claim
159 words
A carrier body for exhaust gas catalysts, comprising sheet-metal layers being at least partially structured and high-temperature corrosion-proof, said sheet-metal layers forming a multiplicity of channels through which a fluid can flow in a general axial direction, insulating means disposed between said sheet-metal layers for electrically dividing the carrier body cross-sectionally and forming at least one electric current path through said sheet-metal layers, such that the carrier body has an electric resistance of between substantially 0.03 and substantially 2 Ω, wherein said sheet-metal layers are disposed in the form of a stack of contrarily entwined sheets forming a body, said stack having a top, a bottom, two ends and a given height, and being provided with electrically insulating layers on said bottom and on said top, and wherein said sheet-metal layers are mutually electrically conductive at least in the region of said ends of said stack, and including electrical connecting means for connecting said ends to a current source.
Claim 46
Dependent Claim
159 words
A carrier body for exhaust gas catalysts, comprising sheet-metal layers being at least partially structured and high-temperature corrosion-proof, said sheet-metal layers forming a multiplicity of channels through which a fluid can flow in a general axial direction, insulating means disposed between said sheet-metal layers for electrically dividing the carrier body cross-sectionally and forming at least one electric current path through said sheet-metal layers, such that the carrier body has an electric resistance of between substantially 0.03 and substantially 2 Ω, wherein said sheet-metal layers are disposed in the form of a stack of contrarily entwined sheets forming a body, said stack having a top, a bottom, two ends and a given height, and being provided with electrically insulating layers on said bottom and on said top, and wherein said sheet-metal layers are mutually electrically conductive at least in the region of said ends of said stack, and including electrical connecting means for connecting said ends to a current source.
Claim 47
Dependent Claim
38 words
The carrier body according to claim 36, wherein said body has a substantially circular cross-section with a given diameter, and said given height of said stack being at least as small as one-third the diameter of the cross-section.
Claim 48
Dependent Claim
111 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said honeycomb body is a plurality of honeycomb bodies in the form of disks disposed in line with one another and connected electrically in parallel.
Claim 49
Dependent Claim
111 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said honeycomb body is a plurality of honeycomb bodies in the form of disks disposed in line with one another and connected electrically in parallel.
Claim 50
Dependent Claim
111 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said honeycomb body is a plurality of honeycomb bodies in the form of disks disposed in line with one another and connected electrically in series.
Claim 51
Dependent Claim
111 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said honeycomb body is a plurality of honeycomb bodies in the form of disks disposed in line with one another and connected electrically in series.
Claim 52
Dependent Claim
97 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said insulating means are in the form of granular ceramic material.
Claim 53
Dependent Claim
97 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said insulating means are in the form of granular ceramic material.
Claim 54
Dependent Claim
19 words
The assembly according to claim 40, wherein said granular ceramic material is applied to adjacent surfaces of said layers.
Claim 55
Dependent Claim
96 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said insulating means are in the form of ceramic platelets.
Claim 56
Dependent Claim
96 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said insulating means are in the form of ceramic platelets.
Claim 57
Dependent Claim
97 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said insulating means are in the form of ceramic fiber mats.
Claim 58
Dependent Claim
97 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said insulating means are in the form of ceramic fiber mats.
Claim 59
Dependent Claim
122 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said insulating means are in the form of a ceramic intermediate layer disposed between two of said sheet-metal layers, including means for forming a form-locking connection between said two sheet-metal layers for hindering axial displacement therebetween.
Claim 60
Dependent Claim
122 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said insulating means are in the form of a ceramic intermediate layer disposed between two of said sheet-metal layers, including means for forming a form-locking connection between said two sheet-metal layers for hindering axial displacement therebetween.
Claim 61
Dependent Claim
133 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said honeycomb body has two end faces and current flows therethrough in an axial direction, including at least one electrically highly conductive connecting strut integrated into at least one of said end faces for uniformly distributing the electrical current density over the cross-section of said honeycomb body.
Claim 62
Dependent Claim
133 words
A honeycomb body assembly, comprising an electrically heatable honeycomb body having an axial length and at least partially structured sheet-metal layers forming a multiplicity of channels through which a fluid can flow generally in an axial direction, said sheet-metal layers having a thickness of substantially 0.03 to 0.12 mm, and insulating means disposed inside said honeycomb body for electrically dividing said honeycomb body and forming an electric current path through said sheet-metal layers having an electric resistance of between substantially 0.01 and substantially 2 Ω, wherein said honeycomb body has two end faces and current flows therethrough in an axial direction, including at least one electrically highly conductive connecting strut integrated into at least one of said end faces for uniformly distributing the electrical current density over the cross-section of said honeycomb body.
Claim 63
Dependent Claim
78 words
The assembly according to claim 45, including a metal jacket tube in which said honeycomb body is disposed, an electrically insulating duct disposed in said jacket tube, and an electrical supply line suitable for currents of substantially between 50 and 400 A leading into said jacket tube through said insulating duct and being connected to said connecting strut, said supply line being high-temperature-proof and being capable of absorbing relative movement between said connecting strut and said insulating duct.
Claim 64
Dependent Claim
78 words
The assembly according to claim 45, including a metal jacket tube in which said honeycomb body is disposed, an electrically insulating duct disposed in said jacket tube, and an electrical supply line suitable for currents of substantially between 50 and 600 A leading into said jacket tube through said insulating duct and being connected to said connecting strut, said supply line being high-temperature-proof and being capable of absorbing relative movement between said connecting strut and said insulating duct.
Claim 65
Dependent Claim
74 words
Honeycomb body, comprising wound sheet-metal layers formed of at least partially structured and high-temperature corrosion-proof sheet-metal, said sheet-metal layers forming a multiplicity of channels through which a fluid can flow, electrical insulating means disposed between said sheet-metal layers for electrically dividing the carrier body cross-sectionally and leaving at least one electric current path through said sheet-metal layers, such that said honeycomb body has an electric resistance of between substantially 0.01 and substantially 2 Ω.
Claim 66
Dependent Claim
74 words
Honeycomb body, comprising wound sheet-metal layers formed of at least partially structured and high-temperature corrosion-proof sheet-metal, said sheet-metal layers forming a multiplicity of channels through which a fluid can flow, electrical insulating means disposed between said sheet-metal layers for electrically dividing the carrier body cross-sectionally and leaving at least one electric current path through said sheet-metal layers, such that said honeycomb body has an electric resistance of between substantially 0.01 and substantially 2 Ω.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-06-20 | 1997-12-20 | 1998-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-20 | 2001-12-20 | 2002-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-20 | 2005-12-20 | 2006-06-21 | $7700.00 | Window Closed / Lapsed |