Gas sensor
US-2017284957-A1 · Oct 5, 2017 · US
Gas sensor
US12306131B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12306131-B2 |
| Application number | US-202017283185-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 16, 2020 |
| Priority date | Apr 17, 2019 |
| Publication date | May 20, 2025 |
| Grant date | May 20, 2025 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
A gas sensor is configured to inhibit wear of a metal member contacting with a member containing ceramic. The gas sensor comprising: a first member containing ceramic; and a metal member contacting with the first member, wherein a hardness h1 of a contact part of the metal member contacting with the first member is greater than a hardness h2 of a reference part exhibiting a maximum thickness of the metal member.
First claim
Opening claim text (preview).
The invention claimed is: 1. A gas sensor comprising: a first member that is an electrode pad containing ceramic and a noble metal; and a metal member that has a contact part contacting the first member and a reference part exhibiting a maximum thickness of the metal member, wherein a hardness h1 of the contact part is greater than a hardness h2 of the reference part, the metal member is a metal terminal electrically connected to the first member, and the reference part has a flat shaped portion whose end is folded toward the contact part in a longitudinal direction of the metal member. 2. The gas sensor according to claim 1 , wherein a thickness t1 of the contact part is smaller than a thickness t2 of the reference part. 3. The gas sensor according to claim 1 , wherein the contact part is provided immediately adjacent to an end of the metal member. 4. The gas sensor according to claim 1 , wherein the contact part is tapered. 5. The gas sensor according to claim 1 , wherein the contact part is work-hardened such that the hardness h1 of the contact part becomes greater than the hardness h2 of the reference part. 6. The gas sensor according to claim 1 , wherein the reference part is not subject to work hardening, or is subject to less work hardening than the contact part such that the hardness h1 of the contact part is greater than the hardness h2 of the reference part.
Assignees
Inventors
Classifications
Oxygen concentration cells · CPC title
Means for sealing the sensor element in a housing · CPC title
- G01N27/4062Primary
Electrical connectors associated therewith · CPC title
- G01N27/4077Primary
Means for protecting the electrolyte or the electrodes · CPC title
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Frequently asked questions
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- What does patent US12306131B2 cover?
- A gas sensor is configured to inhibit wear of a metal member contacting with a member containing ceramic. The gas sensor comprising: a first member containing ceramic; and a metal member contacting with the first member, wherein a hardness h1 of a contact part of the metal member contacting with the first member is greater than a hardness h2 of a reference part exhibiting a maximum thickness of…
- Who is the assignee on this patent?
- Ngk Spark Plug Co, Niterra Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G01N27/4062. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue May 20 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).