US4923587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Terminal fixing structure for a ceramic base
Assignee: Niterra Co Ltd
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Filing: 1989-06-15
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Granted: 1990-05-08
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Expires: 2009-06-15
Abstract
Abstract A terminal fixing structure which includes a cylindrical ceramic base with a conductive contact on the side and a metal thermal with a pair of resilient arms for holding the side of the ceramic base and for contacting the conductive contact. The ceramic base has an engaging receptor on the side and each of the arms has an engaging portion for engaging with the receptor. Since the engaging receptor (e.g., ring grooves) of the ceramic base is firmly engaged with the engaging portion (e.g., teeth), the ceramic base and the terminal will not be separated from each other by a vibration, etc. An oxygen sensor using this terminal fixing structure is one possible application.
Inventors
- 👤 Hisaharu Nishio
- 👤 Hiromichi Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:19
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/406; G01N27/407; G01N27/4062; Y; Y10; Y10S; Y10S439/00; Y10S439/913
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
85 words
An oxygen sensor comprising: a cylindrical ceramic base with a conductive contact on the side, a metal terminal with a pair of resilient arms for fastening the side of the ceramic base and for conductively engaging the conductive contact, and an oxygen detection element with electrodes comprising an electrode connected to the conductive contact; in which the ceramic base has at least one engaging receptor on the side and each of side arms has at least one engaging portion for engaging with the engaging receptor.
Claim 2
Dependent Claim
85 words
An oxygen sensor comprising: a cylindrical ceramic base with a conductive contact on the side, a metal terminal with a pair of resilient arms for fastening the side of the ceramic base and for conductively engaging the conductive contact, and an oxygen detection element with electrodes comprising an electrode connected to the conductive contact; in which the ceramic base has at least one engaging receptor on the side and each of side arms has at least one engaging portion for engaging with the engaging receptor.
Claim 3
Dependent Claim
73 words
A terminal fixing structure comprising: a cylindrical ceramic base with a conductive contact on the side, and a metal terminal with a pair of resilient arms for fastening to the side of the ceramic base and for conductively engaging the conductive contact; in which the ceramic base has at least one engaging receptor on the side and each of the arms has at least one engaging portion for engaging with the engaging receptor.
Claim 4
Dependent Claim
73 words
A terminal fixing structure comprising: a cylindrical ceramic base with a conductive contact on the side, and a metal terminal with a pair of resilient arms for fastening to the side of the ceramic base and for conductively engaging the conductive contact; in which the ceramic base has at least one engaging receptor on the side and each of the arms has at least one engaging portion for engaging with the engaging receptor.
Claim 5
Dependent Claim
43 words
A terminal fixing structure according to claim 1, in which the engaging receptor is one or more ring grooves provided along the circumference of the cylindrical base, and the engaging portion is one or more teeth provided at the tip of each arm.
Claim 6
Dependent Claim
28 words
A terminal fixing structure according to claim 2, in which the teeth are positioned on each arm so as not to be in contact with the conductive contact.
Claim 7
Dependent Claim
29 words
A terminal fixing structure according to claim 1, in which the engaging receptor is at least one projection and the engaging portion is at least one recess or hole.
Claim 8
Dependent Claim
27 words
A terminal fixing structure according to claim 1, in which the engaging receptor is at least one projection and the engaging portion is at least one catch.
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) | 1993-05-07 | 1993-11-06 | 1994-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-07 | 1997-11-06 | 1998-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-07 | 2001-11-06 | 2002-05-08 | $7700.00 | Window Closed / Lapsed |