Patent US5097248A successfully refreshed from Google Patents.
US5097248A
Expired / Lapsed
US
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Electrode for level detection
Assignee: Murata Manufacturing Co Ltd
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Filing: 1990-01-31
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Granted: 1992-03-17
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Expires: 2010-01-31
Abstract
Abstract An electrode for level detection includes a detection electrode including conductor portions and resistor portions arranged and formed one after the other in a level change direction. An insulating coating layer is formed on either each conductor portion or each resistor portion. The insulating coating layer may be of a film having a property to repel a liquid to be measured.
Inventors
- 👤 Akira Kumada
- 👤 Kenji Matsuo
- 👤 Michihiro Murata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:55
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/24; G01F23/241; G01F23/242
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
81 words
An electrode for the level detection of a fluid having a level that changes in a given direction, in which a detection electrode comprises a group of conductor portions and a group of resistor portions with said conductor portions and resistor portions being arranged one after the other in said direction, and means inhibiting contact between said fluid and the portions of one of said groups while permitting contact between said fluid and the portions of the other of said groups.
Claim 2
Dependent Claim
81 words
An electrode for the level detection of a fluid having a level that changes in a given direction, in which a detection electrode comprises a group of conductor portions and a group of resistor portions with said conductor portions and resistor portions being arranged one after the other in said direction, and means inhibiting contact between said fluid and the portions of one of said groups while permitting contact between said fluid and the portions of the other of said groups.
Claim 3
Dependent Claim
42 words
An electrode for level detection as set forth in claim 1, wherein said means inhibiting contact between said fluid and the portions of one of said groups comprises an insulating coating layer formed on either each conductor portion or each resistor portion.
Claim 4
Dependent Claim
31 words
An electrode for level detection as set forth in claim 2, wherein said insulating coating layer is comprised of a film having a property to repel a fluid to be measured.
Claim 5
Dependent Claim
103 words
An electrode for level detection of a fluid having a level that changes in a given direction, in which the surface of a detection electrode is immersed in a fluid to be measured, said detection electrode being comprised of a group of a plurality of first small sections and a group of a plurality of second small sections, first and second said sections being arranged alternately in said direction, the sections of one group of sections being exposed to said fluid, the sections of the other group thereof being coated with a film having a property to repel said fluid to be measured.
Claim 6
Dependent Claim
103 words
An electrode for level detection of a fluid having a level that changes in a given direction, in which the surface of a detection electrode is immersed in a fluid to be measured, said detection electrode being comprised of a group of a plurality of first small sections and a group of a plurality of second small sections, first and second said sections being arranged alternately in said direction, the sections of one group of sections being exposed to said fluid, the sections of the other group thereof being coated with a film having a property to repel said fluid to be measured.
Claim 7
Dependent Claim
17 words
The electrode of claim 4 wherein said first sections are resistive and said second sections are conductive.
Claim 8
Dependent Claim
79 words
An electrode for the level detection of a fluid having a level that changes in a given direction, said electrode comprising an insulating substrate, a group of a plurality of conductive sections on said substrate and spaced apart in said direction, a group of a plurality of resistive sections, with each resistive section being on said substrate between a separate pair of adjacent conductive sections, and insulating means covering the sections of only one of said groups of sections.
Claim 9
Dependent Claim
79 words
An electrode for the level detection of a fluid having a level that changes in a given direction, said electrode comprising an insulating substrate, a group of a plurality of conductive sections on said substrate and spaced apart in said direction, a group of a plurality of resistive sections, with each resistive section being on said substrate between a separate pair of adjacent conductive sections, and insulating means covering the sections of only one of said groups of sections.
References Cited (Backward Citations)
DE2246557A1
Cited
US4461175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-17 | 1995-09-16 | 1996-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-17 | 1999-09-16 | 2000-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-17 | 2003-09-16 | 2004-03-17 | $7700.00 | Window Closed / Lapsed |