Patent US5207098A successfully refreshed from Google Patents.
US5207098A
Expired / Lapsed
US
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Device to measure the level of material within a container
Assignee: Individual
•
Filing: 1992-03-23
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Granted: 1993-05-04
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Expires: 2012-03-23
Abstract
Abstract A device is disclosed to measure the level of material within containers, in particular containers in which free-flowing materials having different dielectric constants, for example water and oil, are collected. The device includes a sensor, which is arranged electrically nonconductively fashion on an outer side of the container and forms part of an electric capacitor, and an electrically conducting complementary plate, which is arranged on the inside of container opposite the sensor and spaced therefrom, which, forms another part of an electric capacitor.
Inventors
- 👤 Berthold Koch
- 👤 Rainer Warzelberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:59
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/26; G01F23/263; G01F23/268
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
111 words
A device to measure the level of material within a container, in particular a container in which free-flowing material having different dielectric constants is collected, said device comprising a sensor which is arranged in an electrically nonconducting manner to an outer side of the container, said sensor forming a part of an electric capacitor, and an electrically conducting complementary plate, said complementary plate being located within the container opposite the sensor and spaced therefrom, said complementary plate forming another part of the electrical capacitor, wherein the sensor comprises a housing which is at least partially electrically conducting and an electrically conducting capacitor plate which is electrically nonconducting relative to the housing.
Claim 2
Independent Claim
111 words
A device to measure the level of material within a container, in particular a container in which free-flowing material having different dielectric constants is collected, said device comprising a sensor which is arranged in an electrically nonconducting manner to an outer side of the container, said sensor forming a part of an electric capacitor, and an electrically conducting complementary plate, said complementary plate being located within the container opposite the sensor and spaced therefrom, said complementary plate forming another part of the electrical capacitor, wherein the sensor comprises a housing which is at least partially electrically conducting and an electrically conducting capacitor plate which is electrically nonconducting relative to the housing.
Claim 3
Dependent Claim
25 words
A device according to claim 1, in which the sensor contains an electric or electronic measuring circuit which is electrically connected to the electric capacitor.
Claim 4
Dependent Claim
22 words
A device according to claim 1, wherein the housing of the sensor and the complementary plate are electrically connected to one another.
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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) | 1996-05-03 | 1996-11-02 | 1997-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-03 | 2000-11-02 | 2001-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-03 | 2004-11-02 | 2005-05-04 | $7700.00 | Window Closed / Lapsed |