# US 2022/0034699 A1 · Capacitive gauge with lamellar electrodes held by spacer(s)

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- Number: US 2022/0034699 A1
- Document ID: US20220034699A1
- Status: Published application
- Kind: A1
- Application number: 17/278,730
- Filed: 2019-10-02
- Published: 2022-02-03
- Earliest claimed: 2018-10-02
- Assignees: Luxembourg Patent Company S.A.
- Applicants: Luxembourg Patent Company S.A.
- Inventors: Privat RODERES; Philippe SCHMITZ
- Web page: https://patentgrep.com/patent/US20220034699A1

## CPC

- G01F 23/268: {mounting arrangements of probes}
- G01F: MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME

## Abstract

A capacitive level gauge for a container of a medium like compressed gas or liquid, comprising a body configured for being mounted on the container; two parallel lamellar electrodes extending from the body, for being inside the container and in contact with the medium; wherein the capacitive level gauge further comprises at least one spacer with two slots engaging with the two electrodes, respectively, maintaining a constant distance between the electrodes.

## Claims

### Claim at position 1

-11. (canceled)

### Claim 12

A capacitive level gauge for a container of a medium said gauge comprising:
a body configured for being mounted on the container;
two parallel lamellar electrodes extending from the body, the electrodes disposable inside the container and in contact with the medium;
at least one spacer with two slots engaging with the two electrodes and maintaining a constant distance between the electrodes;
wherein the at least one spacer elastically deforms the electrodes so as to generate frictional forces holding the spacer in place without further fixation means.

### Claim 13 (depends on 12)

The gauge according to claim 12, wherein the at least one spacer is made of plastic.

### Claim 14 (depends on 12)

The gauge according to claim 12, wherein the at least one spacer comprises a plurality of spacers distributed along the electrodes.

### Claim 15 (depends on 12)

The gauge according to claim 12, wherein the at least one spacer is configured to be slid around and along the electrodes.

### Claim 16 (depends on 12)

The gauge according to claim 12, wherein for the at least one spacer, the two slots are substantially parallel to each other.

### Claim 17 (depends on 12)

The gauge according to claim 12, wherein the electrodes have a curved cross-sectional profile,

### Claim 18 (depends on 17)

The gauge according to claim 17, wherein the cross-section profile is curved with a radius that is at least one of greater than 10 mm and lower than 20 mm.

### Claim 19 (depends on 12)

The gauge according to claim 12, wherein for the at least one spacer, the two slots are substantially straight.

### Claim 20 (depends on 12)

The gauge according to claim 12, wherein each of the slots comprises a main portion and end portions, the end portions having an average width that is less than an average width of the main portion

### Claim 21 (depends on 20)

The gauge according to claim 20, wherein the main portion comprises a central sub-portion with a reduced width.

### Claim 22 (depends on 12)

The gauge according to claim 12, wherein each of the slots comprises a straight neutral axis.

### Claim 23 (depends on 12)

The gauge according to claim 12, wherein each of the slots is elongate and forms a closed contour.

### Claim 24

A spacer for electrodes of a capacitive level gauge, said spacer comprising an element with areas configured for receiving and holding the electrodes, wherein the areas are slots configured for receiving lamellar electrodes; and
wherein each of the slots comprises a main portion and end portions, the end portions having an average width that is less than an average width of the main portion.

### Claim 25 (depends on 24)

The spacer according to claim 24, wherein each of the slots is elongate and forms a closed contour.

### Claim 26 (depends on 24)

The spacer according to claim 24, wherein the main portion comprises a central sub-portion with a reduced width.

### Claim 27 (depends on 24)

The spacer according to claim 24, wherein each of the slots comprises a straight neutral axis.