# US 2009/0260434 A1 · Membrane protection for a sensor having a membrane, and sensor having a membrane and membrane protection

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- Number: US 2009/0260434 A1
- Document ID: US20090260434A1
- Status: Published application
- Kind: A1
- Application number: 12/301,705
- Filed: 2007-06-04
- Published: 2009-10-22
- Earliest claimed: 2006-06-07
- Assignees: Kistler Holding AG
- Inventors: Stefan Brechbuhl; Peter Wolfer
- Web page: https://patentgrep.com/patent/US20090260434A1

## CPC

- G01D 11/245: {Housings for sensors}
- G01L 19/003: {using a detachable interface or adapter between the process medium and the pressure gauge}
- G01L 19/0636: {using particle filters}
- G01D: MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01L: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G)

## Abstract

The invention describes membrane protections for a sensor having a membrane, which membrane protection does not increase the external diameter of a sensor and can be easily removed from a hole in which the sensor is installed. The membrane protection can be fastened to an inner surface of a front region of a sensor using a clip system and thus forms a unit with the sensor. The membrane protection for a sensor which can be screwed into a hole of an installation part and is provided with a membrane in the front region. The membrane protection has a clip system in order to be internally fastened in the front region of such a sensor. The sensor has a membrane protection which is internally fitted to the front region of the sensor using a clip system.

## Claims

### Claim 1

Membrane protection for a front-sealing sensor which may be screwed into a bore of a mounting part and which is provided with a membrane in the front region, the membrane protection comprising: a clip system configured for attachment in the inside of front region of such a sensor.

### Claim 2 (depends on 1)

Membrane protection according to claim 1 for a front-sealing sensor, wherein in the incorporated state, the membrane protection is clipped between sensor and the mounting part in a sealing manner.

### Claim 3 (depends on 1)

Membrane protection according to claim 1, wherein the membrane protection may be attached in the front region of the sensor in a rotary manner.

### Claim 4 (depends on 1)

Membrane protection according to claim 1, wherein a large-area, central aperture is defined for the passage of the information to be measured.

### Claim 5 (depends on 1)

Membrane protection according to claim 1, wherein a plurality of apertures is defined for the passage of the information to be measured.

### Claim 6 (depends on 1)

Membrane protection according to claim 1, wherein the membrane protection consists of a material which tolerates temperatures of up to 500° C.

### Claim 7 (depends on 1)

Membrane protection according to claim 1, wherein the membrane protection exhibits a

### Claim 8

Front-sealing sensor for screwing in into a bore of a mounting part, comprising: a membrane in the front region of the sensor and a membrane protection attached in the inside at the front region by means of a clip system.

### Claim 9 (depends on 8)

Front-sealing sensor according to claim 8, further comprising a groove defined in the inside of front region for engaging the clip system.

### Claim 10 (depends on 8)

Front-sealing sensor according to claim 8, wherein the diameter of the membrane protection does not exceed the diameter of the front region of the sensor.

### Claim 11 (depends on 8)

Front-sealing sensor according to claim 8, wherein in the incorporated state the membrane protection is clipped between sensor and the mounting part in a sealing manner.

### Claim 12 (depends on 3, 8)

Front-sealing sensor according to claim 8, wherein the membrane protection is a membrane protection according to claim 3.

### Claim 13 (depends on 4, 8)

A front-sealing sensor according to claim 8, wherein the membrane protection is a membrane protection according to claim 4.

### Claim 14 (depends on 5, 8)

A front-sealing sensor according to claim 8, wherein the membrane protection is a membrane protection according to claim 5.

### Claim 15 (depends on 6, 8)

A front-sealing sensor according to claim 8, wherein the membrane protection is a membrane protection according to claim 6.