Membrane protection for a sensor having a membrane, and sensor having a membrane and membrane protection

• US 8,122,765 B2
• Filed: 06/04/2007
• Issued: 02/28/2012
• Est. Priority Date: 06/07/2006
• Status: Active Grant

• Current Assignee: Kistler Holding AG
• Original Assignee: Kistler Holding AG
• Inventors: Brechbühl, Stefan, Wolfer, Peter
• Primary Examiner(s): NOLAND, THOMAS
• Application Number:
  US12/301,705
• Publication Number:
  US 20090260434A1
• Time in Patent Office: 1,730 Days
• Field of Search: 734/31, 737/06, 734/321, 738/665, 381/189
• US Class Current: 73/431
• CPC Class Codes: G01D 11/245 Housings for sensors
• CPC Class Codes: G01L 19/003 using a detachable interface or adapter between the process medium and the pressure gauge
• CPC Class Codes: G01L 19/0636 using particle filters

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

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 a front region, the membrane protection comprising:

a clip system configured for attachment in the inside of the front region of such a sensor.

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

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

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

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

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

C.

7. Membrane protection according to claim 1, wherein the membrane protection exhibits a surface coating.

8. Front-sealing sensor for screwing in into a bore of a mounting part, comprising:

a membrane in a front region of the sensor and a membrane protection attached in the inside at the front region by means of a clip system.

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

10. 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.

11. 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.

12. Front-sealing sensor according to claim 8, wherein the membrane protection is attached in the front region of the sensor in a rotary manner.

13. A front-sealing sensor according to claim 8, wherein a large-area, central aperture is defined in the membrane protection for the passage of the information to be measured.

14. A front-sealing sensor according to claim 8, wherein a plurality of apertures is defined in the membrane protection for the passage of the information to be measured.

15. A front-sealing sensor according to claim 8, wherein the membrane protection consists of a material which tolerates temperatures of up to 500°

C.