Patent · US Active

Vibration limit switch system

US9087651B2 · kind B2 · utility

0Cited by

2References

26Claims

0Family size

Assignee

VEGA Grieshaber KG · DE

Inventors

Martin Mellert · Steinach, DE
Joern Jacob · Kirnbach, DE
Holger Gruhler · Tuningen, DE

Key dates

Filing date	Nov 7, 2012
Grant date	Jul 21, 2015
Priority date	—
Expiry date	Aug 6, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/42
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A vibration limit switch system and related method is provided with a piezoelectric transmitting- and/or receiving unit, in operable connection with a membrane that can be put in oscillation, and a mechanical oscillation arrangement that is coupled to the membrane, whereby the piezoelectric transmitting- and/or receiving unit is adhered directly, or via an adaptation layer by an adhesive layer, to the membrane 4. In this improvement, the adhesive layer between the membrane and the transmitting-and/or receiving unit or the adaptation layer has a thickness in an edge area R which thickness is elevated in comparison to a central area Z. This thickness is arranged in differing geometries and amounts to further improve performance.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.