Patent · US Expired

Switching element cast into an insulating compound and method of making the same

US5890586A · kind A · utility

2Cited by

4References

10Claims

0Family size

Assignee

Cherry Mikroschalter GmbH · DE

Inventors

Siegbert Adelhardt · Pottenstein, DE
Helmut Brunnhuber · Zwingenberg, DE
Wilfried Pohner · Hersbruck, DE
Stefan Gebhardt · Weidenberg, DE

Key dates

Filing date	Oct 14, 1997
Grant date	Apr 6, 1999
Priority date	—
Expiry date	Oct 14, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49105
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In a resin-embedded switching element provided with a casting containment, which encloses an area of the switching element to be covered by a resin, the casting containment has a fill hole consisting of a blind bore having at its inner end a diaphragm which is sufficiently thin that it can be ruptured by casting resin supplied to the fill hole under pressure and a measuring opening is formed in the top of the casting containment through which air can escape during filling of the casting containment with liquid casting resin and the level of the casting resin in the casting containment can be controlled.

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