Patent · US Active

Explosion-proof pressure-tight housing for electrical operating devices

US11706880B2 · kind B2 · utility

0Cited by

7References

9Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Christian Haag · Assamstadt, DE
Ralf Huck · Großkrotzenburg, DE

Key dates

Filing date	Dec 21, 2018
Grant date	Jul 18, 2023
Priority date	—
Expiry date	Dec 13, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH02G3/088
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An explosion-proof pressure-tight housing for electrical operating device has a rigid lower shell and an elastic upper shell terminating the lower shell in the manner of a cover, wherein the lower shell includes a base, preferably formed as a rounded rectangle, and also includes side walls, the outer surfaces of which are inclined inwardly by an acute angle, where the elastic upper shell has a cover base and side walls, which are splayed outwardly at the angle, the inside width of the upper shell is smaller than the outside width of the lower shell, and the upper shell is pressed with the lower shell such that a flameproof gap is formed between the side walls of the upper shell and the side walls of the lower shell.

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