Patent ID: 7816603

Claim:
A gas-tight capsule housing, comprising: at least three housing sections, including a first housing section, a second housing section, and a third housing section, and extending along an axis in a substantially tubular manner; said first housing section being flanged between and connecting said second and third housing sections; said housing sections forming a boundary of a pressure-tight receiving chamber for an electrical switching device, said receiving chamber having a smaller cross section in a region of said first housing section than respective cross-sections of said receiving chamber in a region of said second and third housing sections; and a flange joint for flanging one of said second and third housing sections onto said first housing section, said flange joint having a flat face flange on said first housing section, which is pressed onto a face of said second or third housing section by way of a releasable joining element, and wherein a wall of said second or third housing section is relatively thicker in a region of said face and the thickened area is formed at least partially radially inward, thereby reducing the cross section of the receiving chamber.