SEALING VESSEL STRETCHING MAINLY IN PIPE-LIKE MANNER WITH AT LEAST THREE VESSEL SECTIONS Russian patent published in 2010 - IPC H02B13/45 

FIELD: electricity.

SUBSTANCE: invention relates to the field of electric switching devices, namely to creation of vessel sections, which limit pressure-resistant receiving space for them. Sealing vessel (1a, 1b), comprising at least three vessel sections (5, 5a, 5b, 6, 6b, 7, 7a, 7b), stretches along axis (10) and has mainly pipe-like shape. Vessel sections (5, 5a, 5b, 6, 6b, 7, 7a, 7b) are connected to each other at end sides and contain inside receiving space. Inside there is an electric switching device installed (2, 2b). Receiving space in the area of the first vessel section (5, 5a, 5b), connecting the second and third vessel sections (6, 6b, 7, 7a, 7b), has smaller cross section, compared to according cross sections in the area of the second and third vessel section (6, 6b, 7, 7a, 7b).

EFFECT: invention provides for high tensile strength of vessel due to internal pressure with preservation of narrow outer vessel.

11 cl, 5 dwg