Patent · US Active

Draw-rod bushing with sealed bottom contact

US12142392B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

Hitachi Energy Ltd · CH

Inventors

Fredrik Graas · Nordstraße, SE
Jesper Calpson · Ludvika, SE
Alejandra Ravanal · Smedjebacken, SE
David Emilsson · Ludvika, SE
Peter Sjöberg · Ludvika, SE
Zoltan Repasi · Västerås, SE

Key dates

Filing date	Nov 20, 2020
Grant date	Nov 12, 2024
Priority date	—
Expiry date	Feb 12, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH02G15/04
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present disclosure relates to a bushing comprising a conductor tube, a support tube, arranged within the conductor tube, a draw-rod configured to run through the support tube, and a contact arrangement arranged to be drawn into the conductor tube by the draw-rod. The contact arrangement comprises a sealing plug arranged for sealingly engaging an inside wall of the conductor tube to prevent liquid from passing the sealing plug into the conductor tube.

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