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US 4,133,994 AGranted
Cell of low-voltage feed and distribution cellular switchboard
AssigneesDelle-Alsthom, Unelec
InventorsPaul Rozier, Jean Granson
Life of this patent
Estimating the term…
Abstract
Cell of low-voltage feed and distribution cellular switchboard, characterized in that it comprises, superimposed one above the other, horizontal metallic casings enclosing switching devices and functional units connected therewith.
Claims9
A cell of low-voltage supply and distribution cellular switchboard comprising metallic casings stacked one above the other, switching devices enclosed by each of said casings, said metallic casings each comprising:
- bolted spacing elements, and metallic sheets with venting perforations, said sheets folded and fixed together at intervals by said bolted spacing elements by means of the bolts passing through the venting perforations of said metallic sheets.
Dependencies are inferred from the claim text.