Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1982-10-25
1984-09-18
Pellinen, A. D.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200147R, H01H 930
Patent
active
044726139
ABSTRACT:
At the underside of a substantially U-shaped support or carrier formed of steel there is affixed an intermediate element or part formed of an electrically conductive material, for instance copper or a copper alloy. This intermediate element carries at its bottom face or surface two contact supports or members formed of a suitable material, for instance AgCdO. At the ends or end faces of the U-shaped support there are attached arc conducting elements formed of a ferromagnetic material, for instance steel. The arc conducting elements protrude away from the base portion of the U-shaped support in the direction of the contact supports and extend laterally thereof up to the region of their contact surfaces. The arcs arising during contact opening directly transfer or shift from the contact surfaces to the arc conducting elements, without the arc base points migrating laterally from the contact supports to their connection locations. The contact supports or members as well as their connection locations are thus protected against destruction by the arcs.
REFERENCES:
patent: 2340682 (1944-02-01), Powell
Chaudhuri Purnendu
Klepp Hilmar
Koller Peter
Luthy Hans
Ginsburg Morris
Kleeman Werner W.
Pellinen A. D.
Sprecher & Schuh AG
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