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| Number | Title | Issue Date |
| 7804033 | Disconnector for an electrical substation handling voltages in excess of 1100kV The present invention is mainly directed to a disconnector for an electrical substation for very high voltage in excess of 1100 kV, of the horizontal displacement type comprising a first moving part (2) and a second moving part (4), the said first movi... | 09/28/2010 |
| 6984795 | Center break switch with reduced opening force requirement A switch has respective open-assist bars fixed to switch blades near the switch contacts. The bars are arranged so that, as the blades are turned by rotation of their supports, the bars come together and serve as a fulcrum mechanism that provides a prying action hel... | 01/10/2006 |
| 5359167 | Whip for a high tension section switch A whip usable in a high tension section switch, in particular a vertically-opening switch, the whip comprising a flexible metal rod whose section is a truncated circle whose area diminishes progressively from the base of the whip to its tip.... | 10/25/1994 |
| 5293012 | Disconnecting switch A disconnecting switch with improved contacts in the form of a spool contact having one or more circumferential V-grooves and a finger contact having fingers which are provided internally with spring members for maintaining contact pressure. Spaced plasti... | 03/08/1994 |
| 4481387 | Voltage isolater switch with pivoted contact assemblies A high voltage isolator switch of the double end break type including a central, rotatable insulator carrying a switch blade and a pair of opposed insulators bearing contact assemblies for engaging the ends of the blade. The contact assemblies include piv... | 11/06/1984 |
| 4351989 | Disconnect switch for metal-encapsulated high-voltage switching installations A disconnect switch for use in a metal-encapsulated high-voltage switching installation, wherein the switch includes a movable switching pin, a mating contact axially associated therewith, and a cylindrical member arranged in surrounding spaced relationsh... | 09/28/1982 |
