Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8080746 | High-voltage circuit breaker and switch arrangement The disclosure relates to an electrical switching device, e.g., a high-voltage switch, with a mantle-side electrical connection. According to the disclosure, an encapsulated angle disconnector is fitted between the mantle-side electrical connection and the outdoor b... | 12/20/2011 |
| 7223928 | Switch with improved protection from ice conditions An arrangement is provided to protect an electrical switch from the deleterious effects of ice formation that inhibits switch operation. In a preferred arrangement, an ice shield is provided that protects the current-carrying contact structures and other operative e... | 05/29/2007 |
| 6678151 | Module for high- and medium-voltage electric station A module comprising: a supporting frame, having a fixed and a movable part; first actuator for wiring the movable part; first and second sets of three insulating posts, arranged on the fixed part along two corresponding rows; first and second disconnectio... | 01/13/2004 |
| 6127637 | Disconnect feature for interrupter A disconnect feature is provided for a circuit interrupter that is conveniently incorporated with the circuit interrupter. The disconnect feature is operable between closed and open positions, providing a visible open gap in the open position. The disconn... | 10/03/2000 |
| 5584379 | Disconnect switch double motion mechanism A double-sided break switch is provided which is operated by a double motion mechanism that rotates the blade about its own axis.... | 12/17/1996 |
| 5313106 | Circuit-parameter sensing device A multi-pole group-operated switch configuration is provided for electrical distribution circuits. The switch configuration includes integral arrangements for sensing circuit parameters and supplying power for a switch operator of the switch configuration... | 05/17/1994 |
| 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 |
| 5103111 | Switch configuration with integral sensing and power supply apparatus A multi-pole group-operated switch configuration is provided for electrical distribution circuits. The switch configuration includes integral arrangements for sensing circuit parameters and supplying power for a switch operator of the switch configuration... | 04/07/1992 |
| 4536822 | Electric circuit interrupter and associated mounting An electric circuit interrupter and associated mounting comprises an elongated support element of insulating material mounted for swinging movement about a fixed pivot and having a pair of movable contacts mounted thereon and engageable with fixedly mount... | 08/20/1985 |
| 4136372 | Protective boot for a high voltage circuit interrupter A protective boot of flexible, insulating material for use in covering the grounded portions of a circuit interrupter and thereby preventing accidental shorting between the current carrying sections of the circuit interrupter and the grounded portions. Th... | 01/23/1979 |
| 4103122 | High voltage grounding switch requiring low operating effort A high voltage grounding switch adapted to ground high voltage power lines or other electrical equipment is provided with a two-part blade having toggle type action, with the toggle joint placed near the hinge pivot. The blade is then rotated from a fully... | 07/25/1978 |
| 4103120 | Auxiliary mechanism for imparting rotational energy to electrical components Disclosed is an auxiliary mechanism for rapidly imparting rotational energy to electrical switch components. An insulator connects an electrical switch component to an output shaft mounted for rotation in the mechanism housing. A lever arm assembly is mou... | 07/25/1978 |
