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| Number | Title | Issue Date |
| 7715178 | Digital signage replacement module The invention provides a digital signage replacement module. The digital signage has a main circuit board and a plug-board disposed therein and connected to each other. The plug-board has a plug-card with a plug-slot, and a track disposed on each side thereof. The d... | 05/11/2010 |
| 7400493 | Circuit breaking link status detection and reporting circuit Certain embodiments provide a circuit breaking link status and reporting system. The system includes a power source and a circuit breaking link in communication therewith. An electrical outlet is in interruptible power supply communication with the circuit breaking ... | 07/15/2008 |
| 7142410 | Transformer with housing and switch gear A transformer is formed by a housing having a main transformer compartment, a first compartment for the input terminals for the main power supply, a second compartment for the output terminals to supply the load and a third compartment for a manually operable switch... | 11/28/2006 |
| 6917515 | Electrical component having a housing retained in a receiving groove in a support through a retaining device An electrical component has a housing received in a receiving groove, which is confined by opposite lateral walls connected to a groove bottom, formed in a support. A retaining device includes a base extending from one end of the housing and disposed on the groove b... | 07/12/2005 |
| 6111745 | Switchgear conductors and mounting arrangements therefor The interface conductors, stabs and runbacks, which are engaged at first ends by quick disconnects on electrical apparatus in a switchgear assembly, are fabricated from a stacked pair of elongated, flat conductors secured together at the first ends by elo... | 08/29/2000 |
| 5589674 | Metal-encapsulated, gas-insulated switching installation A metal-encapsulated, gas-insulated switching installation is provided with at least one busbar system, the busbar system having an axis separation, and a circuit breaker, the circuit breaker being in the form of a pole and having a pole axis, the circuit... | 12/31/1996 |
| 5578804 | Metal-enclosed gas-insulated switching installation A metal-enclosed, gas-insulated switching installation includes at least two busbar systems and a circuit breaker. Each circuit breaker is in the form of a pole having a pole axis and at least one extinction chamber, installed in a pole housing. The pole ... | 11/26/1996 |
| 5134542 | Three-phase package-type gas-insulated switch gear having isolators being aligned in a first plane and earthing switches disposed laterally side by side on a second plane A gas-insulated switchgear comprises a sealed enclosure filled with an electrically insulating gas, isolators of three phases for making/breaking a main circuit, and earthing switches of the three phases for grounding the main circuit. The isolators and t... | 07/28/1992 |
| 4984131 | Electrical disconnect method and apparatus A disconnect apparatus by which a cryogenic inductor can be both thermally and electrically isolated from a workload and a generator. The disconnect apparatus includes an input disconnect and an output disconnect. The input and output disconnects, when op... | 01/08/1991 |
| 4774628 | Metalclad substation subdivided into tight compartments A metalclad substation having a busbar isolating switch including an operating mechanism housed in the busbar compartment. The movable contacts of the isolating switch are housed in a compartment separated by a tight insulating partition from the busbar c... | 09/27/1988 |
| 4447682 | Isolation shields for a 2500-4000 amp circuit breaker compartment A shield mechanism for isolating line and load stabs within a 2500-4000 ampere circuit breaker compartment is disclosed having a primary operating arm for operating a lower moveable shield and an upper moveable shield interconnected by a reversing bell cr... | 05/08/1984 |
| 4004118 | Metal clad monophase switchgear panels for high voltages and polyphase switching plants consisting of such switchgear panels Metal clad switchgear for high voltages comprising monophase switchgear units, in each of which the circuit-breaker is accommodated in a spherical casing and each isolator connected to the circuit-breaker is provided in a substantially tubular casing whic... | 01/18/1977 |
| 3991348 | Apparatus for controlling access to high voltage metal-enclosed switchgear Disclosed is an apparatus for restricting access to the electrically charged portions within metal enclosed high voltage switchgear. The apparatus is adapted for use with a tool that can be inserted into the enclosure to open a tap switch and remove a ser... | 11/09/1976 |
