Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7956306 | High-voltage switch with a metal container filled with insulating gas A high-voltage switch has a metal container filled with insulating gas, and a quenching chamber installed in the container. The quenching chamber contains a housing which is aligned along an axis, an arcing contact arrangement which is held in the housing, an exhaus... | 06/07/2011 |
| 6919785 | Pressure sensitive trip mechanism for a rotary breaker A pressure sensitive trip mechanism for actuating a circuit breaker operating mechanism to trip a circuit breaker includes a trip lever and a trip bar. The trip lever is rotatable about a first pivot. The trip bar is positioned proximate the trip lever. The trip bar... | 07/19/2005 |
| 5850065 | Gas circuit breaker A dielectric gas produced at the time of current interruption is exhausted into an exhaust structure 1 through an opening 8 formed on a fixed-side support member 6 combined with a fixed arcing contact 4. The exhaust structure 1 has an enlarged portion wit... | 12/15/1998 |
| 5616898 | Medium-voltage or high-voltage circuit-breaker A medium-voltage or high-voltage circuit-breaker including, in a casing filled with a dielectric gas, an interrupting chamber in which metal plates are disposed for splitting up an electric arc into a multitude of smaller or "elementary" arcs under the ac... | 04/01/1997 |
| 5347097 | Electrical circuit breaker with rotating arc and self-extinguishing expansion An arc extinguishing chamber of a pole of an electrical circuit breaker having rotating arc device, the extinguishing chamber operating by self-extinguishing expansion, includes an elongated housing sealed off at both ends by end plates. Coaxially inside ... | 09/13/1994 |
| 5057655 | Electrical circuit breaker with self-extinguishing expansion and insulating gas An inside of tubular contacts of a self-extinguishing expansion SF6 -gas circuit breaker including guiding ribs arranged to oppose any vortex-effect swirling gas flow between a first extinguishing chamber and a second expansion chamber. The pre... | 10/15/1991 |
| 5001313 | Rotating arc circuit breaker with centrifugal extinguishing gas effect A rotating arc circuit breaker comprising a pair of separable arcing contacts, a coil to set the arc in rotation, and an annular migration electrode. Guiding fins are arranged in the extinguishing chamber to slow down the rotation of the gas in a first pe... | 03/19/1991 |
| 5001314 | High tension circuit-breaker having a dielectric gas under pressure A high tension circuit breaker having a dielectric gas under pressure, the circuit breaker being of the type including at least one interrupting chamber comprising an insulating shell filled with the gas and containing a fixed assembly including a fixed m... | 03/19/1991 |
| 4900882 | Rotating arc and expansion circuit breaker A circuit breaker with expansion and rotating arc in sulphur hexafluoride comprising a metal breaking chamber supporting a stationary main contact capable of cooperating with a movable main contact. The breaking chamber comprises an insulating end plate a... | 02/13/1990 |
| 4698468 | Sulphur hexafluoride circuit breaker usable at very low outside temperatures A sulphur hexafluoride circuit breaker usable at very low outside temperatures, the circuit breaker comprising: a sealed enclosure containing a fixed contact assembly and a moving contact assembly; a drive rod for driving the moving contact assembly, said rod ... | 10/06/1987 |
| 4689453 | Gas-blast switch A switch, preferably for switching medium voltages, includes a structure which creates a gas-blast to quench an arc drawn between two separating contact pieces of the switch. The gas-blast is created solely by the quenching gas which is heated by the arc,... | 08/25/1987 |
| 3940582 | Mechanically operated gas blast circuit interrupter having gastight enclosures Gas-blast circuit interrupter of the puffer type comprising sealed compressed-gas filled arc-extinguishing chambers and support insulators. The enclosures of the chambers and of the support insulator thereof are traversed by control rods which operate the... | 02/24/1976 |
