Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7948736 | Balance transformer and backlight apparatus The invention provides a balance transformer and a backlight apparatus using the same. The balance transformer comprises a first main coil, a second main coil, a first induction coil, and a conductor. The first main coil has a first contact point and a second contac... | 05/24/2011 |
| 7312550 | Architecture for electric machine In one aspect, an alternator is described which includes a current control apparatus including a stator winding and a control winding, wherein current control in the control winding regulates the stator winding. In another aspect, a gas turbine engine includes a mul... | 12/25/2007 |
| 7145421 | Device for supplying an electronic protection device to be used in a low-voltage circuit breaker A supply device (1) for an electronic protection device to be used in a low-voltage circuit breaker. The supply device basically comprises a primary conductor (11), a secondary winding (12), a first magnetic circuit (10), and at least one... | 12/05/2006 |
| 7142082 | Electromagnetic device and high-voltage generating device and method of producing electromagnetic device An electromagnetic device and a high-voltage generating device which are thin with improved characteristics includes a magnetic core of a cylindrical form of a ferrite material having a high intrinsic resistance. A winding is provided by winding a flat rectangular w... | 11/28/2006 |
| 6801421 | Switchable flux control for high power static electromagnetic devices A high power static electromagnetic device with a flux path, a main winding and one or more regulation windings surrounding portions of the flux path. A control device is coupled to the flux path for selectively admitting the flux therein. In an exemplary embodiment... | 10/05/2004 |
| 6650529 | Inductor and method of manufacturing same An inductor includes a bar-shaped ferrite core and a spiral coil. The spiral coil is formed by removing a portion of a conductive film formed at least around the peripheral surface of the ferrite core. The surface of the ferrite core is impregnated with a... | 11/18/2003 |
| 6184459 | Vegetable oil based dielectric coolant A transformer is disclosed, including a tank housing a transformer core/coil assembly, a dielectric insulating fluid surrounding the core/coil assembly, the fluid comprising a vegetable oil, an antioxidant dissolved in the oil, and a low temperature addit... | 02/06/2001 |
| 5788854 | Methods for fabrication of thin film inductors, inductor networks, inductor/capactor filters, and integration with other passive and active devices, and the resultant devices The fabrication of thin film inductors on a substrate, which may include thin film resistors, thin film capacitors, and semiconductor devices. In one embodiment an inductor is fabricated initially on a substrate and then integrated with other devices subs... | 08/04/1998 |
| 5770996 | Transformer system for power line communications A transformer system couples a control panel with a power line to support two-way communications over the power line. A first transformer steps-down the power line voltage, supplying power to the control panel. A second transformer and associated capacito... | 06/23/1998 |
| 5697352 | Ignition apparatus for internal combustion engine In an ignition apparatus for an internal combustion engine, to reduce the size of the apparatus and improve the layout property for mounting the apparatus and a radiating property of the apparatus, a primary coil 2 and a secondary coil 4 are concentricall... | 12/16/1997 |
| 5692482 | Ignition coil for internal combustion engine Wirings on the low-tension side which are comprised of a terminal connected to a primary winding, terminals of an electronic component, and terminals of connectors electrically connected to external devices are formed as a unit by means of a molding and f... | 12/02/1997 |
| 4494167 | Inductor An inductor included as part of a pulse width modulation amplifier is formed by four coils 9A, 9B, 9C and 9D arranged alongside each other and connected in parallel. The coils are supported against electromotive forces tending to pull them together by ins... | 01/15/1985 |
| 4489361 | Horizontally compact substation This invention deals with a substation in which one terminal of a breaker which consists of breaking sections elevationally contacted and separated is electrically connected to a transformer, said breaker is contained in an insulator which is substantiall... | 12/18/1984 |
