Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7368679 | Arrangement comprising a low voltage power switch and a switching gas damper provided with a carrier element and used for the low voltage power switch A switching gas damper is for low voltage power switches, especially for low voltage power switches which can be inserted into low voltage switching installations. The switching gas damper is arranged above an arc extinguisher of the low voltage power switches and i... | 05/06/2008 |
| 7305335 | Permanent three-pole independent pole operation recloser simulator feature in a single-pole trip capable recloser control Disclosed is a permanent recloser simulator feature for use in a single-pole trip capable recloser control. The permanent recloser simulator feature includes a first logic circuit capable of enabling and disabling operation of the permanent recloser simulator featur... | 12/04/2007 |
| 7116123 | Contact probe, probe socket, electrical characteristic measuring device, and method for pushing the contact probe against object to be measured A contact probe includes a probe tip and a damper. The probe tip includes a first barrel, a probe pin, and a first spring. The first barrel has a cavity with a bottom, an opening being disposed in a first end of the first barrel and the bottom being disposed at a se... | 10/03/2006 |
| 6960736 | Switching gas damper for low-voltage power circuit breakers A switching gas damper for low-voltage power circuit breakers, is arranged as an attachment above the arcing chambers for additional damping, deionization and cooling of the switching gases. The switching gas damper includes a cuboid enclosure with separate inlet op... | 11/01/2005 |
| 6930271 | Circuit interrupter including linear actuator and manual pivot member A power circuit interrupter includes a housing having an opening, one or more vacuum interrupters including separable contacts, and an operating mechanism, supported by the housing, adapted to open and close the contacts. A linear actuator cooperates with the operat... | 08/16/2005 |
| 6927356 | Enclosed switchgear In a switchgear, oscillation of a moving current-carrying shaft and a moving contact of a vacuum valve is minimized, offset load on the contact surface is reduced, and friction the portion supporting the moving current-carrying shaft is reduced. A vacuum valve is di... | 08/09/2005 |
| 6917269 | Low-voltage circuit breaker with an electric arc extinction system An electric arc extinction chamber system, especially for low-voltage circuit breakers of very high nominal current intensities, wherein parallel electric arc extinction chamber inserts are provided in a housing extending over the entire width of a pole-face arc. Th... | 07/12/2005 |
| 6797909 | High-voltage loadbreak switch with enhanced arc suppression A high-voltage loadbreak switch operates submersed in a dielectric fluid and may be configured to switch one or more phases of power using one or more phase switches. Each phase switch may include first and second stationary contacts. The first stationary contact ma... | 09/28/2004 |
| 6686553 | Three-phase encapsulated high-voltage circuit breaker for outdoor use A three-phase encapsulated high-voltage circuit breaker for outdoor use, whose interrupter units are arranged in a tubular switch housing which is arranged horizontally. Phase connections of the interrupter units are passed vertically and together through... | 02/03/2004 |
| 6437276 | Horizontally positioned, encapsulated high-voltage circuit breaker A three-phase-encapsulated high-voltage circuit breaker, arranged horizontally and with a compact construction, is intended to have as small a physical height as possible and to require as small an installation area as possible. To this end, the tubular s... | 08/20/2002 |
| 6335502 | Vacuum switch and vacuum switch gear using the vacuum switch In order to provide a vacuum switch suitable for a distribution and transformation system compatible between structural simplicity and reliability and a vacuum switchgear using the vacuum switch, the vacuum switch comprises switching portions installed in... | 01/01/2002 |
| 6291786 | High-voltage circuit breaker having an interrupter module A high-voltage circuit breaker that has a grounded enclosure and an interrupter module arranged in the grounded enclosure. The interrupter module has short pipe connections and bushings mounted on them to accommodate connecting leads. The current converte... | 09/18/2001 |
| 6248971 | Circuit breaker with parallel connected pole compartments A circuit breaker comprises a plurality of pole compartments juxtaposed inside an insulating case, in each of which compartments there are arranged an arc extinguishing chamber and at least one pair of separable contact parts comprising at least one movab... | 06/19/2001 |
| 6207916 | Electric arc explosion chamber system An arcing chamber system having one or more chamber bodies connected in series, wherein one or more arcing chamber modules, are arranged in each chamber body is present. A plurality of arcing chamber modules may be employed to achieve for various contact ... | 03/27/2001 |
| 6198062 | Modular, high-voltage, three phase recloser assembly In accordance with the present invention, a recloser assembly including three modular recloser units operating under the control of a controller. The recloser units are interchangeable and are suitable for use in a three phase power distribution system wh... | 03/06/2001 |
| 6194984 | Movable contact assembly for an electrical contactor A movable contact assembly for contactors and similar devices includes a movable spanner or conductive element biased toward a conducting position by a biasing element. A housing partially surrounds the conductive element and the biasing element. The bias... | 02/27/2001 |
| 6175486 | Switch gear for medium voltage with separately connectable multiple phases The invention relates to switch gear comprising at least one group of n power switches (4), which extend substantially in a longitudinal direction perpendicular to the front of the switch gear, at least one busbar compartment (13,13') containing n busbars... | 01/16/2001 |
| 6034586 | Parallel contact circuit breaker A parallel pole magnetohydraulic circuit breaker, having a single trip element and a pair of trip mechanisms, achieving an increased current carrying capacity with reduced nuisance trips. The trip mechanisms are contained within separate housings, with el... | 03/07/2000 |
| 5945650 | Polyphase rotary switch including arc chamber system with arc grids, line shields and baffles A multi-phased switch support base including a molded top cover and a molded bottom base each having interior and exterior walls which divide the interiors. When assembled together the base is divided into compartmentalized arc chambers which function to ... | 08/31/1999 |
| 5920052 | Multi-circuit switch gear A multi-circuit switch gear includes a main body filled with an insulation gas, main bushings mounted on a front portion of the main body, a plurality of three-phase input/output units connected to the main bushings, multi-position switching devices dispo... | 07/06/1999 |
| 5281776 | Multipole circuit breaker with single-pole units A low voltage multipole circuit breaker having a double housing, each pole including a single-pole breaking unit having a parallelepipedic plastic box having two extended side faces. Contacts are further provided and are associated with an extinguishing c... | 01/25/1994 |
| 4935589 | Arc extinction chamber unit in a multipolar circuit breaker There is disclosed an arc extinction chamber unit for assembly into a multipolar circuit breaker. This chamber unit is composed of arc extinction chambers provided one for each pole, and coupling arms for connecting the chambers to each other. The chamber... | 06/19/1990 |
| 4791530 | Insulating barrier system for switchgear A barrier system is provided for electrical switchgear having an enclosure and one or more access openings. The barrier system comprises a plurality of barriers, each of which is a generally planar member. The barrier system further includes manually oper... | 12/13/1988 |
| 4742423 | Gas insulated apparatus A gas insulated apparatus for high voltage, 3-phase applications in which an insulating, self-arc-extinguishing gas separates the high voltage lines from grounded vessels. According to the invention, the transverse impedance of the vessels is chosen so th... | 05/03/1988 |
| 4689716 | Modular barrier assembly A barrier for use in electrical terminal cabinets includes a set of barrier guides permanenty affixed to the rear of the cabinets and a set of inwardly extending support rails mounted to the sidewalls of the cabinet. A modular barrier assembly slidably en... | 08/25/1987 |
| 4490593 | Arrangement for arc transfer in high amperage molded case circuit breaker Arc control in a high amperage molded case circuit breaker is provided by a steel horn for each of a plurality of contact blades for each phase. The horn has a portion extending into a U-shaped recess in a steel arc runner plate. As the contacts separate,... | 12/25/1984 |
| 4471183 | Three-phase switchgear A switchgear apparatus having three switching gaps with contacts arranged thereacross for connecting three-phase electrical power to a consumer. Apparatus is described whereby a selected one of the switching gaps closes earlier than the other switching ga... | 09/11/1984 |
| 4302643 | Fusible switch The following specification describes a fusible switch assembly having a thermoplastic base supporting a plurality of pivotal knife blades. A one piece thermoplastic arc suppressor housing common to a plurality of phases is also described together with ar... | 11/24/1981 |
| 4184058 | Polyphase isolator switches A polyphase, e.g. three phase, isolator switch, of which the movable contact members of all phases extend through a common bushing insulator mounted in a partition between two compartments for rotation about an axis normal to said partition and are simult... | 01/15/1980 |
| 3958095 | Disconnect switch A three-pole disconnect switch includes a crossbar which is rotatably mounted to a housing and pivots three movable contact blades between opened and closed positions. Each movable contact blade is removably mounted to the cross-bar and makes slidable ele... | 05/18/1976 |
