Class 218/126 - Auxiliary

Subclass of Class 218 - High-voltage switches with arc preventing or extinguishing devices
Definition: Subject matter including additional contacts located between
No. of patents: 21
Last issue date: 03/15/2011

Number	Title	Issue Date
7906742	Vacuum interrupter chamber and contact arrangement for a vacuum circuit breaker The invention relates to a contact arrangement for a vacuum interrupter chamber (1), which comprises a pair of inner contact pieces (11, 12), configured as RMF contact pieces, and a pair of outer contact pieces (21, 22) which are connected in pa...	03/15/2011
4892986	Vacuum circuit breaker An electrode of a vacuum circuit breaker includes a support electrode, an auxiliary support electrode of Co soldered to the support electrode, and an electric contact portion composed of a sintered porous body of Co sintered to the auxiliary support elect...	01/09/1990
4386249	Vacuum circuit interrupter with auxiliary contact for plural arc path device with arc rotating means associated with the primary and auxiliary contacts A vacuum circuit interrupter with primary cup shaped arcing contacts with integral means for arc movement. An auxiliary, generally cylindrical arc contact is spaced about the primary contacts by a dimension less than the spacing between the opened primary...	05/31/1983
4345126	Vacuum interrupter with transfer-type axial magnetic field contacts A vacuum interrupter contact structure in which central butt-type contacts serve as the load current carrying contacts with low resistive losses. Annular transfer arcing contacts are disposed coaxial about the butt-type contacts, with the arc which forms ...	08/17/1982
4320269	Vacuum interrupter with increased separation of functions The invention provides a vacuum interrupter with improved separation of functional elements. The interrupter includes separable contacts for carrying continuous current and rod electrode arrays for carrying fault currents. The housing for the interrupter ...	03/16/1982
4270034	Puffer type circuit interrupter A circuit interrupter comprises a pair of contacts which can be relatively moved to be detouchable in a fluid for arc extinction; a pressure chamber which is connected to an arc space to contain the fluid for arc extinction whose pressure is raised in the...	05/26/1981
4250363	Electrical circuit breaking device and method An electrical circuit breaking device adapted for connection in circuit with an electrical conductor for interrupting the current passing through the latter is disclosed herein. This device includes an arrangement of larger and smaller electrode contactin...	02/10/1981
4246458	Vacuum interrupter In a vacuum interrupter of the type comprising a vacuum vessel and a pair of separable main electrodes located in the vacuum vessel, at least one of the main electrodes being provided with a coil electrode for generating an axial magnetic field, the vacuu...	01/20/1981
4233480	Low voltage vacuum switch with three internal contacts including a center floating contact A low voltage, high continuous current dc vacuum switch has at least three internal contacts, including an electrically floating center contact and two movable end contacts. The multiple contacts provide electrically serial multiple arc paths so that the ...	11/11/1980
4128748	High-current vacuum switch with reduced contact erosion In high-current vacuum switch devices wherein the arc must transfer from the contacts to auxiliary electrodes, excessive contact erosion can be avoided by making this transfer occur as quickly as possible. Rapid transfer is facilitated by fabricating the ...	12/05/1978
4107496	Vacuum switching apparatus with double interruption and including an interposed barrier In vacuum switching apparatus for interconnecting a bus bar to a feeder cable and selectively connecting the bus bar and feeder cable to ground, a first vacuum switching path within a housing is connected to a bus bar and a second vacuum switching path wi...	08/15/1978
4086459	Rod array vacuum switch for high voltage operation A vacuum switch for high voltage operation includes a fixed gap structure comprised of two rod array assemblies in series cascade within the same vacuum envelope, along with a single break butt contact electrode assembly, wherein the movable contact, upon...	04/25/1978
4081640	Compact vacuum switch for high voltage circuit interruption High interruption voltage capability within a vacuum switch of limited physical size is achieved by combining a diffuse arc electrode structure with provision for retracting one or both of a pair of movable butt contacts into an approximately field-free r...	03/28/1978
4072838	Electrical power switch with pressurized gas blasting device for lengthening the switching arc An electrical power switch operating with a pressurized gas for actuating the switch contacts and also providing a quenching action in which the arc is lengthened and extinguished includes a container in which the pressurized gas is stored, the outlet fro...	02/07/1978
4041261	High current capacity rod array vacuum arc discharge device A vacuum arc discharge device comprises a rod array structure of interdigitated, continuous current-carrying electrodes and arc electrodes, with an assembly of movable contacts near one end of the device respectively coupled to the continuous current-carr...	08/09/1977
4029921	Vacuum-type circuit interrupter with two sets of contacts electrically in parallel A vacuum-type circuit interrupter comprises two pluralities of rod electrodes positioned to form a ring of electrodes in which the electrodes of the first plurality interleave with those of the second plurality and are spaced circumferentially of the ring...	06/14/1977
4027125	Gas insulated circuit breaker A single pull rod mechanism for actuating the contacts of each phase of a three-phase gas insulated circuit breaker arrangement utilizes acceleration springs only in relation to the second and third phases. Contact parting velocity is measured externally ...	05/31/1977
4010338	Vacuum switch having axially disposed switching elements A vacuum switch having a housing within which there are arranged axially oriented switching elements and fixedly mounted sheet metal or plate electrodes, wherein between the axially aligned sheet metal members thereof there are left free gaps or spaces an...	03/01/1977
3996438	Vacuum-type circuit interrupter with two sets of contacts electrically in parallel A vacuum-type circuit interrupter comprises two pluralities of rod electrodes positioned to form a ring of electrodes in which the electrodes of the first plurality interleave with those of the second plurality and are spaced circumferentially of the ring...	12/07/1976
3969598	Vacuum-type circuit interrupter with a plurality of sets of contacts in parallel This vacuum-type circuit interrupter comprises a plurality of pairs of separable contacts located within an evacuated envelope and electrically connected in parallel. The movable contact of each pair is mounted on a long, slender contact rod through which...	07/13/1976
3965318	Contact arrangement for an electric pressure gas power circuit breaker A contact arrangement for an electric pressure-gas circuit breaker for interrupting an electric current includes two stationary contact pieces disposed so as to conjointly define a gap therebetween. A follower contact is arranged on one of the contact pie...	06/22/1976

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Class 218/126 - Auxiliary