Class 218/36 - Arc runner (e.g., arc horn)

Subclass of Class 218 - High-voltage switches with arc preventing or extinguishing devices
Definition: Subject matter including one of a pair of diverging electrodes
No. of patents: 31
Last issue date: 11/16/2010

Number	Title	Issue Date
7834290	Protection switch A protection switch, particularly for rapid quenching of electrical arcing, includes at least one single-pole protection switch module having a housing, a movable contact mounted on a switching arm for pivoting against a fixed contact between a closed position and a...	11/16/2010
7220933	Arc quenching device for circuit breakers The present invention specifies an arc quenching device having improved current limitation and reduced heat losses, in the case of which a moving contact piece (31) is not subject to increased erosion and wear. For this purpose, a quenching path according to ...	05/22/2007
7067758	Electric power circuit breaker comprising a connecting bar and an arcing horn An electric power circuit breaker includes a connecting bar against which an arcing horn rests with an attaching limb. The connecting bar extends through an opening of a rear wall of the housing. In order to connect the arching horn to the connecting bar, a projecti...	06/27/2006
6958671	Electrical contactor with positive temperature coefficient resistivity element The present invention provides an electrical contactor for connecting and disconnecting an electrical power source to an electrical device wherein the electrical power source is electrically connected to a line terminal having a line terminal electrical contact and ...	10/25/2005
6103986	Circuit breaker including bridging contact with magnetic structure A U-shaped magnetic plate is positioned on the side of a movable contact shoe opposite to a fixed contact shoe, and the tips of the respective legs of the magnetic plate face via a gap the movable contact shoe in a closed condition of the movable contact ...	08/15/2000
6100490	Circuit breaker for low tension with connecting bars A low-voltage circuit breaker has an enclosure with a rear wall and a front part, in which there is a switching contact system with connecting bars. Each of the connecting bars has a web arranged transversally to the longitudinal direction of the connecti...	08/08/2000
6023035	Electric circuit breaker with means for adjusting the contacts Electric circuit breaker with means for adjusting the contacts comprising, for each electric phase, moving levers having main contacts and arc-breaking contacts co-operating with main contacts and arc-breaking contacts provided on a terminal bar there bei...	02/08/2000
5877467	Circuit breaker current limiting arc runner A circuit breaker is equipped with a current limiting arc runner for effective overcurrent interruption without additional heating under quiescent operating conditions. Upon contact separation, an arc is drawn with the endpoints of the arc being initially...	03/02/1999
5834724	Circuit breaker with grid support mounted over stationary contactor In a circuit breaker, a grid support (12) having a pair of side walls (12a) which are confronted with each other, is provided by molding resin, and arc-extinction grids (6) are inserted into grooves formed in the side walls (12a). The grid support is fixe...	11/10/1998
5818003	Electric switch with arc chute, radially converging arc splitter plates, and movable and stationary arc runners A contactor for switching electric current has a stationary contact and a movable contact which when driven by a solenoid moves into and away from abutment with the stationary contact. An arc chute includes a plurality of splitter plates which extend radi...	10/06/1998
5777286	Electric device having separable contacts with arc switching An electrical device for switching an arc to a path parallel to a device to be protected. The electrical device includes double breaking contacts and an arc transfer electrode associated with the parallel path. The parallel path shunts the double breaking...	07/07/1998
5744772	Molded case circuit breaker with arc suppressant features including magnetically permeable arc horn mounted on the contact arm An electromagnetic circuit breaker is provided with a copper plated arc horn on the top side of the movable contact arm opposite the movable contact. The horn extends beyond the movable contact and has an upturned sweep so as to enhance migration of the e...	04/28/1998
5569894	Circuit breaker arc quenching device with venting structure including flapper valve An arc quenching device for a circuit breaker having a stationary contact member and a moving contact member includes a magnetic element formed of an arc quenching core and a base plate. The arc quenching core includes a back wall, and two side walls exte...	10/29/1996
5495083	Electric switch device with separable contacts including fixed contact mounted current limiter and shunt conductor An electrical switch device with separable contacts is provided with a shunt conductor adapted to receive one end of the arc that is struck when the contacts separate after it has jumped a dielectric gap. The shunt conductor determines an interim arc curr...	02/27/1996
5493091	High voltage circuit breaker contact structure including ionization slot and secondary arcing features An electromechanical switch of the contactor or circuit-breaker type with adjacent contacts, which are provided on respective mobile and fixed contact parts. This arrangement defines a narrow ionization slot which is maintained at the start of contact ope...	02/20/1996
5475193	Arc quenching chamber including gas generating stationary contact insulation and improved arc runner The low-voltage switch includes a stationary contact (2) and a moving contact (3). The two contacts and an arc splitter stack (6) are arranged in an arc quenching chamber (5). An elongation element (14) is fitted on the stationary contact (2), extends in ...	12/12/1995
5075520	Contact member for electrical switching devices A contact member for electrical switching devices, in particular contactors, having a linear power supply conductor and an arc runner disposed at a distance from the contact face of the linear power supply conductor. The arc runner has a U-shaped design h...	12/24/1991
4975553	Line terminal and arc stack for a circuit breaker A circuit breaker line terminal includes a uniform width, flat, sheet metal body having end portions for coupling to a line conductor and an arc runner, respectively. An integral tongue has an end forming a return loop spaced from the body and includes a ...	12/04/1990
4973805	Arc runner, containment support assembly Briefly, the present invention relates to a molded case circuit breaker. The molded case circuit breaker includes at least one pair of separable main contacts, mounted on upper and lower contact arms. One end of the lower contact arm is formed as a U-shap...	11/27/1990
4849590	Electric switch with counteracting electro-electro-dynamic forces A switch has contacts constructed so that an electro-dynamic force is created by the current flowing through the switch which tends to maintain the switch in a closed state. This force counteracts other electro-dynamic forces which tend to open the switch...	07/18/1989
4766273	High current double-break electrical contactor Stationary contact, terminal and arc-runner structure for a high-current double-break electrical contactor that affords longer contact life. Each stationary contact (66,80) and turn-back arc-runner (68,82) is connected to the associated terminal (52,72). ...	08/23/1988
4761626	Circuit breaker In a circuit breaker includes a fixed contactor, a moving contactor subjected to a switching operation of a switching mechanism, a heater connected to the moving contactor and disposed in such a manner as to extend along a fixed core and a moving core piv...	08/02/1988
4649242	Stationary contact assembly for a current limiting circuit breaker A stationary contact assembly is provided for a circuit breaker which has a base, a line terminal and an arc chute. The stationary contact arm is J-shaped and formed from a single piece of conductive material which has a contact affixed to the short leg o...	03/10/1987
4614928	Automatic switch with an arc blast field An automatic switch wherein a movable switch lever bears a contact element which cooperates with a fixed contact element bonded to a ferromagnetic contact strip which serves to provide a compact arc-extinguishing device. The ferromagnetic metal strip is m...	09/30/1986
4521655	Electric power switch with slotted commutation end plate In an electric power switch in which an arc generated between movable and stationary contacts 6, 14 migrates to an arc runner 15 and a commutation end plate and is extinguished by a grid 2 arranged therebetween, a cut is formed at least in the lower half ...	06/04/1985
4489225	Electromagnetic contactor An electromagnetic contactor comprises a stationary contact point fixed to a stationary contact, a movable contact point fixed to a movable contact to associate with the stationary contact point for switching operations, an arc box for arc extinction for ...	12/18/1984
4430631	Circuit breaker with increased current interrupting capacity A narrow width, molded case circuit breaker having parallel, oppositely directed current paths in a conductive stationary contact support (8c) and a pivoting movable contact arm (12b) to cause separation of the contacts (10, 16) by repelling electromagnet...	02/07/1984
4387281	Arc blowing chamber In a blowing chamber for the arcs appearing between the contacts of an electrical circuit breaking apparatus, e.g. a current limiting apparatus, a blowing loop is constituted by a conductor passing firstly parallel to a movable contact, then externally al...	06/07/1983
4295022	Trifurcated arc runner A relatively high current capacity molded case circuit breaker having arcing and main contacts and an arc chute to receive and extinguish arcs drawn between the arcing contacts is provided with a trifurcated magnetic arc runner extending from the stationa...	10/13/1981
4237355	Blowing element An arc blowing element comprises two parallel arms and a stem disposed in the neighborhood of a support for a fixed contact, and a deflector coupled to an extremity of that arm which is remote from the contact and to which it is perpendicular, in order to...	12/02/1980
4011420	Molded case circuit breaker with improved interrupting capacity A molded case circuit breaker of relatively narrow width is afforded dramatically increased current interrupting capacity by providing shielding against the electromagnetic field developed as the result of short circuits flowing through a contiguous circu...	03/08/1977

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Class 218/36 - Arc runner (e.g., arc horn)