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7990239 |
Electricity meter contact arrangement
At least one electrical contactor is provided that includes a fixed contact and a movable contact. The fixed contact includes a center leg and first and second arms that extend in opposite...
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7767916 |
Switch device
A switch device that adjusts tactile sensation of a switch knob without control delay. The switch device includes a knob operated to switch an actuation state of an apparatus. A click mechanism is...
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7646270 |
Electrical switching apparatus, and yoke assembly and spring assembly therefor
A spring assembly is provided for a yoke assembly of an electrical switching apparatus including a housing, separable contacts enclosed by the housing, and an operating mechanism structured to open...
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7541899 |
Multi-pole circuit breaker and apparatus for preventing deformation of driving shaft thereof
Disclosed are a multi-pole circuit breaker and an apparatus for preventing deformation of a driving shaft thereof. The multi-pole circuit breaker includes: a plurality of single pole breaking units...
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7538644 |
Multi-pole circuit breaker
Disclosed is a multi-pole circuit breaker. The multi-pole circuit breaker includes: a substrate disposed between the single pole breaking unit, spaced relatively far from the switching mechanism as...
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7474179 |
Electrical switching apparatus, and movable contact assembly and contact spring assembly therefor
A contact spring assembly is provided for an electrical switching apparatus including a movable contact assembly and a stationary contact assembly having stationary electrical contacts. The movable...
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6348847 |
Control device for breaker
A making operation preventing device 130 has a releasing trigger 19 for retaining, via a releasing latch 18, a breaking lever 36 to which a torque in a counterclockwise direction is applied by an...
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6150909 |
Electromagnetic switching device
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5986528 |
Electrical switching device
An electrical switching device prevents moving contacts from welding to stationary contacts in a switching device. This is achieved using an auxiliary magnet system in the main current path, which...
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4893102 |
Electromagnetic contactor with energy balanced closing system
An electromagnetic contactor or motor controller is taught in which an energy efficient bounceless contact closing operation is utilized. An electromagnetic closing coil voltage is sensed by the...
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4746778 |
Circuit breaker with an actuating device and an energy accumulator
An energy accumulator for a circuit breaker comprises a cross piece which can be inserted between side walls of the support mechanism of the circuit breaker, which has a substantially U-shaped...
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4739293 |
Electromagnetic contactor with reduced noise magnetic armature
An electromagnetic contactor is taught having an E-shaped movable magnetic armature and a complementary E-shaped permanent magnet. The outboard legs of the E-shaped members abut at closure. Each of...
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4713640 |
Molded-case circuit breaker with improved contact arm assembly, toggle link means and arc shield component
The pivot shaft which couples the contact arm to the side support plates of a molded-case type circuit breaker is provided with a pair of spacer members that hold the contact arm in precise...
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4638277 |
Circuit breaker with blow open latch
An electric circuit breaker with blow open contact arm characterized by a pair of separable contacts one of which is mounted on a contact arm that is rotatably mounted on mounting bracket. The...
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4635012 |
Contactor structure of circuit breaker
Individual movable contactors of a circuit breaker are made up of a pair of conductors. The first conductor has one end bifurcated to form a pair of legs separated by a slit. At the open end each...
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4608545 |
Movable contact arm assembly for a current limiting circuit breaker
A movable contact arm assembly is provided for a circuit breaker. The contact assembly includes a carrier which has first and second guide plates with aligned roller guides and bracket supports and...
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4553119 |
Electric circuit breaker having reduced arc energy
An electric circuit breaker having fast short circuit response along with reduced arc energy is provided by means of a current limiting contact arm arrangement. The contact arm is arranged to pivot...
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4480242 |
Variable torque contact arm for electric circuit breakers
A movable contact arm for circuit breakers allows the contact opening characteristics to be determined over an entire range of breaker ratings. The contact arm is provided with a camming surface...
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4465992 |
Double-pole double-throw proximity switch
A magnetically actuated proximity switch is provided with a double-pole double-throw contact arrangement. To substantially equalize the contact pressures between the two poles a movable armature,...
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4323945 |
Polarized electromagnetic relay
A polarized electromagnetic relay includes two contact springs extending substantially parallel to each other.One of the contact springs forms a movable contact for cooperation with a fixed...
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4227161 |
Current limiting circuit breaker with pivoting contact arm
A current limiting circuit breaker includes two parallel pivoting contact arms carrying contacts at the ends thereof. The upper arm is double pivoted and is operated by a mechanism between open and...
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4225838 |
Electro-magnetic relay with first and second spring biasing means
A high sensitivity electromagnetic relay has a moving armature held against two pole pieces of a magnetic circuit by means of a permanent magnet. The armature is subject to the action of two return...
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4095200 |
Contactor having reduced contact bounce and shorter arc time
A DC contactor providing increased magnetic efficiency, reduced contact bounce, and shorter arc time has a movable contact carrier bar pivotally mounted relative to a clapper armature so as to...
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4058781 |
Double pole contact operating mechanism
A double pole double throw relay has two flexible electrically conductive contact arms which each carry an electrical contact positioned to engage cooperating contacts. Contact closing pressure is...
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4024364 |
Pressure switch mechanism and cam stop arrangement therefor
An improved calibration mechanism is provided for use on a pressure switch having an adjustable, spring biased plunger arrangement for controlling the pressure level required to actuate the switch....
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4006439 |
Circuit interrupter having an insulated bridging contact
A circuit interrupter particularly suitable for use in an oil filled distribution transformer having an elongated contact arm pivotable about one end with a movable contact attached to the other...
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3864652 |
FLOATING CONTACT MEANS
A circuit breaker having a pair of spaced insulated stationary contacts engageable by a pair of movable contacts mounted to a conducting bridge on a movable contact arm is provided with common...
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3848206 |
ELECTROMAGNETIC SOLENOID WITH IMPROVED CONTACT ANTIBOUNCE MEANS
An electromagnetic switch having improved means to minimize contact bounce. The improved contact bounce minimizing means includes an adjustable stop member which prevents substantial overtravel of...
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3624571 |
PRECISION METHOD AND MEANS FOR POSITIONING CONTACT POINTS IN MINIATURE ELECTRICAL RELAYS
A small cylindrical hardened steel drive shaft having knurled serrations formed circumferentially in a continuous band around a central portion is rotatably mounted in bearing recesses formed in a...
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3573688 |
MOTOR RELAY
In preferred form a starting relay for an electric motor having a wire wound electromagnetic coil and a pivotal armature attached thereto. A normally open contact pair comprising one fixed contact...
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3545265 |
HORSEPOWER MEASURING APPARATUS
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3495200 |
ADJUSTABLE ARMATURE FOR AN ELECTROMAGNETIC RELAY
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3705966 |
ADJUSTABLE RELAY CONTACT
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3452428 |
METHOD OF ADJUSTING AN ELECTROMAGNETIC CIRCUIT BREAKER
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3431522 |
ADJUSTABLE SPRING TENSION MEANS
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3340376 |
Antibounce contact means
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3256402 |
Switch relay for use in electric motors
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3189705 |
Relay with a central, coaxial core magnetizable with the relay coil conductor
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3157765 |
Mounting structure for electromagnetic contactor
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3114808 |
Electrical relay
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3027436 |
Rolling contact
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3004121 |
Electrical relay
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2989603 |
Interrupter switch operating mechanism
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2985736 |
Reversible contact structure
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2951922 |
Electrical contactor assembly
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2938979 |
Mounting of electrical contacts
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2932704 |
Electromagnetic device
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2930870 |
High speed switch
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2926229 |
Anti-chatter switching device
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2924684 |
Contact device
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