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Document Title |
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8085514 |
Modular on-machine controller
A modular control assembly is provided for on-machine control of a desired machine. One embodiment has a machine mountable base and a replaceable control unit, wherein the machine mountable base...
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8044624 |
Load control apparatus and method for processing diagnosis signal for the same
A load control apparatus outputs a PWM signal to a switching element to control a load. The switching element is connected between a power supply and a grand in series with the load. An abnormal...
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7954334 |
Inverter system and vehicle
An inverter system having a semiconductor device, and a railway vehicle using this inverter, provide a more accurate determination of whether an abnormal heat generation from the inverter is...
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7638961 |
Drive system and control method of the same
In response to a system-off instruction, the drive system control technique of the invention controls individual motors of an electric cooling water pump and an electric cooling fan to stop (step...
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7538992 |
System, device, and method for over-current relays protecting motors
A system, method, and device for protecting an induction motor are disclosed. The exemplary system may have a module for determining the current drawn by the motor and a module for determining the...
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7498913 |
Thermal trip device and circuit breaker using the same
A thermal trip device in which a bimetal (2) is heated by overcurrent and performs trip operation of a circuit by curvature of the heated bimetal (2), wherein at least one part of the surface of...
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6545584 |
Circuit breaker with inertia device to prevent shockout
A pair of spring mounted masses have sufficient inertia to remain stationary in response to a shock force applied to the housing of a trip assembly in a circuit breaker to block movement of the...
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6542062 |
Overload protector with control element
A hermetic compressor is disclosed having an electric motor, a compressor unit, and an overload protector within a hermetically sealed housing. The overload protector includes a thermally activated...
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6496339 |
Electric power supply device and equipment using thereof
An electric power supply device 13, combining an overload protector device 3 and a starter device 4 each other, and an equipment using thereof comprises a socket terminal 5 connected to an electric...
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6490015 |
Liquid crystal display module having a light waveguide plate and a main supporting frame
The invention eliminates light leakage in liquid crystal panel caused by burrs, i.e., protrusions, on a light waveguide plate causing misalignment when the light waveguide plate is seated in the...
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6122154 |
Motor starting device and protector module with motor starter cut-out switch
Embodiments of a combination motor starting device and protector module including a motor start winding cut-out switch for an electric motor are described. In the one embodiment, the motor...
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5630009 |
Method and apparatus for controlling a DC electric motor
A direct current (DC) electric motor is shifted between higher and lower operating speeds in response to motor operating conditions to prevent motor stalling, overheating and burnout. Switches are...
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5615072 |
Temperature-sensitive switch
A temperature-sensitive switch (10) for protecting electrical parts against excess temperature and/or excess current comprises a bimetallic switching device (14) which opens or closes its contacts...
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5515229 |
Overcurrent protector with overheat prevention means
An overcurrent protection device for a motor M with an overheat prevention function having a housing 10 with fixed contacts 16, 18 and movable contacts 24, 26. A first snap acting bimetallic...
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5451853 |
Starting device for a single phase induction motor
A starting device for a single phase induction motor can reduce the power consumption and restart in a short time. The starting device for the single phase induction motor having a main winding and...
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5367279 |
Overcurrent protection device
An overcurrent protection device 10 has a fixed 26 and a movable 32 contact electrically connected to a pair of terminals 14, 16 and a snap acting bimetallic member 34 which is responsive to a...
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5131455 |
Low power electrical fan motor and heater thermal protection circuit for air conditioner
An air conditioner has a refrigeration system with a compressor, a motor for air-circulating fans, indoor and outdoor heat exchangers and a four-way valve connected through refrigerant conduits...
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5021915 |
Combination starter-protector device and method of assembling same, overload protector and method of assembling same
A method of assembling an overload protector for use in a combination starter-protector device adapted to be associated in circuit relation with a dynamoelectic machine. To practice this method, a...
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4862306 |
Combination motor protector and starter apparatus
A motor protector and starter particularly suited for refrigeration compressor motors are mounted in the recess of a first housing portion with their resilient female sockets disposed in alignment...
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4768125 |
Protective device for an electric motor
A device for protecting a DC series electric motor from the voltage surge which occurs when the motor fields collapse. Electrical resistances are connected in parallel with the series field coils...
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4706152 |
Protected refrigerator compressor motor systems and motor protectors therefor
A motor protector having a thermostat metal element thermally coupled to an electrical motor in a refrigerator compressor motor system has a heater responsive to motor current thermally coupled to...
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4701824 |
Protected refrigerator compressor motor systems and motor protectors therefor
A motor protector having a thermostat metal element thermally coupled to an electrical motor in a refrigerator compressor motor system has a heater responsive to motor current thermally coupled to...
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4686599 |
Motor protection switch
The motor protection switch comprises a movable contact piece being manually movable by way of an actuator, which includes actuator buttons. The contact piece can be brought in and out of contact...
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4452292 |
Automatic door opener
A door is provided having an automatic opening means for the door and a key locking facility for mechanically locking the door in a door closed position and electric circuit means connected with...
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4422120 |
Combination starter-protector device
A combination starter-protector device for a winding circuit of a dynamoelectric motor comprises a housing structure having a perforated wall dividing the interior of the housing structure into...
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4412266 |
AC Electrical device protective thermal relay
A protective thermal relay comprises a main heater for heating a snap-action element of a bimetallic switch to open the switch. The main heater is connected in series with the motor or other device...
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4389692 |
Overload-protected switching apparatus for electrical starter system for combustion engines
A thermoswitch is physically located on a portion of the current supply connector between the current source and the exciter winding of the starter motor. The portion, constructed as a simple strip...
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4384312 |
Line break protection for multispeed motor
Overload protection for a multispeed motor is provided in the form of a plurality of line break motor protectors positioned in good heat transfer relation with the motor windings and having heating...
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4306264 |
Disconnect and overload bypass arrangement for a portable tool
The invention is directed to a disconnect and overload bypass arrangement for a hand-held portable tool equipped with an electric motor supplied from a source of electrical energy and a manually...
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4207602 |
Protector means for electric motor
A three phase motor is constructed with each of the three phase windings thereof split in half so that the motor may be selectively connected for energization from either a relatively high or...
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4107762 |
Solid electrolyte capacitor package with an exothermically-alloyable fuse
A fuse for a solid electrolyte capacitor is made of two exothermically alloyable metals such as aluminum and palladium. The fuse has a series electrical connection with and a thermal connection to...
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4015229 |
Thermally responsive switch
A thermostatic switch of low profile comprises a can with a stationary contact attached to the bottom of the can. A movable contact affixed to the end of a snap-acting bimetal member is positioned...
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4013988 |
Hermetically sealed motor protector
A hermetically sealed motor protector or the like is disclosed in which a switch chamber is defined by a cylindrical, cup shaped element and a header welded to one end thereof. A pair of insulated...
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3962664 |
Current protector
A current sensing, self-heating device for protecting equipment against abnormal current levels which is automatically resettable under mild overcurrent conditions and nonresettable under severe...
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3916257 |
Motor protector
A protector for a multiphase dual voltage electric motor, each winding phase of which comprises two winding sections adapted to be shunt-connected when energized by a power source of a first lower...
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3718879 |
APPARATUS FOR STARTING AND PROTECTING OF ELECTRICAL MOTORS
A combined relay and protector is shown particularly suitable for starting and protecting electrical equipment having a main winding and a start winding comprising two thermal elements mounted...
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3700964 |
MOTOR OVERLOAD PROTECTOR AND VOLTAGE CUT-OUT DEVICE
A current responsive motor overload protector for a three-phase AC motor wherein there are three bimetallic elements each of which is incorporated in a switch, each such switch being in series with...
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3694717 |
STARTING AND OVERLOAD CONTROL DEVICE FOR ELECTRIC MOTORS
A starting and overload control device is provided whereby current is automatically supplied to both the starting and the main winding of an electric motor when the motor is first energized....
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3549970 |
SINGLE-PHASE MOTOR CONTROLS WITH COMBINATION OVERLOAD PROTECTOR AND STARTING SWITCH
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3530337 |
ELECTRICAL MOTOR OVERLOAD INDICATOR AND VOLTAGE CUTOUT DEVICE
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3525914 |
THERMALLY-RESPONSIVE BIMETALLIC STARTING SWITCH FOR MOTORS
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3521138 |
THERMAL STARTING DEVICE FOR A SINGLEPHASE ASYNCHRONOUS MOTOR
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3621568 |
METHOD OF MAKING A MOTOR PROTECTOR
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3467903 |
MOTOR WITH THERMAL CUTOUT
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3412257 |
Lamp and light-sensitive cell housing
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3293519 |
Surge current limiter for the split phase capacitor a. c. compressor motor of a domestic air conditioner
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3275888 |
Power line protecting surge current limiter for single-phase electric motors
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3255397 |
Motor protection
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3243554 |
Combination motor protector and start relay
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3211955 |
Circuit interrupting device
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