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7528690 |
Electrical switching device
The invention relates to an electrical switching device, having a thermal release, an electromagnetic release, and a switching mechanism with a latching point. A contact base for moving a contact...
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7504914 |
Electrical switchgear
An electrical switchgear includes a thermal trip, an electromagnetic trip, and a switching mechanism with a latching point and at least one contact point that is continuously opened or closed. An...
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7187296 |
Miniature fault indicator
A rugged, miniature, waterproof and lightweight magnetic latching indicator with an auxiliary switch. The indicator includes a solenoid, an elongated plunger mounted in the solenoid, the plunger...
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7041920 |
Elongated bridge shunt switch formed by stretching and rupturing a conducting bridge
Structure and method for forming a switchable shunt for a suspension assembly having conductive, insulating and metal base layers. The shunt includes a bridge in the conductive layer with either a...
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6762662 |
Hermetically sealed electrical switch assembly
A hermetically sealed electrical switch assembly comprises a casing having an opening end. A cover is sealingly attached to said opening end of said casing for forming a primary volume hermetically...
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6734513 |
Semiconductor device and microrelay
In one embodiment, a semiconductor device having single or multi-layer intermediate layers that easily adhere to a glass frit and lead lines of respective interconnections is disclosed. In general,...
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5748062 |
Fabricated electric lifting magnet
An electric lifting magnet includes a casing that is fabricated entirely from components such as, for example, structural steel that are welded together. In particular, the lifting magnet includes...
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5671161 |
Switch with diagnostic capability
A switch is provided with the ability to diagnose its own operation and provide signals that represent the actuation of the switch and various diagnostic outputs that indicate fault conditions or...
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5576580 |
DC power supply circuit
A dc power supply circuit connects a plurality of dc circuit breakers to a semi-conductor converter, returning again to the semi-conductor converter through a dc driving part such as an electric...
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5572073 |
AC power module for automation system
Disclosed is an AC power module for controlling the level of power to multiple electrical devices such as lights and household appliances according to control signals supplied from a processor...
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5334963 |
Inertia and inductance switches
A switch device which includes a magnet movable within a passageway. A wire coil is provided about the passageway such that, as the magnet moves into the coil, a current is induced, thereby...
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5036304 |
Rolamite sensor
A rolamite sensor for use in sensing deceleration of a vehicle includes two separate electrical circuits for actuating two occupant restraints such as air bags. The sensor has a molded plastic base...
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4926172 |
Joystick controller
A joystick controller apparatus comprises a lever mounted for pivotal motion in at least two directions, a guide defining a preselected shift pattern for the lever, and an indicating arrangement...
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4491792 |
Sensing switch for a magnetically coupled communications port
A magnetically coupled communications port includes a switch for providing an enable signal upon coupling of a detachable magnetic coupler assembly to a fixed coupler assembly. The switch is...
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4479117 |
Add-on state indicator for an enclosed D.C. power relay
An add-on fault indicator comprising a magnetic reed switch (22) and a lamp (24) connected in series across relay contacts (10, 12, 14) with the reed switch mounted by a clamp (34) contiguous to...
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4359702 |
Relay for microwave oven
Disclosed herein is a combination relay, suppression resistor and end of cycle bell in a compact unitary assembly intended for use in a microwave oven. The size of the relay is reduced by employing...
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4342973 |
Solenoid annunciator
An annunciator for a solenoid includes a conductive probe which projects into the pathway of the solenoid core piece. Upon actuation of the core piece, the probe is engaged by the core piece to...
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4176284 |
Automotive battery power circuit breaker
An automotive electrical master circuit breaker which upon command opens the battery power circuit instantly and harmlessly at the battery cable (equivalent to removing cable at the battery...
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4079344 |
Portable ground fault circuit interrupting device
A portable ground fault circuit interrupting (GFCI) device includes a housing equipped with two sets of back mounted contact blades or prongs for insertion in a conventional duplex wall receptacle....
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4061988 |
Hall effect linear motion switch
A contactless linear motion switch has a housing and a Hall effect sensing circuit positioned within the housing. A plunger carrying a permanent magnet moves within the housing toward and away from...
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3946177 |
Liquid-level sensor utilizing ferromagnetic fluid
The invention is directed to a liquid-level sensor utilizing a ferromagnetic fluid. The magnetic characteristics of the fluid are utilized in a magnetic circuit which generates the output signal...
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3878489 |
Electromagnetic relay having a printed circuit board connection between the contacts and radio type plug-in connector
An improved electromagnetic relay structure wherein a printed circuit board provides the electrical connection between the contact and coil terminals of the relay and the pins of a radio type...
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3825908 |
SOLID STATE SWITCH STRUCTURE
The embodiment of the invention disclosed herein is directed to a solid state switch structure which includes first and second spaced apart saturable magnetic cores. The cores are saturated in the...
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3825909 |
SOLID STATE SWITCH STRUCTURE
The embodiment of the invention disclosed herein is directed to a solid state switch structure which includes first and second spaced apart closed magnetic core structures. The cores are saturated...
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3800249 |
SWITCH CONSTRUCTION
The embodiment of the invention disclosed herein is directed to a switch construction which includes a base member which has a pair of slide surfaces. A cam surface formed as an integral part of...
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3765941 |
METHOD OF PREVENTING INOPERATION OF A COMPONENT BY LOOSE PARTICLES OF MATERIAL
Electrical components are provided with a pressure-sensitive adhesive fixed within an enclosure for the component. Any loose particles of material dislodged from the component and/or dust are...
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3764944 |
SPIRAL MOTOR COIL
An electromagnetic coil comprises a rigid bimetallic plate of substantially uniform thickness and spiral configuration, the axis of the spiral extending in the direction of the thickness of the...
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3714611 |
SOLID STATE SWITCH CONSTRUCTION
A solid state switch construction employing a saturable magnetic core switch. The switch has a keystem of magnetic material to change the magnetic property of the saturable magnetic core to effect...
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3713069 |
CONTACT-FREE ELECTRICAL PULSE GENERATOR UTILIZING GALVANOMAGNETIC SEMICONDUCTOR BODY
A permanent magnetic circuit directs a control magnetic field during operation to a galvanomagnetic semiconductor body. A first magnet in the circuit has a rectangular hysteresis loop. An outside...
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3686597 |
ROLLER-BAND DEVICES
A roller-band device has a stationary magnetic component and a roller-band cluster with a magnetic component polarized for repulsion by the stationary component. One of the magnetic components may...
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3646543 |
SENSING ASSEMBLY
Sensing assembly having a housing with a cavity therein and a movable mass disposed in the cavity in the housing and means normally yieldably urging said movable mass into a predetermined position...
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3622922 |
ELECTRIC PUSHBUTTON SWITCH
A pushbutton switch comprising a casing and a base mounted therein for relative movement. The base has thereon a submagnetic pole plate and a Hall element for electrical connection to a switching...
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3571774 |
NON-CONTACTING ELECTRONIC SWITCH GEAR
Noncontacting, electronic switch gear particularly for pushbuttons which comprises at least one current carrying field plate connected to starting terminals and forming either a resting contact...
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3569876 |
MAGNETIC-ELECTRIC SWITCH ELEMENT
A magnetic electric switch element particularly appropriate as a component for projectile fuzes or similar uses. A switch element having a magnetic field has a contact bridge serving as a switching...
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3516034 |
ELECTROMAGNETIC RELAY UTILIZING A SEMICONDUCTOR ELEMENT
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3398328 |
Electrical relay circuitry for magnetizing systems and the like
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3383487 |
Thin flexible magnetic switch
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3359749 |
Differential control device
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3213230 |
Electromagnetic relay with one-piece support for core and armature
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3171486 |
Magnetically actuated well tool and cooperating tubing nipple
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3155794 |
High capacity liquid contact electrical switch
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3151227 |
Electromagnetically operated switching mechanism
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3147350 |
Magnetically operated reed switch
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3086096 |
Stepping switch
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3023286 |
Electromagnetic electric switches
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2947836 |
Combined relay and high inductance coil
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2912542 |
Relay assembly
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2882399 |
Electron switch
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2872544 |
Barrel plating system
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2828384 |
Circuit breaker
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