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Document Title |
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7538646 |
Relay with reduced leakage current
A relay includes a magnetic system provided with an armature and a contact system provided with a first contact and a moveable second contact. An electrically insulating base plate is arranged...
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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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7350285 |
Method of manufacturing a switch panel to be disposed close to a magnetic sensor
A method of manufacturing a movable contact unit includes manufacturing a movable contact, sticking the movable contact to a base sheet made of insulating resin, and applying demagnetization to the...
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7202427 |
Switch contact arrangement comprising a device for increasing a contact-force acting between switch contacts
A switch contact arrangement for a power switch is provided with a device for increasing the contact force acting between switch contacts. The device includes a cavity which is made in a stationary...
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7196282 |
Movable contact unit arrangement including a movable contact unit and a magnetic sensor
A movable contact unit arrangement includes a movable contact disposed close to a magnetic sensor. The movable contact unit includes a base sheet made of insulating resin, and a movable contact...
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7178223 |
Method of manufacturing a movable contact unit to be disposed close to a magnetic sensor
A method of manufacturing a movable contact unit includes manufacturing a movable contact, sticking the movable contact to a base sheet made of insulating resin, and applying demagnetization to the...
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7030722 |
High-temperature shutdown protecting relay
A high-temperature shutdown protecting relay comprises a base; a L copper pin and a N copper pin are provided on the base with resting contacts provided at their bottoms respectively; stretchy...
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6922573 |
Portable cellular phone capable of detecting its folding state
A portable cellular phone is provided which is capable of surely detecting a state of folding of phone bodies by detection of a weak magnetic field produced by a receiver. A first phone body has a...
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6833778 |
Electromagnetic switch and starter using the same
An electromagnetic switch includes a contact holding member connected to a plunger in order to hold a first movable contact. The contact holding member is disposed outside a switch case covering a...
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6751849 |
Method for connecting a contact body and a flexible conductor, and a compression mold for carrying out said method
A movable contact arrangement suitable for use in a switching device has a rigid contact body and a flexible conductor piece connecting the contact body to a fixed conductor. The contact body is...
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6388859 |
Shock resistant breaker shunt trip
A shunt trip assembly having a tripping solenoid and a locking solenoid selectively blocks movement of the tripping solenoid to prevent inappropriate tripping of a circuit breaker during shock...
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6005459 |
Switching device
A switching device providing highly-reliable, frictionless, adjustment-free operation is described. Comprised of a comparatively small number of moving parts, the various aspects of the invention...
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5994988 |
Movable contact structure for a circuit breaker, including crossbar and spring biased cam mechanism
A circuit breaker (10) has a housing (12). A crossbar (114) is pivotally connected to the housing to pivot about an axis (117) between open and closed positions. A load contact arm (110) is...
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4990830 |
Current sensing relay
A three pole relay is shown which operates in response to the flow of normal operating current across fluorescent lamps to energizes a coil which actuates a relay to open switches disposed in all...
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4803774 |
Method of making molded case circuit breaker contact arrangement
A molded case circuit breaker movable contact arm or carrier electrically connects with the circuit breaker trip unit or load terminal without requiring a flexible electrical conducting braid. The...
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4733211 |
Molded case circuit breaker crossbar assembly
A molded case circuit breaker crossbar assembly allows the movable contact carrier, contact spring and contact carrier operating cam to be preassembled prior to insertion within the circuit breaker...
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4706056 |
Electrical relay apparatus
A miniaturized electromechanical relay (1) with an armature assembly (14) and a contact assembly (13) mounting contacts thereon and having a magnetic member assembly (12) for activating the...
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4692728 |
Self-aligning spring mechanism for an electrical switch
An electromagnetically operated relay having a spring which compensates for misalignment of a moveable block as shown and described. The movable block reciprocates within said relay housing in...
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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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4496920 |
Electromagnetically operated electric switch
A contactor has a movable contact assembly which is connected to the magnet armature in such a way that the contact assembly moves translatorily in the same direction as the armature between a...
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4491814 |
Circuit breaker
A circuit breaker having a contact opening and closing mechanism including a contact actuator member which is moved between a first position and a second position to close and open the contacts....
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4484164 |
Braidless movable contact with wiping action
A so-called blow-off type current limiting circuit breaker is provided with an elongated movable contact arm that is pivotally mounted at one end thereof on a pin that projects from opposite sides...
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4482877 |
Electric circuit breakers having fast short circuit response
A thermal magnetic circuit interrupter with instantaneous short circuit current response utilizes a hook-shaped contact arm pivotally mounted on the operating mechanism at the end of the contact...
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4442470 |
Ground fault receptacle with arrangement for protecting internal electronics
A third pair of contacts, in addition to main power contacts, is provided that includes a conductive path through the latch member holding the power contacts in closed position and the latch...
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4363010 |
Contact device for a switch
A contact lever has a contact point on one end for a fixed contact element and is supported on its other end on a pin which, when the switch is tripped, is capable of moving along a path...
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4342019 |
Electromagnetic relay with a flat armature
An electromagnetic relay has a flat armature which is normally biased away from a pole plate by a bearing spring attached to the armature which is mounted in a recess in a yoke plate, and is...
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4336516 |
Circuit breaker with stored energy toggle-lock structure
A circuit breaker characterized by a toggle lock means for holding toggle springs in a charged condition ready for closing a circuit through the circuit breaker contacts when necessary.
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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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4323869 |
Armature mount for an electromagnetic relay
The relay includes an "L"-shaped yoke and a cylindrical solenoid core mounted at end thereof in a hole in the short arm of the yoke. The other end of the core is terminated in a pole plate which...
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4290037 |
Flat electromagnetic relay
A flat electromagnetic relay which includes a base member having at least two projections extending from a flat surface thereof. At least one hole (or indent), fitting a pertinent one of the...
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4243964 |
Electromagnetically operated switch, particularly starter switch for automotive starter motors
In order to effectively disconnect a contact bridge from fixed terminals, even though the contact bridge may be sticking to the contacts, or may be welded or hang, a plunger-type armature core is...
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4116515 |
Spring actuated contact for high voltage bushing
A high voltage bushing having a bore contact mounted for axial movement within the bushing housing, the bore contact being biased for movement into engagement with a rod contact and a magnetically...
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4095213 |
Mechanically actuable control relay
A mechanically actuable electrical control relay has normally open contacts at least one of which is associated with a movable armature. A fixed, magnetizable core part has a winding or coil...
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4087667 |
Double-throw contact
A double-throw contact assembly, particularly for relay switches, or push button switches of the non-locking type, having a break contact, a make contact, and a pair of flexible contact arms...
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4042798 |
Mounting device for compression spring
The device includes a carrier having first and second openings which are interconnected by a breakthrough opening. A pull bracket, including a main portion which seats in one opening of the carrier...
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4010431 |
Switch for electrical wall receptacle with ground fault protection
An electric receptacle with ground fault protection characterized by an insulating rectangular housing adapted for mounting in a wall outlet box. The housing comprises opposite end and edge walls...
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3959757 |
Circuit breaker with magnetic assist
In order to eliminate contact bounce and electrodynamic repulsive forces upon closure in a standard high rating circuit breaker device when a fault exists, an armature is disposed on the movable...
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3940726 |
High speed solenoid employing multiple springs
A high speed solenoid assembly especially adapted for use in impact printers of the dot matrix type. The solenoid coil, when energized, drives the solenoid armature and a print wire connected...
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3898596 |
Auxiliary contact interlock for electromagnetic contactor
The auxiliary contact interlock for use with an electromagnetic contactor having a crossbar which in the open position of the contactor is subject to unlimited vertical bouncing incurred by ambient...
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3885115 |
Switch-over contact
A switch-over contact for relays or switches in which the contact forces can be easily, yet accurately adjusted without costly adjustment operations. According to the invention, the two contact...
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3873952 |
Electromagnetic contactor
An electromagnetic contactor utilizing a pair of wire springs as resilient means for providing the returning force to the movable element including movable contact pieces and movable iron core of...
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3800250 |
ELECTROMAGNETIC RELAY
Electromagnetic relay having a balancing spring for the armature and engaged between an end of the armature and a stationary part of the electromagnetic device so that as the armature is attracted...
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3797007 |
CIRCUIT INTERRUPTER PROTECTIVE DEVICE
A circuit interrupter protective device responsive to abnormal currents in conductors of an electrical distribution system characterized by a circuit breaker within a first insulating housing and...
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3707691 |
ELECTROMAGNETIC FLAT-TYPE RELAY
An electromagnetic flat-type relay with a pressure spring permanently biased engages a slewably supported tilting member carrying the movable contact member, exerting opposite torques thereupon in...
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3668577 |
LEAKAGE CIRCUIT BREAKERS
The balanced armature pivots on one pole piece and has a small contact surface that cooperates with the other pole piece. Movement of the armature is coupled to the tripping catch that operates the...
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3662288 |
MAGNETIC SWITCH SYSTEM
This is a magnetic switch in which a plunger urges a contact at the end of an armature against a fixed contact passing a current through the winding around the core which causes a magnetic field to...
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3623150 |
CONTACTOR SWITCH
A contactor rated to switch at least 20 amperes in which the movement of a contact arm to engage a moving contact with a fixed contact occurs in two stages, the arm first moving to engage the...
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3521265 |
ELECTROMAGNETIC TOGGLE FILAMENT TENSION MONITORING DEVICE
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3517358 |
RELAY
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