| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Electric motor starters | US3582846D | 1969-04-07 | US3582846A | 1971-06-01 | BERRY ALBERT W J |
| An electric motor starter unit has ''''start'''' and ''''stop'''' pushbuttons, a solenoid, main contact sets operable by the solenoid, an auxiliary contact set in the solenoid energizing circuit operable by the ''''start'''' pushbutton and engageable by the main moving contact carrier to hold the solenoid energized, and an overcurrent trip release device. The insulating moulding is in two parts hinged together, namely a base part on which the auxiliary contact set is mounted and an upper part containing the pushbuttons and the trip release device. A current-sensing unit for the trip release device is a separate unit quickly detachable from the upper insulating moulding part for replacement purposes.
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| 42 | Electrical circuit overload protector of the thermally responsive bimetal element type | US3566328D | 1968-05-13 | US3566328A | 1971-02-23 | CARTER URIEL F; MALLONEN EDWARD A |
| AN ELECTRICAL CIRCUIT OVERLOAD PROTECTIVE DEVICE OF THE THERMALLY RESPONSIVE BIMETAL TYPE WHICH CAN BE SELECTIVELY SET FOR EITHER AUTOMATIC OR MANUAL RESET MODES OF OPERATION. OVERLOAD RESPONSIVE UNITS, FOR ONE OR MORE CIRCUIT BRANCHES EMPLOYING STACKS OF BIMETAL DISCS AS THERMALLY RESPONSIVE ELEMENTS, AND ARE MOUNTED WITHIN A HOUSING ON A COMMON BASE. EACH OVERLOAD UNIT HAS AN INDIVIDUAL SNAP ACTING SWITCH WHICH OPENS IN RESPONSE TO AN OVERLOAD CONDITION AS DETECTED BY THE HEAT DEVELOPED IN A HEATER COIL CONNECTED IN THE BRANCH CIRCUIT WHICH SURROUNDS IT THERMALLY RESPONSIVE ELEMENT. THE SWITCHES OF THE OVERLOAD UNITS ARE ALL CONNECTED IN A SINGLE SERIES CIRCUIT BETWEEN TERMINALS PROVIDED FOR CONNECTION TO A CIRCUIT TO BE CONTROLLED. IN A MANUAL TRIP-FREE MODE OF OPERATION A PUSHBUTTON LEVER UPON SUBSIDENCE OF ALL OVERLOAD CONDITIONS IS DEPRESSED INWARDLY OF THE HOUSING TO AFFORD MANUAL RESET OF THE MOVABLE CONTACT MEMBERS OF ANY SWITCH TRIPPED OPEN BY OVERLOAD RESPONSE. ALTERNATELY THE RESET LEVER MAY BE LATCHED IN SUCH DEPRESSED POSITION WHEREIN THE CONTACT OPENING MOVEMENT OF THE MOVABLE SWITCH CONTACT MEMBERS IS SO LIMITED THAT THEY WILL IN DIVIDUALLY AUTOMATICALLY RESET UPON SUBSIDENCE OF THE OVERLOAD CONDITION IN THEIR RESPECTIVE BRANCH CIRCUITS. A MODIFIED FORM OF AMBIENT TEMPERATURE COMPENSATED BIMETALLIC DISC TYPE OF OVERLOAD RESPONSIVE UNIT IS PROVIDED FOR USE WHEREIN THE DEVICE WILL BE SUBJECTED TO HIGH OR WIDELY VARYING AMBIENT TEMPERATURE CONDITIONS.
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| 43 | Manual operator and lock means therefor for overload protective device | US61771467 | 1967-02-21 | US3382336A | 1968-05-07 | THOMAS ROBERT W; PLATZ ELWOOD T |
| 44 | Electric switch with contact weld check means | US27129463 | 1963-04-08 | US3183328A | 1965-05-11 | WHEELER ROY E |
| 45 | Circuit breaking device | US44621054 | 1954-07-28 | US2839633A | 1958-06-17 | MOYER DAVID F |
| 46 | Overload relay switch | US34058740 | 1940-06-14 | US2322161A | 1943-06-15 | SCHLEICHER HAROLD E |
| 47 | Receptacle type ground fault circuit interrupter with reverse wire protection | US13646622 | 2012-10-28 | US08847712B2 | 2014-09-30 | Ze Chen; Gui Chen; Fengming Li |
| A ground fault circuit interrupter comprises a reset key, a reset locking mechanism, a reset mechanism, a reset bracket, a bracket reset mechanism, a bracket homing mechanism, a reset linkage mechanism, and a reset linkage clutching mechanism. A conductive assembly is configured to selectively connect or disconnect electrical continuity between the power input side and the load side. The conductive assembly comprises pairs of short-circuit conductive strips with conductive movable contacts, power input connection assemblies with input conductive stationary contacts, wiring output assemblies, receptacle output assemblies with output stationary contacts, and a first short-circuit conductor and a second short-circuit conductor. A reverse wiring protection device comprises an electromagnetic generating device having a power supply sub-circuit and an electromagnetic actuator bracket configured to selectively close first normally open switch and second normally open switch and further configured to open first normally closed switch and second normally closed switch. | ||||||
| 48 | Electromechanical interlock for electrical protection devices | US12102991 | 2008-04-15 | US07834724B2 | 2010-11-16 | Mahesh Jaywant Rane; Yatin Vilas Newase; Simhadri Ramalingeswara Rao Gupta |
| An interlock is presented which may be mechanically interconnected with a circuit breaker. The interlock toggles between a locked out position that causes the circuit breaker to trip and prevents closure thereof and a non-locked out position wherein the circuit breaker functions. The interlock includes a frame, a lockout actuator supported by the frame, a reset actuator also supported by the frame and a latching assembly. The latching assembly includes a lockout lever that is responsive to movement of the lockout actuator that is pivotably supported by the frame and a lockout trip rod responsive to movement of the lockout actuator. Also provided is a reset lever that is responsive to movement of the reset actuator and that is also pivotably supported by the frame. The reset lever is configured to prevent movement of the lockout actuator without movement of the reset lever and wherein the lockout trip rod is configured for movement between a locked out position and a non-locked out position. | ||||||
| 49 | Electrical switch with latching manual/automatic reset | US99257 | 1998-06-18 | US5941371A | 1999-08-24 | Thomas O. Kautz; Frank J. Stier |
| An electrical switch has a snap action blade with a contact pad. The snap action blade levers between a first configuration at which the contact pad is remote from a stationary contact and a second configuration at which the contact pad abuts the stationary contact. An actuator moves the snap action blade between the first and second configurations. A reset latch has a first position in which a catch coupled to the snap action blade can engage the reset latch to hold the snap action blade in one of the first and second configurations, and has a second position at which such latching does not occur. A manual reset actuator is provided to release the catch from the reset latch. A reset selector determines whether the reset latch is in the first or second position and thus whether the switch is in an automatic reset mode or a manual reset mode. | ||||||
| 50 | Contact mechanism for electronic overload relays | US79722 | 1998-05-15 | US5910759A | 1999-06-08 | Christian Henry Passow |
| Ease of assembly, inexpensive construction and improved reliability may be achieved in a trip mechanism for an overload relay including a housing containing a bistable armature mounted in the housing on a pivot for pivotal movement between two stable positions. Fixed contacts are located within the housing and moveable contacts are carried by leaf springs for movement to a closed position with the fixed contacts for one of the two stable positions and for movement to an open position relative to the fixed contacts for the other of the two stable positions. Projections carried by the armature are operative to move the leaf springs and their associated contacts. A latch arm is carried by the armature and has a latch surface. A spring is mounted on the housing and has a latch finger for engaging the latch surface and retaining the armature in one of the two positions. | ||||||
| 51 | Control button adaptor for electric control apparatus | US665873 | 1991-03-06 | US5150092A | 1992-09-22 | Arthur F. Kolb |
| A one-piece molded adaptor comprises a rectangular frame having inwardly directed ledges on opposed lateral legs cooperably engagable with projections on a contactor housing normally intended to interlock with an auxiliary contact block housing. The frame fits firmly over a rectangular protrusion of the contractor housing to securely lock the adaptor to the contactor. A depending cantilever portion provides a laterally offset portion overlying a reset plunger of an overload relay and provides a finger-engagable pushbutton portion offset from the plunger and centrally located relative to the starter panel footprint to mimic the reset button location of earlier generation starters. | ||||||
| 52 | Thermally-sensible overcurrent protective relay including automatic resetting mechanism | US110084 | 1987-10-16 | US4785274A | 1988-11-15 | Yuji Sako; Haruhiko Ito; Mineo Sano |
| A thermally-sensible overcurrent protective relay comprising a toggle mechanism operable in connection with the bending operation of a bimetal bendable in response to current flowing through a main circuit a normally-open contact having a normally-open fixed contact element and a normally-open movable contact element both formed by a resilient conductive thin plate having a contact portion at one end thereof a normally-closed contact having a normally-closed fixed contact element and a normally-closed movable contact element both formed by a resilient conductive thin plate having a contact portion at one end thereof, and a mechanism adapted to be selected to an automatic resetting position and a manual resetting position in such a manner as to contact one surface of the contact portion of the normally-open fixed contact element at one end of a changeover lever pivotally rotatable to displace the normally-open fixed contact element toward the normally-open movable contact element and retain the normally-open contact in two positions at the other end of the changeover lever; wherein the normally-closed contact and the normally-open contact are interlockingly operated by the operation of the toggle mechanism. | ||||||
| 53 | Thermal type overload relay | US848996 | 1986-04-07 | US4670728A | 1987-06-02 | Katsumi Akiike; Haruo Ichikawa; Kanichi Izumi; Tadayoshi Onodera |
| A thermal-type overload relay which uses a bimetallic element for sensing overload currents includes a shifter controlled by the bimetallic element to shift a release lever to which is attached a spring. The spring controls a movable board which has two reversible stable positions corresponding respectively to turn off or on a pair of normally open contacts and a pair of normally closed contacts.The movable board is a molding of insulated material carrying a pair of spaced insulated contacts and also includes a segment which is externally visible to display an indication of which pair of contacts is open and which is closed. | ||||||
| 54 | Device for shifting a double-throw contact arrangement | US134897 | 1980-03-28 | US4315233A | 1982-02-09 | Albert Warnest |
| A device for shifting a contact arrangement in a thermally operating protective relay having a make contact, a break contact, as well as a double-throw contact, provides for shifting the arrangement from self-locking to automatic resetting by shifting the make contact by means of a piston which can be locked. The self-locking condition provided can be cancelled by arranging the make contact for motion, in the closing direction, by the piston which is supported so as to be freely movable. The plunger has a resilient hook which can snap into undercuts in the housing of the relay which establish the end positions of the plunger. The undercuts are arranged in steps so that two different end positions for the plunger are obtained when the plunger is rotated approximately 90.degree.. One end position corresponds to the automatic resetting of the contact arrangement. The other end position makes it possible to move the plunger to cancel the self-locking condition. Using this structure, only one piston is needed, and the shift can be made with one hand. | ||||||
| 55 | Overload relay indicating means | US48980774 | 1974-07-18 | US3866156A | 1975-02-11 | DIMARCO BERNARD; KRALIK ANDREW J |
| An overload relay having a conventional replaceable heater is provided with an auxiliary bimetal secured to the deflectable end of the main bimetal and arranged to deflect in a direction opposite to deflection of the latter. Tripping results from the net deflection of these bimetals. The main bimetal shields the auxiliary bimetal from direct heat radiating from the heater, so that upon rapid heating of the latter the initial result is that the main bimetal deflects rapidly and there is essentially no reverse deflection of the auxiliary bimetal whereby tripping takes place very rapidly. A contact position-indicating lever is biased to follow the movable contact to its open position. When the contacts are closed, this lever is accessible for manual opening of the overload relay.
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| 56 | Electric overload switch with improved thermal actuator | US22504462 | 1962-09-20 | US3226510A | 1965-12-28 | THOMAS ROBERT W; PLATZ ELWOOD T |
| 57 | Electric switch | US74469658 | 1958-06-26 | US2897319A | 1959-07-28 | WOLFF ERNST R |
| 58 | Overload relay | US49962955 | 1955-04-06 | US2831943A | 1958-04-22 | RAMSEY JAMES B; ANDERSON PAUL T |
| 59 | Electric switch | US41593254 | 1954-03-12 | US2688674A | 1954-09-07 | |
| 60 | Thermostat | US10205936 | 1936-09-23 | US2157857A | 1939-05-09 | LEE PAUL R |
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