Abstract: A push button current cut-off safety switch comprising a housing having an opening; a push button mounted within the housing and being fitted to said opening; a push rod being mounted below said push button and including a triangular passage and an insulating element; a spring being inserted into and compressed by the push rod; an interlinking rod having one end pivotally connected to the housing and the other end being connected to the triangular passage of the push rod; a first conductive plate; a second conductive plate being connected to the first conductive plate by a resilient plate such that the downward movement of the push rod electrically connects to the first and the second conductive plates and the upward movement of the push button disconnects the first and the second conductive plates; an alloy metal made of a shape memory alloy which is thermally deformable, said alloy metal being linked to the second conductive plate and connected to the interlinking rod; a third conductive plate being connect

Abstract: A circuit breaker switch essentially comprising a push button switch, an alloy metal having one end connected to a contact of a circuit of the switch and the other end being mounted to the circuit of the switch. If the current to the switch does not exceed a predetermined current value, the switch functions as a normal switch. That is, the original position of the switch is in the “OFF” position and a depression to the push button changes its position to the “ON” state. A further depression of the push button restores the push button to the “OFF” state. When the current passed to the switch exceeds the predetermined current valve, the alloy metal is thermally deformed and curved upward, which forms a gap to allow an insulating plate to be inserted to cut off the current supply and open the circuit. The switch restores to its function by resetting the push button.

Abstract: A power switch device includes a switch body with a switch contact device pivotally connected to a switch cover body. An alloy piece is connected to one of two contact terminals and a second contact joint to which the other contact terminal disengagably contacts when the circuit is closed. The switch contact device has a movable member retractably received therein and the alloy piece contacts one end of the movable member. The end of the movable member is normally supported on a plate in the switch body so that when the current is overloaded, the alloy piece is thermally deformed to push the end of the movable member away from the plate and the switch contact device is therefore pivoted to release a conductive plate pressed by the switch contact device so as to shut the circuit.

Abstract: A circuit breaker with a push button includes an electrical breaker having a casing having an opening defined therein with a hole defined in each side near the opening. A first prong and a second prong each attached to and extending through the casing. An alloy plate is attached to the first prong and has a free end aligning with the second prong. A seesaw switch is pivotally mounted in the opening of the casing with a shaft extending from the center of each side. Each of the shafts is received in the corresponding hole in the casing. A push block is pivotally attached to the bottom portion of the seesaw switch and has a recess defined therein to receive the free end of the alloy plate. An activation block extends from a top portion of the seesaw switch. A push button is attached to the electrical breaker and has an activation rod movable back and forth therein. The activation rod presses on the activation block of the seesaw switch and has an axis at a right angle with the axis of the shaft.

Abstract: A power switch device includes a switch box with a button pivotally connected thereto which is pivotally connected to an actuating member. An engaging member is movably connected to the actuating member and removably engaged with a block. A head connected to the actuating member movably compresses a conduct plate so that when the conduct plate contacts a terminal plate, the circuit is closed. A bimetal plate connected to the terminal plate has a pushing end contacting the engaging member so that when the current is overloaded, the pushing end is thermally deformed to push the engaging member away from the block and the engaging member drops due to gravity. The head is then lifted to release the conduct plate from the terminal plate to open the circuit.

Abstract: A switch structure comprises a control element, which comprises an alloy piece and a swinging device. The swinging device has an actuating element used to actuate the swinging device when the actuating element is pushed. When the alloy piece is overheated due to overloading of current, it will deform toward the actuating element so as to eject the actuating element, which causes the swing device to swing outwards and is released from the supporting of the stopper in the switch body. Then, the swing device moves towards the original closing position, and the elastic contacting piece is released from the pressing of the swing device to eject upwards. Two joints connected in an electric loop are tripped. The object of rapid response, cutting power source, and safety is therefore achieved.

Abstract: A safety switch. The switch includes a housing configured to hold a pivoted lever at the top and three metal contact plates at the bottom. A movable member pivots on the intermediate metal contact plate. A bimetal element with a fixed end is connected to one end of the movable member and a free end of the bimetal element is suspended above one of the lateral metal contact plates. An actuating member is coupled between the lever and the movable member and driven by the lever to tilt the movable member between a first position where the free end of the bimetal element is forced into contact with the corresponding lateral metal contact plate, causing the circuit to be closed, and a second position where the free end of the bimetal element is disconnected from the corresponding lateral metal contact plate, causing the circuit to be opened. The lever can include a light, a conductive end of which contacts the remaining lateral metal contact.

Abstract: A switch structure which includes an alloy piece, a contact control device, and a push device is disclosed. The contact control device includes an elastic part and connects to an end part so that the end part may reciprocally move with respect to the contact control device in a horizontal direction. The end part normally contacts with the upper side of the stopper placed in the switch body and is used to push the push device towards the end part when the alloy piece is overheated and strain is generated due to the current flowing through the alloy piece. The end part then elastically contracts and escapes from the stopper to fall down so that another end of the contact control device projects upwards and does not press the elastic contact plate. Therefore, the elastic contact plate may escape from the two contact points to cut off the power source rapidly by the elastic force to achieve the purpose of safety.

Abstract: A switch structure comprises a switch case, a switch, a contact reed, a control element, a swinging device, and an alloy piece. The swinging device is assembled with the control element. The switch is coupled with the contact reed. When the alloy piece is overheated due to current overloading, it is deformed towards the control element so as to push the swinging device that is then swung away and released from the support of the switch case. As a result, the control element moves towards to an original off position. An elastic contacting piece is released from the pressing of the control element so as to be ejected upwards and break the power supply.

Abstract: This invention is related to an auto tripping key switch, comprising a switch housing being formed with at least one guide groove and one slideway at an inner side thereof; a first contact plate and a second contact plate that are fastened to the switch housing, the first contact plate being provided with a first contact and the second contact being connected to a deformable bi-metallic strip provided with a second contact that opposes to and is spaced from the first contact at an appropriate distance. This invention further comprises a key that is provided with a first protrusion engaging the guide groove within the switch housing such that the key is only slidable along the guide groove, the key having an inner serrate edge; and a cylindrical insulative housing that is slidable in the switch housing and has an end being formed with a serrate edge matching the serrate edge of the key so as to subject rotation of the cylindrical insulative housing when the key is being pushed.

Abstract: The thermal circuit breaker and switch has fixed and movable contacts, and non-conductive contact and trip actuators. The movable contact is provided on the free end of a lever arm that normally biases the movable contact toward its open position. The contact actuator transfers movement from a rocker or operator to the movable contact arm when no overload condition exists. The trip actuator is L shaped and rotates in a socket when engaged by a thermally sensitive bi-metallic element so as to allow one end of the contact actuator to float freely, allowing the movable contact arm's bias to open the circuit. The bi-metallic element is so positioned as to engage and rotate the trip actuator only when the bi-metallic element is deformed due to an overheat condition that occurs with an overcurrent. A compression spring acts between the upstanding legs of the trip actuator and the underside of the rocker thus biasing the rocker to the `off` position and biasing the trip actuator to the `reset` position.

Abstract: This invention is related to an auto tripping multi-state key switch, comprising a switch housing being formed with at least one guide groove and one slideway at an inner side thereof; a first contact strip and a second contact strip both fastened to the switch housing, the first contact strip including a first contact and the second contact strip including a second contact; a bi-metallic strip having thereon a third contact and being connected to a connection plate include thereon a fourth contact; a key being provided with at least one first protrusion thereon for engaging the guide groove within the switch housing, the key having an end that is formed with a serrated edge; a rotary housing being provided with at least one second protrusion thereon for engaging the guide groove and the slideway allowing sliding movement of the rotary housing within the switch housing, the rotary housing having a top end being formed with a serrated edge that cooperates with the serrated edge at the bottom of the key, and th

Abstract: The thermal circuit breaker and switch has fixed and movable contacts, and non-conductive contact and trip actuators. The movable contact is provided on the free end of a lever arm that normally biases the movable contact toward its open position. The contact actuator transfers movement from a rocker or operator to the movable contact arm when no overload condition exists. The trip actuator is L shaped and rotates in a socket when engaged by a thermally sensitive bi-metallic element so as to allow one end of the contact actuator to float freely, allowing the movable contact arm's bias to open the circuit. The bi-metallic element is so positioned as to engage and rotate the trip actuator only when the bi-metallic element is deformed due to an overheat condition that occurs with an overcurrent. A compression spring acts between the upstanding legs of the trip actuator and the underside of the rocker thus biasing the rocker to the `off` position and biasing the trip actuator to the `reset` position.

Abstract: A small-sized simple switch for circuit protection of the present invention is simple in structure and easy to operate, and can be readily switched for safety protection of circuits. An alloy plate of the present invention is highly resilient. When in overload, the alloy plate expands and becomes deformed due to the different thermal expansion coefficient and is deformed upward to become disengaged from a wire connecting pad with which it is originally in contact, causing the switch to be switched from the "ON" condition to the "OFF" condition. The alloy plate pushes a lever pivoted to the moving end of the alloy plate to move up such that the lever pushes one end of a pivoted reset button to move up. A user only has to depress the reset button and the switch will be again in the "ON" condition such that repeated ON/OFF conditions of the protection circuit can be effected.

Abstract: A protective apparatus for an electrical installation, includes a device for connecting the protective apparatus to an electrical installation in parallel intermediate phase and zero and under no current and temperature-sensitive disconnection element for disconnecting the electrical circuit when a predetermined temperature for the electrical circuit is attained. The temperature-sensitive disconnection element, preferably, operates the actuating a leakage relay when the predetermined temperature is reached.

Abstract: A temperature-dependent switch comprises a temperature-dependent switching mechanism having an electrically conductive spring element carrying a movable contact element. A first counter-contact is provided that coacts with said movable contact element to constitute a first switching contact pair that is opened and closed as a function of the temperature of the switching mechanism. A first heating resistor is provided for influencing the temperature of the switching mechanism at least in one switching state of the latter. The first heating resistor is provided on the movable contact element.

Abstract: A circuit overload protective device includes a body having a button pivotally disposed thereto and a bimetallic strip disposed thereto which has a first contact point disengagably contacting a second contact point on the body. A first member and a second member are respectively connected to an underside of the button, wherein the first member has a leg extending therefrom so as to be shifted into a curved recess defined in a first inner side of the body when the bimetallic strip is deformed, and the second member has a distal end thereof connected to the first contact point. A third member is disposed to a second inner side of the body and a spring is biasedly connected between the first member and the third member.

Abstract: A thermal switch assembly for use in electric lamps includes a bimetal element and a resilient conductor such as a tungsten wire. The conductor is mounted at an angle in the range of about 30.degree. to 45.degree. with respect to the plane of movement of the bimetal element and at an angle of about 90.degree. with respect to the longitudinal axis of the bimetal element. The edge of the bimetal element contacts the conductor at a closure temperature and moves with a sliding action along the conductor as the temperature increases above the closure temperature. As a result, the switch contacts are self cleaning. Since the switch components are subjected to very little stress at elevated temperatures, the switch assembly has a long operating life. The bimetal element and the conductor can be affixed to a mounting frame which facilitates installation of the thermal switch assembly.

Abstract: The electrical motor protector includes a housing being constructed of an electrical conductive material and having a first electrical contact disposed therein. Within the housing, a movable cantilever assembly is disposed and carries a second electrical contact thereon. Upon malfunction or overheating of the motor, the motor protector will break electrical connection between the first and second contacts to thereby interrupt electrical current to the motor, to render the motor inoperative.The cantilever assembly will be responsive to temperature wherein overheating of the motor will act to break the electrical connection between the first and second contacts, after which the motor will have a chance to cool before electrical connection is remade. The cantilever assembly includes first and second cantilevers which act in conjunction with one another to increase the cycle time of the device as well as providing a variety of other benefits and advantages.

Abstract: An improved low-cost circuit breaker mechanism is provided which dispenses with the complicated and costly conventional use of latch mechanisms for realizing the tripping action. The circuit breaker mechanism essentially comprises an input electrical terminal having an associated contact where current is received, an output electrical terminal where current is delivered out of the breaker, and a conductive deformable section cantilever blade formed of thermostat metal and adapted to establish a conductive current path between the input contact and the output terminal. The cantilever blade is disposed in a normally closed position with a first end affixed to the output terminal and a second free end contacting the input contact, and is adapted to deflect from its normal closed position to an open position for interrupting current flow when the temperature of the cantilever blade increases as a result of the monitored current exceeding a threshold value.

Abstract: An extended life incandescent lamp which employs thermal, voltage, or radiation activated differential switching to substitute a series-connected reserve filament for an inoperative primary filament without increasing the normal in-rush current.

Abstract: A self-contained switch unit for controlling a remote illuminating lamp has, in a common housing, a main ON/OFF switch, and has an emergency signal ON/OFF switch in a common housing, and has a visible pilot lamp. The main ON/OFF switch controls the ON or OFF mode of the illuminating lamp. The emergency signal ON/OFF switch functions, when the main ON/OFF switch is in the ON mode, to cause the controlled illuminating lamp to flash as a signal. When the controlled lamp is lighted, the pilot lamp is dark. When the controlled lamp is dark, the pilot lamp is lighted. When the controlled lamp is in the flashing mode, the pilot lamp also is in a flashing mode.

Abstract: A switch has staggered terminals for better breakdown performance. An integral housing is used for close tolerances. Coaxial alignment provides for smooth operation. A heat operated actuator is disposed in the housing to trip when the current exceeds a selected amount.

Abstract: The control device has a power regulator for the timed power to the heating system of the electrical apparatus. The heating system is provided with a temperature sensor which, up to a given desired temperature, bridges the power regulator with the aid of a temperature switch, so that full power is supplied to the electrical apparatus heating system. On exceeding the desired temperature, power is supplied to the electrical apparatus via the power regulator.The temperature sensor is additionally heatable by an auxiliary heating system to obtain a variable changeover temperature of the temperature switch (22).The auxiliary heating system is preferably always switched on when the heating system of the power regulator is switched off.

Abstract: A thermally responsive electric switch for protecting electric motors comprises two sheet metal switch terminal members, one switch member having ear portions deformed around the other switch member to secure the switch members together. An intervening strip of insulation maintains electrical isolation between the two switch members and may be impregnated with adhesive to bond the switch members. One switch member mounts a thermally responsive bimetallic actuator carrying a movable contact and the other mounts a fixed contact. The fixed contact projects through an aperture in the insulation, such aperture registering with an aperture in the switch member carrying the movable electrical contact so that the electrical contacts engage by way of the registering apertures; thus the contacts are disposed in a protected position. Interengaging recesses and dimples may be provided in the switch members to prevent relative rotation therebetween.

Abstract: A bimetallic circuit breaker with an electrical insulating slide interposed between the contacts thereof in the contacts open position in which the terminals, the bimetallic element, the insulator slide, the button (connected to the slide) and the spring biasing the button and the slide to the contacts open position of the circuit breaker are all carried by one of the terminals so that they may all be preassembled together and inserted into the housing for the circuit as one sub-assembly.

Abstract: A combination thermostat tip switch assembly in which a bimetal member carrying a double-faced contact is mounted in a stack assembly between two resilient contact leaves each carrying an electrical contact adapted to mate with the double-faced contact. The stack is mounted on a rigid base member which supports an adjusting mechanism adapted to cooperate with one of the contact leaves so as to provide an adjustment of the operating temperature of the thermostat. A position sensitive mechanism in the form of a pendulum is mounted on one of the contact leaves and cooperates with the other contact leaf to move the two away from one another.

Abstract: The switch includes a generally J-shaped, bimetallic switch arm having two, spaced, parallel legs, one of which is longer than the other. The shorter leg is welded at its outer end to a metal boss, which is formed on the face of a mounting bracket, and thus supports the longer leg above the face of the bracket so that a first contact on the outer end of the longer leg overlies, and is normally engaged with, a second contact, which is mounted on said bracket to be insulated therefrom. The high expansion side of the switch arm faces downwardly to confront the bracket, and since the shorter leg responds more rapidly to temperature changes than the longer leg, it tends to resist movement of the longer leg between open and closed positions and thereby prolongs the time the switch arm remains in either position.

Abstract: An improved thermal switch permitting large temperature excursions beyond the design closure temperature without stressing the switch material beyond its elastic limits. It combines a bimetal portion with a spring portion through which movement is transmitted, the former providing sufficient deformation for closure at design temperature, and the latter accommodating excess deformation beyond closure caused by high temperature. It is particularly useful in metal halide lamps having gas filled outer envelopes and requiring shorting of an auxiliary starting electrode to the adjacent main electrode during operation.

Abstract: A combined thermostatic switch and tilt switch is disclosed which is of the stack type with slow make and break contacts. A temperature responsive element such as a bimetal actuates a set of contacts and an attitude responsive means such as a swingable pendulum also actuates a set of contacts. These two responsive means may actuate the same set of contacts or may actuate different sets of contacts in various embodiments of the invention, but a second set of contacts is provided in the switch as a standby set of contacts which may be actuated by one of the responsive means in the event that the first set of contacts fails to be actuated, e.g. by being welded together or some other malfunction. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.

Abstract: A circuit breaker device which is particularly useful with direct current such as in an automotive application comprises a main creep-acting thermostatic strip member mounted on a second auxiliary U-shaped thermostatic member, the U-shaped member being attached to the strip with the high and low expansion layers being dissimilar or reversed in order to obtain increased contact force prior to actuation and faster contact opening and in effect, greater differential after actuation. One leg of the U-shaped thermostatic member is mounted on a base plate, the other leg cantilever mounts the thermostatic strip. A contact is located on the free distal end of the thermostatic strip and is adapted to move into and out of engagement with a stationary contact supported on the base plate but electrically insulated therefrom. A special insulator pad mounts the stationary contact and is received on and locked in place on the base plate.