Abstract: A temperature control switch comprises a switch casing, which contains a springy slice, where the springy slice is provided with a thermostatic bimetal strip on its bouncing end. The thermostatic bimetal strip is provided with an electric heating device, where the first end and second end of the device are respectively connected in series between a first control terminal and the thermostatic bimetal strip. The elevated end of the thermostatic bimetal strip links one end of an uplifted metal slice to form an incompletely fixed link point, while the other end of the uplifted metal slice features a swaying contact, which corresponds to the contact point that a second control terminal joins. When subjected to heat, the one end of the thermostatic bimetal strip deforms, enabling the swaying contact to separate from the contact point, thus preventing the contact point from being damaged by the heat.

Abstract: A thermal actuator includes a thermal detector, an actuator unit and a connecting circuit for electrically connecting the thermal detector in parallel with the actuator unit. The thermal detector includes a first contact member and a second contact member normally remained in contact with the first contact member. However, the second contact member will bend to uncontact with the first contact member when an overheated or over-cold temperature occurred around the thermal detector, so that the current normally flowing through the thermal detector will flow to the actuator unit too. Therefore, a heat wire wrapped around an actuating piece of the actuator unit generates heat to increase the temperature around the actuating piece. When the temperature around the actuating piece increases to a predetermined extent, the actuating piece bends so as to provide an actuating action.

Abstract: A temperature control system for electric range surface heating elements including an infinite switch electrically coupled to a surface heating element and a second switch, which selectively couples 120 VAC or 240 VAC power across the infinite switch and heating element. Alternatively, the second switch selectively couples either the infinite switch or an electronic controller to a surface heating element, wherein the electronic controller has timing circuits for cycling power supplied to the surface heating element according to a preset timing scheme within the timing circuits.

Abstract: A circuit breaker assembly, which is responsive to both current overload and thermal overheat or over-cold, includes a circuit breaker switch containing a current release device arranged in a housing to be responsive to a current overload and operative to permit a respective contact spring to move a corresponding movable contact away from a fixed contact upon the occurrence of a current overload and independently of the position of a switching rocker; and a thermal release actuator received in the housing for can automatically providing an actuating action to operate another respective contact spring to move another corresponding movable contact away from another fixed contact when a temperature of a predetermined surrounding zone is overheated or over-cold.

Abstract: A thermal actuator includes a thermal detector, an actuator unit and a connecting circuit for electrically connecting the thermal detector and the actuator unit. When a second contact member is normally remained uncontact with a first contact member of the thermal detector, the thermal actuator is an open circuit and not function. However, when the second contact member bends to contact with the first contact member due to an overheated or over-cold temperature around the thermal detector, the thermal actuator is in a close circuit and the electric current flows to an actuator unit thereof. A heat wire wrapped around an actuating piece of the actuator unit generates heat to increase the temperature around the actuating piece. When the temperature around the actuating piece increases to a predetermined extent, the actuating piece bends so as to provide an actuating action.

Abstract: A single pole double throw thermostatic switch has a pair of fixed contacts on opposite sides of a movable contact. A U-shaped bimetal member having a pair of spaced end portions has one end portion attached to a switchcase and the other end portion carries the movable contact.

Abstract: Control device for at least two luminous condition indicating signals (30, 41) mounted on a domestic electrical appliance provided with a quick opening adjustable thermostat (2) which passes over center. An insulating support (13, 14, 15) receives a thermostat arm (11), a blade (16) forming a fixed contact, a movable blade (7) provided with a flexible tongue (20) on which bears an insulating plug (22) controlled by a rotatable screw (10) permitting obtaining a predetermined temperature, and another movable blade (8) fixed to the movable blade (7) and whose free end bears against the fixed contact as well as an insulating partition (9) fixed to the bimetal (6) and controlling the movable blades (7 and 8). The blade forming a fixed contact (16) and the movable blades (7 and 8) are fixed to the insulating support, connected respectively to electrical terminals by electrical connections (3, 4) and supply the two luminous signals (30, 41).

Abstract: A thermostat is disclosed having a bimetallic strip actuating a single pole, double throw switch, one throw to sense temperatures below the lower limit of a set point range and the other throw to sense temperatures above the upper limit of the set point range. In typical applications one throw for actuating heating and the other throw for actuating cooling. The bimetallic strip is provided with typically a cantilever support at one end and extends between dimensional spaced double throw contacts at the opposite end. Spacing of the contacts determines magnitude of the set point range. An intermediate beam type support is provided between the cantilever support and double throw contacts. This beam support consists of an adjustment screw acting on one side of the bimetallic strip and a spring directly opposing the adjustment screw.

Abstract: A single bimetal automatic changeover thermostat has heating, cooling and changeover switches mounted to the bimetal. A single control point adjustment lever for rotating the bimetal has separate shaped heat and cool set point indicators which are movable along a temperature scale.

Abstract: A thermostat for controlling the electrical heating element of an appliance has a user-activated control shaft for controlling the overall operation of the appliance. The thermostat includes a first switch controllable by a temperature sensing element for turning the heating element on and off. When the control shaft is turned to an off position, the shaft disables the operation of the first switch, maintaining it in an open condition. The thermostat also has a second switch which operates a pilot light for indicating when the appliance is on. The second switch is continuously open when the control shaft is in the off position and continuously closed when the control shaft is in an on position.

Abstract: A thermostat having heat anticipation uses a temperature responsive bimetallic element for effecting a thermostat contact closure during a heating operation controlled by the thermostat with an electrical contact carried by terminal strip positioned adjacent to the bimetallic element and formed from a high resistance stainless steel material. The resistance of the terminal strip is enhanced by lengthening the current path into a convoluted path utilizing notched out areas of the terminal strip. The resistance heat generated in the terminal strip by the current flow therein during the heating operation provides the desired heat anticipation for the operation of the thermostat by the bimetallic element by increasing the temperature sensed by the element.

Abstract: A thermally responsive switch comprises a housing enclosing a contact arm bearing a fixed contact and a thermally responsive snap-acting element designed to move and return with snap action depending upon the degree of switch self-generated heat or the ambient temperature. One end of the snap-acting element carries a movable contact and its other end is the supporting portion connected to a metallically elastic member mounted in the housing. To a stationary member integrated with the housing, an end support element and a central support element are respectively mounted. The end support element engages the supporting portion of the snap-acting element against the elastically urging force of the elastic member to push in one direction, while the central support element engages a middle portion of the snap-acting element to push in the opposite direction.

Abstract: A contact arrangement includes an elongated striker reciprocable in direction of its elongation and a pair of movable contacts moved by the striker and cooperating with adjacent stationary contacts so that during reciprocation of the striker between two end positions one of said movable contacts engages the stationary contact adjacent thereto while the other movable contact is spaced from the adjacent stationary contact, and vice versa.In order to obtain during the reciprocation of the striker up to the moment of switching the contacts a high contact pressure, the striker is provided with a guide extending transverse to its reciprocation direction for a movable guide body. The movable guide body is mounted on one end of a link member the other end of which is articulately engaged with an angle lever in the region of the knee of the latter.

Abstract: An electric heating system employs a control unit including means to connect a resistance heater to a three pole power source and a switch to switch the connections between full voltage and low voltage as temperature is more than or less than several degrees colder than the set temperature. More uniform heating, greater comfort and significant energy savings results.

Abstract: A low cost multiphase motor protector which employs only one movable contact attached to the center of a bimetallic snap-acting disc. After the disc is calibrated and upon the application or dissipation of heat, the one movable contact either connects or disconnects with a plurality of stationary contact terminals simultaneously.