Abstract: A non-resetable, bimetallic thermal switch. The bimetallic thermal switch includes a bimetallic element, first and second electrical contacts, and a component for electrically connecting and disconnecting the first and second electrical contacts based on movement of the bimetallic element. The switch also includes a non-resetable component configured to disallow electrical reconnection of the first and second electrical contacts after an electrical disconnection has occurred between the first and second electrical contacts.

Abstract: A non-resetable, bimetallic thermal switch. The bimetallic thermal switch includes a bimetallic element, first and second electrical contacts, and a component for electrically connecting and disconnecting the first and second electrical contacts based on movement of the bimetallic element. The switch also includes a non-resetable component configured to disallow electrical reconnection of the first and second electrical contacts after an electrical disconnection has occurred between the first and second electrical contacts.

Abstract: A shape memory actuator includes a shape memory actuator element for biasing an actuated member from an initial rest position to an operative position against the action of return spring means. Holding means are associated with the actuator element for holding the actuated member in its operative position even when the shape memory actuator element is deactivated. These holding means can be deactivated with a subsequent activation of the shape memory actuator element, allowing the actuated member to return to its rest position.

Abstract: A thermostatic switch has a housing and a temperature responsive bimetallic disc located in the housing and responsive to a predetermined temperature for exerting a flexing action. A fixed contact member is located in the cavity along with a movable contact member which is biased and movable between a switch-closed position in which it makes electrical contact with the fixed contact member and a switch-open position in which it is spaced from the fixed contact member. An actuating member is located in the housing, and is responsive to flexing movement of the disc for moving the movable contact member from the switch-closed position to the switch-open position. A hook portion is mounted within the cavity of the housing, the hook portion engaging an arm portion of the movable contact member upon the movement of the movable contact member to its switch-open position and entering an opening of the arm portion for retaining and maintaining the movable contact member in its switch open position.

Abstract: A thermal switch for breaking an electrical circuit to prevent overheating s described. The thermal switch includes a bimetallic thermocouple in the form of a snap disc and a leaf spring. The leaf spring supports an electrical contact. When the leaf spring is in its stressed position, the electrical contact keeps an electrical circuit closed. When the temperature rises too high, the snap disc snaps in a direction which causes the leaf spring to move into its unstressed position, thereby opening the circuit. When the temperature has decreased, the switch can be reset.

Abstract: A thermal switch having a temperature sensor formed of a thermal bimetallic nap disk, the temperature sensor cooperating via a transmission member with a contact system which has a contact carrier bearing at least one movable contact, the movable contact resting under spring force in its closed-circuit position of rest against at least one fixed contact. A locking member is provided which, upon a temperature-caused movement of the transmission member, is displaceable under spring force in the direction towards the transmission member at least approximately perpendicular to the direction of displacement of the transmission member and holds the contact carrier in its open-circuit position after temperature-caused movement of said support.

Abstract: A circuit breaker composed of a contact spring fixed at one end, carrying a movable contact at its free end and biassed to urge the movable contact away from an associated fixed contact, a switching rocker pivotally mounted to selectively move the spring into a contact closing position, and a release device arranged to move the spring into the contact opening position independently of the position of the rocker, is further provided with a latching lever which extends approximately parallel to the contact spring, is mounted to be pivotal in a direction parallel to the direction of movement of the spring and of the rocker, and is operatively connected between the spring, the rocker and the release device.