Abstract: A state and operation indicator for a snap switch is provided. Presently, instrumentation is often needed in order to determine if a snap switch is malfunctioning. Information may be provided on a control panel inconveniently positioned remotely as compared with the location of the snap switch itself. This disclosure provides for an indicator of the state and operation of a snap switch, which does not require the use of instrumentation, and which is proximate the snap switch. This indicator can be used in both alternating and direct current circuits. When the common terminal of the switch is energized an associated light can provide a cue that the power is on. The state and operation indicator can also have either a light associated with the normally open terminal, a light associated with the normally closed terminal, or both. These lights can respond to indicate the state and operation of the switch.

Abstract: The switch includes a printed circuit, of generally plane shape, and comprising a first face bearing a first contact pad, a second face, opposite the first, bearing a second contact pad, and a through-orifice allowing access between the first face and the second face. The switch also includes a conductor, having a first part, which cooperates with the first contact pad, and a second part, which extends between a first end, fixed to the first part, and a free second end, passing through the orifice. The second part is elastically deformable between a rest position, in which its second end cooperates with the second contact pad, and a stressed position, in which its second end is moved away from the second contact pad.

Abstract: A circuit breaker includes a shell, a movable press strip, a metal strip, a C-shaped plate spring, and three conductors. A first and a second conductor are inserted through the bottom of the shell, respectively have an upper end extending up in the shell, with a first contact point on its upper end of the first conductor, with an upper end of the second conductor connected with a metal strip, which has one end facing under a first press member of the press strip and an elastic contact strip with one end provided with a second contact point facing under the first contact point. A C-shaped plate spring has two lower ends connected with the metal strip, and a curved-up portion facing a second press member. The contact strip may disfigure by high heat caused by excessive current, curling upward to force the first contact point snap off the second contact point to cut off the circuit breaker.

Abstract: A nonrecycling reset switch has a fixed position anchor mounted on bosses in the casing for holding a resilient member of the conductive snap spring which moves between open and closed positions. A leaf spring or other resilient member is anchored adjacent the snap spring to control the force of snap over when the switch opens or is reset to the closed position.

Abstract: The invention relates to a leaf switch having a scroll spring (6) which can be hooked between a switching are elongate windows which extend in the transverse direction and into which centrally projecting tongues (3a, 2a) of the switching tongue (3) and of the spring lever (2) engage. In order to avoid an unintentional unhooking of the scroll spring (6), there is a deformation projecting beyond the tongue surface at the front section of at least one of the two tongues (3a, 2a). The said deformation can be constructed as an embossed hollow projection or as laterally bent-over tongue legs.

Abstract: Switch of the tilting blade type wherein the spring blade (35) provides for the tension of the moving blade (38) and the return of the pusher (39); under the action of the pusher(39) the spring blade (35) separates progressively from the inclined terminal (34); the inclination value is given for products in compliance with standard (DIN 41635, shape A); the closure system of the case comprises flanges which retain the cover; the shaft of the accessories is cast in a single operation.

Abstract: The switching unit of a snap action electric switch employs a contact of the type called mainplate and having a circumferentially complete frame with a substantially diametrically extending blade. The frame has two lugs which flank the median portion of the blade and can be affixed to or simply abut the bottom wall of a cupped mounting member which further receives a pusher capable of moving the median portion of the mainplate from a first end position, at a distance from the bottom wall of the mounting member, toward and through a dead-center position whereupon the median portion snaps to a second end position in which it engages a contact at the bottom wall of the mounting member. The end portions of the blade merge tangentially into the adjacent concavoconvex sections of the frame. The useful life of the mainplate is longer than that of a conventional mainplate wherein four corner portions of the frame are affixed to the bottom wall of the mounting member.

Abstract: For the purpose of mounting a switch on a circuit board and of actuating the switch, it is proposed that the biassing spring biassing the wiper into a first above dead-center position be pivoted at the same main mounting part on which the wiper is supported, that a rod be arranged to pass through the circuit board in a direction perpendicular to the direction of the wiper movement, and that the rod be seated in such a manner that it comes to bear upon the central area of the biassing spring so as to displace the latter relative to the pivot point of the spring on the wiper in such a manner that the wiper is moved into a second switching position for the time during which such action persists.