Abstract: The mounting structure includes a pair of side abutments, upper and lower abutments, and front and rear abutments into which a rectangular parallelepiped body of a leaf spring switch is snap fit.

Abstract: The mounting structure includes a block having a bore therein and a stud thereon, their axes being substantially parallel. A leaf spring switch has two leaf springs carried by a body having a pair of bores. The surfaces of the block and the body are in juxtaposition, with the stud extending into one of the bores in the body and a threaded fastener extending through the other of the bores in the body and into the bore in the block.

Abstract: A multiple cantilever spring contact switch has a plurality of cantilever spring contacts, in one or more series, with the contacts of each series clamped between surfaces which provided a predetermined relative inclination of the contacts. A pivotal member is mounted on the switch assembly for actuation by an operating member, the pivotal member in turn actuating the contacts. The contact between operating member and pivotal member is localized so that misalignment between operating member and the switch assembly does not affect actuation of the contacts. Such misalignment can occur when the switch assembly or operating member or both are mounted on printed circuit boards. The switch is particularly suitable for a hook switch of a telephone.

Abstract: An electric switch comprising a plurality of electrically conductive resilient strips secured to an electrically insulating base member and a supporting member for supporting the strips in such a manner that these strips extend substantially in parallel with each other at a given distance and store resilient force in a direction opposite to that of an operational force. An electrical contact is made by displacing one of the resilient strips toward the other strip against the stored resilient force. In a preferred embodiment prior to securing the strips to the base member the strips have been bent in the direction opposite to the acting direction of the operational force.

Abstract: Switch contacts are placed on a thermoplastic stator body in their desired positions and a thermoplastic holding member is pressed onto the switch contacts. The holding member is then ultrasonically or otherwise thermally welded to the stator body in such a manner that the melted portions of the holding member between the switch contacts are deformed into contact with and welded to the stator body. A groove is formed in the stator body perpendicular to the switch contacts into which excess material of the holding member flows during the welding process.

Abstract: Contact springs are damped against resilient bouncing in that thin plastic foil covers one or both sides of the spring. The foil, when extending into the zone of clamping one end of the spring, is used to maintain specific tolerances in contact positioning. The foil should have low cold flow characteristics and high reversible elasticity, such as folacron or polysulphonic plastic.

Abstract: The invention relates to an electrical type contact switch assembly. The assembly includes an insulated contact carrier having a U-shaped portion with spaced apart walls. A slot for receiving a leaf spring extends transversely through the walls. Mutually facing depressions formed in the walls straddle the slot and have oppositely inclined surfaces. A leaf spring disposed in the slot has a resiliently hinged flap extending at an acute angle relative to the plane of the spring. The flap is in resilient biasing engagement with the inclined surfaces of the contact carrier. The flap is of trapezium shape and is an integral part of the spring.