Illinois Tool Works Inc.

Shure Brothers Incorporated

John C Jones

Robert L Deschamps

Bruce L Graham

Ronald Schmidt

Tony R Benson

Roy Robertson

A push-button switch is provided which includes a base plate having terminals extending therethrough and solderable in a p.c. board. A housing is subsequently snap-assembled with the base plate and carries a push-button member which is reciprocable when manually pushed. Cam tracks are provided in the housing and a cam follower lever is pivotally mounted on the push-button member. The lever is accessible through an aperture in the housing for engagement with either of the cam tracks. One of the cam tracks produces momentary action, while the other produces alternate action.

Selectable switch action

A hybrid switch includes a snap-action switching portion having a butterfly-type mechanism and a solid-state switching portion formed within a single, compact housing. The solid-state switching portion is formed of an electro-electronic device consisting of a light-emitting diode and a phototransistor. Alternatively, the solid-state switching portion is formed of a bipolar transistor.

Hybrid switch with solid-state condition

A rotary switch convertible from being operable over a smaller range of angular motion, e.g. as a two-position switch, into being operable, in either of two configurations, over larger ranges of angular motion, e.g. as a three-position switch. A rotor and a stator are assembled for relative rotation. Four lugs divide a face of the stator into four quadrants. Two pairs of lugs, each comprising a removable lug and a permanent lug, are provided on a face of the rotor. The faces are juxtaposed such that relative rotation of the rotor and the stator is limited by interference between certain of the lugs on the rotor and certain of the lugs on the stator. Before removal of either removable lug, the rotor and the stator may be assembled for a smaller range of angular motion. After removal of both removable lugs, the rotor and the stator may be assembled in either of two configurations for larger ranges of angular motion.

Convertible rotary switch

An electrical switching apparatus is disclosed for making or breaking a plurality of electrical connections substantially simultaneously. The apparatus includes a planar substrate, a first set of electrical terminals arrayed on the substrate in a pattern providing mating pairs of terminals displaced by a distance, an actuator having a contact effecting surface and carrying thereon a plurality of moveable bridging contacts which are in substantial registration each with a respective mating pair of terminals. The actuator response to application of an actuating force toward the substrate to establish bridging contact by the bridging contact between each of the mating pairs of terminals substantially simultaneously. In the preferred embodiment a plurality of such switching apparati are actuated by a common actuating shaft.

Growing community of inventors

Chicago, IL, United States of America

John C Jones