초록 ▼

A switching assembly includes an insulative substrate upon which is carried a plurality of conductive paths respective portions of which are selectively bridged upon depression of a resilient conductive contact element. That contact element is generally in the shape of a dome and has a central regio

A switching assembly includes an insulative substrate upon which is carried a plurality of conductive paths respective portions of which are selectively bridged upon depression of a resilient conductive contact element. That contact element is generally in the shape of a dome and has a central region of substantially planar conformation from which the remainder of the dome slants integrally downward and outward to a lower marginal rim portion. The dome-shaped element is disposed adjacent to the substrate with at least a portion of its rim portion electrically and physically contacting one of the portions of one of the paths. The central region is generally in registry over another of the portions in another of the paths so as to enable connection between the central region and that other portion upon depression of the central region.

대표청구항 ▼

In a switching assembly which includes an insulative substrate upon which is carried a plurality of conductive paths respective portions of which are selectively bridged upon depression of a resilient conductive contact element, the improvement comprising: said contact element being generally in the

In a switching assembly which includes an insulative substrate upon which is carried a plurality of conductive paths respective portions of which are selectively bridged upon depression of a resilient conductive contact element, the improvement comprising: said contact element being generally in the shape of a dome but having a central region of substantially planar conformation from which the remainder of said dome slants integrally downward and outward to a lower marginal rim portion; and said dome-shaped element being disposed adjacent to said substrate with at least a portion of said rim portion being in electrical and physical contact with one of said portions of one of said paths, said central region being generally in registry over another of said portions in another of said paths to enable connection between said central region and that other portion upon depression of said central region.