Patent ID: 9159509
Filing Date: 2015-10-13
Classification: H01H

Abstract:
1. A dome sheet carrier apparatus for use with a keypad comprising: a first carrier portion having a first plurality of dome-like structures, each of the first plurality of dome-like structures to overlay at least one of a plurality of metal domes, the plurality of metal domes of a respective one of the first dome-like structures to directly engage one or more traces of a circuit board when the dome sheet carrier apparatus is coupled to a circuit board and the respective one of the first dome-like structures collapses toward the circuit board; and a second carrier portion adjacent the first carrier portion, the second carrier portion having a second plurality of dome-like structures comprised of a non-metallic material, each of the second plurality of dome-like structures having a plurality of contacts composed of a conductive material adjacent an apex of the second plurality of dome-like structures, the plurality of contacts of a respective one of the second dome-like structures to directly engage, independent of a metal dome, one or more traces of the circuit board when the dome sheet carrier apparatus is coupled to the circuit board and the respective one of the second plurality of dome-like structures collapses toward the circuit board, and the first and second carrier portions are formed as a unitary sheet or part.