Patent ID: 8232494
Filing Date: 2012-07-31
Classification: H01H

Abstract:
1. A switch comprising: a key member disposed in an initial position relative to a key matrix, such that pressure applied to said key member causes an electrical contact to be made on said key matrix, wherein a first magnet is provided in or on or as said key member; a second magnet is provided which is disposed in an initial position and arranged such that like poles of said first and said second magnet are facing each other in spaced apart relation, said first and said second magnets being arranged and configured so as to create an opposing force therebetween that acts to return said key member towards said initial position when said applied pressure is removed; and a third magnet is provided on the opposite side of said key matrix to said second magnet such that like poles of said third and said second magnets are facing each other in spaced apart relation, said third and said second magnets being arranged and configured so as to create a second opposing force therebetween that acts to return said second magnet towards its initial position when said applied pressure is removed.