Patent ID: 6392866
Filing Date: 2002-05-21
Classification: G01R

Abstract:
A relay comprising:a chassis; a signal board mounted on the chassis and having a surface; a coil assembly, mounted in the chassis, for producing a magnetic flux when a current is supplied thereto and for ceasing production of said magnetic flux when said current ceases to be supplied thereto; a control rod mounted within the chassis above the signal board for moving along an axis passing though the coil assembly, the magnetic flux produced by said coil assembly applying a first force on the control rod in a first direction along the axis; means for applying a second force on the control rod in a second direction along the axis opposite to the first direction; and a conductive contact arm residing between the surface of the signal board and the control rod, wherein the control rod moves in the first direction when the current is supplied to the coil assembly and moves in the second direction when current ceases to be supplied to the coil assembly, and wherein the control rod contacts the contact arm with a pressure that increases when the control rod moves in one of the first and second directions and decreases when the control rod slides in another of the first and second directions.