Patent ID: 6586671
Filing Date: 2003-07-01
Classification: H02G

Abstract:
A track signal terminal apparatus comprising:a track signal terminal device mounted above-ground onto a conductive support post having a lower portion inserted into a ground surface adjacent to a set of railroad tracks, wherein said track signal terminal device is a railroad signal shunt device or a tunable joint coupler device that receives a track signal from an unshielded twisted pair railroad track wire which is coupled across said set of railroad tracks to detect oncoming train traffic; non-conductive mounting means for mounting the track signal terminal device onto said conductive support post in an electrically insulated manner; a removable electrostatic shield suspended from said conductive support post, said removable electrostatic shield surrounding an above-ground portion of the unshielded twisted pair railroad track wire and grounded to said conductive support post; a block terminal attached to said conductive support post, said block terminal including: coupling means for electrically coupling the unshielded twisted pair railroad track wire with the track signal terminal device; and coupling means for electrically coupling a lightning arrestor means with said conductive support post; and a removable housing attached to the conductive support post for providing an exterior encasement for said block terminal, the track signal terminal device, and said suspended, removable electrostatic shield.