Patent ID: 6037863
Filing Date: 2000-03-14
Classification: B60C

Abstract:
A transport vehicle with a cargo deck comprising:said cargo carrying deck having first and second sides, said deck having a supporting frame comprised of longitudinal frame members and cross frame members;a first tandem wheel set attached to said vehicle adjacent said first side of said deck and a second tandem wheel set attached to said vehicle adjacent said second side of said deck, each of said first and second wheel sets being comprised of first and second pneumatic tires, said first and second tires of each said wheel set being rotatably attached to an adjacent walking beam assembly having a walking beam that is substantially parallel to the ground when said first and second tires are both fully inflated, said walking beams being electrically insulated from said frame;at least one electrically grounded walking beam stop attached to said vehicle adjacent at least one end of each said walking beam, at least part of each said stop intersecting the vertical plane of said adjacent walking beam at a site located above and/or below said adjacent walking beam end when said first and second tires are both fully inflated, said site being sufficiently close to said walking beam end that said walking beam end contacts said stop upon at least one of said tires becoming at least partially deflated; anda signalling device that is actuated when one of said walking beam ends contacts an adjacent walking beam stop.