B - Operations – Transporting – 60 – P
Patent
B - Operations, Transporting
60
P
B60P 3/14 (2006.01) B66F 11/04 (2006.01)
Patent
CA 2161562
A work platform assembly and trailer system for transporting and vertically positioning the work platform assembly adjacent bridge deck surfaces to be treated. The trailer includes front and rear lifting assemblies for supporting, and being removably attached to, an end of the work platform assembly. The lifting assemblies include vertically oriented lifting cylinders for vertically positioning the work platform assembly immediately adjacent the bridge deck surfaces to be treated. The trailer includes wheels and a hitch to facilitate the transport of the work platform assembly to the site of the bridge deck. The work platform assembly is modular in construction so as to be configurable according to the configuration and size, particularly width, requirements of each bridge and to metal surfaces thereof which are to be reconditioned by abrasive stripping and recoating. An adjustable curtain frame and/or other devices enable sealed enclosure of bridge surfaces to be treated and optimum access of workers to those surfaces during the treatment. Airborne residue is evacuated by vacuum into a dust collection system for subsequent disposal in a manner which does not contaminate the environment, while heavier residue and spent abrasive grit is collected and positively moved off of the platform assembly into a residue separation system for subsequent, environmentally safe separation and reconstitution of the grit for reuse. The dust collection and residue separation systems may be removably attached to the trailer.
Wilbur James T.
Wildner Robert J.
LandOfFree
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