Patent ID: 7341397

Claim:
A utility trailer and safety barrier movable by a towing vehicle comprising in combination: a frame having opposed parallel side beams, each side beam having a first forward end portion and a second rearward end portion, the frame carrying at least one wheel truck to support the utility trailer for locomotion, and having an open bottom work area in the forward end portion of the frame, a deck at a medially rearward position and a transport platform at the rearward end portion of frame, the transport platform having an “L” shaped configuration to carry mounting brackets for a telephone extension linkage and support a deployable impact attenuator; hitching means at the forward end portion of the frame for releasably connecting a towing vehicle, the hitching means providing a perimeter around the open bottom work area at the forward end portion of frame; telephone extension linkage having plural pairs of pivotally interconnected cross link members with at least one end of each forward pair of cross-link elements pivotally connected to the mounting brackets of the transport platform, and both ends of the rearward pair of cross-link elements opposite the transport platform pivotally connected to a deployable impact attenuator having wheels to facilitate movement to and from the transport platform; at least one lighted traffic information and directional indicator panel carried by the utility trailer; a hoist arch having an upper horizontal member supported by similar opposed depending vertical members each supported on a roller carriage carried by laterally opposed rails carried on the inner sides of each side beam and extending from the forward end portions of the side beams rearwardly to the rearward deck to provide elongate motion of the hoist arch relative to the utility trailer frame; and a hoist carried by upper horizontal beam of the hoist arch for motion transversely along the upper horizontal beam.