Abstract: A trailer crash attenuation assembly includes a longitudinal hollow member adapted to act as a hydraulic cylinder at one end, hydraulic fluid disposed in the hydraulic cylinder and a tank connected to the hydraulic cylinder to receive and store said hydraulic fluid expressed from the hydraulic cylinder. A first longitudinal telescopic member is adapted to slide into and out of the longitudinal hollow member and is adapted to act a piston. Two other longitudinal hollow members are positioned substantially parallel to and on either side of the first longitudinal hollow member and are connected to the first longitudinal hollow member. Two telescopic members are adapted to slide into and out of the two other longitudinal hollow members respectively. A casing is connected at its proximal end to all three longitudinal hollow members, is adapted at its distal end to receive a crash cushion; and has a pair of wheels.

Abstract: A trailer crash attenuation assembly includes a longitudinal hollow member adapted to act as a hydraulic cylinder at one end, hydraulic fluid disposed in the hydraulic cylinder and a tank connected to the hydraulic cylinder to receive and store said hydraulic fluid expressed from the hydraulic cylinder. A first longitudinal telescopic member is adapted to slide into and out of the longitudinal hollow member and is adapted to act a piston. Two other longitudinal hollow members are positioned substantially parallel to and on either side of the first longitudinal hollow member and are connected to the first longitudinal hollow member. Two telescopic members are adapted to slide into and out of the two other longitudinal hollow members respectively. A casing is connected at its proximal end to all three longitudinal hollow members, is adapted at its distal end to receive a crash cushion; and has a pair of wheels.

Abstract: A trailer crash attenuation assembly includes a longitudinal hollow member adapted to act as a hydraulic cylinder at one end, hydraulic fluid disposed in the hydraulic cylinder and a tank connected to the hydraulic cylinder to receive and store said hydraulic fluid expressed from the hydraulic cylinder. A first longitudinal telescopic member is adapted to slide into and out of the longitudinal hollow member and is adapted to act a piston. Two other longitudinal hollow members are positioned substantially parallel to and on either side of the first longitudinal hollow member and are connected to the first longitudinal hollow member. Two telescopic members are adapted to slide into and out of the two other longitudinal hollow members respectively. A casing is connected at its proximal end to all three longitudinal hollow members, is adapted at its distal end to receive a crash cushion; and has a pair of wheels.

Abstract: A trailer crash attenuation assembly includes a longitudinal hollow member adapted to act as a hydraulic cylinder at one end, hydraulic fluid disposed in the hydraulic cylinder and a tank connected to the hydraulic cylinder to receive and store said hydraulic fluid expressed from the hydraulic cylinder. A first longitudinal telescopic member is adapted to slide into and out of the longitudinal hollow member and is adapted to act a piston. Two other longitudinal hollow members are positioned substantially parallel to and on either side of the first longitudinal hollow member and are connected to the first longitudinal hollow member. Two telescopic members are adapted to slide into and out of the two other longitudinal hollow members respectively. A casing is connected at its proximal end to all three longitudinal hollow members, is adapted at its distal end to receive a crash cushion; and has a pair of wheels.

Abstract: A mobile vehicle for enabling placement and retrieval of markers on a road surface includes a cargo bed coupled to the mobile vehicle and a well area coupled to the cargo bed, the well area being sized to accommodate an individual and including a retainer to prevent inadvertent egress while enabling the individual positioned within the well area to manually place and retrieve markers from the cargo bed onto the road surface.

Abstract: There is disclosed a mobile unit operative for securely storing and placing markers onto a surface, comprising a bed coupled to a portion of the mobile unit comprising a planar surface for storing the markers; a well area coupled to a rear portion of the bed and having an at least one well structure coupled to the first planar surface, the well structure having a bottom and side walls for housing a person for placing or retrieving said markers on the surface, wherein the at least one well structure and the first planar surface are positionally aligned to permit retrieval/storage of a marker from the first planar surface for placement/retrieval on the surface via said person located within the well.

Abstract: A lift apparatus adapted to be mounted on a vehicle for supporting an attenuator cushion comprising a vehicle mounted support frame; a support member coupled to said support frame and extending outward from said vehicle; and a mounting bracket to which the attenuator cushion is coupled, the mounting bracket pivotably coupled to the support member along an axis to pivot between a horizontal deployed position in which the cushion extends generally outward from the vehicle, and a vertical position in which the cushion extends vertically upward, wherein the mounting bracket engages the support member along a majority of the width of the mounting bracket when the cushion is in the vertical position.

Abstract: There is disclosed a mobile unit operative for securely storing and placing markers onto a surface, comprising a bed coupled to a portion of the mobile unit comprising a planar surface for storing the markers; a well area coupled to a rear portion of the bed and having an at least one well structure coupled to the first planar surface, the well structure having a bottom and side walls for housing a person for placing or retrieving said markers on the surface, wherein the at least one well structure and the first planar surface are positionally aligned to permit retrieval/storage of a marker from the first planar surface for placement/retrieval on the surface via said person located within the well.

Abstract: A crash attenuator adapted to be mounted on a vehicle to attenuate some of the energy of an impact, the crash attenuator includes a frame adapted to be mounted on a vehicle; a slider mounted on the frame to slide in response relative to the frame toward the vehicle in response to an impact; a collapsible, energy-absorbing member positioned between the slider and the frame to absorb energy as the slider telescopes relative to the frame; and a crushable, energy-absorbing crash cushion on the outboard side of the slider.

Abstract: A crash attenuator adapted to be mounted on a vehicle to attenuate some of the energy of an impact, the crash attenuator includes a frame adapted to be mounted on a vehicle; a slider mounted on the frame to slide in response relative to the frame toward the vehicle in response to an impact; a collapsible, energy-absorbing member positioned between the slider and the frame to absorb energy as the slider telescopes relative to the frame; and a crushable, energy-absorbing crash cushion on the outboard side of the slider.