Abstract: Disclosed is a low profile air ratchet wrench with an improved rotor geometry for use in accepting a variety of stem sizes and shapes. Also disclosed are improved stem constructions. The stem constructions employ offset spring biased balls which allow for a better securement between the stem and rotor wall.

Abstract: The present invention relates to an air driven and manual rachet wrench. The wrench of the present invention includes a rotor which is rotated by way of an oscillatory member. The oscillatory member, in turn, is driven by way of an air powered drive assembly. A star shaped aperture is centrally formed within the rotor. This aperture is adapted to accept the stems of a variety of sockets. Although the rotor only rotates in one sense, the sockets can be inserted into either of the opposing faces of the rotor. Thus, through changing the face into which the socket is inserted, both clockwise and anti-clockwise socket rotation can be achieved.

Abstract: A truck with a cab at a front end thereof and a frame situated at a rear end thereof, the truck including a flat bed adapted for supporting a vehicle thereon and securement mechanism for coupling the flat bed to the frame. The securement mechanism includes a swivel mechanism situated between the frame and the flat bed. The swivel mechanism is adapted to rotate the flat bed about a vertical axis. The swivel mechanism is further designed to rotate the flat bed about a vertical axis through a span of at least 180 degrees. A hinge is situated between the frame and the flat bed to permit the pivoting of the flat bed about a horizontal axis. Next provided is a lift mechanism situated between the frame and the flat bed for allowing the lifting of a front end of the flat bed about the axis of the hinge.

Abstract: A wheel lift assembly attachable to a hydraulic bar extending rearwardly from a tow truck comprising central coupling brackets removably attachable to the hydraulic bar of a tow truck; a central support mounted to the rearward end of the coupling brackets; a plurality of intermediate extender bars, each extender bar having a laterally interior end adjustably attached to the central support and also having a laterally exterior end; a pair of corner brackets, each having a lateral component with an interior end adjustably coupled to the exterior end of an adjacent extender bar and having a rearwardly extending component secured at a right angle with respect to the laterally extending component; a pair of J-shaped brackets each having an elongated section with an end mountable in the rearward component of the corner bracket and having a transverse section and a forwardly extending end section; and a pair of tire pads located at the internal extent of each J-shaped bracket and corner bracket in facing relationshi

Abstract: A portable jack-frame apparatus allows rescue personnel to rapidly force open a partially crushed automobile body and to passively hold open the aperture that they make so that they can remove a trapped accident victim from the vehicle. The invention provides a locking jack frame that can be: 1) inserted into a restricted opening in a car body, using a combination of pin-set telescoping extensions and a slidable lock to attain a best initial fit position; 2) used with a hydraulic actuator to forcibly make an opening large enough for rescue access; 3) employed to passively hold the opening in the enlarged position after the actuator is removed; and 4) be released and removed from the enlarged opening without further use of the hydraulic actuator.

Abstract: A roll-back, flat-bed truck comprising a cab at the front end and a frame at the rear end and a flat-bed with a curved leading edge secured thereto by securement members. The securement members include a hinge having a lower hinge half coupled to the frame adjacent to the rear end of the frame and an upper hinge half coupled to the bed. A hinge pin couples the hinge halves to allow tilting the upper hinge half and bed with respect to the lower hinge half and frame about a horizontal axis. A swivel plate is attached to the frame adjacent to the rear end of the frame and a swivel member positioned in an aperture extending through the swivel plate to allow swiveling of the bed with respect to the frame about a vertical axis. The center of curvature of the leading edge of the bed is coextensive with the axis of rotation of the swivel member.

Abstract: A roll-back flat-bed truck comprising a cab at the front end and a frame at the rear end and a flat bed secured thereto by securement member. The securement member includes a hinge having a lower hinge half-coupled to the frame and an upper hinge half coupled to the bed and a hinge pin coupling the hinge halves to allow tilting the upper hinge half and bed with respect to the lower hinge half and frame about a horizontal axis. A swivel plate is attached to the frame adjacent to the rear end of the bed. A swivel pin is positioned in an aperture extending through the swivel plate and lower hinge half to allow swiveling of the bed with respect to the frame about a vertical axis. An intermediate support is attached to the upper surface of the upper hinge half to slidably couple the bed thereto to allow for rolling the bed longitudinally with respect to the intermediate support, hinge and frame.