Abstract: An insulating floor is composed of a deck, supporting plastic beams which are mounted on an underpan, the underpan being supported on metal crossing beams, the regions between the deck, plastic beams and underpan being filled with foamed plastic providing insulation and adhesively and mechanically bonding the components together.

Abstract: A pneumatic spreader for the distribution of materials and a flow distributor for same are disclosed. The spreader includes a distribution chamber having multiple compartments with a gas inlet and material outlet defining a venturi in each of the compartments. The materials are discharged from the distribution chamber and its compartments through first conduits coupled to the respective material outlets and a plurality of second conduits communicating with each of the first conduits for receiving the materials and discharging them to the ground. A flow distributor adjacent the juncture of the first and second conduits equally divides the materials in the first conduit between the second conduits. The flow distributor includes a substantially circular plate having a plurality of openings which communicate to the second conduits and a substantially conical deflector which is adjustable both linearly and is eccentrically rotatable for adjusting the flow between the plate openings.

Abstract: A vehicle mounted spray boom assembly includes a breakaway spray boom and shock absorbing means for absorbing the shock on the boom assembly when a boom returns to normal position after striking an obstacle. The shock absorbing means includes a swing cylinder for rigging in and rigging out the spray boom and a tilt cylinder for tilting the boom when the boom has been rigged out. Upon occurrence of shock after an obstacle is struck, a portion of the hydraulic fluid in the swing cylinder is forced into the tilt cylinder to lift the spray boom to dissipate the shock. In addition, another cylinder may be provided for absorbing shock imparted to the boom due to vertical movement of the boom. Also the swing cylinder and tilt cylinder are hydraulically connected in parallel so that when rig out has been completed, pressurized hydraulic fluid continues to be ported to the tilt cylinder to elevate the end of the boom.