Abstract: A portable self-contained device for heating and spraying a coating material from a tank onto a surface, the device having a fluid fuel supply for heating the material, which fuel in addition to heating drives an engine that is coupled to a generator device for supplying electrical energy to heating elements in a spray hose and nozzle that communicate with the tank and to a main pump which causes a fluid medium to circulate to drive a stirring engine which operates a stirring apparatus in the tank, and to drive a discharge pump for discharging heated material through the spray hose and nozzle operatively connected to it.

Abstract: Abrasive coal dust contaminates and damages equipment used in coal mines. Such equipment must be cleaned periodically to remove any buildup of coal dust. The equipment is usually cleaned in areas with non-explosive atmospheres. The present invention provides a high pressure, mine equipment cleaning device utilizing a water based, non-flammable cleaning solution. The device is carried by a vehicle and is powered by pressure in the hydraulic system of the vehicle.

Abstract: A recirculating sprayer adapted for mounting on a vehicle is improved for use at increased travel speed and for operation in higher wind conditions by angling the solid spray streams forwardly or rearwardly from a direction transverse to the travel direction. The sprays are employed in criss-cross, opposite pairs, with the spray stream patterns of adjacent pairs of spray nozzles abutting or overlapping one another for full coverage of all upstanding weeds or crops in an area traversed by the sprayer. A series of collector mats or panels may be arranged transverse to the travel direction, with sprays trained thereon for contacting each weed twice in its upstanding position once by each spray of a pair; the weeds may also be contacted once more as they are bent forward to pass beneath the panels and a reservoir thereunder. The collector may also be arranged in panels parallel to the travel direction, for increased ease in negotiating sloping terrain.

Abstract: A novel sprayer for treating ground surfaces with liquid materials is described. The sprayer is readily transportable, collapsible, easily adjustable and non-corrosive and has a collapsible frame which includes an adjustable handle section, a dependent leg section and a guide between the handle section and the leg section. A pair of wheels are rotatably mounted on the leg sections and are inwardly collapsible to facilitate transportability of the sprayer. An elongated support member having an upper portion and a lower portion is secured to the collapsible frame by the guide. Attached to the lower portion of the elongated support member is an adjustable platform having a lower crossbar member and an upper crossbar member. Two bolts are adjustably connected to the two crossbar members in a manner such the distance therebetween can be adjusted by rotating the bolts. Attached to the upper crossbar member of the adjustable platform is a boom support.

Abstract: An improved spraying apparatus for use in combination with a mowing apparatus is described which facilitates uniform application of a liquid spray to grassy surfaces while minimizing surface compaction, said apparatus being comprised of means for receiving liquid from a remote supply source and means for discharging a liquid spray onto the surface being treated, the spray pattern contacting said surface having a width substantially equal to the width of the swath cut by the mowing apparatus.