Abstract: A mobile hand-pushed boom type spray apparatus which includes a three-wheeled support, having one wheel which is positionable to select and maintain a constant spray boom height above a surface, thereby increasing the precision of the spray application and improving the ability to track a given path.

Abstract: A filter is described for separating solid particles and breaking down dense masses from a liquid carrier, and for promoting mixing of friable, dry material with the liquid. The filter comprises a housing having an interior wall of substantially circular cross-sectional configuration. A cylindrical filter member is carried inside the housing but is spaced apart from the housing interior wall. A circular fluid flow path is thus defined between the wall and the filter member. A liquid outlet port is defined in the housing and communicates with the inside of the filter member. A liquid inlet port is oriented so as to direct the fluid flow over and past the filter so as to cause an extending filtering and filter-cleaning action.

Abstract: An earth-working and fluid distribution apparatus is disclosed including a plow having a frame and a shank connected thereto. The apparatus further includes a, shovel for breaking the earth and creating a furrow connectable to the shank, a fluid supply source attachable to the plow frame, fluid distribution means connectable to the plow shank and having connecting means to the fluid supply means, means for suppressing the soil connectable to the plow shank to seal the fluid into the soil following the distribution of the fluid, and means connectable to the plow shank for removing weeds during the plowing operation.

Abstract: A fast clamp chisel trip apparatus is disclosed for use with a chisel plow having a frame with a tool attached thereto with means for lowering and raising the tool to positions for working and for transporting said plow, respectively. The embodiment of the apparatus disclosed includes means for holding the tool in a rigid position for plowing while the plow is in its work position, said means being adapted to remove the tool from this rigid position whenever the tool, while in the process of plowing, encounters any force of resistance greater than a predetermined force. Also included are means for setting said predetermined force into the apparatus, and means for returning the tool to its rigid position for plowing when the source of said resistance force has been by-passed.

Abstract: A chisel plow and a cold flow shoe for dispensing ammonia fertilizer into an earthen field are disclosed. The shoe includes a vapor tube for receiving ammonia vapor, and a liquid tube for receiving ammonia liquid from sources which can be mounted upon the plow. The vapor tube defines an orifice for dispensing the received ammonia vapor in a rearward direction into a trench formed by the plow chisel. The liquid tube defines a liquid dispenser orifice located immediately above and to the rear of the vapor dispensing orifice. Liquid ammonia is thus dispensed atop the previously dispensed ammonia vapor as the plow chisel moves through the ground and forms the trench. As earth collapses atop the dispensed ammonia, the ammonia is retained in positions located immediately adjacent growing crop plants, or adjacent those locations where plants will be grown. Effective, efficient ammonia fertilization is thus provided.

Abstract: The embodiment of the invention disclosed herein is directed to a hand-propelled chemical applicator which dispenses liquid chemicals when the applicator is manually pushed over an area of ground to be treated. The applicator is a fluid-dispensing device having a support frame supported on the ground by a main wheel rotatably secured thereto. A pump is secured to the support frame and is selectively engageable with and driven by the main wheel to develop sufficient pressure to draw liquid chemicals from a reservoir and deliver the chemicals to two or more dispensing nozzles secured to the support frame. The pump produces sufficient pressure during a normal walking speed of an operator to provide substantially constant dispersion of the chemical. The chemicals within the reservoir are maintained in a mixed condition by providing a return fluid flow path of chemicals from a distribution manifold back to the reservoir through a separate return flow path.

Abstract: An earthworking implement such as a tractor-drawn chisel plow having a fertilizer tank is provided with an automatically operated control system for fluid dispensing when the implement is work configured. In one embodiment the implement is provided with a rockshaft for moving implement wheels between a wheels up, implement working position and a wheels down, implement transport position. An interconnector cable is wrapped at one end around the rockshaft. As the rockshaft turns and rotates the wheels into the implement working position, the cable pulls the valve stem of a fluid metering valve partially out of the valve, thereby opening the valve and permitting fluid flow.