Abstract: A minimum tillage agricultural implement 10 having a plurality of laterally spaced shank assemblies 60, 62 mounted on a transverse tool bar 56, 58. Each shank assembly 60, 62 has an elongated narrow upright shank 70 that extends downward from the tool bar 56, 58 to a working point 78 for forming a narrow furrow 12 in soil covered with agricultural residue. Each shank assembly 60, 62 has a set of residue control wheels 130, 132 that straddle the shank 70 with the axes 134, 136 of rotation of the residue control wheels 130, 132 being located rearward of a front edge reference segment 82 of the shank 70 by a distance “A” of less than a diameter of the wheels 130 or 132 for engaging and stabilizing the soil and agricultural residue downward and under the wheels and away from the shank 70. In an alternate embodiment, the residue control wheels 130, 132 are longitudinally offset with the distance “B” between the axes 134 and 136 are less than one-third the diameter of the wheels 130, 132.

Abstract: A bottled water supply system comprises a base unit into which a standard five gallon water bottle may be installed. The cover of the base unit supports the bottle in an inverted position such that the neck of the bottle projects into a water reservoir within the unit. A pump, also housed within the unit, draws water from the reservoir and pumps it to the water supply line of an appliance. Power for the pump is controlled by a pressure actuated switch so that the pressure in the supply line is maintained a predetermined level. A pair of magnetic reed switches are housed within a water tight tube in the reservoir below the normal water level. A magnetic float surrounding the tube actuates one of the reed switches when the water level falls below the neck of the water bottle, thereby actuating an alarm indicating that the bottle is empty. The second switch is actuated just before the water level drops to the level of the pump supply tube and interrupts power to the water pump.