A - Human Necessities – 01 – C
Patent
A - Human Necessities
01
C
111/33
A01C 5/02 (2006.01)
Patent
CA 1269567
Abstract A manually operated dispensing tool for repeatedly dis- pensing a predetermined quantity of pelletized material below the surface of the earth. The tool includes an upright elongated outer housing adapted to be connected with a supply of pellet- ized material filling a reservoir formed by the outer housing. A spring biased downward sleeve having wall ports is vertically re- ciprocable in the depending end portion of the outer housing for communicating with the material reservoir. A drop tube of smaller diameter than the sleeve depends from and is secured at its upper end portion in the sleeve below the position of the sleeve ports. A handle assembly, overlying the top of the outer housing, is connected with a stem assembly projecting through the housing and drop tube. A central portion of the stem assembly forms a valve normally closing the upper end of the drop tube to define a meas- uring chamber in the sleeve communicating with the sleeve ports. The depending end of the stem assembly defines an earth penetrat- ing tip normally closing the lower limit of the drop tube. Downward movement of the device into the surface of the earth moves the sleeve upwardly within the outer housing to uncover the sleeve ports and load the measuring chamber. Manually lifting the stem assembly relative to the housing releases the measured charge of pelletized material to fall by gravity through the drop tube.
508850
Borden Ladner Gervais Llp
Curlett John
Fort Dodge Chemical Company
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