A - Human Necessities – 01 – C
Patent
A - Human Necessities
01
C
111/37, 349/39,
A01C 7/20 (2006.01) G01F 1/76 (2006.01) G01H 3/00 (2006.01)
Patent
CA 1055144
ABSTRACT OF THE DISCLOSURE The monitor is used with seeder equipment having one or more seeder hopper sections wherein each hopper section has a number of metering assemblies for feeding the seed from each hopper section to the soil. The monitoring apparatus includes at least one sensor consisting of a piezoelectric transducer which provides an output signal in response to being struck by a seed, a vibration isolating mounting structure to position the sensor in the seed flow path between the metering assembly and the soil, and a circuit for receiving the sensor electronic response and providing an indication of seed flow condition. The mounting structure includes an elongated member such as a metal tubing, to one end of which is fixed a cushion nude of a material such as a closed cell foam and to the other end of which is fixed a securing member to secure the structure to the seeder. The sensor is positioned on the cushion and a pair of leads connected across the sensor, pass through the tube and are connected to twin conductors at the other end. The circuit for each sensor includes a control circuit which processes the sensor signal and which provides an output control signal representing a flow condition such as the no flow condition. The circuit further includes visual and audio alarm circuits which indicate the flow condition for each sensor.
256721
Grimm Edward A.
Paulson Garry E.
LandOfFree
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