Planting – Dibbling – Manually-operated implements
Patent
1996-03-18
1997-09-09
Melius, Terry Lee
Planting
Dibbling
Manually-operated implements
111200, A01C 100
Patent
active
056645066
ABSTRACT:
A seed dispenser is composed of a motor-spatula assembly and a handle. A switch, an adjustable resistor and a battery are enclosed in a hollow of the handle. The motor-spatula assembly includes a V-shaped spatula and an electrical motor elastically mounted to a proximal end of the V-shaped spatula, and the motor is connected via the switch and resistor to the battery. The motor rotor is eccentric so that the rotational center of gravity of the rotor is not exactly co-axial with the axis of the rotor drive shaft, to cause when running a vibration of the motor-spatula assembly at a dominant vibration frequency that is directly proportional to the speed of the rotor. Speed of the motor is adjustable by varying the resistor. The motor-spatula assembly mounted to the handle through a resilient elastomeric gasket, so that a substantial part of the motor vibration energy is transmitted to the spatula and not to the handle. For more effective singulation and enhanced regularity in the dispensing of very small seeds, a series of dremples is formed in the spatula protruding inward toward the trough of the spatula. For large seeds, eccentricity of the rotor may be increased by providing eccentricity of the extending portion of the rotor drive shaft. For more vigorous dispensing of large seeds, the extending eccentric drive shaft may be caused to repeatedly strike a bolt mounted in the motor-spatula assembly.
REFERENCES:
patent: 1856065 (1932-05-01), Austin
patent: 2570081 (1951-10-01), Szczeniowski
patent: 4771912 (1988-09-01), van Wingerden
patent: 5414955 (1995-05-01), Morin
patent: 5452672 (1995-09-01), Lay
patent: 5524559 (1996-06-01), Davidson
Melius Terry Lee
Novosad Christopher J.
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