Methods, systems, apparatus and rotor for applying granular material
First Claim
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1. A metering rotor for use in metering granular material comprising:
- a rotor having an axis of rotation and an outer circumferential surface having multiple discrete indentations arranged in the surface in circumferential rows with each of the rows offset with respect to adjacent rows such that any radial plane including the axis contains a substantially constant cross section of the indentations.
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Abstract
Methods, systems, apparatus and a rotor are provided for metering, conveying and dispensing granular materials and/or liquids. The systems, apparatus and rotor can be used for metering, conveying and dispensing granular materials onto a plurality of zones and/or liquids onto a plurality of regions.
47 Citations
11 Claims
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1. A metering rotor for use in metering granular material comprising:
a rotor having an axis of rotation and an outer circumferential surface having multiple discrete indentations arranged in the surface in circumferential rows with each of the rows offset with respect to adjacent rows such that any radial plane including the axis contains a substantially constant cross section of the indentations. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus for metering granular material substantially without pulsing and attrition comprising:
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a rotor having an axis of rotation and an outer circumferential surface having indentations arranged in the surface in circumferential rows with each of the rows offset with respect to adjacent rows such that any radial plane including the axis contains a substantially constant cross section of the indentations; a housing for partially enclosing and supporting the rotor, the housing having a first and a second opening, each of the openings providing access to the rotor surface, the openings spaced from one another; a gate having a cylindrical surface positionable between the housing and the rotor to selectively control the size of the first housing opening; and a blocking mechanism positioned adjacent the rotor cylindrical surface to prevent excess material from entering the first housing opening, whereby when the material is fed by gravity to the first housing opening, the rotor is rotated with respect to the gate and the housing, and the gate is positioned to open the first housing opening, then the material is metered through the apparatus and out the second housing opening. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification