Device for metering flowable products
AssigneeLawer S.r.l.
InventorsPaolo De Bona, Ermanno Graziola
Life of this patent
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Abstract
A device for metering flowable products, such as products in the form of powder, granules, or microspheres, usable, for example, for the preparation of treatment baths, such as baths for dyeing, comprises at least one passage for the material to be delivered, the passage leading to a diaphragm. The aforesaid diaphragm can be moved according to a vibratory motion produced, for example, by a vibrating member mounted on the device. Preferably, the diaphragm carries, associated to it, a further diaphragm, which, in conditions of fine dispensing, comes up against the first diaphragm, so as to achieve, by the effect of the common vibratory motion, an action antagonistic to the formation of aggregates or micro-aggregates in the material to be delivered.
Claims19
A device for metering flowable products, the device comprising at least one passage for the flowable products being metered, the device having associated therewith at least one part adapted to be moved with a vibratory motion, wherein
- said at least one passage comprises a duct ending in a diaphragm provided with apertures for the passage of the flowable products being metered;
- and
- said diaphragm constitutes said at least one part adapted to be moved with said vibratory motion, wherein said diaphragm is operatively associated with said duct with the interposition of suspension means that can enable said vibratory motion.
A device for metering flowable products, the device comprising at least one passage for the flowable products being metered, the device having associated therewith at least one part adapted to be moved with a vibratory motion, wherein
- said at least one passage comprises a duct ending in a diaphragm provided with apertures for the passage of the flowable products being metered;
- and
- said diaphragm constitutes said at least one part that can be moved with vibratory motion, said device for metering flowable products further comprising a screw conveyor to cause the flowable products being metered to flow towards said diaphragm, wherein said screw conveyor comprises a distal end and a bladed body at said distal end, said bladed body being adapted to rotate in close vicinity of said diaphragm by the effect of the operation of the screw conveyor itself.
A device for metering flowable products, the device comprising at least one passage for the flowable products being metered, the device having associated therewith at least one part adapted to be moved with a vibratory motion, wherein
- said at least one passage comprises a duct ending in a first diaphragm provided with apertures for the passage of the flowable products being metered;
- and
- said first diaphragm constitutes said at least one part that can be moved wit vibratory motion, said device for metering flowable products further comprising a second diaphragm provided with respective apertures for the passage of said flowable products being metered, said second diaphragm being adapted to move selectively between
- at least one first operating condition in which said second diaphragm is substantially disengaged from said first diaphragm, and
- at least one second operating condition in which said second diaphragm is located up against said first diaphragm.
Dependencies are inferred from the claim text.