US3715057A - Apparatus for separating and/or counting individual elements of a plurality - Google Patents

Apparatus for separating and/or counting individual elements of a plurality Download PDF

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US3715057A
US3715057A US3715057DA US3715057A US 3715057 A US3715057 A US 3715057A US 3715057D A US3715057D A US 3715057DA US 3715057 A US3715057 A US 3715057A
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drum
particles
indentation
apparatus
bore
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R Becker
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BECKER KARL MASCH
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BECKER KARL MASCH
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING; SHOP CONVEYOR SYSTEMS; PNEUMATIC TUBE CONVEYORS
    • B65G65/00Loading or unloading
    • B65G65/30Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34Emptying devices
    • B65G65/40Devices for emptying otherwise than from the top
    • B65G65/48Devices for emptying otherwise than from the top using other rotating means, e.g. rotating pressure sluices in pneumatic systems
    • B65G65/4881Devices for emptying otherwise than from the top using other rotating means, e.g. rotating pressure sluices in pneumatic systems rotating about a substantially horizontal axis
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C7/00Sowing
    • A01C7/04Single-grain seeders with or without suction devices
    • A01C7/042Single-grain seeders with or without suction devices using pneumatic means
    • A01C7/044Pneumatic seed wheels
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S111/00Planting
    • Y10S111/927Parallelogram mounting

Abstract

Apparatus for separating and/or counting individual ones of a plurality of substantially similarly shaped particles, elements, grains, or the like, such as grains of seed, pills, etc., and including a hollow rotating drum, constructed to have plural, inwardly tapering indentations, terminating in a bore open to the interior of the drum and having at the bottom of the indentation dimensions smaller than the particles so that the particles cannot traverse the bore, the indentations being wider than the particles at the surface of the drum, the indentation dimensioned to hold at least one particle each. A nozzle directs an air jet towards the drum at direction and position so that the air strikes along the leading wall portion of the closest indentation as the drum rotates. Particles are fed towards the drum, so that at least one particle is in each indentation as it passes the jet.

Description

United States Patent H 1 [111 3,715,057 Becker 1 Feb. 6, 1973 APPARATUS FOR SEPARATING AN D/OR COUNTING INDIVIDUAL ELEMENTS OF A PLURALITY Inventor: Reinhard Becker, Gieselwerder,

Germany Karl Becker KG Maschinenfabrik, Gieselwerder, Germany Filed: Dec. 9, 1971 Appl. No.: 206,282

Assignee:

10/1970 Knapp ..221/211 11/1970 Irvine ..221/211 Primary ExaminerRobert B. Reeves Assistant Examiner-Thomas E. Kocovsky Attorney-Ralf l-l. Siegemund ABSTRACT Apparatus for separating and/or counting individual ones of a plurality of substantially similarly shaped particles, elements, grains, or the like, such as grains of seed, pills, etc., and including a hollow rotating drum, constructed to have plural, inwardly tapering indentations, terminating in a bore open to the interior of the drum and having at the bottom of the indentation dimensions smaller than the particles so that the particles cannot traverse the bore, the indentations being wider than the particles at the surface of the drum, the indentation dimensioned to hold at least one particle each. A nozzle directs an air jet towards the drum at direction and position so that the air strikes along the leading wall portion of the closest indentation as the drum rotates. Particles are fed towards the drum, so that at least one particle is in each indentation as it passes the jet.

9 Claims, 5 Drawing Figures PATENTEU FEB 6 \973 sum 20F a APPARATUS FOR SEPARATING AND/OR COUNTING INDIVIDUAL ELEMENTS OF A PLURALITY The present invention relates to apparatus for separating and/or counting individual elements taken or to be taken from a quantity of approximately similarly shaped elements such as seed, pills, plastic particles or the like. More particularly, the invention relates to improvements in counting or separating apparatus which includes a housing, a bucket wheel or drum, journalled in the housing, a storage bin or the like and a feeder arrangement extending from bin to drum.

The separation and/or counting of at least approximately similarly shaped elements is an objective that may arise on various occasions and for a variety of reasons. So-called single seed sowing machines or pill dispensing or bottling apparatus, though quite unrelated have this objective in common; in both cases some kind of metering process for the individual elements is needed.

Sowing or seeding machines with single seed dispensing mechanism use a bucket wheel wherein the individual compartments are usually dimensioned so as to receive, possibly, only one seed grain. That seed is ejected upon continued turning of the wheel, and at a different location, if possible, into a prepared furrow. These machines pose the problem that each compartment should contain only one grain of seed, not two, and it should also not remain empty, otherwise growth retardation and/or a gap in the row of expected plants is inevitable.

In order to cope with that problem, it has been suggested to provide the bucket wheel with bores as cells or compartments for the individual seeds, and in the interior of the drum low pressure is maintained, so that the seed grains are sucked into the bores and maintained therein. Upon restoring normal pressure, the grains are free to drop from their respective compartments.

Such a machine operates quite satisfactorily, but it was found that in reality plural grains in one compartmentor empty ones are not completely avoided, even if a mechanical stripper or wiper is used to remove excess protruding particles. Moreover, gauging of the seed is not avoidable with these machines, which is an expensive requirement. The crux of these machines lies in the attempt to match the compartment size to the grain size, but irregularities in shape and size make accurate single particle dispensing a matter of higher or lower probability.

The apparatus in accordance with the present invention avoids the several deficiencies and drawbacks as outlined above. In accordance with the preferred embodiment of the present invention, it is suggested to provide indentations in a drum which taper in inward direction, e.g., by having conical configuration. These indentations may be located either along periphery of the drum or on axial end faces thereof. The apeces are not fully developed, i.e., the cones are actually trunkated. The smallest diameter in each indentation is smaller than the diameter of the smallest particle or element to be separated.

The housing in which this drum is journalled is equipped with a blower having a nozzle that directs a jet towards the drum not quite tangentially to the wall of the indentation underneath, but at a slight angle particularly in relation to one portion of the inner wall of a tapering indentation. The apex angle of each cone should be from within the range from 40 to preferably about 45 to 60. The drum itself is preferably exchangeably and displaceably disposed in housing journals.

As will be explained by way of a specific example (but having relevancy beyond that example) the conical indentations or bores are somewhat overdimensioned to receive at least one particle, element, grain etc. with certainty, but possibly more than one. Through aerodynamic effects, the jet will cause the one lowest particle in each bore to be sucked against the bottom wall portion of the bore, while the superfluous particles are flushed out.

While the specification concludes with claims particularly pointing out and distinctly claiming the subject matter which is regarded as the invention, it is believed that the invention, the objects and features of the inventionand further objects, features and advantages thereof will be better understood from the following description taken in connection with the accompanying drawings in which:

FIG. 1 is a side view of a seeder machine in which the invention can be practiced;

FIG. 2 illustrates side view, partially as section view, of an arrangement in accordance with the preferred embodiment of the invention, including incorporating feature for employment in a seeder machine;

FIG. 3 shows section view along line IIIIII of FIG. 2; and

FIGS. 4 and 4a are respectively section view and top view into a bore that receives an element to be dispensed, counted, etc.

Preceding now to the detailed description of the drawings, FIG. 1 illustrates a tubular carrier 1 that extends from a tractor. A clamp 2 is secured to carrier 1 as holder for a parallel construction and guide frame 3. The holder journals the two parallel arms 3a and 3b, and the fourth side is established by the frame 4 of the seeder machine, holding a seeder blade 5, a seeding apparatus proper 6 with feeder 7, and an air intake (outlet of a blower) 8. A stripper 9 and a roller 10 for closing the furrow are likewise connected to the frame part 4a. Roller 10 is pivotable linked to the frame as is known per se. Adjusting means 11 permit angular adjustment and elevation adjustment of the roller.

After having described the background, I now turn to the improvement of this invention and here I refer to FIG. 2, showing relevant details. A bucket wheel or drum 12 is disposed, i.e., journalled in a housing 17 of the seeder apparatus 6. The drum 12 is driven in a manner known per se. A plurality of radially inwardly directed bores or indentations 13 of conical configuration, traverse the drum which is hollow in the interior. Actually, the conical indentations each merge with cylindrical bores 13a. Each bore or indentation 113,

thus provides for a tapering container or compartment with perforated bottom.

FIGS. 4a and 4b respectively show section and top view (radially inward) of such a bore.

The housing 17 of the feeder is constructed to accommodate a feeder chamber whose bottom 14a is inclined to the horizontal, so that grain (seeds) can slide down, and towards the drum 12. Grain enters chamber 14 through a chute or other suitable feeder input 7. The opening of the storage and feeder facility 14 towards the drum is selected to span about three indentations or bores 13, so that each will be filled with certainty with one or even several grains of seed. The volume of each conical bore is selected so that each can receive more than one grain.

A portion of the upper wall of chamber 14 is provided as air intake 8 terminating in a nozzle of meniscus-like cross section (see FIG. 3). That nozzle is disposed in the immediate vicinity of the periphery of drum 12. The meniscus-shaped nozzle 15 has configuration that matches the contour of the upper (outer) edge or rim of each bore 13 (see FIG. 3), for a drum with a single peripheral row of bores. In particular, the nozzle has configuration so that the radius of curvature of the convex arc of the nozzle is approximately similar to the radius of curvature of the upper (outer) rim of the bore 13.

The wall of housing 17 encloses most of the drum 12 to retain the particles in the bores. The bottom has a seed ejection opening 16. It may be of advantage to provide a reciprocating ejector in the interior of the drum. The ejection may be positioned excentrically in the drum but rotating therewith. The spokes may enter the bores 13a and 13 when in lower position to push the grains out of the bores. Care must be taken that a grain is not squeezed against the bottom wall of housing 17 before the compartment reaches opening 16 pursuant to the rotation.

Upon operation, the drum 12 rotates counterclockwise. Each bore 13a is filled with at least one, possibly more than one grain of seed. As a filled bore passes nozzle 15, the following transpires. The jet hits the leading wall of the particular conical bore 13 underneath as passing; the jet continues around the grain or grains through opening 13a towards the interior of the drum. As the cross section of the duct 13-13a reduces towards bore 130, each bore actually accelerates the air jet. This acceleration is significant, even if a bore is empty. It is even more so when grains are in the respective bore, so that most of the air is actually deflected and returns along the trailing wall portion of bore 13, into the interior of feeder chamber 14.

It is assumed now that there is at least one, possibly two or more grains in such a blown at bore. The grain at the bottom, right next to the bottom bore 130, is circumcirculated by air, particularly by the air that will continue through bore 13a. As a consequence, low pressure develops in bore 13a and sucks the grain against the lower taper and bottom of cone 13. All other elements in this bore 13 will be flushed out into bin 14. This will occurjust before the particular bore is covered by the rim 17a of housing 17.

It can readily be seen that the flushing or blowing of superfluous grains from each bore has the advantage that they will not be damaged. The pressure used for blowing air into each bore passing nozzle 15 is selected in accordance with the approximately similar weight for the grain elements. Also, the size of the bore (which is determined by the size of the grain) and the estimated flow throttling resistance for air in a partially filled bore are parameters for the jet pressure. Actually,

that pressure is simply adjusted experimentally, even on location. It will vary with the grain size.

As the air flow and, therefor, the low sucking pressure that develops in bore 13a and holds the bottom 5 grain, acts only during passage of a bore under nozzle 15, no suction is effective thereafter, and the grain will readily drop out by gravity once-the bore passes opening 16. Also, any air that has been blown into the drum will flow out again through the bore that registers with opening 16, aiding in the removal of the grain should it be stuck in the conical bore. That may occur if the cone is too pointed.

Plural such arrangements in axially aligned relation can be provided for a single machine, the axial distance being the distance between adjacent furrows. This distance will essentially be adjusted by the clamping holders 2 as arranged on carrier tube, extending transverse to the furrows. The spacing between the in- 20 dividual grains of seed along a furrow is essentially determined by the adjusted relation between the rotational speed of the drum l2 and the running speed of the tractor. The blower for feeding air towards nozzle 15 is likewise driven by the tractor.

If the seeder machine is used, for example, for sowing corn, it is not necessary to gauge or otherwise sort or classify the corn kernels, and still it is ensured that there will be one kernel (nor more, not less) in a bore 13.

It can readily be seen that the basic components can be used in substantially similar arrangements and even in similar configuration for counting or separating other types of particles. Possibly needed modifications may include a closing means for the ejection opening 16. After having a particular number of particles deposited into the compartments-indentations (which is determined by a particular angular displacement path or a number of revolutions of the drum), opening 16 is temporarily closed until the container underneath has been replaced by an empty one. In lieu of a compartmentized drum (bucket wheel) one can use a belt with compartments having configuration as outlined above. Only drive and feeder equipment have to be adapted accordingly.

The invention is not limited to the embodiments described above but all changes and modifications thereof not constituting departures from the spirit and scope of the invention are intended to be included.

I claim:

1. Apparatus for separating and counting individual ones of a plurality of substantially similar shaped particles, elements, grains, or the like, such as grains of seed, pills, etc., and including a rotating drum, feeder means for the particles and a housing for the drum, the

improvement comprising:

the drum being hollow and constructed to have plural inwardly tapering indentations, terminating in a bore open to the interior of the drum and having at the bottom of the indentation dimensions smaller than the particles so that the particles cannot traverse the bore, the indentations being wider than the particles at the surface of the drum, the

indentation dimensioned to hold at least one particle each; means including a nozzle for directing an air jet towards the drum at direction and position so that the air jet is directed towards and into an indentation striking along the leading wall portion thereof as the drum rotates; and

the feeder means constructed to feed particles towards the drum, so that at least one particle is in each indentation as it passes the jet.

2. Apparatus as in claim 1, the indentations having conical configuration, the apex angle being between 40 and 90.

3. Apparatus as in claim 2, the bore merging in the conical indentation being cylindrical.

4. Apparatus as in claim 2, the apex angle being 45 to 60.

5. Apparatus as in claim 1, the drum disposed in a cylindrical housing covering the drum for most of its circumference, the feeder means opening the housing along the remaining part of the circumference, the nozzle arranged at the one end of the opening where, in direction of rotation, the drum surface enters cover by the housing.

6. Apparatus as in claim 5, the opening providing to expose about three indentations to the feeder means.

7. Apparatus as in claim 5, the feeder means being arranged in the upper portion along the ascending path of the rotating drum, the housing having an outlet at the bottom.

8. Apparatus as in claim 1, the nozzle having menixcus-like cross section.

9. Apparatus as in claim 1, the drum including an ejector means.

Claims (9)

1. Apparatus for separating and counting individual ones of a plurality of substantially similar shaped particles, elements, grains, or the like, such as grains of seed, pills, etc., and including a rotating drum, feeder means for the particles and a housing for the drum, the improvement comprising: the drum being hollow and constructed to have plural inwardly tapering indentations, terminating in a bore open to the interior of the drum and having at the bottom of the indentation dimensions smaller than the particles so that the particles cannot traverse the bore, the indentations being wider than the particles at the surface of the drum, the indentation dimensioned to hold at least one particle each; means including a nozzle for directing an air jet towards the drum at direction and position so that the air jet is directed towards and into an indentation striking along the leading wall portion thereof as the drum rotates; and the feeder means constructed to feed particles towards the drum, so that at least one particle is in each indentation as it passes the jet.
1. Apparatus for separating and counting individual ones of a plurality of substantially similar shaped particles, elements, grains, or the like, such as grains of seed, pills, etc., and including a rotating drum, feeder means for the particles and a housing for the drum, the improvement comprising: the drum being hollow and constructed to have plural inwardly tapering indentations, terminating in a bore open to the interior of the drum and having at the bottom of the indentation dimensions smaller than the particles so that the particles cannot traverse the bore, the indentations being wider than the particles at the surface of the drum, the indentation dimensioned to hold at least one particle each; means including a nozzle for directing an air jet towards the drum at direction and position so that the air jet is directed towards and into an indentation striking along the leading wall portion thereof as the drum rotates; and the feeder means constructed to feed particles towards the drum, so that at least one particle is in each indentation as it passes the jet.
2. Apparatus as in claim 1, the indentations having conical configuration, the apex angle being between 40* and 90*.
3. Apparatus as in claim 2, the bore merging in the conical indentation being cylindrical.
4. Apparatus as in claim 2, the apex angle being 45* to 60*.
5. Apparatus as in claim 1, the drum disposed in a cylindrical housing covering the drum for most of its circumference, the feeder means opening the housing along the remaining part of the circumference, the nozzle arranged at the one end of the opening where, in direction of rotation, the drum surface enters cover by the housing.
6. Apparatus as in claim 5, the opening providing to expose about three indentations to the feeder means.
7. Apparatus as in claim 5, the feeder means being arranged in the upper portion along the ascending path of the rotating drum, the housing having an outlet at the bottom.
8. Apparatus as in claim 1, the nozzle having menixcus-like cross section.
US3715057A 1970-12-29 1971-12-09 Apparatus for separating and/or counting individual elements of a plurality Expired - Lifetime US3715057A (en)

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FR (1) FR2120821A5 (en)
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NL (1) NL173123C (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846956A (en) * 1973-05-02 1974-11-12 Ferry Morse Seed Co Method of and apparatus for making seed tape
US3954204A (en) * 1973-03-06 1976-05-04 Deere & Company Cell wheel for singling and separating seeds
US4116140A (en) * 1976-12-09 1978-09-26 Haybuster Manufacturing, Inc. Press wheel depth control for grain drill furrow openers
US4450979A (en) * 1980-08-15 1984-05-29 White Farm Equipment Company Seed metering means
US4544082A (en) * 1981-08-10 1985-10-01 Karl Becker Gmbh & Co. Kg Separating and depositing single pieces of grain
US4614283A (en) * 1978-11-02 1986-09-30 Karl Becker Gmbh & Co. Kg Depositioning single pieces of grain
US5058766A (en) * 1990-05-25 1991-10-22 Kinze Manufacturing, Inc. Seed meter for row crop planter unit
EP0815715A2 (en) * 1996-07-02 1998-01-07 Wintersteiger Gesellschaft m.b.H. Apparatus for filling a holder in a seeddrill for selected seeds of crop
FR2773404A1 (en) * 1998-01-06 1999-07-09 Xavier Pluchet Vacuum lifting of set number of seed grains of different size and shape to simplify counting of seeds which are to be sown at a set number per unit area
US6308645B1 (en) 1999-12-30 2001-10-30 Great Plains Manufacturing, Incorporated Seeding machine with bulk seed supply container and independent, opener-mounted metering devices
US20040099683A1 (en) * 2002-08-09 2004-05-27 Shows Paul Randall Dispensing device having a storage chamber, dispensing chamber and a feed regulator there between
US20070186514A1 (en) * 2002-08-09 2007-08-16 Mckesson Automation Systems Inc. Automated apparatus and method for filling vials
US7303094B2 (en) 2002-08-09 2007-12-04 Kevin Hutchinson Vacuum pill dispensing cassette and counting machine
US20080061074A1 (en) * 2004-03-15 2008-03-13 Parata Systems, L.L.C. Vacuum Based Pill Singulator and Counter Based Thereon
US20160073575A1 (en) * 2013-04-17 2016-03-17 Aldo SPAPPERI Seeding machine
EP3108732A1 (en) * 2015-06-23 2016-12-28 Amazonen-Werke H. Dreyer GmbH & Co. KG Device for conveying granular material onto an agricultural surface with reduced discharge pressure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524762B1 (en) * 1982-04-09 1986-04-25 Sogefina Gestion Financ Armori A selector device for sowing said distributor "seeder"

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533535A (en) * 1968-07-09 1970-10-13 Aptek Ind Inc High speed singulating device
US3542242A (en) * 1969-03-03 1970-11-24 Avco Corp Precision seed-metering device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1219545A (en) * 1959-03-28 1960-05-18 Sowing seeds underwriter
NL6407284A (en) * 1964-06-26 1965-12-27

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533535A (en) * 1968-07-09 1970-10-13 Aptek Ind Inc High speed singulating device
US3542242A (en) * 1969-03-03 1970-11-24 Avco Corp Precision seed-metering device

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954204A (en) * 1973-03-06 1976-05-04 Deere & Company Cell wheel for singling and separating seeds
US3846956A (en) * 1973-05-02 1974-11-12 Ferry Morse Seed Co Method of and apparatus for making seed tape
US4116140A (en) * 1976-12-09 1978-09-26 Haybuster Manufacturing, Inc. Press wheel depth control for grain drill furrow openers
US4614283A (en) * 1978-11-02 1986-09-30 Karl Becker Gmbh & Co. Kg Depositioning single pieces of grain
US4450979A (en) * 1980-08-15 1984-05-29 White Farm Equipment Company Seed metering means
US4544082A (en) * 1981-08-10 1985-10-01 Karl Becker Gmbh & Co. Kg Separating and depositing single pieces of grain
US5058766A (en) * 1990-05-25 1991-10-22 Kinze Manufacturing, Inc. Seed meter for row crop planter unit
EP0815715A2 (en) * 1996-07-02 1998-01-07 Wintersteiger Gesellschaft m.b.H. Apparatus for filling a holder in a seeddrill for selected seeds of crop
EP0815715A3 (en) * 1996-07-02 2000-03-29 Wintersteiger Gesellschaft m.b.H. Apparatus for filling a holder in a seeddrill for selected seeds of crop
FR2773404A1 (en) * 1998-01-06 1999-07-09 Xavier Pluchet Vacuum lifting of set number of seed grains of different size and shape to simplify counting of seeds which are to be sown at a set number per unit area
US6308645B1 (en) 1999-12-30 2001-10-30 Great Plains Manufacturing, Incorporated Seeding machine with bulk seed supply container and independent, opener-mounted metering devices
US20060157492A1 (en) * 2002-08-09 2006-07-20 Mckesson Automation Systems, Inc. Dispensing device having a storage chamber, dispensing chamber and a feed regulator there between
US7014063B2 (en) 2002-08-09 2006-03-21 Mckesson Automation Systems, Inc. Dispensing device having a storage chamber, dispensing chamber and a feed regulator there between
US20040099683A1 (en) * 2002-08-09 2004-05-27 Shows Paul Randall Dispensing device having a storage chamber, dispensing chamber and a feed regulator there between
US20070186514A1 (en) * 2002-08-09 2007-08-16 Mckesson Automation Systems Inc. Automated apparatus and method for filling vials
US20070208457A1 (en) * 2002-08-09 2007-09-06 Mckesson Automation Systems Inc. Method of transporting vials and cassettes in an automated prescription filling apparatus
US7303094B2 (en) 2002-08-09 2007-12-04 Kevin Hutchinson Vacuum pill dispensing cassette and counting machine
US9037285B2 (en) 2002-08-09 2015-05-19 Mckesson Automation Systems, Inc. Automated apparatus and method for filling vials
US7506780B2 (en) 2002-08-09 2009-03-24 Mckesson Automation Systems Inc. Vacuum pill dispensing cassette and counting machine
US7584018B2 (en) 2002-08-09 2009-09-01 Parata Systems, Llc Dispensing device having a storage chamber, a dispensing chamber and a feed regulator there between
US7753229B2 (en) 2002-08-09 2010-07-13 Mckesson Automation Systems Inc. Vacuum pill dispensing cassette and counting machine
US7789267B2 (en) 2002-08-09 2010-09-07 Mckesson Automation Systems, Inc. Vacuum pill dispensing cassette and counting machine
US7831334B2 (en) 2002-08-09 2010-11-09 Mckesson Automation Systems Inc. Method of transporting vials and cassettes in an automated prescription filling apparatus
US8348094B2 (en) 2004-03-15 2013-01-08 Parata Systems, Llc Vacuum based pill singulator and counter based thereon
US20080061074A1 (en) * 2004-03-15 2008-03-13 Parata Systems, L.L.C. Vacuum Based Pill Singulator and Counter Based Thereon
US20160073575A1 (en) * 2013-04-17 2016-03-17 Aldo SPAPPERI Seeding machine
EP3108732A1 (en) * 2015-06-23 2016-12-28 Amazonen-Werke H. Dreyer GmbH & Co. KG Device for conveying granular material onto an agricultural surface with reduced discharge pressure

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NL173123C (en) 1983-12-16 grant
GB1372230A (en) 1974-10-30 application
FR2120821A5 (en) 1972-08-18 application
NL7117553A (en) 1972-07-03 application
BE775908A1 (en) grant
BE775908A (en) 1972-03-16 grant

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