US3894695A - Disintegrator - Google Patents

Disintegrator Download PDF

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Publication number
US3894695A
US3894695A US485494A US48549474A US3894695A US 3894695 A US3894695 A US 3894695A US 485494 A US485494 A US 485494A US 48549474 A US48549474 A US 48549474A US 3894695 A US3894695 A US 3894695A
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United States
Prior art keywords
working tools
disintegrator
fan blades
tools
circular series
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US485494A
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English (en)
Inventor
Karl Benedikter
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PATENTANSTALT fur NEUE BAUSTOFFE
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PATENTANSTALT fur NEUE BAUSTOFFE
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/20—Disintegrating by mills having rotary beater elements ; Hammer mills with two or more co-operating rotors
    • B02C13/205—Disintegrating by mills having rotary beater elements ; Hammer mills with two or more co-operating rotors arranged concentrically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/288—Ventilating, or influencing air circulation

Definitions

  • ABSTRACT A disintegrator comprising two motor-driven rotors which rotate in opposite senses in a housing, each of the two rotors carrying at least one circular series of working tools for treating material, said circular series of working tools of said rotors being concentric, at least one of said circular series of working tools being provided with fan blades, said fan blades extending within the circular series of said working tools, each of said fan blades being disposed between two of said working tools.
  • the rotors are provided only with beating tools, such as rods, pins, metal plates, blades, or the like, and the formation of an air stream for discharging the material, the degree of disintegrating and the formation of the protective layer depend on the form, helix angle, and peripheral velocity of said tools.
  • beating tools such as rods, pins, metal plates, blades, or the like
  • the degree of disintegrating and the formation of the protective layer depend on the form, helix angle, and peripheral velocity of said tools.
  • the object cannot be accomplished or can be accomplished only in part.
  • the most frequent disadvantages are an inadequate working of the material and an incomplete formation of the protective layer.
  • the Printed German Specification No. 1,296,943 discloses a disintegrator which has a working means consisting of two oppositely rotating rotors, which carry concentric circular series of blades, which serve as beating tools and have working surfaces which be come covered during operation with a protective layer of the material to be treated.
  • the rotors described in said printed specification have a serious disadvantage, which resides in that such rotors cannot be used in disintegrators if the blades serving as beating tools have a helix angle below 15. If the blades have a helix angle a l5, the material to be fed into the disintegrator will be thrown back from the feed opening because the stream of the gaseous fluid, such as air, which is produced by the rotors opposes the stream of the particles of the material to be fed into the disintegrator. According to the Printed German Specification No. 1,296,943, a helix angle between 20 and 30 is recommended for the formation of a protective layer of the material to be worked. Finally, it is proposed to provide the blades with a concave working surface. These measures too have not been satisfactory as far as the above-mentioned objects are concerned.
  • FIG. 1 is a longitudinal sectional view on a plane extending along the axis of rotation of a disintegrator according to a special embodiment of the invention
  • FIG. 2 is a sectional view taken on line II-Il in FIG. 1, the housing and parts thereof being omitted for the sake of simplicity, and
  • FIGS. 3 to 5 show respective a blading portions with different designs and arrangements of the disintegrating tools and fan blades.
  • the disintegrator shown in FIG. 1 is similar in structure to the disintegrator disclosed in the US. Pat. Application Ser. No. 338,521 of the same applicant. It consists also of a housing 10, in which two oppositely rotating rotors 1, 2 are mounted. One rotor l is driven by the shaft IA in the direction of the arrow A and the other rotor 2 is driven by the shaft 2A in the opposite direction B.
  • the material to be treated is worked upon by working tools 6, which form three concentric circular series 3, 4, 5 and may consist of blades serving as beating and- /or mixing tools.
  • working tools of the outermost circular series 5 and of the innvermost circular series 3 are carried by the rotor l and the working tools of the intervening circular series 4 are carried by the rotor 2.
  • the blades of each circular series are gripped between two parallel rings 3A, 3B or 4A, 4B or 5A, 5B.
  • the rings 3A and 5A are carried by a disc 18 of rotor l and the ring 48 is carried by a disc 2B of rotor 2.
  • the blades consist of flat plates. Alternatively they may be concave or, as shown in FIGS. 3 to S, angled.
  • the base plate 7 of this beating blade has a helix angle a, which is measured outwardly from a plane 7' extending peripherally at the leading edge of the blade (tangential plane).
  • the angled portion 6 or 6" is shorter than the remaining portion 8" and amounts preferably to one-half or less of the overall length of the beating tools consisting of a blade or plate.
  • the shorter portion 6 or 6" is inclined from portion 6" toward the center of the rotor.
  • the angled end portions 6', 6" may be provided at both ends of portion 6" or, in accordance with the embodiment of FIG. 5, only at one end thereof, in the present case preferably at the trailing end. They are preferably made of or coated cermet and are replaceably mounted.
  • the outer edges of portions 6', 6" which outer edges face the axis of the motor may be covered with protective strips 10.
  • protective strips 10 instead of blades it is possible to use pins, bolts or different working tools. Depending on the working program, different combinations of the described beating or working tools can be used.
  • Fan blades 8 are provided between the working tools or at that end of each working tool of the outermost circular series 5 which is the leading end when the rotor l is rotating. Like the working tools 6, the fan blades 8 are gripped between the rings which carry them and may have any desired shape, e.g., of a plate, finger, or the like. They serve to ensure that the material to be treated flows in an outward direction and also to form a protective layer of the material to be treated on that surface of the beating tools which faces the rotor axis. This protective layer should be formed regardless of the helix angle a. The same may be less than l5 for certain operations whereas a larger angle, e.g., of 20-30, may be more desirable for other operations.
  • the fan blades 8 may be disposed within the outer circular series 5 of tools, as is shown in FIG. 2, or may protrude outwardly, as is shown in FIG. 4. They extend suitably radially and preferably include an angle of 90 with the plane of the beating tool. Further advantages may be afforded by the use of fan blades extending be yond the inner edge of the beating tool, particularly if the latter consists of a blade or plate. An example of such design is shown in FIG. 5. it will be understood that, within the scope of the invention, different positions and arrangements of the fan blades and different angles thereof relative to the beating tools may be selected. For instance, the above-mentioned preferred angular position relative to the angled portion 6 or 6" of the beating tool may be employed.
  • the length l of the fan blades 8 is selected so that the stream of gaseous fluid, which stream is generally by said blades, has an intensity which is sufficient to overcome the oppositely directed stream produced by the beating tools 6. This ensures a normal action of the retors so that the particles of material fed into the central portion of the rotors impinge on the beating tools 6 which are covered with a protective layer of the material to be treated and the stream of the gaseous fluid promotes the discharge of the particles.
  • the change of the length l of the fan blades 8 results in a change of the granulometric composition of the activated material. This enables the selection of an optimally suitable granulometric composition for definite technological requirements. Because the use of fan blades 8 permits also of the use of beating tools having a helix angle or below stronger and more durable protective layers will be formed on the beating tools, particularly in the treatment of wet mixtures, than with the known rotors.
  • the housing 10 is shown in the present case as a simple box having end walls 11, 12, a peripheral wall 13 and a feed pipe 14 for feeding the material to be treated into the central portion of the working chamber enclosed by the housing.
  • the housing 10 may have any desired, suitable shape.
  • the housing may be designed as described and claimed in the US. Patent Application Ser. No. 338,521.
  • a stationary housing may also be used, of course.
  • the working tools may comprise means for cutting various materials, such as plastics materials, fibers, composite materials, rubber or other tough materials and for this purpose may be provided with cutting edges.
  • the fan means may not only be used in conjunction with baffle plates but also in conjunction with pinlike beating tools.
  • Pinlike working tools are particularly important and of advantage for grinding cereals or cement clinker, and all soft materials which cannot by themselves form a sufficiently hard protective layer on the plates are desirably treated with pinlike working tools.
  • the number of circular series on the oppositely rotating rotors and the sequence of said circular series may be selected as desired.
  • fan blades may be provided on the inner circular series.
  • a disintegrator comprising two motor-driven rotors which rotate in opposite senses in a housing, each of the two rotors carrying at least one circular series of working tools for treating material, said circular series of working tools of said rotors being concentric, at least one of said circular series of working tools being provided with fan blades, said fan blades extending within the circular series of said working tools, each of said fan blades being disposed between two of said working tools.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
US485494A 1973-07-05 1974-07-03 Disintegrator Expired - Lifetime US3894695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT592273A AT325396B (de) 1973-07-05 1973-07-05 Desintegrator

Publications (1)

Publication Number Publication Date
US3894695A true US3894695A (en) 1975-07-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
US485494A Expired - Lifetime US3894695A (en) 1973-07-05 1974-07-03 Disintegrator

Country Status (15)

Country Link
US (1) US3894695A (sv)
JP (1) JPS5049765A (sv)
AT (1) AT325396B (sv)
BE (1) BE817280A (sv)
CA (1) CA1042861A (sv)
CH (1) CH590691A5 (sv)
DE (1) DE2431387C2 (sv)
FR (1) FR2235736B1 (sv)
GB (1) GB1474550A (sv)
IL (1) IL45143A (sv)
IT (1) IT1031018B (sv)
NL (1) NL185002C (sv)
SE (1) SE408376B (sv)
YU (1) YU36875B (sv)
ZA (1) ZA744321B (sv)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061281A (en) * 1976-07-16 1977-12-06 J.M.J. Industries, Inc. Striking plate for disintegrating mill
US4406409A (en) * 1980-09-16 1983-09-27 Joachim Durek Disintegrator and method for the operation thereof
US4653700A (en) * 1983-11-25 1987-03-31 Tallinsky Politekhnichesky Institut Disintegrator
US4659025A (en) * 1983-12-05 1987-04-21 Tjumanok Alexei N Disintegrator
US4721259A (en) * 1984-04-23 1988-01-26 Shagarova Bella U Disintegrator
US5009371A (en) * 1988-01-27 1991-04-23 Citadel Investments Limited Rotary disintegrating device
US5597127A (en) * 1995-08-04 1997-01-28 Brown David K Ultrafines coal pulverizer
US5667150A (en) * 1995-09-20 1997-09-16 Arasmith; Stanley Dale Pulverizing, filtering, and transporting apparatus
US5890665A (en) * 1995-09-20 1999-04-06 Arasmith; Stanley Dale Pulverizing, filtering, and transporting apparatus
WO1999030580A1 (de) * 1997-12-16 1999-06-24 Upt Dr Snyckers Gmbh Verfahren und vorrichtung zur verbesserung der wirksamkeit von wirkstoffen, die mindestens aus mineralstoffen bestehen
EP1035237A2 (de) * 1999-03-09 2000-09-13 Rolf Prof. Dr. Hesch Vorrichtung zur Behandlung oder Weiterverarbeitung, insbesondere zur Zerlegung von Stoffen oder Stoffgemischen
US6196284B1 (en) 1994-03-07 2001-03-06 Dana Lequin Wood pulverizer with improved grates and grate components
KR100390192B1 (ko) * 2002-08-02 2003-07-04 (주)일신하이테크 분쇄기
US20090084877A1 (en) * 2002-10-17 2009-04-02 Krause Maschinenbau Gmbh Method and device for the disintegration of especially inorganic materials
WO2009100500A1 (en) * 2008-02-13 2009-08-20 Raymond Brian Harrington Weed and volunteer crop seed destruction
WO2012025770A3 (en) * 2010-08-23 2012-04-12 Creogen D.O.O. Device for micronization of solid materials and its use
CN103167912A (zh) * 2010-08-23 2013-06-19 莱姆巴诺贸易有限公司 用于微粉化固体材料的设备及其用途
RU2508165C1 (ru) * 2012-08-20 2014-02-27 федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Российский государственный технический университет (Новочеркасский политехнический институт)" Дезинтегратор
WO2014098747A1 (en) * 2012-12-21 2014-06-26 Cassandra Oil Technology Ab Reactor, method of decreasing the amount of solid particles in a gas stream from a reactor and use of the reactor
JP2015502462A (ja) * 2011-11-14 2015-01-22 ウーペーエム−キュンメネ コーポレイションＵＰＭ−Ｋｙｍｍｅｎｅ Ｃｏｒｐｏｒａｔｉｏｎ ナノフィブリルセルロースの製造方法および製造装置
US20150373913A1 (en) * 2013-02-19 2015-12-31 University Of South Australia Weed seed devitalization arrangement
CN105214774A (zh) * 2015-09-25 2016-01-06 洛阳市达华非标准设备有限公司 一种双通道破碎物料的破碎机
WO2018053600A1 (en) * 2016-09-23 2018-03-29 Seed Terminator Holdings PTY LTD A multistage hammer mill and a residue processing system incorporating same
US20200107502A1 (en) * 2018-10-04 2020-04-09 Dean Mayerle Weed Seed Destruction
US20210022289A1 (en) * 2018-03-22 2021-01-28 Seed Terminator Holdings PTY LTD An impact mill and a residue processing system incorporating same
CN112791823A (zh) * 2020-12-17 2021-05-14 山东山铝环境新材料有限公司 一种新型干法水泥生产用的研磨装置
US20210282329A1 (en) * 2020-03-12 2021-09-16 Dean Mayerle Weed Seed Destruction with Improved Wear Characterisitics
US11666001B2 (en) 2019-03-14 2023-06-06 Tritana Intellectual Property Ltd. Weed seed destruction
US12016271B2 (en) * 2021-02-03 2024-06-25 Tritana Intellectual Property Ltd. Weed seed destruction with improved wear characterisitics

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6223448A (ja) * 1985-07-22 1987-01-31 株式会社　躍進機械製作所 微粉砕機
JPS6223449A (ja) * 1985-07-22 1987-01-31 株式会社　躍進機械製作所 微粉砕機
US5165609A (en) * 1991-09-05 1992-11-24 Technalum Research, Inc. Method of producing thermally reactive powders using consumable disintegrator disks
US5302182A (en) * 1991-09-05 1994-04-12 Technalum Research, Inc. Method of preparing particles with a controlled narrow distribution
DE4445441A1 (de) * 1994-12-20 1996-06-27 Mitteldeutsche Feuerungs Und U Verschleißschutzeinrichtung für das Schlagrad einer Schlagradmühle
DE102009047818A1 (de) 2009-09-30 2011-04-07 Gharagozlu, Parviz, Bucalemu Verfahren und Vorrichtung zur Zerkleinerung von Erzmaterial
FI20105383A (sv) * 2010-04-14 2011-10-15 Chemec Ab Oy Förfarande för framställning av skivor som innehåller träspånor
US20180243750A1 (en) * 2017-02-24 2018-08-30 Greenvolt LTD Apparatus and method for forming nanoparticles

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338373A (en) * 1938-06-04 1944-01-04 Aurig Max Disintegratorlike device
US3411724A (en) * 1965-05-29 1968-11-19 Sviluppo Silicalcite S P A Cage type disintegrator with blade shaped impacting members, particularly suited forprocessing hard materials
US3549093A (en) * 1967-04-27 1970-12-22 Pallmann W Comminuting machine for comminuting chippable material,especially wood,into chips of predetermined size

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29512C (de) * Firma nagel & kaemp in Hamburg Anordnung von Gebläseflügeln auf Schlagstiftscheiben
GB191274A (en) * 1921-12-24 1923-01-11 Henry Nelson Oswald Improvements to grinding or disintegrating machines
US3331905A (en) * 1964-01-24 1967-07-18 Hint Iohannes Alexandrovich Method of treating particulate material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338373A (en) * 1938-06-04 1944-01-04 Aurig Max Disintegratorlike device
US3411724A (en) * 1965-05-29 1968-11-19 Sviluppo Silicalcite S P A Cage type disintegrator with blade shaped impacting members, particularly suited forprocessing hard materials
US3549093A (en) * 1967-04-27 1970-12-22 Pallmann W Comminuting machine for comminuting chippable material,especially wood,into chips of predetermined size

Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061281A (en) * 1976-07-16 1977-12-06 J.M.J. Industries, Inc. Striking plate for disintegrating mill
US4406409A (en) * 1980-09-16 1983-09-27 Joachim Durek Disintegrator and method for the operation thereof
US4653700A (en) * 1983-11-25 1987-03-31 Tallinsky Politekhnichesky Institut Disintegrator
DE3490555C2 (sv) * 1983-11-25 1988-03-17 Tallinskij Politechniceskij Institut, Reval/Tallin, Su
US4659025A (en) * 1983-12-05 1987-04-21 Tjumanok Alexei N Disintegrator
DE3490592C2 (sv) * 1983-12-05 1989-08-10 Tallinskij Politechniceskij Institut, Reval/Tallin, Su
AT390019B (de) * 1983-12-05 1990-03-12 Tallinsk Polt Inst Desintegrator
US4721259A (en) * 1984-04-23 1988-01-26 Shagarova Bella U Disintegrator
US5009371A (en) * 1988-01-27 1991-04-23 Citadel Investments Limited Rotary disintegrating device
US6196284B1 (en) 1994-03-07 2001-03-06 Dana Lequin Wood pulverizer with improved grates and grate components
US5597127A (en) * 1995-08-04 1997-01-28 Brown David K Ultrafines coal pulverizer
US5667150A (en) * 1995-09-20 1997-09-16 Arasmith; Stanley Dale Pulverizing, filtering, and transporting apparatus
US5890665A (en) * 1995-09-20 1999-04-06 Arasmith; Stanley Dale Pulverizing, filtering, and transporting apparatus
WO1999030580A1 (de) * 1997-12-16 1999-06-24 Upt Dr Snyckers Gmbh Verfahren und vorrichtung zur verbesserung der wirksamkeit von wirkstoffen, die mindestens aus mineralstoffen bestehen
EP1035237A2 (de) * 1999-03-09 2000-09-13 Rolf Prof. Dr. Hesch Vorrichtung zur Behandlung oder Weiterverarbeitung, insbesondere zur Zerlegung von Stoffen oder Stoffgemischen
EP1035237A3 (de) * 1999-03-09 2001-08-22 Rolf Prof. Dr. Hesch Vorrichtung zur Behandlung oder Weiterverarbeitung, insbesondere zur Zerlegung von Stoffen oder Stoffgemischen
US6435433B1 (en) 1999-03-09 2002-08-20 Rolf Hesch Device for treating of processing and especially for disintegrating of substances or compounds
KR100390192B1 (ko) * 2002-08-02 2003-07-04 (주)일신하이테크 분쇄기
US20090084877A1 (en) * 2002-10-17 2009-04-02 Krause Maschinenbau Gmbh Method and device for the disintegration of especially inorganic materials
US7681820B2 (en) * 2002-10-17 2010-03-23 Krause Maschinenbau Gmbh Method and device for the disintegration of especially inorganic materials
US8152610B2 (en) 2008-02-13 2012-04-10 Grains Research And Development Corporation Weed and volunteer crop seed destruction
US20110059782A1 (en) * 2008-02-13 2011-03-10 Grains Research And Development Corporation Weed and volunteer crop seed destruction
WO2009100500A1 (en) * 2008-02-13 2009-08-20 Raymond Brian Harrington Weed and volunteer crop seed destruction
AU2011294851B2 (en) * 2010-08-23 2017-01-05 Lambano Trading Limited Device for micronization of solid materials and its use
WO2012025770A3 (en) * 2010-08-23 2012-04-12 Creogen D.O.O. Device for micronization of solid materials and its use
US8789785B2 (en) 2010-08-23 2014-07-29 Lambano Trading Limited Device for micronization of solid materials and its use
CN103167912B (zh) * 2010-08-23 2015-07-01 莱姆巴诺贸易有限公司 用于微粉化固体材料的设备
CN103167912A (zh) * 2010-08-23 2013-06-19 莱姆巴诺贸易有限公司 用于微粉化固体材料的设备及其用途
US9739011B2 (en) 2011-11-14 2017-08-22 Upm-Kymmene Corporation Method for producing nanofibrillar cellulose
JP2015502462A (ja) * 2011-11-14 2015-01-22 ウーペーエム−キュンメネ コーポレイションＵＰＭ−Ｋｙｍｍｅｎｅ Ｃｏｒｐｏｒａｔｉｏｎ ナノフィブリルセルロースの製造方法および製造装置
RU2508165C1 (ru) * 2012-08-20 2014-02-27 федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Российский государственный технический университет (Новочеркасский политехнический институт)" Дезинтегратор
US9387423B2 (en) 2012-12-21 2016-07-12 Cassandra Oil Technology Ab Reactor, method of decreasing the amount of solid particles in a gas stream from a reactor and use of the reactor
WO2014098747A1 (en) * 2012-12-21 2014-06-26 Cassandra Oil Technology Ab Reactor, method of decreasing the amount of solid particles in a gas stream from a reactor and use of the reactor
US20150373913A1 (en) * 2013-02-19 2015-12-31 University Of South Australia Weed seed devitalization arrangement
US9723790B2 (en) * 2013-02-19 2017-08-08 Grains Research & Development Corporation Weed seed devitalization arrangement
CN105214774A (zh) * 2015-09-25 2016-01-06 洛阳市达华非标准设备有限公司 一种双通道破碎物料的破碎机
AU2017329248B2 (en) * 2016-09-23 2021-09-02 Seed Terminator Holdings PTY LTD A multistage hammer mill and a residue processing system incorporating same
WO2018053600A1 (en) * 2016-09-23 2018-03-29 Seed Terminator Holdings PTY LTD A multistage hammer mill and a residue processing system incorporating same
US11148148B2 (en) 2016-09-23 2021-10-19 Seed Terminator Holdings PTY LTD Multistage hammer mill and a residue processing system incorporating same
US20210022289A1 (en) * 2018-03-22 2021-01-28 Seed Terminator Holdings PTY LTD An impact mill and a residue processing system incorporating same
US11547054B2 (en) * 2018-10-04 2023-01-10 Tritana Intellectual Property Ltd. Weed seed destruction
US20200107502A1 (en) * 2018-10-04 2020-04-09 Dean Mayerle Weed Seed Destruction
US11666001B2 (en) 2019-03-14 2023-06-06 Tritana Intellectual Property Ltd. Weed seed destruction
US20210282329A1 (en) * 2020-03-12 2021-09-16 Dean Mayerle Weed Seed Destruction with Improved Wear Characterisitics
CN112791823A (zh) * 2020-12-17 2021-05-14 山东山铝环境新材料有限公司 一种新型干法水泥生产用的研磨装置
CN112791823B (zh) * 2020-12-17 2022-03-04 山东山铝环境新材料有限公司 一种新型干法水泥生产用的研磨装置
US12016271B2 (en) * 2021-02-03 2024-06-25 Tritana Intellectual Property Ltd. Weed seed destruction with improved wear characterisitics

Also Published As

Publication number Publication date
NL185002B (nl) 1989-08-01
YU185374A (en) 1982-06-18
SE408376B (sv) 1979-06-11
DE2431387A1 (de) 1975-01-23
IT1031018B (it) 1979-04-30
BE817280A (fr) 1974-11-04
CA1042861A (en) 1978-11-21
CH590691A5 (sv) 1977-08-15
FR2235736B1 (sv) 1978-06-02
AT325396B (de) 1975-10-27
FR2235736A1 (sv) 1975-01-31
JPS5049765A (sv) 1975-05-02
IL45143A0 (en) 1974-09-10
DE2431387C2 (de) 1986-02-20
NL7408812A (nl) 1975-01-07
NL185002C (nl) 1990-01-02
GB1474550A (en) 1977-05-25
YU36875B (en) 1984-08-31
IL45143A (en) 1976-05-31
SE7408748L (sv) 1975-01-07
ZA744321B (en) 1975-08-27

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