CA1201695A - Device in connection with choppers - Google Patents
Device in connection with choppersInfo
- Publication number
- CA1201695A CA1201695A CA000426229A CA426229A CA1201695A CA 1201695 A CA1201695 A CA 1201695A CA 000426229 A CA000426229 A CA 000426229A CA 426229 A CA426229 A CA 426229A CA 1201695 A CA1201695 A CA 1201695A
- Authority
- CA
- Canada
- Prior art keywords
- knife
- chopper disk
- filler piece
- knife holder
- disk
- Prior art date
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2614—Means for mounting the cutting member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
- B26D1/28—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting
- B26D1/29—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting with cutting member mounted in the plane of a rotating disc, e.g. for slicing beans
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
- B27L11/005—Tools therefor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Debarking, Splitting, And Disintegration Of Timber (AREA)
- Crushing And Pulverization Processes (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Food-Manufacturing Devices (AREA)
- Harvester Elements (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The present invention provides a device for use in choppers with a rotating chopper disk, with a top side and a bottom side, having a knife attached to a knife holder disposed radially on the chopper disk, characterized in that the knife holder includes a filler piece fitting into a recess in the chopper disk and a knife holder cassette for the knife, the knife holder cassette having a top part and a bottom part, the top and bottom parts being shaped to clamp the knife therebetween, the filler piece incorporating a mounting for the knife holder cassette, the cassette being attached by means of a fastener inserted from the top side of the chopper disk, the fastener abutting the top part of the knife holder cassette and clamping the knife in place.
The present invention provides a device for use in choppers with a rotating chopper disk, with a top side and a bottom side, having a knife attached to a knife holder disposed radially on the chopper disk, characterized in that the knife holder includes a filler piece fitting into a recess in the chopper disk and a knife holder cassette for the knife, the knife holder cassette having a top part and a bottom part, the top and bottom parts being shaped to clamp the knife therebetween, the filler piece incorporating a mounting for the knife holder cassette, the cassette being attached by means of a fastener inserted from the top side of the chopper disk, the fastener abutting the top part of the knife holder cassette and clamping the knife in place.
Description
6~
The present invention relates to a device for use in choppers having a rotating chopper disk with one or more knives mounted on knife holdexs disposed radial:Ly on the chopper disk.
A problem experienced with choppers of this type has been that of ensuring the firm at-tachment of the kn:ives so as to withstand the severe s-tresses to which the knives and their at-tachments are subjected during operation. Fre-quen-t retensioning and adjustmen-t of the knives were formerly necessary.
Swedish Paten-t No. 7314475-0 discloses a dev:ice for use in connec-tion wi-th such choppers, equipped with radial through openings in the chopper disk for the flow of chips and with, preferably, reversible knives arranged along said openings, to ensure -the firm a-ttachment of said knives with good hea-t conductivity. The knife is clamped between a subjacent part of -the chopper disk, which also ac-ts as a chip guide for the chips passing through the opening, and a superjacen-t knife holder, which forms a part of -the grind-ing surface between the radially disposed knives on the upper side of the disk. This device provides a very firm attachment of the knife and high thermal conductivity from the knife to the a-t-tachmen-t componen-ts. Fastening is by means of a bolt passing from the knife holder through an opening in the chip guide and the chopper disk -to the under-side of the chopper disk, where i-t is secured by a nut. To reverse or change the knife it is necessary to undo the nut on the underside of -the disk and lift up -the rela-tive large, heavy knife holder.
The present invention, while re-taining -the firm attachment of the kniEe previously disclosed, simplifies the ]cnife clamping device so as to facilita-te the changing or reversing of the knife.
"~
According to the present invention in one aspect thereof there is provided a device for use in choppers with a rota-ting chopper disk, with a top side and a bottom side, having a ]cnife attached to a knife holder disposed radiAlly on the chopper disk, characterized in that the knife holder includes a filler piece fi-tting :in-to a recess in -the chopper disk and a ~snife holder cassette for the knife, the knife holder cassette having a top part and a bottom part, the top and bottom par-ts being shaped to clamp -the knife therebetween, the filler piece incorporating a mounting for the knife holder cassette, the cassette being attached by means of a fastener inser-ted from -the top side of the chopper disk, the fastener abutting the top par-t of -the knife holder casse-t-te and clamping the ]snife in place.
In another aspect thereof, the presen-t invention provides a device for use in choppers with a rotating chopper disk, with a -top side and a bottom side, having a knife a-ttached to a knife holder disposed radially on the chopper disk, characterized in that the knife holder includes a filler piece fi-tting in-to a recess in the chopper disk, the filler piece being designed to be held fast in the recess in the chopper disk by a bol-t passing through to the bot-tom side of the chopper disk and a nut on -the bottom s:ide of the chopper disk, the filler piece incorporating a moun-ting for a knife shaped to fit the mounting, the knife being attached by means of a fas-tener inserted from the top side of the chopper disk, the fastener abutting the knife and clarnping the knife in place. Suitably the fastener inser-ted from the top side of the chopper disk is a screw whose head is counter-sunk in a top surface of the knife. Preferably -the filler f piece forms one edge of an opening for chip flow throuyh the chopper disk and wherein the interface between the filler piece and the chopper disk is rebated in such a manner that diarne-ter of the opening increases in an axial direction away from the knife. Desirably -the mounting has a projec-tion la -"~, - -wh:ich fits a matching recess in -the knife. More preferably -the device inc]udes a wear p]ate abutting on the knife, the wear plate being fastened to the filler piece by screws whose heads are countersunk in the wear plate.
In one embodiment of the present invention -the fastener inser-ted from the -top side of the chopper disk is a screw whose head is countersunk in a top surface of the knife holder cassette.
In another embodimen-t the filler piece is adap-ted to be held fast in the recess in the chopper disk by means of a bolt passing through to the bot-tom side of the chopper disk and a nut on -the bottom side.
In s-till another embodiment the fil]er piece forms one edge of an opening for chip flow through -the chopper disk and wherein -the interface between the bot-tom part and the filler piece and -the interface between -the filler piece and the chopper disk are rebated in such a manner that the diameter of the opening increases in an axial direction away from the knife.
The invention will now be more par-ticularly des-cribed with reference to embodimen-ts illustrated in -the accompanying drawings, in which:-Figure 1 is a longitudinal section -through part of a chopping disk, equipped with a knife device in accordance with one embodiment of the invention; and ; Figure 2 shows a similar section of ano-ther embodi-ment.
- lb -
The present invention relates to a device for use in choppers having a rotating chopper disk with one or more knives mounted on knife holdexs disposed radial:Ly on the chopper disk.
A problem experienced with choppers of this type has been that of ensuring the firm at-tachment of the kn:ives so as to withstand the severe s-tresses to which the knives and their at-tachments are subjected during operation. Fre-quen-t retensioning and adjustmen-t of the knives were formerly necessary.
Swedish Paten-t No. 7314475-0 discloses a dev:ice for use in connec-tion wi-th such choppers, equipped with radial through openings in the chopper disk for the flow of chips and with, preferably, reversible knives arranged along said openings, to ensure -the firm a-ttachment of said knives with good hea-t conductivity. The knife is clamped between a subjacent part of -the chopper disk, which also ac-ts as a chip guide for the chips passing through the opening, and a superjacen-t knife holder, which forms a part of -the grind-ing surface between the radially disposed knives on the upper side of the disk. This device provides a very firm attachment of the knife and high thermal conductivity from the knife to the a-t-tachmen-t componen-ts. Fastening is by means of a bolt passing from the knife holder through an opening in the chip guide and the chopper disk -to the under-side of the chopper disk, where i-t is secured by a nut. To reverse or change the knife it is necessary to undo the nut on the underside of -the disk and lift up -the rela-tive large, heavy knife holder.
The present invention, while re-taining -the firm attachment of the kniEe previously disclosed, simplifies the ]cnife clamping device so as to facilita-te the changing or reversing of the knife.
"~
According to the present invention in one aspect thereof there is provided a device for use in choppers with a rota-ting chopper disk, with a top side and a bottom side, having a ]cnife attached to a knife holder disposed radiAlly on the chopper disk, characterized in that the knife holder includes a filler piece fi-tting :in-to a recess in -the chopper disk and a ~snife holder cassette for the knife, the knife holder cassette having a top part and a bottom part, the top and bottom par-ts being shaped to clamp -the knife therebetween, the filler piece incorporating a mounting for the knife holder cassette, the cassette being attached by means of a fastener inser-ted from -the top side of the chopper disk, the fastener abutting the top par-t of -the knife holder casse-t-te and clamping the ]snife in place.
In another aspect thereof, the presen-t invention provides a device for use in choppers with a rotating chopper disk, with a -top side and a bottom side, having a knife a-ttached to a knife holder disposed radially on the chopper disk, characterized in that the knife holder includes a filler piece fi-tting in-to a recess in the chopper disk, the filler piece being designed to be held fast in the recess in the chopper disk by a bol-t passing through to the bot-tom side of the chopper disk and a nut on -the bottom s:ide of the chopper disk, the filler piece incorporating a moun-ting for a knife shaped to fit the mounting, the knife being attached by means of a fas-tener inserted from the top side of the chopper disk, the fastener abutting the knife and clarnping the knife in place. Suitably the fastener inser-ted from the top side of the chopper disk is a screw whose head is counter-sunk in a top surface of the knife. Preferably -the filler f piece forms one edge of an opening for chip flow throuyh the chopper disk and wherein the interface between the filler piece and the chopper disk is rebated in such a manner that diarne-ter of the opening increases in an axial direction away from the knife. Desirably -the mounting has a projec-tion la -"~, - -wh:ich fits a matching recess in -the knife. More preferably -the device inc]udes a wear p]ate abutting on the knife, the wear plate being fastened to the filler piece by screws whose heads are countersunk in the wear plate.
In one embodiment of the present invention -the fastener inser-ted from the -top side of the chopper disk is a screw whose head is countersunk in a top surface of the knife holder cassette.
In another embodimen-t the filler piece is adap-ted to be held fast in the recess in the chopper disk by means of a bolt passing through to the bot-tom side of the chopper disk and a nut on -the bottom side.
In s-till another embodiment the fil]er piece forms one edge of an opening for chip flow through -the chopper disk and wherein -the interface between the bot-tom part and the filler piece and -the interface between -the filler piece and the chopper disk are rebated in such a manner that the diameter of the opening increases in an axial direction away from the knife.
The invention will now be more par-ticularly des-cribed with reference to embodimen-ts illustrated in -the accompanying drawings, in which:-Figure 1 is a longitudinal section -through part of a chopping disk, equipped with a knife device in accordance with one embodiment of the invention; and ; Figure 2 shows a similar section of ano-ther embodi-ment.
- lb -
2 ~ s Fiaure 1 shows a chopping disk 10 with an opening 12 for the chip flow. The chopper disk 10 is equipped at one oF -the edges adjoining the opening 12 - the lef-t edye in Figure 1 - with a rebated recess 14 designed to accommodate a chip guide and a knife holder in -the manner discl~sed, for example, in the aforementioned Swedish patent 7314475-0 (USA pa-tent 4,047,670). To the rear o-F -the rebate is a but-ting wear plate 16 fixed on the surface of the chopper disk in a manner likewise disclosed in -the aforementioned patent. A plurality of such openings 12, recesses 14 and associated wear plates 16 are arranged at regular in-tervals about the circumference of the chopper disk 10.
In the recess 14 there is inserted a filler piece 18 which is retained therein by means of a bolt 20, which is screwed into the filler piece 18 and -tightened by means of a nut 22 on the underside o-f the chopper disk. Thus this filler piece largely replaces the former chip guide and knife holder and is shaped to fit pre-existing recesses 14 in the chopper disk 10. The filler piece is provided at the upper part thereof, facing the opening 12, with a recess 24. In this recess there is inserted a mini-cassette consis-ting of a top part 26 and a bottom part 28, which parts 26, 28 are shaped so as to accommodate between them a kn-ife, preferably a reversible knife 30 of the type disclosed in the aforesaid patent. In i-ts assembled condition, with the top part 26 and the bottom part 28 accommodating the knife 30 between them, the said cassette fits into the recess 24 in the filler piece 18. The cassette is provided for this purpose with a through hole for the insertion -from above of a -fastener, such as a screw 32 or similar, whose thread engayes with the filler piece l8. In this condition the parts 26, 28 of the casse~tte have a clearance between their horizontal -faces so as to exert, by means of -the torque on the screw 32, a clamping force on the knife 30 which will reliably hold fas-t said knife between the parts of the cas-sette. In order to preven-t particles separated -from the chips from penetrating into the interfaces between the knife 30 and the bot-tom part 28 of the cassette, between the said bottom part 28 and -the filler piece 18, and between the filler piece 1~ and the chopper disk 10, all these components are so disposed that the width of the opening 12 increases stepwise downwards at each interface, as illus-trated at 34, 36 and 38 in Fiyure 1. It is also advisable -for the opening 12 to flare conically downwards in order to prevent clogging.
In the recess 14 there is inserted a filler piece 18 which is retained therein by means of a bolt 20, which is screwed into the filler piece 18 and -tightened by means of a nut 22 on the underside o-f the chopper disk. Thus this filler piece largely replaces the former chip guide and knife holder and is shaped to fit pre-existing recesses 14 in the chopper disk 10. The filler piece is provided at the upper part thereof, facing the opening 12, with a recess 24. In this recess there is inserted a mini-cassette consis-ting of a top part 26 and a bottom part 28, which parts 26, 28 are shaped so as to accommodate between them a kn-ife, preferably a reversible knife 30 of the type disclosed in the aforesaid patent. In i-ts assembled condition, with the top part 26 and the bottom part 28 accommodating the knife 30 between them, the said cassette fits into the recess 24 in the filler piece 18. The cassette is provided for this purpose with a through hole for the insertion -from above of a -fastener, such as a screw 32 or similar, whose thread engayes with the filler piece l8. In this condition the parts 26, 28 of the casse~tte have a clearance between their horizontal -faces so as to exert, by means of -the torque on the screw 32, a clamping force on the knife 30 which will reliably hold fas-t said knife between the parts of the cas-sette. In order to preven-t particles separated -from the chips from penetrating into the interfaces between the knife 30 and the bot-tom part 28 of the cassette, between the said bottom part 28 and -the filler piece 18, and between the filler piece 1~ and the chopper disk 10, all these components are so disposed that the width of the opening 12 increases stepwise downwards at each interface, as illus-trated at 34, 36 and 38 in Fiyure 1. It is also advisable -for the opening 12 to flare conically downwards in order to prevent clogging.
3 ~ 16~35 In the embodiment illustrated in Figure 2 the components common to both Figures are denoted by the same numbers as in Figure 1 with the suffix "a". The chopper disk lOa is provided with a recess 14a having perpendiclllar walls. The filler piece 18a consists of a lower section 40 which is welded to the rear of the recess 14a in the chopper disk. lOa and an upper section 42 fastened by means of a bolt 20a which passes through the chopper disk to the underside thereof, where the bolt is tightened by means of a nut 22a. The upper section 42 of the filler piece 18a serves as a knife holder and is provided with a projection 44 which engages with a matching recess in the knife 30a. After the knife, in the direction of rotation, the knife holder 42 is provided with a separate wear plate 46. The kni-fe 30a and the wear plate 46 are fastened to the knife holder 42 From the upper side of the chopper disk by means oF screws 48, 50, so that these parts are readily replaced.
Claims (9)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A device for use in choppers with a rotating chopper disk, with a top side and a bottom side, having a knife attached to a knife holder disposed radially on the chopper disk, characterized in that the knife holder includes a filler piece fitting into a recess in the chopper disk and a knife holder cassette for the knife, the knife holder cassette having a top part and a bottom part, the top and bottom parts being shaped to clamp the knife therebetween, the filler piece incorporating a mounting for the knife holder cassette, the cassette being attached by means of a fastener inserted from the top side of the chopper disk, the fastener abutting the top part of the knife holder cassette and clamping the knife in place.
2. A device for use in choppers with a rotating chopper disk, with a top side and a bottom side, having a knife attached to a knife holder disposed radially on the chopper disk, characterized in that the knife holder includes a filler piece fitting into a recess in the chopper disk, the filler piece being designed to be held fast in the recess in the chopper disk by a bolt passing through to the bottom side of the chopper disk and a nut on the bottom side of the chopper disk, the filler piece incorporating a mount-ing for a knife shaped to fit the mounting the knife being attached by means of a fastener inserted from the top side of the chopper disk, the fastener abutting the knife and clamping the knife in place.
3. A device according to claim 2, in which the fastener inserted from the top side of the chopper disk is a screw whose head is countersunk in a top surface of the knife.
4. A device according to claim 2, wherein the filler piece forms one edge of an opening for chip flow through the chopper disk and wherein the interface between the filler piece and the chopper disk is rebated in such a manner that the diameter of the opening increases in an axial direction away from the knife.
5. A device according to claim 2, in which the mounting has a projection which fits a matching recess in the knife.
6. A device according to claim 1, in which the fastener inserted from the top side of the chopper disk is a screw whose head in countersunk in a top surface of the knife holder cassette.
7. A device according to claim 1, in which the filler piece is adapted to be held fast in the recess in the chopper disk by means of a bolt passing through to the bot-tom side of the chopper disk and a nut on the bottom side.
8. A device according to claim 1, wherein the filler piece forms one edge of an opening for chip flow through the chopper disk and wherein the interface between the bottom part and the filler piece and the interface between the filler piece and the chopper disk are rebated in such a manner that the diameter of the opening increases in an axial direction away from the knife.
9. A device according to claim 2, including a wear plate abutting on the knife, the wear plate being fas-tened to the filler piece by screws whose heads are counter-sunk in the wear plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8202509A SE453373B (en) | 1982-04-21 | 1982-04-21 | DEVICE FOR CHIPPING MACHINES |
| SE8202509-9 | 1982-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1201695A true CA1201695A (en) | 1986-03-11 |
Family
ID=20346595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000426229A Expired CA1201695A (en) | 1982-04-21 | 1983-04-20 | Device in connection with choppers |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5916707A (en) |
| AT (1) | AT386376B (en) |
| BR (1) | BR8302065A (en) |
| CA (1) | CA1201695A (en) |
| DE (1) | DE3314127A1 (en) |
| FI (1) | FI78412C (en) |
| FR (1) | FR2525517B1 (en) |
| SE (1) | SE453373B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT397629B (en) * | 1990-02-05 | 1994-05-25 | Boehler Ybbstalwerke | Device for fastening cutters on rotating hacking discs of (wood-chip) hacking machines and (disposable) hacking cutters for this |
| FI90322C (en) * | 1992-11-18 | 1994-01-25 | Andritz Patentverwaltung | Method and apparatus for replacing a disc retrieval blade |
| FI933131A0 (en) * | 1993-07-08 | 1993-07-08 | Sunds Defibrator Woodhandling | SKAERSYSTEM, SKAER, STYRDEL OCH FYLLNINGSDEL FOER MASKIN ANVAEND I FLISHUGGNING SAMT FOERFARANDE FOER BYTNING AV SKAER |
| FR2782465B1 (en) * | 1998-08-20 | 2000-11-10 | Stephane Badot | KNIFE FOR A KNIFE HOLDER OF A GRANULATING DEVICE FOR PLASTIC MATERIALS, AS WELL AS KNIFE HOLDER AND GRANULATING DEVICE COMPRISING SUCH A KNIFE |
| DE19858740C1 (en) | 1998-12-18 | 2000-06-08 | Paul Guels Maschinenbau | Cutter tool head with cutter and cutter holder, with fixing device having holding force applied between V-shaped angled contact surfaces |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3542302A (en) * | 1968-09-11 | 1970-11-24 | Frank Louis Salzmann Jr | Wood chipper disc and knife mounting |
| FR2096228A5 (en) * | 1970-06-12 | 1972-02-11 | Pitea Maskin Industri | |
| SE393763B (en) * | 1973-10-25 | 1977-05-23 | Iggesunds Bruk Ab | KNIFE DEVICE FOR TILE SHOWER |
| JPS5544692A (en) * | 1978-09-27 | 1980-03-29 | Matsushita Electric Ind Co Ltd | Cursor indicator system |
| DE2934792C2 (en) * | 1979-08-29 | 1981-12-03 | Crones & Co oHG, Kaltpreßwerk Ansbach, 8800 Ansbach | Motor-driven shredding device for waste, in particular garden waste. |
| US4298044A (en) * | 1980-01-21 | 1981-11-03 | The Filer And Stowell Company | Wood chipper |
| FR2477945A1 (en) * | 1980-03-14 | 1981-09-18 | Creusot Loire | Cutter for wood chips - has two useful positions, and may be re-ground quickly |
-
1982
- 1982-04-21 SE SE8202509A patent/SE453373B/en not_active IP Right Cessation
-
1983
- 1983-04-19 DE DE19833314127 patent/DE3314127A1/en active Granted
- 1983-04-20 FI FI831351A patent/FI78412C/en not_active IP Right Cessation
- 1983-04-20 FR FR8306505A patent/FR2525517B1/en not_active Expired - Fee Related
- 1983-04-20 BR BR8302065A patent/BR8302065A/en not_active IP Right Cessation
- 1983-04-20 CA CA000426229A patent/CA1201695A/en not_active Expired
- 1983-04-20 AT AT141083A patent/AT386376B/en not_active IP Right Cessation
- 1983-04-21 JP JP6932783A patent/JPS5916707A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FI78412C (en) | 1989-08-10 |
| SE453373B (en) | 1988-02-01 |
| SE8202509L (en) | 1983-10-22 |
| AT386376B (en) | 1988-08-10 |
| FI831351L (en) | 1983-10-22 |
| FI78412B (en) | 1989-04-28 |
| FI831351A0 (en) | 1983-04-20 |
| JPS5916707A (en) | 1984-01-27 |
| DE3314127C2 (en) | 1990-03-22 |
| BR8302065A (en) | 1983-12-27 |
| DE3314127A1 (en) | 1983-10-27 |
| ATA141083A (en) | 1988-01-15 |
| FR2525517A1 (en) | 1983-10-28 |
| FR2525517B1 (en) | 1990-05-04 |
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