EP0122902B1 - Drive-through chamber type timber drying kiln - Google Patents
Drive-through chamber type timber drying kiln Download PDFInfo
- Publication number
- EP0122902B1 EP0122902B1 EP84850119A EP84850119A EP0122902B1 EP 0122902 B1 EP0122902 B1 EP 0122902B1 EP 84850119 A EP84850119 A EP 84850119A EP 84850119 A EP84850119 A EP 84850119A EP 0122902 B1 EP0122902 B1 EP 0122902B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drying
- chamber
- chambers
- drying kiln
- kiln
- 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 - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
- F26B15/16—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by wheeled trucks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
- F26B2210/16—Wood, e.g. lumber, timber
Definitions
- the present invention concerns a drive-through chamber type timber drying kiln, where timber loads to be dried are conveyed on a roller track or equivalent through a front door into the drying kiln, and from which drying kiln, subsequent to drying, the timber loads are removed on the opposite side of the drying kiln through a rear door, and in which drying kiln two or more drying chambers are connected in series each chamber being provided with its own means for treatment of drying air to operate independently so that individual drying conditions can be realized in each chamber independently of the other chambers.
- So-called drive-through chamber type drying kilns are known in prior art. Their structure is such that drying kiln loads assembled of drying film packages are carried into the drying chamber on a roller track in front of them, whence the loads are pushed into the drying chamber. The dried loads are taken out through the opposite door of the drying chamber. It is an advantage of these chamber-type drying kilns known in the art that in them the load changing time is comparatively short. However, a disadvantage is the expensive realization of such drying kilns, because they require two opposite doors, and roller tracks on both sides of the drying chamber.
- AT-A-335 918 is known a continuous- operation drying channel comprising two loading zones. However, those zones are only separated from each other by means of an interspace. It is intended that the air should be circulating separately in the different zones, but to a large extent the circulating air in one zone becomes mixed with the circulating air in the adjacent zone. Therefore the temperature and moisture in different zones can only deviate to a very small extent from each other.
- the object of the present invention is to provide a simple design by which the drawbacks mentioned can be substantially reduced, and to provide a chamber-type drying kiln in which the advantageous characteristics of the chamber-type drying kiln, mentioned above, are preserved.
- each chamber is closed and separated from an adjacent chamber by means of a light-weight partition, and that the drying conditions being adjusted such that when the timber loads are being transferred from a first chamber to the next chamber, in this next chamber the drying process is carried on substantially from that point of the drying schedule which had been reached in the drying process in the previous chamber.
- the chamber-type drying kiln comprises four drying chambers K i , K 2 , K 3 and K 4 .
- the chambers K, and K 2 among themselves and the chambers K 3 and K 4 among themselves are connected in series.
- the chambers K, and K 2 in combination and the chambers K 3 and K 4 in combination constitute two chamber groups, both of them having only one front door 11 and one back door 13.
- Through the chamber groups K 1 , K 2 and K 3 , K 4 pass the roller tracks 10.
- the initial parts 10a at these roller tracks are located outside the doors 11, and similarly the ultimate ends 10b of the roller tracks 10 are located outside the rear doors 13.
- the timber loads P, to be dried are brought to the initial ends 10a of the roller tracks, and the finished dried loads P 3 are tkane off the ultimate ends 10b of the roller tracks 10.
- the chamber-type drying kiln comprising two drying kiln groups is composed of outer walls 14 and partitions 16, of a roof 15, and of the front doors 11 and rear doors 13 mentioned. Between the first chambers K, and K 3 and the second chambers K 2 and K 4 are provided light-weight partitions 12, for instance made of flexible fabric- type material, because these partitions 12 need not be thermally lagging.
- the partitions 12 are advantageously of such kind that it is possible to push the drying kiln loads P 2 through them from the first chamber K 1 , K 3 to the second chamber K 2 , K 4 .
- Each drying chamber K 1 -K 4 is provided with means by which circulation F k of drying air through the timber loads P 2 and P 3 composed of packages provided with spacers is achieved.
- Said means comprise one or more blowers 20 and a heating radiator 21 placed in a duct 22.
- On the intake side of the blowers 20 in the duct 22 is introduced through ventilation ducts 26 an inlet air flow F in from outdoors, and similarly, on the pressure side of the blowers 20, an outlet air from F out is taken off through ventilation ducts 25.
- control dampers 23 and 24 are provided in connection with the ventilation ducts 25 and 26 to control dampers 23 and 24, by the aid of which, combined with regulation of the radiators 21, the drying capacity of the circulating air F k is influencable.
- Said means are separated from the load space by a partition 17, which is open on both sides (apertures 18 and 19). Through one aperture 19 the circulating air can pass to one side of the load, and through the other aperture 18 it is enabled to return to the blowers, having in the meantime passed through the loads.
- the direction in which the air circulates is reversed at regular intervals, usually automatically.
- the drive-through chamber type drying kiln described in the foregoing operates as follows.
- the first chambers K, and K 3 and the second chambers K 3 and K 4 of the chamber groups operate independently.
- loads P 2 are transferred from the first chambers K 1 , K 3 into the second chambers K 2 , K 4 .
- drying is carried on subsequent to this transfer as if no transfer had taken place, in other words, after the transfer, one begins to follow the drying schedule in the second chambers K 2 , K 4 starting at that point in the drying process which has been reached in the drying in the first chambers K 1 , K 3 . It is advantageous, to this end, if the circulating air flow F k in the first chambers K 1 , K 3 and in the second chambers K 2 , K 4 have opposite direction.
- each group of chambers contains two drying chambers K 1 , K 2 , K 3 , K 4 . In certain applications there may be even more such chambers in series, for instance three or four.
Abstract
Description
- The present invention concerns a drive-through chamber type timber drying kiln, where timber loads to be dried are conveyed on a roller track or equivalent through a front door into the drying kiln, and from which drying kiln, subsequent to drying, the timber loads are removed on the opposite side of the drying kiln through a rear door, and in which drying kiln two or more drying chambers are connected in series each chamber being provided with its own means for treatment of drying air to operate independently so that individual drying conditions can be realized in each chamber independently of the other chambers.
- So-called drive-through chamber type drying kilns are known in prior art. Their structure is such that drying kiln loads assembled of drying film packages are carried into the drying chamber on a roller track in front of them, whence the loads are pushed into the drying chamber. The dried loads are taken out through the opposite door of the drying chamber. It is an advantage of these chamber-type drying kilns known in the art that in them the load changing time is comparatively short. However, a disadvantage is the expensive realization of such drying kilns, because they require two opposite doors, and roller tracks on both sides of the drying chamber.
- From AT-A-335 918 is known a continuous- operation drying channel comprising two loading zones. However, those zones are only separated from each other by means of an interspace. It is intended that the air should be circulating separately in the different zones, but to a large extent the circulating air in one zone becomes mixed with the circulating air in the adjacent zone. Therefore the temperature and moisture in different zones can only deviate to a very small extent from each other.
- The object of the present invention is to provide a simple design by which the drawbacks mentioned can be substantially reduced, and to provide a chamber-type drying kiln in which the advantageous characteristics of the chamber-type drying kiln, mentioned above, are preserved.
- For attaining these aims and those to be disclosed below, the invention is characterized in that each chamber is closed and separated from an adjacent chamber by means of a light-weight partition, and that the drying conditions being adjusted such that when the timber loads are being transferred from a first chamber to the next chamber, in this next chamber the drying process is carried on substantially from that point of the drying schedule which had been reached in the drying process in the previous chamber. In the following, the invention is described in detail reference being made to an embodiment example of the invention presented in the figures of the drawing attached, to the details of which the invention is not confined.
- Fig. 1 presents in elevational view a chamber-type drying kiln of the invention. Fig. 1 is at the same time the vertical section along the line I-I indicated in Fig. 3.
- Fig. 2 shows the vertical cross section II-II in Fig. 3.
- Fig. 3 shows the horizontal section III-III in Fig. 2.
- As shown in the figures, the chamber-type drying kiln comprises four drying chambers Ki, K2, K3 and K4. The chambers K, and K2 among themselves and the chambers K3 and K4 among themselves are connected in series. Thus, the chambers K, and K2 in combination and the chambers K3 and K4 in combination constitute two chamber groups, both of them having only one
front door 11 and one backdoor 13. Through the chamber groups K1, K2 and K3, K4 pass theroller tracks 10. Theinitial parts 10a at these roller tracks are located outside thedoors 11, and similarly theultimate ends 10b of theroller tracks 10 are located outside therear doors 13. The timber loads P, to be dried are brought to theinitial ends 10a of the roller tracks, and the finished dried loads P3 are tkane off theultimate ends 10b of theroller tracks 10. - The chamber-type drying kiln comprising two drying kiln groups is composed of
outer walls 14 andpartitions 16, of aroof 15, and of thefront doors 11 andrear doors 13 mentioned. Between the first chambers K, and K3 and the second chambers K2 and K4 are provided light-weight partitions 12, for instance made of flexible fabric- type material, because thesepartitions 12 need not be thermally lagging. Thepartitions 12 are advantageously of such kind that it is possible to push the drying kiln loads P2 through them from the first chamber K1, K3 to the second chamber K2, K4. - Each drying chamber K1-K4 is provided with means by which circulation Fk of drying air through the timber loads P2 and P3 composed of packages provided with spacers is achieved. Said means comprise one or
more blowers 20 and aheating radiator 21 placed in aduct 22. On the intake side of theblowers 20 in theduct 22 is introduced throughventilation ducts 26 an inlet air flow Fin from outdoors, and similarly, on the pressure side of theblowers 20, an outlet air from Fout is taken off throughventilation ducts 25. In connection with theventilation ducts control dampers radiators 21, the drying capacity of the circulating air Fk is influencable. Said means are separated from the load space by apartition 17, which is open on both sides (apertures 18 and 19). Through oneaperture 19 the circulating air can pass to one side of the load, and through theother aperture 18 it is enabled to return to the blowers, having in the meantime passed through the loads. The direction in which the air circulates is reversed at regular intervals, usually automatically. - The drive-through chamber type drying kiln described in the foregoing operates as follows. The first chambers K, and K3 and the second chambers K3 and K4 of the chamber groups operate independently. When loads P2 are transferred from the first chambers K1, K3 into the second chambers K2, K4, drying is carried on subsequent to this transfer as if no transfer had taken place, in other words, after the transfer, one begins to follow the drying schedule in the second chambers K2, K4 starting at that point in the drying process which has been reached in the drying in the first chambers K1, K3. It is advantageous, to this end, if the circulating air flow Fk in the first chambers K1, K3 and in the second chambers K2, K4 have opposite direction.
- As has been set forth, each group of chambers contains two drying chambers K1, K2, K3, K4. In certain applications there may be even more such chambers in series, for instance three or four.
- It is thus understood that in accordance with the invention a drive-through chamber type drying kiln has been obtained in which for each chamber group K1, K2 and K3, K4 there are still only two
doors roller track 10 or equivalent track system passing through the chambers.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84850119T ATE55479T1 (en) | 1983-04-19 | 1984-04-12 | PASS-THROUGH TYPE WOOD DRYING KILN. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI831331A FI74136B (en) | 1983-04-19 | 1983-04-19 | GENOMKOERBAR KAMMARTORK FOER VIRKE. |
FI831331 | 1983-04-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0122902A2 EP0122902A2 (en) | 1984-10-24 |
EP0122902A3 EP0122902A3 (en) | 1985-04-17 |
EP0122902B1 true EP0122902B1 (en) | 1990-08-08 |
Family
ID=8517072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84850119A Expired - Lifetime EP0122902B1 (en) | 1983-04-19 | 1984-04-12 | Drive-through chamber type timber drying kiln |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0122902B1 (en) |
AT (1) | ATE55479T1 (en) |
DE (1) | DE3482897D1 (en) |
FI (1) | FI74136B (en) |
NO (1) | NO164127C (en) |
Cited By (15)
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---|---|---|---|---|
US7654529B2 (en) | 2005-05-17 | 2010-02-02 | Scientific Games International, Inc. | Combination scratch ticket and on-line game ticket |
US7662038B2 (en) | 2005-01-07 | 2010-02-16 | Scientific Games International, Inc. | Multi-matrix lottery |
US7699314B2 (en) | 2005-01-07 | 2010-04-20 | Scientific Games International, Inc. | Lottery game utilizing nostalgic game themes |
US7726652B2 (en) | 2004-10-28 | 2010-06-01 | Scientific Games International, Inc. | Lottery game played on a geometric figure using indicia with variable point values |
US7824257B2 (en) | 2005-01-11 | 2010-11-02 | Scientific Games International, Inc. | On-line lottery game in which supplemental lottery-selected indicia are available for purchase |
US7837117B2 (en) | 2003-12-19 | 2010-11-23 | Scientific Games International, Inc. | Embedded optical signatures in documents |
US7874902B2 (en) | 2005-03-23 | 2011-01-25 | Scientific Games International. Inc. | Computer-implemented simulated card game |
US8033905B2 (en) | 2005-04-27 | 2011-10-11 | Scientific Games International, Inc. | Preprinted lottery tickets using a player activated electronic validation machine |
US8262453B2 (en) | 2005-02-09 | 2012-09-11 | Scientific Games International, Inc. | Combination lottery and raffle game |
US8454697B2 (en) | 2008-10-14 | 2013-06-04 | Anulex Technologies, Inc. | Method and apparatus for the treatment of tissue |
US8460081B2 (en) | 2010-05-14 | 2013-06-11 | Scientific Games International, Inc. | Grid-based multi-lottery game and associated method |
US8460319B2 (en) | 2010-01-11 | 2013-06-11 | Anulex Technologies, Inc. | Intervertebral disc annulus repair system and method |
US8808080B2 (en) | 2010-05-14 | 2014-08-19 | Scientific Games International, Inc. | Grid-based lottery game and associated method |
US9482465B2 (en) | 2013-03-15 | 2016-11-01 | Usnr, Llc | Unidirectional multi-path lumber kilns |
US9964359B2 (en) | 2013-03-15 | 2018-05-08 | Usnr, Llc | Multi-pass lumber kilns |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE41824T1 (en) * | 1983-11-15 | 1989-04-15 | Tekma Oy | CONTINUOUS BRICK DRYER AND METHOD OF CONTROLLING ITS OPERATION. |
FI78348C (en) * | 1983-11-15 | 1989-07-10 | Tekma Oy | Method for controlling the function of workable chamber dryer for timber. |
DE3516505C1 (en) * | 1985-05-08 | 1986-07-03 | Lignomat GmbH Ing. H. Klinkmüller, 7148 Remseck | Wood treating chamber |
TW416261B (en) * | 1997-04-24 | 2000-12-21 | Ciba Sc Holding Ag | Process and apparatus for the treatment of coated printed circuit boards |
US8128698B2 (en) | 1999-10-20 | 2012-03-06 | Anulex Technologies, Inc. | Method and apparatus for the treatment of the intervertebral disc annulus |
US7004970B2 (en) | 1999-10-20 | 2006-02-28 | Anulex Technologies, Inc. | Methods and devices for spinal disc annulus reconstruction and repair |
US6592625B2 (en) | 1999-10-20 | 2003-07-15 | Anulex Technologies, Inc. | Spinal disc annulus reconstruction method and spinal disc annulus stent |
US7052516B2 (en) | 1999-10-20 | 2006-05-30 | Anulex Technologies, Inc. | Spinal disc annulus reconstruction method and deformable spinal disc annulus stent |
US20030153976A1 (en) | 1999-10-20 | 2003-08-14 | Cauthen Joseph C. | Spinal disc annulus reconstruction method and spinal disc annulus stent |
US8632590B2 (en) | 1999-10-20 | 2014-01-21 | Anulex Technologies, Inc. | Apparatus and methods for the treatment of the intervertebral disc |
US7935147B2 (en) | 1999-10-20 | 2011-05-03 | Anulex Technologies, Inc. | Method and apparatus for enhanced delivery of treatment device to the intervertebral disc annulus |
US7615076B2 (en) | 1999-10-20 | 2009-11-10 | Anulex Technologies, Inc. | Method and apparatus for the treatment of the intervertebral disc annulus |
US7146747B2 (en) | 2000-09-25 | 2006-12-12 | Windsor Engineering Group | Timber drying kiln |
CN102597676B (en) * | 2010-05-25 | 2015-07-01 | 马来西亚森林研究院 | High-temperature lumber treatment system |
US9737294B2 (en) | 2013-01-28 | 2017-08-22 | Cartiva, Inc. | Method and system for orthopedic repair |
AU2014209124A1 (en) | 2013-01-28 | 2015-09-17 | Cartiva, Inc. | Systems and methods for orthopedic repair |
US9746240B2 (en) | 2014-06-03 | 2017-08-29 | Usnr, Llc | Lumber kiln conveyor system |
SE1751496A1 (en) * | 2017-12-05 | 2019-06-06 | Valutec Ab | Workable wood dryer and conveyor intended for such wood dryer |
CN110103297B (en) * | 2019-05-09 | 2024-03-15 | 南京林业大学 | Manufacturing method of anti-corrosion bamboo integrated material component |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE368740B (en) * | 1966-08-22 | 1974-07-15 | Svenska Flaektfabriken Ab | |
SE367055B (en) * | 1966-09-09 | 1974-05-13 | Svenska Flaektfabriken Ab | |
AT335918B (en) * | 1974-07-11 | 1977-04-12 | Vanicek Viktor | DRYING SYSTEM, IN PARTICULAR DRYING CHANNEL |
-
1983
- 1983-04-19 FI FI831331A patent/FI74136B/en not_active Application Discontinuation
-
1984
- 1984-04-11 NO NO841430A patent/NO164127C/en unknown
- 1984-04-12 EP EP84850119A patent/EP0122902B1/en not_active Expired - Lifetime
- 1984-04-12 AT AT84850119T patent/ATE55479T1/en active
- 1984-04-12 DE DE8484850119T patent/DE3482897D1/en not_active Expired - Fee Related
Cited By (21)
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US8177136B2 (en) | 2003-12-19 | 2012-05-15 | Scientific Games International, Inc. | Embedded optical signatures in documents |
US7837117B2 (en) | 2003-12-19 | 2010-11-23 | Scientific Games International, Inc. | Embedded optical signatures in documents |
US8109513B2 (en) | 2004-10-28 | 2012-02-07 | Scientific Games International, Inc. | Lottery game played on a geometric figure using indicia with variable point values |
US7726652B2 (en) | 2004-10-28 | 2010-06-01 | Scientific Games International, Inc. | Lottery game played on a geometric figure using indicia with variable point values |
US7662038B2 (en) | 2005-01-07 | 2010-02-16 | Scientific Games International, Inc. | Multi-matrix lottery |
US7699314B2 (en) | 2005-01-07 | 2010-04-20 | Scientific Games International, Inc. | Lottery game utilizing nostalgic game themes |
US8056900B2 (en) | 2005-01-07 | 2011-11-15 | Scientific Games International, Inc. | Grid-based lottery game and associated system |
US7824257B2 (en) | 2005-01-11 | 2010-11-02 | Scientific Games International, Inc. | On-line lottery game in which supplemental lottery-selected indicia are available for purchase |
US8262453B2 (en) | 2005-02-09 | 2012-09-11 | Scientific Games International, Inc. | Combination lottery and raffle game |
US7874902B2 (en) | 2005-03-23 | 2011-01-25 | Scientific Games International. Inc. | Computer-implemented simulated card game |
US8033905B2 (en) | 2005-04-27 | 2011-10-11 | Scientific Games International, Inc. | Preprinted lottery tickets using a player activated electronic validation machine |
US8308162B2 (en) | 2005-05-17 | 2012-11-13 | Scientific Games International, Inc. | Combination scratch ticket and on-line game ticket |
US7654529B2 (en) | 2005-05-17 | 2010-02-02 | Scientific Games International, Inc. | Combination scratch ticket and on-line game ticket |
US8454697B2 (en) | 2008-10-14 | 2013-06-04 | Anulex Technologies, Inc. | Method and apparatus for the treatment of tissue |
US9192372B2 (en) | 2008-10-14 | 2015-11-24 | Krt Investors, Inc. | Method for the treatment of tissue |
US8460319B2 (en) | 2010-01-11 | 2013-06-11 | Anulex Technologies, Inc. | Intervertebral disc annulus repair system and method |
US8652153B2 (en) | 2010-01-11 | 2014-02-18 | Anulex Technologies, Inc. | Intervertebral disc annulus repair system and bone anchor delivery tool |
US8460081B2 (en) | 2010-05-14 | 2013-06-11 | Scientific Games International, Inc. | Grid-based multi-lottery game and associated method |
US8808080B2 (en) | 2010-05-14 | 2014-08-19 | Scientific Games International, Inc. | Grid-based lottery game and associated method |
US9482465B2 (en) | 2013-03-15 | 2016-11-01 | Usnr, Llc | Unidirectional multi-path lumber kilns |
US9964359B2 (en) | 2013-03-15 | 2018-05-08 | Usnr, Llc | Multi-pass lumber kilns |
Also Published As
Publication number | Publication date |
---|---|
NO841430L (en) | 1984-10-22 |
NO164127C (en) | 1990-08-29 |
FI831331L (en) | 1984-10-20 |
EP0122902A2 (en) | 1984-10-24 |
DE3482897D1 (en) | 1990-09-13 |
ATE55479T1 (en) | 1990-08-15 |
EP0122902A3 (en) | 1985-04-17 |
FI831331A0 (en) | 1983-04-19 |
NO164127B (en) | 1990-05-21 |
FI74136B (en) | 1987-08-31 |
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