Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
  • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
  • B27K5/04—Combined bleaching or impregnating and drying of wood
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
  • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
  • B27K3/16—Inorganic impregnating agents
  • B27K3/20—Compounds of alkali metals or ammonium
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
  • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
  • B27K3/34—Organic impregnating agents
  • B27K3/36—Aliphatic compounds
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
  • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
  • B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
  • B27K2240/00—Purpose of the treatment
  • B27K2240/70—Hydrophobation treatment

Definitions

• the present invention consists in a method for treating solid wood by diffusiorrr "characterized in particular by the development of a longitudinal reservoir within the stem, wherein one puts a processing product that will impregnate the wood by diffusion 5 internal - external.
• Wood treatment by diffusion or double diffusion is well known. However it is an external - internal diffusion. That is, the treatment product is applied to the outer surface of the wood, generally small in size, and diffuses inwardly.
• Conventional double diffusion treatment consists in using two different treatment products, separately and successively, in order to put them in contact only when they are already inside the wood, insofar as their combination gives rise to compound which is difficult to dissolve in water and which could not have diffused into the wood.
• the antiseptic product usually in the form of paste, will be found in excess on the outer surface of the wood; you have to pick it up and clean the wood.
• the trunks are stored in a shed without any particular arrangements, until the diffusion is complete.
• cooking salt NaCl
• Cooking salt acts mainly by dehydration, thanks to its very high osmotic power. See also meat preservation and fish salting. However, cooking salt is very soluble in water, and therefore easily leachable.
• the oil itself has antiseptic properties, which greatly enhances the protection provided to wood;
• the oil increases the resistance of the salt to leaching, which allows the use of treated wood outdoors or in contact with the ground;
• the oil covers the wood assembly fittings with an impermeable layer that protects them against corrosion.
• a technique of drilling an interior cavity in a long trunk is part of the present invention.
• This technique consists in using an auger whose body is not perfectly rigid, contrary to the usual situation.
• it For drilling to be possible with such an auger, it must be maintained in the axis by fixed supports.
• bearings allow the auger to rotate freely in the fixed supports. These bearings are easily detachable from their respective fixed supports.
• the inner diameter of the bearings is slightly greater than the outer diameter of the auger, so that it can slide unhindered inside said bearings. So in case of rotation of the auger, the bearing allows it to rotate without friction, and in case of translational movement (when the auger enters the trunk), the bearing allows it to advance unhindered.
• the bearing is fixed on a horizontal support.
• the operator who holds the drill at the other end of the auger, successively detaches the bearings of the various supports and tilts the latter in a vertical position as the bit penetrates the trunk and the operator advances with the drill.
• a conventional auger is lengthened with a hose of adequate length, such as a 1/2 "galvanized pipe such as is commonly used in plumbing.
• the diameter of the pipe is slightly smaller than that of the auger head to allow a free space for evacuating the sawdust entrained by the water injected into the pipe from the other end of the latter, with the aid of a device making it possible to seal between the rotating pipe and the fixed water supply under a certain pressure.
• the inner cavity can be limited to the part of the buried column. But the part not exposed to moisture must have been treated "once and for all" with cooking salt, borates or any other effective product.
• To greatly reduce the charging intervals of the inner tank it is necessary to slow down as much as possible the migration of the treatment product to the periphery, while ensuring that the latter retains a sufficient dose to discourage termites and prevent the development of rot fungi. It is for example to interpose a semi-permeable device between the product stock and the inner surface of the pole, to add fats which have in addition a repellent effect, etc.
• Patent document FR 808588 discloses a method of treatment by displacement of sap, a hollowed out pole inside, in order to overcome the inequality of the distribution of the treatment product in the radial direction. To do this, the method aims to inject the treatment product radially from the outside to the inside and vice versa, and axially from the base to the top and vice versa.
• the objective pursued nor the principles used nor the expected results have nothing to do with the present invention.
• JP 8053901 also relates to a technique for preserving a wooden beam, which consists in producing an internal cavity for filling it with activated carbon.
• FIG. 1 shows a wooden post used in the construction of a building, so with a part in contact with the ground and a part without contact with the ground and not subjected to bad weather.
• Figure 2 shows a power line pole or telephone, or a pole used in the construction of a fence.
• Figure 3 shows the concentration gradient of the treatment product, from the inner reserve to the periphery.
• Figure 4 shows a lengthening system of a wood wick, which allows to hollow out the central part of the pole of any length.
• FIG 3 there are: the wood to be treated (1), the refillable tank (2), the outer surface of the post (7), and the pace of the density of the treatment product (8).

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Wood Science & Technology (AREA)
• Forests & Forestry (AREA)
• Chemical & Material Sciences (AREA)
• Inorganic Chemistry (AREA)
• Chemical And Physical Treatments For Wood And The Like (AREA)

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

Country Status (5)

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Citations (4)

Family Cites Families (12)

• 2005
  • 2005-07-28 MA MA28413A patent/MA27817A1/fr unknown
  • 2005-09-06 EP EP05786426A patent/EP1877231A4/de not_active Withdrawn
  • 2005-09-06 AP AP2007003965A patent/AP2007003965A0/xx unknown
  • 2005-09-06 WO PCT/CA2005/001356 patent/WO2006026854A1/fr not_active Ceased
  • 2005-09-06 CH CH00303/07A patent/CH697453B1/fr not_active IP Right Cessation

Patent Citations (4)

Non-Patent Citations (1)

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