Re-sawable repair of defective board of lumber
OwnerThomas F. Corteseinventor
Life of this patent
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Abstract
A board of lumber containing a defect, such as a knot, is repaired by cutting an opening between major surfaces of the board and filling the opening with a plug of adhesive filler material or a wood plug which is adhered to the wall of the opening. The opening and plug are formed to have a non-circular shape. This facilitates re-sawing of the board to form two thinner boards as the shape of the plug prevents it from being loosened by turning forces created by the saw blade which is used to effect the re-sawing operation. In some of the repair configurations, portions of the plug which remain in both of the thinner boards following re-sawing also cannot be dislodged by external forces exerted against the surfaces of the board.
Claims11
In a method of repairing a defect in a board of lumber, the steps comprising cutting an opening through said board at the location of the defect to remove said defect which opening extends from a first major surface of the board to a second major surface of the board including forming said opening to be of greater width in a first direction than in a second differing direction, filling the opening with a conforming plug of material, and forming two thinner repaired boards by re-sawing said board including said plug along a planar zone that extends between ends of the board between said major surfaces.
In a method of repairing a defective board of lumber in which an opening is cut through the board to remove a defect therein which opening extends from one major surface of the board to the other major surface of the board and wherein the opening is filled with a conforming plug of material, the further steps comprising:
- forming said opening to have a width which both increases and decreases within a first region of said board and also increases and decreases within a second region of said board, said first region of said board being between said one major surface of said board and a planar zone which extends along the board at a location which is between said major surfaces thereof, said second region of said board being between said other major surface of said board and said planar zone, and wherein said opening is also formed to be wider in a first direction that extends parallel to said major surfaces than in a second differing direction which also extends parallel to said major surfaces.
A repaired board of lumber wherein an opening which extends between one major surface and an opposite major surface of the board is filled with a conforming plug of material, said opening having a width which both increases and decreases within a first region of said board and also increases and decreases within a second region of said board, said first region of said board being between said one major surface of said board and a planar zone which extends along the board at a location which is between said major surfaces thereof, said second region of said board being between said opposite major surface of said board and said planar zone, said opening being wider in a first direction that extends parallel to said major surfaces than in a second differing direction which also extends parallel to said major surfaces.
Dependencies are inferred from the claim text.