Board repair for correcting defects in lumber or the like

Details Board repair for correcting defects in lumber or the like Board repair for correcting defects in lumber or the like

1989-07-24

1990-01-23

Bray, W. Donald

Static structures (e.g., buildings)

With means for split-prevention or damaged part repair

2940213, 144 2M, 144332, E02D 3700, E04G 2300, B27G 100

Patent

active

048949710

ABSTRACT:
Boards of lumber or the like which exhibit defects such as knots or knotholes are repaired by cutting a bore through the board at the site of the defect and by filling the bore with a plug of conforming shape. The width of the bore changes at a first location along its axis and undergoes a reverse change at another location in order to interlock the plug with the board. The plug may be formed by filling the bore with hardenable mastic or by fitting conforming pieces of wood or the like into opposite ends of the bore, the pieces being abutted and secured together by adhesive. The interlocking configuration of the bore and plug assures that the plug cannot be ejected from the board.

REFERENCES:
patent: 276499 (1883-04-01), Story
patent: 1976722 (1934-10-01), Goss et al.
patent: 2217311 (1940-10-01), Goss
patent: 2263536 (1941-11-01), Dike
patent: 2536665 (1951-01-01), Skoog
patent: 3487530 (1970-01-01), Ely
patent: 3999436 (1975-06-01), Elliott
patent: 4674255 (1987-06-01), Derome

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