Repair of edge defects in boards of lumber or the like

Details Repair of edge defects in boards of lumber or the like Repair of edge defects in boards of lumber or the like

1989-11-02

1990-07-17

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

049413058

ABSTRACT:
Boards of lumber or similar material having knotholes or other defects in an edge region are repaired by cutting an opening in the edge region to remove the defect and by filling the opening with a conforming plug formed of hardened mastic or of pieces of solid material which are adhered together. The opening extends inward from the edge of the board and is of greater extent at a location spaced inward from the edge than it is at another location that is closer to the edge. The expanse of the opening preferably increases at a first depth within the board and decreases at a second depth within the board. The configuration of the opening interlocks the conforming plug into the board thereby preventing ejection of the plug.

REFERENCES:
patent: 276499 (1883-01-01), 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: 3889436 (1975-06-01), Elliott
patent: 4674255 (1987-06-01), Derome

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