Structures and structural members made wholly or partly of wood

Details Structures and structural members made wholly or partly of wood Structures and structural members made wholly or partly of wood

1977-09-28

1979-11-13

Kaplan, Morris

Coating processes

Vacuum utilized prior to or during coating

Organic base

427346, 427440, B05D 300, B05D 706

Patent

active

041744128

ABSTRACT:
A wooden part of a structure or structural member, e.g. a telegraph pole, that is exposed to the atmosphere is impregnated with wood preservative by a vacuum impregnation process. The exposed wooden part of the pole is surrounded by a closely fitting, fluid-impermeable covering, e.g. a polythene shroud, and boundary edges of the covering are sealed to form a substantially fluid-tight enclosure. Air and any other fluid is evacuated from voids in the said wooden part of the pole and from within the fluid-tight enclosure and wood preservative in a flowable state is allowed to enter the enclosure and the voids in said wooden part of the pole until said wooden part is fully impregnated with wood preservative.

REFERENCES:
patent: 2875020 (1959-03-01), Ring
patent: 3467546 (1969-09-01), Page
patent: 3595182 (1971-07-01), Clapp
patent: 3779797 (1973-12-01), Makinen
patent: 3834329 (1975-09-01), Suggitt
patent: 3987219 (1976-10-01), Arvidsson
patent: 4060953 (1977-12-01), Milne

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