Wood-cutting method and tool for implementation thereof

Details Wood-cutting method and tool for implementation thereof Wood-cutting method and tool for implementation thereof

1993-06-14

1995-07-04

Bray, W. Donald

Woodworking

Process

Mechanical cutting or shaping

83 16, 83171, 836511, 144 2R, 144380, B27M 106, B26D 144

Patent

active

054291631

ABSTRACT:
A wood-cutting method is disclosed using a tool having a cutting part heated by electric current wherein the temperature of the cutting part of the tool, in proximity of the wood, is maintained at a predetermined level. Also disclosed is a wood-cutting tool that has a carrying part and a cutting part in which the cutting part is heated by electric current. The cutting part is blunt and projects beyond the side surfaces of the carrying part. In order that the temperature of the cutting part be maintained at a predetermined level, the tool is provided with a temperature regulator with at least one temperature-sensitive element arranged in thermal communication with the cutting part. The blunt cutting part is formed as a bulbous rigid member selectively coated with an electrically insulative coating that supports a film electric resistance heating element which in turn is covered by an outer protective covering. A heat responsive sensing element, temperature reference and comparator and adjustable electric power control maintain the temperature of the cutting element at a selected level during cutting.

REFERENCES:
patent: 3756111 (1973-09-01), Weidenmiller
patent: 4258763 (1981-03-01), Figueredo et al.
patent: 4436010 (1984-03-01), Valentine
patent: 4453437 (1984-06-01), Ask
patent: 4608893 (1986-09-01), Huhne
patent: 4610653 (1986-09-01), Savich
patent: 4702138 (1987-10-01), Hattori et al.

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