Two surface planer

Details Two surface planer Two surface planer

1999-02-10

2001-01-23

Scherbel, David A. (Department: 3723)

Abrading

Machine

Endless band tool

C144S114100, C144S117100

Reexamination Certificate

active

06176768

ABSTRACT:

BACKGROUND OF THE INVENTION
This invention relates to a two surface planer, particularly to one possible to plane a single surface and two (an upper and a lower) surfaces of wood at the same time.
A planer is a main wood machine for planing a rough surface of wood and smoothing it into a flat smooth surface. The applicant of this invention acquired a Taiwan patent titled “Planer” of No. 240532 dated Feb. 11, 1994, and a Taiwan patent titled “Roller replacing device for planers” of No. 298876 dated Feb. 21, 1996. The planer of the patent of No. 240532 has been widely accepted in its use. However, it only planes single surface of wood at one time, so wood has to be turned over to let the other surface planed.
SUMMARY OF THE INVENTION
Though a small planer for cutting a single surface of wood is simple and light in weight, a two surface planer with a small weight has been growing in demand gradually so as to speed up planing wood to save time.
The main purpose of the invention is to offer a two surface planer provided with a lower base, an adjusting base possible to be raised up and lowered down, and a lower cutter head for cutting a lower surface of wood.
A second purpose of the invention is to offer a two surface planer provided with an upper cutter of an upper cutter head and a lower cutter of a lower cutter head operating at the same time for planing an upper surface and a lower surface of wood synchronously.


REFERENCES:
patent: 1240769 (1917-09-01), Osteman
patent: 2102186 (1937-12-01), Nicholson et al.
patent: 3171454 (1965-03-01), Boice
patent: 4842029 (1989-06-01), De Abreu
patent: 5345983 (1994-09-01), De Abreu

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