The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6817394 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 16, 2004

Filed:

May. 16, 2002
Applicant:
Inventors:

Kimiyoshi Kitazawa, Nagano, JP;

Yorikuni Shibuya, Nagano, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B27M 1/02 ;
U.S. Cl.
CPC ...
B27M 1/02 ;
Abstract

A prismatic wood compression molding method capable of easily producing long-sized lumber usable as pillars or like by compression molding. The method is characterized by comparing the steps of: using a plurality of rigid plate-like bodies such as metal plates to compress an outer face of wood throughout length thereof to compression-mold it into prismatic wood which is polygonal, such as rectangular or hexagonal, in cross section; restraining the plate-like bodies by a restraining jig so as to hold flat surfaces of the prismatic wood in a state in which they are compressed by the plate-like bodies; and applying a heat treatment to the prismatic wood held in the compressed state by the plate-like bodies and the jig so as to permanently fix the shape of the prismatic wood.


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Kitazawa, Kimiyoshi. (2004). Prismatic wood compression molding method and compression molding device therefor (U.S. Patent No. 6817394). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6817394

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