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.:
Date of Patent:
Oct. 26, 1993
Filed:
Apr. 17, 1992
Katsuji Hasegawa, Ohbu, JP;
Yoshinori Koba, Tokai, JP;
Norio Shibagaki, Ohbu, JP;
Akira Itoh, Ohbu, JP;
Matsunaga Tsuruta, Aichi, JP;
Meinan Machinery Works, Inc., Ohbu, JP;
Abstract
A substantially uncurved and unwaved plywood includes at least one pair of veneers located symmetrically with respect to a middle of a thickness of the plywood and having unstraight grains which coincide with each other. A method for producing a substantially uncurved and unwaved plywood comprises locating at least one pair of veneers with identical unstraight grains in a pair of positions symmetrical with respect to a middle of a thickness of a plywood to be produced, in such a manner than the grains of the veneers coincide with each other. A simple method for continuously preparing pairs of veneers with identical unstraight grains comprises (i) peeling from a cylindrical log with unstraight fibers a continuous sheet of twice a thickness of each one of a pair of veneers to be prepared, (ii) cutting the sheet into a predetermined length to provide a thick veneer, and (iii) slicing the thick veneer at a middle of a thickness thereof to prepare a pair of veneers with equal thicknesses and with identical unstraight grains. Another simple method for continuously preparing pairs of veneers with identical unstraight grains includes slicing the continuous sheet before cutting into the predetermined length. Other methods for continuously preparing pairs of veneers with identical unstraight grains are also disclosed.