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:
Aug. 03, 1976
Filed:
Apr. 18, 1974
Applicant:
Inventors:
Tsuyoshi Yano, Tokyo, JA;
Takao Take, Mitaka, JA;
Kentaro Nakahara, Tokyo, JA;
Tetsuro Sasano, Chiba, JA;
Assignee:
Onoda Cement Company, Ltd., , JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B28B / ;
U.S. Cl.
CPC ...
264117 ; 106 99 ; 264121 ; 264122 ; 264175 ; 264333 ;
Abstract
This invention relates to a process for continuously producing a board of cement-like material reinforced by fibrous material, which comprises (A) preparing granules of cement-like material by adding water to powdery cement-like material; (B) preparing a granular mixture of the cement-like material and fibrous material by mixing the above prepared granules of cement-like material with short lengths of fibrous material dispersed in air; and (C) forming said granular mixture into a board under compression, optionally with the addition of water.