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:
Jan. 03, 1989
Filed:
Feb. 12, 1985
Applicant:
Inventor:
Kikuo Kaga, Tokyo, JP;
Assignees:
Sumitomo Corporation, Osaka, JP;
Sobu Ready Mix Concrete Co., Ltd., Sagamihara, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B28C / ;
U.S. Cl.
CPC ...
366-8 ; 366 14 ; 106314 ;
Abstract
A fine aggregate is stored in a high storage silo and its surface water content is so controlled that its variation may be kept within .+-.1% by weight. The fine aggregate, cement and primary water containing an air entraining agent are mixed in an upper mixer (primary mixing) to prepare mortar. The mortar, a coarse aggregate and secondary water containing a water reducing agent are mixed in a lower mixer (secondary mixing) to produce mixed concrete.
Kaga, Kikuo. (1989). Method of producing concrete (U.S. Patent No. 4795263). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4795263
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile