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:
Dec. 17, 1985
Filed:
Jun. 07, 1982
Applicant:
Inventor:
Yoshitomo Tezuka, Hachioji, JP;
Assignee:
Aida Engineering Ltd., Sagamihara, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
428599 ; 428600 ; 428923 ; 106 99 ;
Abstract
Steel block is directly subjected to cutting to produce steel fibers for reinforcing concrete, which are flat within determined conditions that if length of the steel fiber is L, width is W, thickness is t and flat index is N, and if L is 20 to 40 mm, N=W/t=7 to 9, wherein W=1.5 to 2.5 and t=0.2 to 0.3 mm.