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:
Sep. 20, 1977
Filed:
Jan. 20, 1976
Applicant:
Inventors:
Yoshikiyo Fukushima, Tokyo, JA;
Shigeru Watanabe, Suita, JA;
Assignees:
Nippon Concrete Industries Co. Ltd., Tokyo, JA;
Nikkai Giken Co., Ltd., Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D / ;
U.S. Cl.
CPC ...
61 56 ; 61 39 ; 52170 ; 52301 ; 52728 ;
Abstract
This invention relates to a concrete pile having a steel plate, of a semi-cylindrical shape,integrally fixed at the outer periphery thereof. The steel plate has a number of connectors protruding beyond the inner surface so as to thrust into concrete. The connectors are formed by performing the incomplete blanking of the steel plate. When the concrete pile is subjected to a concentrated load or a large bending moment, it can be reinforced by means of the steel plate. The operation of attaching a waling to the concrete pile can be also easily performed through means of the steel plate.