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:
Feb. 14, 1984
Filed:
Dec. 11, 1980
Applicant:
Inventors:
Akihiro Yamaguchi, Tokyo, JP;
Masatoshi Ohkura, Tokyo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B / ;
U.S. Cl.
CPC ...
52744 ; 52514 ; 138 30 ; 138 31 ;
Abstract
The pressure to the cracks in the concrete building and the like exerted by a binding material supplied thereinto is buffered by the expansion of a pressure buffering portion located somewhere between the supply pump and the supply pipe and after the supply pump is disconnected, the binding material supplying operation is succeeded by the pressure buffering portion which, having therein reserved the binding material by expansion, forces the binding material out into the cracks by contraction.