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. 16, 1977
Filed:
Nov. 22, 1976
Applicant:
Inventor:
Eduard H de Munck, The Hague, NL;
Assignee:
Vredestein N.V., The Hague, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B / ; E04F / ; E01C / ;
U.S. Cl.
CPC ...
52396 ; 404 56 ; 404 65 ; 404 74 ;
Abstract
A waterstop of elastic deformable rubbery material used in concrete structures with a substantially flat middle portion and enlarged side wing anchor sections with elastic or metal anchor strips and sponge material attached to the outer edge of the strips and injection tubes from outside the concrete to the sponge material. The method of installing a waterstop in concrete and after setting injecting a fluid curable or settable material to admit the fluid to the concrete matrix in the region of the sealing extensions.