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:
May. 30, 1989
Filed:
Nov. 23, 1987
Applicant:
Inventors:
Assignee:
Soletanche, Societe Anonyme Dite, Nanterre, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02B / ;
U.S. Cl.
CPC ...
405109 ; 405116 ;
Abstract
A dam formed of roll-compacted concrete having an upstream side and a downstream side is provided with an impermeable membrane curtain. The curtain includes a vertical planar wall portion extending for the full depth of the dam and transversely for the full width of the dam. A series of vertical ribs are connected to and spaced transversely along the curtain. The ribs project toward the upstream side of the dam and extend for the full depth of the dam.