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:
Nov. 27, 1990
Filed:
Nov. 27, 1989
Applicant:
Inventors:
Hartmut Fuhr, Pittsburgh, PA (US);
Bernd Koglin, Bergisch Gladbach, DE;
Rolf Rink, Colonge, DE;
Josef Schafer, Leverkusen, DE;
Wolfgang Vogel, Siegburg, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B09B / ;
U.S. Cl.
CPC ...
405129 ; 405 36 ; 405 52 ; 405270 ;
Abstract
In an operating dump, intermediate sealing layers which are provided with a drainage layer are applied for the production of a multibarrier system to prevent the penetration of seepage water, the seepage water which is collected in the drainage layer being removed and fed to a disposal system. Plastic films or sheets overlapping in the form of roofing tiles or laid as webs have proved suitable as an intermediate covering.