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. 27, 1990
Filed:
Aug. 18, 1987
Applicant:
Inventors:
James B Goddard, Powell, OH (US);
Leon H Zimmerman, Nashville, TN (US);
Larry L Martin, Hamilton, OH (US);
Assignee:
Advanced Drainage Systems, Inc., Columbus, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02B / ;
U.S. Cl.
CPC ...
405 45 ; 138121 ; 405 49 ; 404-2 ;
Abstract
A hydraulic structure is provided in the form of a flexible, flat, corrugated plastic tube having a relatively oblongated cross-section, with apertures associated with the grooves of the corrugation. The tube is enclosed in a geotextile sheath. The two relatively flat sides or panels of the tube are separated from each other by a plurality of pairs of cuspations, which project inwardly from the panel surface. Cuspations from the opposing panels are secured to one another thereby providing increased structural integrity.