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. 09, 1994
Filed:
Jun. 03, 1992
Applicant:
Inventor:
James M Nichols, Old Saybrook, CT (US);
Assignee:
Infiltrator Systems, Inc., Old Saybrook, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02B / ;
U.S. Cl.
CPC ...
405 46 ; 405 43 ; 405 49 ; 405 50 ;
Abstract
A conduit for dispersing or gathering liquids in the earth has an arch shape cross section and alternating peak and valley corrugations along its length, with cantilever legs extending from one end to interact with the mating portion of a like conduit. The legs, along with a shiplap joint having flange discontinuities for manufacturability, provide a superior rigid joint when the conduits are mated and buried beneath the earth and subjected to vertical loads.