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:
Sep. 01, 1998
Filed:
Apr. 09, 1996
Applicant:
Inventor:
R Robert Goughnour, Leesburg, VA (US);
Assignee:
Geotechnics America, Inc., Matthews, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D / ; E02D / ;
U.S. Cl.
CPC ...
405 36 ; 405 52 ; 405258 ;
Abstract
Liquefiable soil is treated for earthquake liquefaction protection prior to erecting a building structure or work. A plurality of substantially vertical prefabricated drains are positioned at spaced intervals in the liquefiable soil and a reservoir is provided and adapted for draining off water which is expelled from the drains during an earthquake. The drains are generally comprised of an elongated plastic core material providing channels for channeling water off or therealong and this core is sometimes or selectively surrounded by a filter fabric as required to provide a composite drain.