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:
Apr. 27, 1976
Filed:
Apr. 12, 1974
Applicant:
Inventor:
Kenneth W Lefever, Waterford, VA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D / ; E02D / ; F16L / ;
U.S. Cl.
CPC ...
61 721 ; 61 43 ; 61 50 ; 52167 ; 52105 ;
Abstract
Where a pipeline is to cross an earthquake fault zone, a trench is dug in the earth substantially wider and deeper than the diameter of the pipeline. The pipeline is installed in the trench in a bed of spherical bodies, which thereafter function during an earthquake to partially absorb compression and shear waves, and to disperse forces acting on the pipeline, whereby the effect of such forces on the pipeline is minimized with the result that rupture does not occur.