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:
Jun. 25, 2002
Filed:
Jan. 27, 2000
Applicant:
Inventors:
David A. Hubbell, Saranac Lake, NY (US);
Alfred W. Owen, Raleigh, NC (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D 5/22 ; E04C 5/08 ; E04C 3/30 ;
U.S. Cl.
CPC ...
E02D 5/22 ; E04C 5/08 ; E04C 3/30 ;
Abstract
A foundation pile, has at least one tensioning tendon which is elongated. A tubular wall forms a hollow conduit located around the at least one tendon so that a space remains between the tensioning tendon and the hollow conduit. A structural tubular element is located around the hollow conduit and composed of a non-metallic material. A tubular layer of a composite material is located around the structural tubular element and connected with the latter. A friction coating applied on an outer surface of the layer of composite material.