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. 17, 2003
Filed:
Jul. 24, 2001
Applicant:
Inventor:
Timothy R. Toliver, Findlay, OH (US);
Assignee:
Hancor, Inc., Findlay, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 1/700 ;
U.S. Cl.
CPC ...
F16L 1/700 ;
Abstract
A pipe structure includes an annular corrugation centered on an axis. The corrugation has a cylindrical liner centered on the axis, two annular sidewalls extending radially outward from axially opposite ends of the liner, and an annular crown extending axially between radially outer ends of the sidewalls. An annular cavity is centered on the axis and is bounded by the liner, the sidewalls and the crown. A structural filler is contained within the cavity.