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:
Feb. 13, 2018
Filed:
Aug. 19, 2015
Applicants:
Greg L. Robbins, Pasco, WA (US);
Wayne Peterson, Camas, WA (US);
William L. Zepp, Sunbright, TN (US);
Inventors:
Greg L. Robbins, Pasco, WA (US);
Wayne Peterson, Camas, WA (US);
William L. Zepp, Sunbright, TN (US);
Assignee:
CONTECH ENGINEERED SOLUTIONS LLC, West Chester, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 9/06 (2006.01); F16L 11/16 (2006.01); F16L 9/16 (2006.01); F16L 9/00 (2006.01);
U.S. Cl.
CPC ...
F16L 9/165 (2013.01); F16L 9/006 (2013.01); F16L 9/06 (2013.01);
Abstract
A corrugated metal vent pipe includes a helically corrugated pipe structure formed by helical winding of a corrugated metal strip, wherein the helically corrugated pipe structure has a diameter of between 15 inches and 36 inches and a plurality of vent openings distributed thereon. A first pipe end treatment is located on a first end of the helically corrugated pipe structure, and a second pipe end treatment is located on a second end of the helically corrugated pipe structure.