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:
Jul. 23, 2019
Filed:
May. 06, 2016
Applicant:
Northwest Pipe Company, Vancouver, WA (US);
Inventors:
Assignee:
Northwest Pipe Company, Vancouver, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 21/03 (2006.01); F16L 21/04 (2006.01); F16J 15/02 (2006.01);
U.S. Cl.
CPC ...
F16L 21/03 (2013.01); F16J 15/025 (2013.01); F16L 21/04 (2013.01); Y10S 285/91 (2013.01);
Abstract
A pipe gasket is positioned within a pocket in a socket portion of a first end of a first pipe and the end of a spigot pipe is inserted into the socket with the gasket sealing the gap between the pipes. The gasket in one form comprises a blunt rounded nose portion, a central body portion with an insert embedded therein and a rear sealing portion comprising first and second projections, such as fins, that diverge and respectively engage the first pipe and the second pipe.