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:
May. 20, 2003
Filed:
Mar. 07, 2002
Applicant:
Inventors:
Michael Webb, Chester Springs, PA (US);
Kevin Struthers, Clayton, NC (US);
Assignee:
Environ Products, Inc., Smithfield, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 4/100 ;
U.S. Cl.
CPC ...
F16L 4/100 ;
Abstract
A pipe coupling assembly for double-wall pipe having an interstice between an inner pipe and an outer pipe, which joins the terminal ends of adjacent sections of the double-wall pipe to a fitting element, as a tee or elbow fitting, as well as to a connector tube bypass assembly. The coupling assembly provides fluid communication between the interstices of the adjacent sections of the double-wall pipe and the connector tube bypass assembly but does not permit fluid from the interstices of the pipes to pass through the pipe fitting.