US 11,920,709 B2
Expansion loop for copper piping system
James Reynold Richter, Chicago, IL (US); James D. Clauss, Frankfort, IL (US); Michael Albert Taylor, Mundelein, IL (US); Daniel T Holbach, Palatine, IL (US); and Daniel R Kish, Chicago, IL (US)
Assigned to The Metraflex Company, Chicago, IL (US)
Filed by The Metraflex Company, Chicago, IL (US)
Filed on Jun. 23, 2021, as Appl. No. 17/355,879.
Prior Publication US 2022/0412491 A1, Dec. 29, 2022
Int. Cl. F16L 27/113 (2006.01)
CPC F16L 27/113 (2013.01) 20 Claims
OG exemplary drawing
 
1. An expansion loop for a piping system, the expansion loop comprising:
a first flexible conduit having a first end and a second end;
a second flexible conduit having a first end and a second end;
a first rigid conduit connected between the first ends of the first and second flexible conduits;
a second rigid conduit connected to the second end of the first flexible conduit and including a rigid conversion conduit and a copper conduit, a portion of the second rigid conduit comprising stainless steel, the rigid conversion conduit between the copper conduit and the portion of the second rigid conduit comprising stainless steel; and,
a third rigid conduit connected to the second end of the second flexible conduit and including a rigid conversion conduit and a copper conduit, a portion of the third rigid conduit comprising stainless steel, the rigid conversion conduit between the copper conduit and the portion of the third rigid conduit comprising stainless steel.