US 11,774,025 B2
Fitting for connecting a main pipe liner to a branch conduit
George Bontus, St. Albert (CA); Rick Baxter, St. Louis, MO (US); Benjamin Lagosz-Sinclair, Hauppauge, NY (US); George Lohr, Hauppauge, NY (US); David Antanavige, Hauppauge, NY (US); Dennis Semet, Hauppauge, NY (US); and Steven McKeefrey, Hauppauge, NY (US)
Assigned to INA Acquisition Corp., Wilmington, DE (US)
Filed by INA ACQUISTION CORP., Wilmington, DE (US)
Filed on Oct. 30, 2019, as Appl. No. 16/669,058.
Claims priority of provisional application 62/752,866, filed on Oct. 30, 2018.
Prior Publication US 2020/0132234 A1, Apr. 30, 2020
Int. Cl. F16L 41/08 (2006.01); F16L 39/00 (2006.01); F16L 55/11 (2006.01); F16L 15/04 (2006.01)
CPC F16L 41/08 (2013.01) [F16L 39/00 (2013.01); F16L 15/04 (2013.01); F16L 55/1108 (2013.01)] 32 Claims
OG exemplary drawing
 
1. A fitting for connecting a branch conduit to a liner installed in a main pipe, the fitting comprising:
a fitting body having an inner end portion and an outer end portion spaced apart along an axis and defining a passage extending through the fitting body from the inner end portion through the outer end portion, the fitting body being configured to be inserted into the branch conduit to position the fitting at an installed position in which the fitting connects the liner to the branch conduit and the passage provides fluid communication between the interior of the liner and the branch conduit, wherein the fitting body comprises a flange section defining the inner end portion and a shaft section defining the outer end portion;
a fastener connected to the fitting body, wherein the fastener is configured to establish a mechanical connection between the fitting and the branch conduit as the fitting body is inserted into the branch conduit without rotating the fastener a complete revolution about the axis, and wherein the mechanical connection secures the fitting body at the installed position; and
an outer gasket extending around the shaft section at a location spaced apart along the axis from the fastener toward the outer end portion of the fitting body, the outer gasket being configured to form a seal between the shaft section and the branch conduit when the fitting body is at the installed position;
a compressible inner gasket extending around the shaft section and seated against the flange section.