US 12,259,079 B2
Sealing plug assemblies, sealing elements, and bleed lances for line stopping a pipe and systems and methods thereof
David Albertson, Skiatook, OK (US); Brian Anderson, Tomball, TX (US); Paul Hatch, Edmond, OK (US); Ray Prater, Kiefer, OK (US); Joaquin Reyes Espinosa, Sand Springs, OK (US); Robert Niksich, Corpus Cristi, TX (US); Timothy Irelan, League City, TX (US); and Brian Gresh, Tulsa, OK (US)
Assigned to WELDFIT LLC, Houston, TX (US)
Filed by WeldFit LLC, Houston, TX (US)
Filed on Jul. 16, 2024, as Appl. No. 18/773,945.
Application 18/773,945 is a continuation of application No. PCT/US2023/080159, filed on Nov. 16, 2023.
Claims priority of provisional application 63/426,607, filed on Nov. 18, 2022.
Prior Publication US 2024/0369170 A1, Nov. 7, 2024
Int. Cl. F16L 55/124 (2006.01)
CPC F16L 55/124 (2013.01) 11 Claims
OG exemplary drawing
 
4. A sealing plug assembly comprising:
a plugging head, a proximal sealing element, a distal sealing element, an isolation plate, and a nose piece,
wherein the proximal sealing element is located closer to the plugging head than the distal sealing element, and wherein proximal sealing element protrudes around an exterior of the sealing plug assembly,
wherein the distal sealing element is located closer to the nose piece than the proximal sealing element, and wherein the distal sealing element protrudes around the exterior of the sealing plug assembly,
wherein the isolation plate is contained in an interior of the sealing plug assembly and located between the proximal sealing element and the distal sealing element, and
wherein the nose piece has a product port located on the exterior of the sealing plug assembly and the product port is connected to the isolation plate by a nose flow pathway,
wherein the proximal sealing element or the distal sealing element, or both, includes a flat face, an elastomeric face, an outer edge having an exterior diameter, and an inner edge having an interior diameter, and
wherein the elastomeric face has a circular groove extending a circular groove depth into the elastomeric face, and
wherein at least one of the inner edge, the outer edge, and the circular groove of the proximal sealing element or the distal sealing element, or both, is coaxial with the exterior of the sealing plug assembly, the plugging head, or both; and
wherein the outer edge has an outer edge axial thickness of from about 1.8 cm to about 10.2 cm, or
wherein the inner edge has an inner edge axial thickness of from about 1.2 cm to about 10.2 cm, or
wherein the exterior diameter is from about 7.6 cm to about 142.3 cm, or
wherein an outer edge of the circular groove is located a radial distance of from about 1.2 cm to about 15.3 cm from the outer edge of the proximal sealing element or the distal sealing element, or both, or
wherein the circular groove depth is from about 0.6 cm to about 3.9 cm.