	US 12,188,602 B1
	Sealing plug assemblies, line stop assemblies, and yokes with fluid pathways for line stopping a pipe and methods for the use 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. 2, 2024, as Appl. No. 18/762,337.
Claims priority of provisional application 63/625,161, filed on Jan. 25, 2024.
Int. Cl. F16L 55/105 (2006.01); F16L 55/18 (2006.01)

CPC F16L 55/105 (2013.01) [F16L 55/18 (2013.01)]

16 Claims

1. A sealing plug assembly comprising:

a yoke, wherein the yoke includes a yoke proximal end and a yoke distal end, wherein the yoke distal end includes a distal yoke face, wherein the distal yoke face includes a plurality of yoke bolt holes positioned around a raised yoke portion,

wherein the raised yoke portion includes a raised yoke face,

wherein the yoke includes a yoke fluid passageway, wherein the yoke fluid passageway connects a yoke distal port to a yoke proximal port, and

wherein the yoke distal port is located on the raised yoke face.

12. A method of stopping a pipe containing a product, comprising:

providing a sealing plug assembly, wherein the sealing plug assembly includes a yoke, a proximal sealing element, a distal sealing element, an isolation plate, and a nose piece, wherein the yoke includes a yoke proximal end and a yoke distal end, wherein the distal end includes a distal yoke face, wherein the distal yoke face includes a plurality of yoke bolt holes positioned around a raised yoke portion, wherein the raised yoke portion includes a raised yoke face, wherein the yoke contains a yoke fluid passageway, wherein the yoke fluid passageway connects a yoke distal port to a yoke proximal port, and wherein the yoke distal port is located on the raised yoke face;

wherein the proximal sealing element is located closer to the yoke than the distal sealing element, and wherein the 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, and 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

stopping the pipe containing the product by sealing an outer edge of the proximal sealing element and an outer edge of the distal sealing element against an interior surface of the pipe.