Patent ID: 9163729
Filing Date: 2015-10-20
Classification: F16J

Abstract:
1. A seal assembly for a subterranean tool having a bullet shaped cross-section for an annular space having an uphole and a downhole end for subterranean use, comprising: opposed fins on at least one end of at least one seal body that are spaced apart to define a groove therebetween; at least one ring having an extending branch positioned in alignment with and initially substantially out of said groove upon assembly to the subterranean tool; and at least one selective travel stop located outside said groove to prevent movement of said extending branch into said groove upon installation of the seal assembly into the subterranean tool, said travel stop being defeated while remaining outside said groove at a subterranean location for the subterranean tool for movement of said extending branch into said groove to deliver a sealing force to said fins at the subterranean location.