Travel Stop for Expansion Tool to Limit Stress on a Surrounding Tubular
First Claim
1. A travel stop assembly for a subterranean tool for avoiding overstress in an engaged surface, comprising:
- a mandrel further comprising at least one ramp;
at least one movable component assembly selectively forced along said ramp and into contact with the engaged surface;
a portion of said movable component assembly and said ramp selectively engaging after a predetermined relative axial movement therebetween to raise the force required for further axial relative movement to limit the stress placed on the engaged surface.
2 Assignments
0 Petitions
Accused Products
Abstract
An expandable anchor/seal is pushed up a ramp until making contact with the surrounding tubular as or after the anchor/seal contacts the same tubular. The setting sleeve is made from high yield steel that has a weakened leading end to reduce the force required to push the leading end and the anchor/seal and an outer surface treatment at a leading end that engages or penetrates the wall of the surrounding tubular. Preferably a plurality of fingers are formed with axially oriented slots starting from a leading end allowing fingers to flex as they ride up the ramp on the mandrel for setting the anchor/seal and locking that set with the setting sleeve exterior surface configuration that can abut or penetrate the surrounding tubular.
5 Citations
17 Claims
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1. A travel stop assembly for a subterranean tool for avoiding overstress in an engaged surface, comprising:
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a mandrel further comprising at least one ramp; at least one movable component assembly selectively forced along said ramp and into contact with the engaged surface; a portion of said movable component assembly and said ramp selectively engaging after a predetermined relative axial movement therebetween to raise the force required for further axial relative movement to limit the stress placed on the engaged surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification