Patent ID: 11965397
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 6:
7. A downhole tool comprising:
a tool body; and
an operating sleeve detachably connected and movable in the tool body, the operating sleeve comprising:
an operating sleeve body having an upper end and a lower end;
a plug seat anchor comprising a helical thread on the inner surface of the operating sleeve body, the plug seat anchor defining an anchor diameter that comprises the minor diameter of the helical thread, wherein the helical thread grips the outer surface of the plug seat; and
a plug seat inserted in an interference fit into the plug seat anchor of the operating sleeve body, the plug seat having a smooth, threadless outer surface defining an outer diameter that is greater than the anchor diameter, wherein the plug seat anchor grippingly engages the smooth, threadless outer surface of the plug seat to reduce rotation between the operating sleeve body and the plug seat when a rotational force is applied to the plug seat to drill the plug seat out of the operating sleeve body, wherein the operating sleeve body defines a first cylindrical portion with a first inner diameter and a second cylindrical portion with a second inner diameter and defines a shoulder that tapers radially inwardly from the first to the second cylindrical portions, and wherein the rotational force urges the plug seat into the tapered shoulder.