Patent ID: 11951599
Assignee: MUELLER INTERNATIONAL, LLC
Field: Machine tools (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 16:
17. A method of extracting a pipe coupon from a pipe, the method comprising:
inserting a tool head of a pipe coupon extraction tool into a bore cut into the pipe coupon, the tool head comprising a rod defining a first end and a second end;
inserting at least a portion of each of the rod and a spring bar of the tool head into the bore of the pipe coupon without the spring bar itself flexing;
engaging a portion of the spring bar with an inner surface of the pipe coupon, the spring bar configured to stop against and not pass through the bore of the pipe coupon in an engaged position;
manipulating a position of the tool head with a tool extension secured to the tool head, the tool extension defining a tool end and a handle end, the tool extension further comprising a valve configured to selectively place an interior cavity of the tool head in fluid communication with an inlet defined in the handle end of the tool extension; and
pulling the pipe coupon away from the pipe with the tool head.