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US 11,951,599 B2Granted
Pipe coupon extraction tool
AssigneeMueller International, LLC
InventorsTimothy J. Mitchell, David Latimore Hughes, Jr.
Life of this patent
Estimating the term…
Abstract
A pipe coupon extraction tool includes a rod defining a first end, a second end, and a central axis; and a spring bar defining a first end and a second end, the spring bar rotatably secured to the rod, a surface of the spring bar configured to be angled with respect to the central axis when the pipe coupon extraction tool is engaged with a pipe coupon.
Claims20
A pipe coupon extraction tool comprising:
- a tool head comprising:
- a rod defining a first end, a second end, and a central axis;
- and
- a spring bar defining a first end and a second end, the spring bar rotatably secured to the rod, a surface of the spring bar angled with respect to the central axis when the pipe coupon extraction tool is engaged with a pipe coupon, the spring bar being configured not to flex between the first end and the second end;
- and
- a tool extension secured to the first end of the rod of the tool, the tool extension defining a tool end and a handle end, the tool extension comprising a handle portion proximate to the handle end, the handle portion configured to be grasped by a hand of a user of the pipe coupon extraction tool, 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.
3 more elements
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.
3 more elements
Dependencies are inferred from the claim text.