Pipe wrench
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United States of America Patent
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Jun 23, 2020
Grant Date -
Dec 28, 2017
app pub date -
Apr 6, 2017
filing date -
Jun 28, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A pipe wrench for making-up or breaking-out a threaded connection between a first tubular member and a second tubular member includes an upper wrench assembly with a pair of upper jaw assemblies configured to grip the first tubular member and a lower wrench assembly with a pair of lower jaw assemblies configured to grip the second tubular member. The upper and lower wrench assemblies are concentrically constrained, axially overlap, and radially engage with one another. Each of the upper and lower wrench assemblies independently includes a frame with a curved segment containing an arc at an angle of about 160° to about 200°. The upper and lower wrench assemblies are configured to rotate the first tubular member relative to the second tubular member and can have an angle of rotation in a range from about 75° to about 180°.
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