Torque limiting wrench for plastic and other fittings
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United States of America Patent
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Jul 4, 2017
Issued Date -
N/A
app pub date -
Sep 16, 2014
filing date -
Sep 16, 2014
priority date (Note) -
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Abstract
A torque limiting wrench for tightening nuts on a fitting, and a jaw structure for the wrench. An exemplary embodiment of the wrench includes a handle structure, the jaw structure pivotably mounted to the handle for movement between a tightening position and a fully tightened position. A mechanism applies a force to hold the jaw structure in the tightening position, and allows the jaw to pivot to the fully tightened position when a pre-set torque limit is exceed. The jaw structure including a plurality of spaced teeth supported on a curved jaw arm and having a circumferential extent of less than one half the entire circumference of the nut to be tightened, so that the jaw structure can be engaged to the nut without requiring an axial movement from a first end of the nut toward a second end of the nut.
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