Invention Grant
- Patent Title: Multi-pinion gear digital beam torque wrench
- Patent Title (中): 多小齿轮数字式扭矩扳手
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Application No.: US13290675Application Date: 2011-11-07
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Publication No.: US08166853B2Publication Date: 2012-05-01
- Inventor: Michael D. Rainone , Daniel Baxter , Thao D. Hovanky
- Applicant: Michael D. Rainone , Daniel Baxter , Thao D. Hovanky
- Applicant Address: US IL Chicago
- Assignee: Brown Line Metal Works, LLC
- Current Assignee: Brown Line Metal Works, LLC
- Current Assignee Address: US IL Chicago
- Agency: Marshall, Gerstein & Borun LLP
- Main IPC: B25B23/14
- IPC: B25B23/14 ; B25B23/144

Abstract:
A digital torque wrench includes a position sensor assembly which measures the movement of a load beam with respect to an indicator beam to determine the torque being applied to a working element by the torque wrench. The position sensor assembly includes a first position sensor portion having multiple rotatable pinion gears coupled to a potentiometer, and includes a second position sensor portion having a rack gear that engages one of the pinion gears of the first position sensor portion. The first and second position sensor portions are attached to different ones of the load beam and the indicator beam so that at least one of the pinion gears rotates along the rack gear in response to force (torque) being applied through the load beam to the working element.
Public/Granted literature
- US20120048072A1 MULTI-PINION GEAR DIGITAL BEAM TORQUE WRENCH Public/Granted day:2012-03-01
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