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Class Information
Number: 73/862.338
Name: Measuring and testing > Dynamometers > Responsive to torque > During transmission to an external load > By measuring elastic deformation of a torque transmitting member > Using an electrical sensor > Resistance strain gage
Description: Subject matter wherein the determination is made by measuring a change in electrical resistance of a sensing means comprising an electrical conductor or semiconductor that is stressed by the deflection or distortion of the torque transmitting member.

Sub-classes under this class:

Class Number Class Name Patents
73/862.339 With noncontact coupling (e.g., rotary transformer) 25

Patents under this class:
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Patent Number Title Of Patent Date Issued
8677837 Torque-measuring hub, power-measuring system, and cycle wheel equipped with such a hub or system Mar. 25, 2014
8646339 Thread clamping device including internal sensing and reporting Feb. 11, 2014
8631882 Drilling rig with torque measuring top drive Jan. 21, 2014
8591059 Nut having a visual indicator Nov. 26, 2013
8528423 Portable torque measurement and notification system and method of using same Sep. 10, 2013
8505393 Crankset based bicycle power measurement Aug. 13, 2013
8438938 Load cell May. 14, 2013
8436261 Cantilever beam scale May. 7, 2013
8413525 Portable torque measurement and notification system and method of using same Apr. 9, 2013
8393232 Torque detector Mar. 12, 2013
8291775 Torque sensor and robot apparatus Oct. 23, 2012
8250935 Torque measurement device and arrangement composed of a torque measurement device and a drive shaft Aug. 28, 2012
8234937 Vertical axis adjustable platform and torque sensor Aug. 7, 2012
8181539 Pressure isolated strain gauge torque sensor May. 22, 2012
8167538 Torque monitoring apparatus May. 1, 2012
8161828 Load cell for monitoring torsion and having over load protection Apr. 24, 2012
8146443 Rotating body dynamic quantity measuring device and system Apr. 3, 2012
8113066 Chuck-integrated force-measuring system Feb. 14, 2012
8065926 Crankset based bicycle power measurement Nov. 29, 2011
8015886 Torque measurement within a powertrain Sep. 13, 2011
7975561 Chain ring power sensor for a bicycle Jul. 12, 2011
7886620 Method and apparatus for measuring force particularly torque Feb. 15, 2011
7836782 Motor pump torque transducer Nov. 23, 2010
7806006 Bicycle torque measuring system Oct. 5, 2010
7779704 Anti-vibration torque sensing and control device for tools Aug. 24, 2010
7770471 Torque measurement within a powertrain Aug. 10, 2010
7721610 Rotating body dynamic quantity measuring device and system May. 25, 2010
7665373 Torque measuring device with redundant torque transmission paths and fail-safe mechanism Feb. 23, 2010
7395724 Torque sensor packaging systems and methods Jul. 8, 2008
7155985 Torque sensor for vehicle steering system Jan. 2, 2007
7032465 Rotational angle detecting device for a wave gear device Apr. 25, 2006
6962088 Torque detection device for wave gearing Nov. 8, 2005
6840118 Wave gear device torque detection method Jan. 11, 2005
6826970 Method and apparatus for detecting bearing failure Dec. 7, 2004
6807871 Torque detector Oct. 26, 2004
6799481 Torsion module of a torque detection device Oct. 5, 2004
6688185 System and method for microstrain measurement Feb. 10, 2004
6644135 Torque sensor for a bicycle bottom bracket assembly Nov. 11, 2003
6595074 Torque detecting device and electromotive power steering apparatus mounting the torque detecting device thereon Jul. 22, 2003
6532833 Torque measuring piezoelectric device and method Mar. 18, 2003
5907106 Method and apparatus for measuring strain and load on rotating shafts May. 25, 1999
5874682 Torque measuring device particularly for a multishaft extruder Feb. 23, 1999
5837909 Telemetry based shaft torque measurement system for hollow shafts Nov. 17, 1998
5798641 Torque magnetometer utilizing integrated piezoresistive levers Aug. 25, 1998
5753828 Shaft torque measuring system May. 19, 1998
5705757 Apparatus and method for measuring torque and power Jan. 6, 1998
5672834 Torgue indicating device Sep. 30, 1997
5600239 Strain sensing system including a magnetostrictive material having a piezomagnetic property selected for maximizing electrical impedance to current applied to a predetermined skin depth Feb. 4, 1997
5585572 Deformation measuring device for measuring the torque of a cylindrical shaft Dec. 17, 1996
5559408 Apparatus for controlling a motor using piezoelectric resistance Sep. 24, 1996

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