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| Number | Title | Issue Date |
| 8096194 | Transducer for measuring preload and torque of a screw and apparatus therewith A measuring apparatus (10) comprises a transducer (11) for measuring preload and torque of a screw. The transducer in turn comprises a first and second sensor element formed by two axially spaced annular zones (16, 17) of a hollow body (15 | 01/17/2012 |
| 8047083 | Trigger assembly including a flexible bend sensor A flexible sensor is disposed in a power tool. The flexible sensor has an electrical resistance that varies based on a radius of curvature of the flexible sensor. A trigger partially disposed in the power tool, operates to apply a bending force at an engagement poin... | 11/01/2011 |
| 7997151 | Automated apparatus and method for determining physical properties of materials Automated apparatus and method to determine physical properties of materials as they are moved relative to each other while in contact are disclosed. Physical properties between materials of interest (e.g., galling resistance, coefficient of friction, and wear rate)... | 08/16/2011 |
| 7958787 | Oilfield tubular torque wrench A method for measuring applied torque of a oilfield tubular torque wrench, the oilfield torque wrench being operable to torque a tubular about an axis of rotation and the oilfield torque wrench including a lower tong including a recess through which the axis of rota... | 06/14/2011 |
| 7950295 | Handheld torque and linear force meter A handheld torque measuring meter adapted to measure the downward thrust and torsional force required to apply or remove a screw type closure from the threaded neck or finish of an associated container is disclosed, the handheld meter having a first portion graspabl... | 05/31/2011 |
| 7841244 | Apparatus and method for mobile collection of atmospheric sample for chemical analysis The present invention discloses a portable sampler for collecting an atmospheric sample. In one implementation, the portable sampler includes a portable housing with an interior portion; a sample inlet communicating between an area outside the housing and the interi... | 11/30/2010 |
| 7832285 | Electronic torque meter The invention provides an electronic torque meter for measuring torque of a wrench. The torque meter includes a housing in which an operation shaft and a flexible beam are disposed. When the operation shaft is rotated, the flexible beam is flexed. A measuring elemen... | 11/16/2010 |
| 7819025 | Electronic torque wrench and method for torquing fasteners An electronic torque wrench having a flexible head provides accurate torque measurements irrespective of the angular position of the head relative to a handle on which the force is applied. The head includes first and second portions connected by at least three pivo... | 10/26/2010 |
| 7565844 | Torque-angle instrument An electronic torque-angle instrument including a generally tubular body having a gripping section and a pivoting head for engaging a workpiece, such as a nut or bolt, and a housing associated with the body and containing electronics, including a microprocessor, whi... | 07/28/2009 |
| 7516676 | Torque limiting and ratcheting mechanism having an internal cam A torque limiting and ratcheting driver having a housing and a torque limiting assembly located within the housing. The torque limiting assembly includes a cam member, a plunger, and a roller supported by the plunger that interacts with the cam member. The ratchetin... | 04/14/2009 |
| 7493830 | Mechanical torque wrench with an electronic sensor and display device A mechanical torque wrench including a wrench body defining an elongated interior compartment and a wrench head including a bar extending therefrom being pivotally secured to a first end of the wrench body. A hand grip located on a second end of the wrench body, the... | 02/24/2009 |
| 7478566 | Electrical torque-indicating wrench An electrical torque-indicating wrench of the present invention, capable of providing accurate measurements, comprising: a wrench body having a head to engage and turn a workpiece, and a stem having two supporting portions protruding from its side surface or the cav... | 01/20/2009 |
| 7475605 | Electronic torque wrench An electronic torque wrench includes a wrench body and a torsion meter. The wrench body includes a head portion, and a neck portion connected to the head portion. The torsion meter includes a strain sensor provided on the neck portion, and a processing unit connecte... | 01/13/2009 |
| 7469602 | Electronic torque wrench with a rotatable indexable display device A torque wrench for engaging a workpiece includes a wrench body having a first end and a second end. A wrench head is disposed on the first end of the wrench body and is configured to engage the workpiece. A display device is carried by the wrench body and includes ... | 12/30/2008 |
| 7448284 | Spanner with strain alarm function A spanner with a strain alarm function comprises a spanner body having at least one driving head at one end thereof; a strain gauge installed at the spanner body; a display installed in the spanner body electrically connected to the strain gauge; an alarm unit insta... | 11/11/2008 |
| 7426876 | Machine tool A machine tool in which a tool holder having a tool is attached to a main spindle and the main spindle is rotated to conduct machining on a workpiece, comprises: a displacement sensor, the impedance of which is changed according to a distance from the displacement s... | 09/23/2008 |
| 7415897 | Electronic torque wrench An electronic torque wrench includes a head portion, a handle portion connected to the head portion and having a receiving space, a strain sensor unit disposed in the head portion, and an indicator unit disposed in the receiving space and having a moving unit. The h... | 08/26/2008 |
| 7395723 | Torque applying and measuring accessory for use with capped containers An accessory for coupling a torque measuring device to a container cap, especially a smooth sided closure. The accessory includes two clamp elements movably coupled together by a threaded rod so the clamps can be forced into frictional engagement with a cap. A mount... | 07/08/2008 |
| 7392712 | Electronic torsional tool An electronic torsional tool includes a main body, and a strain gauge mounted in the main body. The main body is provided with an opening to enhance flexibility of the main body and to increase deformation of the strain gauge. The opening is extended through the han... | 07/01/2008 |
| 7392711 | Insertable strain gauge spanner An insertable strain gauge spanner which comprises a spanner body having a rod body and a driving head insertable into the rod body; the rod body having a handle and an inserting opening at one end thereof; the inserting opening can be received the driving head; the... | 07/01/2008 |
| 7389700 | Variable torque-limiting driver An adjustable, torque-limiting driver for a tool having a radially extending handle that houses a cam member and a pair of plungers. The plungers are biased against the housing and provide variable resistance for the cam member. The arrangement of the cam member and... | 06/24/2008 |
| 7380472 | Hand tool with torque measuring device A hand tool includes a handle and a function head is connected to an end of the handle. A first recess and a second recess are respectively defined in two opposite sides of the handle, and a strain transducer is engaged with the first recess. A display member and a ... | 06/03/2008 |
| 7371955 | Drum tuning key A drum tuning key comprises a handle portion, a barrel portion defining an axis connected to the handle portion, the barrel portion having internal walls defining a cavity extending inwardly along the axis from an end of the barrel portion, the cavity being square i... | 05/13/2008 |
| 7370539 | Electronic torque wrench with a rotatable indexable display device An electronic torque wrench for engaging a workpiece includes a wrench body having a first end and a second end. A wrench head is disposed on the first end of the wrench body and is configured to engage the workpiece. A grip handle is disposed on the second end of t... | 05/13/2008 |
| 7367250 | Digital beam torque wrench A digital beam-type torque wrench has a main beam and a stationary beam having a distal end thereof fixedly attached at or near a distal end of the main beam. A sensing assembly is disposed generally at a proximal end of the main beam and includes a displacement sen... | 05/06/2008 |
| 7366057 | Converter control with LC filtering An arrangement for signal processing in ultrasonic transducers in flow meters has an ultrasonic transducer acted upon by a drive signal with the ultrasonic transducer being connected to a resonant circuit matched to the frequency of the drive signal. The resonant ci... | 04/29/2008 |
| 7343824 | Variable torque-limiting driver An adjustable, torque-limiting driver for a tool having a radially extending handle that houses a cam member and a pair of plungers. The plungers are biased against the housing and provide variable resistance for the cam member. The arrangement of the cam member and... | 03/18/2008 |
| 7334648 | Rotary impact power tool A impact power tool includes a motor rotating a drive shaft, an output shaft holding a tool bit, and a hammer coupled to the drive shaft. The hammer is rotatable together with the drive shaft and is engageable with an anvil fixed to the output shaft so as to give a ... | 02/26/2008 |
| 7331246 | Mechanical torque wrench with an electronic sensor and display device A mechanical torque wrench including a wrench body defining an elongated interior compartment and a wrench head including a bar extending therefrom being pivotally secured to a first end of the wrench body. A hand grip located on a second end of the wrench body and ... | 02/19/2008 |
| 7320254 | Hand-held torque measuring device An ergonomic wedge shaped torque tester with multiple push buttons to control the use and recording functions. The top of the device has a single on/off button, a display screen to display the results of the test, two push buttons for scrolling through the various s... | 01/22/2008 |
| 7313974 | Support for electrical/electronic structure and/or electrical power supply structure for a hand dynamometer tool, in particular for a torque wrench operating by breaking mechanical equilibrium A support is for supporting electrical and/or electronic structure and/or electrical power supply structure for a hand dynamometer tool, in particular for a torque wrench operating by breaking mechanical equilibrium. A body of a substantially cylindrical shape that ... | 01/01/2008 |
| 7303495 | Continuously variable transmission case cover A case cover for a continuously variable transmission includes a wall having a plurality of fastening elements thereon and at which a sheave assembly is rotatably mountable. The wall forms at least a portion of a cavity for containing at least a portion of the sheav... | 12/04/2007 |
| 7287439 | Apparatus for measuring torque of a torque tool by using an indirect structure The invention provides an apparatus for measuring torque of a torque tool by using an indirect structure arranged on one side of the torque tool, in which the apparatus comprises a microstructure part connected with a side surface of the torque tool. The microstruct... | 10/30/2007 |
| 7284451 | Dynamometer tool, in particular a torque wrench, and a method of detecting a break in mechanical equilibrium during tightening to torque A means for detecting a break in mechanical equilibrium comprised of a measurement means that delivers a signal corresponding to a measurement of a torque applied to a fastener element, an electronic processing means for electronically processing a signal, and a com... | 10/23/2007 |
| 7275450 | Tightening torque measuring unit and torque indicating tightening device A tightening torque measuring unit (4) has an inner shaft (31) connectable to a first output shaft (12) of a tightening device main body (1) and an outer shaft (32) connectable to a second output shaft (13) of the body. The ... | 10/02/2007 |
| 7263902 | Replaceable electronic spanner A replaceable electronic spanner comprises a spanner body; at least one electronic device being installed to the spanner body; each electronic device being installed with a display; at least one end of the spanner body being formed with an inserting opening; one sid... | 09/04/2007 |
| 7252013 | Brazed joint torque test apparatus and methods A method and device for testing a substantially cylindrical tool having an axis is performed by imparting a testing torque to the cylindrical tool. The tool is clamped in a vise. The tool has a driven end including a shank and a working end in opposed relation along... | 08/07/2007 |
| 7249526 | Torque detection device for power tools A torque detection device on a power tool includes at least one resistive strain gauge connected to an outer periphery of the shaft which is rotatably received in the barrel of the tool and driven by a motor. At least one conductive collar is mounted to the shaft an... | 07/31/2007 |
| 7234378 | Digital torque wrench A digital torque wrench is disclosed having a transducer beam with a reduced thickness web therein. At least one strain gauge sensor is mounted to the internal web to measure the shearing stress within the web as the wrench is rotated. By using such a reduced thickn... | 06/26/2007 |
| 7222544 | Electronic torque-tool tester An electronic torque-tool tester (10) designed to verify that various mechanical, electrical and pneumatic torque tools such as a torque wrench, are correctly calibrated. The tester (10) includes a housing (50) that is bordered by a horizontal m... | 05/29/2007 |
