Matches 1 - 50 out of 259 1 2 3 4 5 6 >


Match Document Document Title
8159111 Driving device and protection method thereof  
A driving device includes a motor, a clutch gear, a first rotating portion, a second rotating portion, a piezoelectric assembly, and a controlling unit. The motor includes a rotating shaft. The...
8091438 Torsion tool  
A torsion tool includes a body having an operating head formed thereon for driving a workpiece and a power set disposed therein. A control assembly is installed into the body and includes a seat...
8056426 Method and device for controlling a hydraulically operated power wrench  
In a method for controlling a hydraulic power wrench with a pivotable lever pivoted by a piston-cylinder unit and a ratchet arrangement for stepwise rotation of a ratchet bushing by advancing and...
8011254 Apparatus for and method of measuring motion characteristics of head gimbal assembly  
An apparatus correctly measures motion characteristics a head gimbal assembly exhibits when turned in a radial direction of a hard disk. The apparatus includes an assembly support to fixedly...
8006573 Systems and methods for preloading a bearing and aligning a lock nut  
An apparatus for use in providing a load on a bearing mounted to a shaft includes a setting gage configured to be received on a shaft and configured to engage a nut on the shaft. The gage includes...
7992455 Tightening torque measuring unit  
A tightening torque measuring unit capable of reducing errors with respect to either a clockwise or counterclockwise direction as soon as possible is provided. A tightening torque measuring unit...
7987919 Discontinuous tightening wrench comprising means for measuring dynamic events caused by this tightening on the casing of the wrench  
The invention relates to a discontinuous clamping wrench, of the type comprising a motor and a pulse clutch integrated in a casing, characterised in that it comprises measurement means of dynamic...
7966888 Screw fastener  
A screw fastener includes a first screwdriver including a first bit configured to fasten a first screw by engaging with a recess of the first screw, and a first motor configured to rotate the first...
7958611 Method for quality checking a screw joint tightening process performed by a torque impulse wrench  
A number of pre-production calibration tightenings are performed at a screw joint identical to a screw joint used in production and using the same impulse wrench as to be used in production...
7958944 Discontinuous drive tool assembly and method for detecting the rotational angle thereof  
A discontinuous drive power tool assembly for generating rotational torque includes a spindle having a first end portion and a second end portion. The first end portion of the spindle is configured...
7941932 Compact ergonomic thread inspection tool  
An ergonomic, self contained hand-held thread inspection tool is power driven, which uses a mechanical clutch as a surrogate for torque to initiate automatic reversal and gauge withdrawal in case...
7878076 Torque tool with power amplifier  
A torque tool for measuring and/or cut-off tightening of a torque on a workpiece. The torque tool is provided within a housing with a handle. The torque to be measured is transmitted with a rod. A...
7841245 Electronic torque wrench  
An electronic torque wrench includes a wrench member mounted to a wrench handle for receiving one or more strain gages, and a digital display pivotally attached to the wrench handle for allowing...
7823465 Bolt fastening method and apparatus  
A bolt is fastened up to a predetermined snug torque Ts and then the bolt is further fastened by a specified angle θt from a bolt angle corresponding to the snug torque Ts. Herein, in order to ...
7743673 Method for the angle-controlled turning of a part  
A power wrench (10) for turning a screw is supplied by a hydraulic unit (25) that contains a positive displacement pump (26) and supplies a defined rate of flow. The pressure in a hydraulic...
7726412 Tightening tool and tightening tool management system  
A tightening tool for tightening a fastener is disclosed which comprises a motor and a main shaft that engages with the fastener. A clutch is disposed between the motor and the main shaft so that...
7702493 Method for quality assurance of screw joint tightening  
A method for quality assurance of screw joint tightening results when tightening a screw joint to a needed pretension condition (FN) by means of a torque delivering power tool, wherein one or more...
7661341 Wrench with electronic torque display unit  
A wrench with electronic torque display unit includes a torque adjustment mechanism which includes a sleeve, two gears, a rod and a movable tube, and a locking mechanism which includes a...
7603918 Apparatus and method for measuring torque and power  
A torque measuring apparatus having a pressure sensor attached to a journal of a U-joint that interconnects members of a drive shaft to sense pressure during rotational operation of the drive shaft...
7562589 Display device for an electronic torque wrench  
An electronic torque wrench for engaging a workpiece, the electronic torque wrench including a wrench body and a wrench head disposed on the wrench body, the wrench head being configured to engage...
7556103 Tightening tool and tightening tool management system  
A fastening tool with a clutch for shutting off transmission of torque, capable of self-diagnosing fastening torque of a screw or the like at low cost without using expensive elements such as a...
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...
7506552 Micro torque and micro stiffness measurement device  
In a method and apparatus for testing a head-gimbal assembly (HGA), a HGA is placed in contact with force transducers mounted on a rotational stage. The force transducers are adjusted to position...
7506553 Methods, devices and systems for adaptively driving screws using a screw driving tool  
A method of driving screws into a workpiece using an automatic screw driving tool having first and second components, the first component including a screw bit. The method may include steps of...
7500418 Torque setting lug nut wrench  
A torque setting lug nut wrench is provided. The torque setting lug nut wrench has a socket dimensioned to fit onto a lug nut of a motor vehicle wheel, a first section extending collinearly from...
7484427 Adjustable torque thread gauge assembly and method of calibration thereof  
The apparatus of the present invention comprises a tool having a threaded member which is characterized by a cylindrical shaft or spindle with a surrounding body or handle. The shaft and body are...
7481122 Apparatus for measuring torque  
An apparatus is provided for accurately measuring the capping head torque exerted by bottle capping machines on screw-type plastic or metal caps when such caps are applied to bottles.
7481139 Twisting spanner with auto positioning assembly  
A twisting spanner with an auto positioning assembly comprises a push post; a hollow cylinder; and a periphery of the supporting seat having a cover; and a spring; one end of the spring having a...
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...
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...
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...
7458282 Screwdriver comprising a slider having an attached screw bit and a position detector for position feedback  
A screwdriver is disclosed comprising a base, a carriage moveably coupled to the base, an actuator operable to move the carriage relative to the base, and a slider comprising an attached screw bit,...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
7182006 Torque-controlling wrench  
A torque-controlling wrench includes a handle, a socket-driving unit installed on the handle and a torque-controlling device. The torque-controlling device includes a rod installed in the handle...
7127955 Torque limiting handle  
A torque limiting tool including an inner handle having a tool coupling portion, a biasing assembly aperture, and at least one radially oriented slot. At least one interface member is located in...
7095198 Speed sensor for a power sensor module  
A power sensor module suitable for automotive and other high volume applications combines speed sensing and torque sensing operations into a single unit. A magnetic speed sensor is utilized for...
7089834 Torque wrench with torque range indicator and system and method employing the same  
A torque wrench is disclosed having torque range indicators. The torque wrench includes a handle, a torquing tool, a mounting bar and a programmable interface module. At least one torque sensor is...
7082866 Ratcheting torque-angle wrench and method  
A torque-angle wrench has a torque preset alert circuit which provides a first signal when a predetermined torque level is reached, an angle sensing circuitry providing a second signal...
7082865 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...
Matches 1 - 50 out of 259 1 2 3 4 5 6 >