Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 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 received therein. The seat includes a microcontroller disposed therein ... | 01/10/2012 |
| 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 return strokes, parameters such as nominal torque or pre-load or screw... | 11/15/2011 |
| 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 support the head gimbal assembly on a center axis that corresponds to a rot... | 09/06/2011 |
| 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 an inner portion and an outer portion rotatable relative to each othe... | 08/30/2011 |
| 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 10, installed in a tightening device, includes a torque sensor | 08/09/2011 |
| 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 measuring element electronically detects the actual torque. A measure... | 02/01/2011 |
| 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 the digital display to be pivoted relative to the wrench handle to diff... | 11/30/2010 |
| 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 obtain excess and deficiency of the fastening angle up to the snug torqu... | 11/02/2010 |
| 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 pressure line (28) is measured by a pressure sen... | 06/29/2010 |
| 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 and an analyzer that receives a signal representative of the pressur... | 10/20/2009 |
| 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 the workpiece. A grip handle is disposed on the wrench body opposite ... | 07/21/2009 |
| 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 measuring a relative displacement between the first and second components... | 03/24/2009 |
| 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 operably engaged by means of a series of magnets in the spindle and th... | 02/03/2009 |
| 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. ... | 01/27/2009 |
| 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, wherein the slider is coupled to the base through the carriage and t... | 12/02/2008 |
| 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 |
| 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 |
| 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 |
| 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 |
| 7372228 | Electric power tool with memory capability The invention relates to an electric power tool having a control and/or regulating device for an electric motor. It is provided that the control and/or regulating device (4) is assigned an electronic memory element (5) for at least one operating state ... | 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 |
| 7350438 | Connection rod for internal combustion engine An internal combustion engine connecting rod is designed with bolts having a minimum required strength. A strength safety factor Sfa is calculated based on an axial strength limit load FX of the bolt and the maximum load FB to be born by the bo... | 04/01/2008 |
| 7338286 | Dental implant system An implant comprising two internal anti-rotational features. One anti-rotational feature is adapted to engage a driving tool, while the other anti-rotational feature is adapted to engage an abutment. An implant abutment system is provided with an angled abutment ada... | 03/04/2008 |
| 7322263 | Wrench capable of switching sense of rotation A wrench capable of switching sense of rotation comprises a handle, a head portion formed on one end of the handle and a switch mounted on the head portion of the handle. The head portion further comprises a ratchet wheel, a claw piece and an inverting piece. The sw... | 01/29/2008 |
| 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 |
| 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 |
| 7281438 | Torque measuring apparatus A torque measuring apparatus is described that comprises a chassis, a reversible electrical motor having a motor housing and a rotatable output shaft projecting from one end of said motor housing, motor mounting means mounting said motor housing for rotation relativ... | 10/16/2007 |
| 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 |
| 7243580 | Torque limiting driver with easily disassembled components for sterilization A driver has components that are easily disassembled for cleaning and/or sterilization. Once disassembled, the limited number of components allows for easy reassembly. The driver utilizes a cam that rides on spring fingers for determining the level of producible tor... | 07/17/2007 |
| 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 |
| 7194940 | Electronic torsional tool An enhancing structure of an electronic torsional tool having an electronic strain gauge for measuring a torsional force applied thereon; wherein the electronic torsional tool having a main body comprising: an extending rod mounted in the main body and extended thro... | 03/27/2007 |
| 7182147 | Tool apparatus, system and method of use A system, and a method of using a system, for controlled tool operation. The method includes providing a tool used in a force application such as a such torque application. The tool communicates with a controller which can communicate with the tool, and to a display... | 02/27/2007 |
| 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 and connected to the socket-driving unit, a knob installed on the handl... | 02/27/2007 |
