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7533735 |
Digital authentication over acoustic channel
Method and apparatus for controlling access to a secure network, system or application is disclosed. In one embodiment, an apparatus for requesting authentication includes a storage medium that...
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7520339 |
Apparatus for achieving integrated management of distributed user information
An apparatus for managing user information regarding a plurality of users includes a source determining unit configured to receive from a client a request for obtaining first user information and...
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7467669 |
Method for governing the operation of a pneumatic impulse wrench and a power screw joint tightening tool system
A method and a power tool system are provided for performing screw joint tightening using a pneumatic torque impulse power tool that is controlled by a control unit. A torque magnitude and a torque...
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7210541 |
Transducerized rotary tool
Disclosed herein is a variable speed tool useful for use with securing or removing industrial fasteners. The tool also includes a means to torque the fastener to a certain precise torque. The tool...
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7090030 |
Tranducerized torque wrench
Disclosed herein is a variable speed tool useful for use with securing or removing industrial fasteners. The tool also includes a means to torque the fastener to a certain precise torque. The tool...
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7063171 |
Motor-driven rotary tool with internal heating temperature detecting function
An electric motor-driven rotary tool with an elevated temperature detection function, provided by a temperature sensor, connected to a power shut off device, for shutting off power to the tool, in...
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6161629 |
Power wrench
A power screwdriver has a drive unit and an input circuit for inputting screw size, material quality, pitch, and clamping length of a screw. An evaluation circuit is provided for determining a...
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6044918 |
Percussion blow added manually operable drilling tool
A percussion blow added manually operable drilling tool, such as a hammerdrill, has a housing (2) containing an electric motor for rotating a tool bit chuck (9) about its axis, a control device (C)...
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5898598 |
System and apparatus for a torque transducer with data processing capabilities
A circuit (31) for use with a torque transducer (32) is provided. The torque transducer (32) generates a signal in response to an applied torque. A data processor (100) connected to the torque...
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5893420 |
Multi-core cable connector for power wrench
A cable connector for assembly and mounting on a front section of a housing of a power wrench is arranged to connect at least one operation parameter sensor of the power tool to a multi-core cable....
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5289886 |
Automatic screw fastening machine
An automatic screw fastening machine embodied by the invention transmits the rotating force of a motor to a driver bit via a differential planetary mechanism consisting of an input disc, a...
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5285857 |
Nut runner for clamping bolts with predetermined torque and bolt clamping method
In order to prevent a looseness of bolts after main clamping, a nut runner of the present invention comprises a torque sensor for detecting a clamping torque T of a clamping unit, and a torque...
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5186262 |
Powered tool apparatus
An electro-hydraulically operated tool apparatus installs and removes bolts of track shoes for assembling and disassembling endless track assemblies. In the assembly procedure, a wrench of the tool...
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5172774 |
Axially compact torque transducer
A high sensitivity torque transducer capable of installation between the motor and the output reduction gear train in the housing of a rotating machine, which has a limited axial space therefor,...
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4987806 |
Electronic control circuitry for a nutrunner
Generally there is provided a nutrunner appliance for automatically driving a nut having an electrical motor, gearing, and a strain gauge to monitor the applied torque. The control system employs...
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4979408 |
Screw tightening device
A screw tightening device has a DC motor and a bit which is set to a screw. The DC motor is energized by a driving signal and rotates the bit. A torsion spring coupling is connected between the DC...
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4838361 |
Attachment for power tool
An attachment for power driven torque tools for measuring and limiting the torque developed thereby, which comprises a drive shaft and a driven shaft, each supporting a transverse plate at the...
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4544039 |
Torque transducing systems for impact tools and impact tools incorporating such systems
A torque transducing system for an impact tool such as an impact wrench incorporates a housing, bearings in the housing, a rotatable shaft journalled in the bearings, the shaft having a torque...
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4418765 |
Power-driven screwdriver with a torque control
A screw tightening apparatus comprises a motor-driven screwdriver bit supported on a base for tightening a screw with a torque which is detected as a reactive force acting on the base by a torque...
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4365402 |
Method for counting turns when making threaded joints
A method and apparatus are disclosed for making threaded joints, such as pipe joints, within a range of predetermined applied torque and turns values. A pipe or a pipe and a coupling are threaded...
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4281538 |
Transducer for indicating torque
A pneumatic power tool having a torque sensing control system is disclosed which is capable of consistently applying a precise torque to a fastener so that uniform tightening of any number of...
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4273198 |
Motor-driven clamping method and device
A motor-driven clamping method characterized by a two-step control operation, in which when a torque applied to a member to be clamped reaches a first set value smaller than a reference set value,...
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4208775 |
Method and apparatus for making threaded joints
A method and apparatus are provided for making threaded joints, such as pipe joints, within a range of predetermined applied torque and turns values. A pipe or a pipe and a coupling are threaded...
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4199032 |
Apparatus for measuring and controlling a force
An apparatus for measuring and controlling a force such as torque, pull or weight. One example is an apparatus for making up two members having mating threaded connections, such as pipe joints,...
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4176436 |
Method and apparatus for counting turns when making threaded joints
A method and apparatus are disclosed for making threaded joints, such as pipe joints, within a range of predetermined applied torque and turns values. A pipe or a pipe and a coupling are threaded...
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4163311 |
Tightening system for blind fasteners
A tightening and control system is disclosed for automatically tightening a blind fastener assembly to a desired tightened condition in a workpiece, where the assembly is of the type which exhibits...
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4163310 |
Tightening system
A tightening and control system is disclosed for automatically tightening a fastener to a predetermined tightened condition in a workpiece, where the fastener is of the type which exhibits more...
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4158799 |
Screwing tool for printing presses
A control system for a reversible screwing tool for tightening and loosening screws in a printing press or the like which includes a pair of angularly spaced pick-up devices coupled to the shaft of...
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4142591 |
Torque-yield control system
An apparatus for applying torque between one or more pairs of threaded members to effect a desired set condition. The set condition is determined by a control which terminates the application of...
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4106176 |
Method and apparatus for fastener tensioning
A fastener tensioning method and apparatus for obtaining a desired degree of tension in a fastener. The embodiment of this invention described utilizes the slope of the change in torque per change...
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4104780 |
Method and system for tightening joint assembly
The preferred embodiment of the invention disclosed herein relates to a method of and a tightening system for tightening a joint assembly including a fastener system to a yield point of one of the...
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4104779 |
Tightening method and system
A preferred embodiment of the invention disclosed herein relates to a method of and tightening system for tightening a joint assembly including a fastener system to a yield point of one of the...
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4091451 |
Method of and apparatus for making up a threaded connection
A method of and apparatus for making up two members having mating threaded connections, such as pipe joints or bolts, for insuring that a specified number of threads have been engaged and a...
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4081037 |
Control system for a multiple spindle machine
This disclosure deals with a machine for simultaneously tightening a plurality of threaded fasteners. The machine includes a plurality of torque applying units, one for each fastener, which engage...
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4074772 |
Torquing tool control circuit
The control circuit receives a signal from a torque measuring device provided on the tool and determines the proper shut off point for the tool. The circuit controls not only the tool shut off but...
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4066133 |
Power hand tool
To prevent accidents due to high torque of hand tools, such as drills, and the like, which, when the tool bit stalls, may tend to twist the tool handle from the user's hand, a torque measuring...
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4023406 |
Tightening system with torque-time control
The invention disclosed herein relates to a tightening system including a wrench for applying torque to a fastener system. Associated with the wrench is a control system including measuring means...
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4016938 |
Method for fastener tensioning
A fastener tensioning system for use with torque producing power tools, such as, nut runners or the like. The system includes apparatus to rotate the fastener and determine when the fastener has...
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4006784 |
Fluid operated power tool
A pneumatic power tool having a torque sensing control system is disclosd which is capable of consistently applying a precise torque to a fastener so that uniform tightening of any number of...
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3975954 |
Method and apparatus for evaluating torquing operations
To evaluate the quality of a torquing operation wherein a tool engages a workpiece and exerts a rotational driving force on the workpiece until a predetermined maximum torque is attained between...
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3974685 |
Tightening system and method
A tightening system and method and a fastener assembly usable therewith are disclosed in this specification. According to the method a fastener assembly is provided that causes a change in the...
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RE28899 |
Torque control apparatus
A torque-applying apparatus having one or more torque motors each arranged for forcibly threading a first threaded member into tightened association with a corresponding second threaded member. A...
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3939920 |
Tightening method and system
A tightening method and system for practicing same are disclosed herein for tightening a fastener to a desired axial load. According to the method, torque is applied to the fastener until it is...
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3920082 |
Power tool with torque sensing control means
A pneumatic power tool having a torque sensing control system is disclosed which is capable of consistently applying a precise torque to a fastener so that uniform tightening of any number of...
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3858444 |
ANGLE NUT RUNNER WITH INTEGRAL TORQUE TRANSDUCER MEANS OF OBTAINING VALUE OF DELIVERED TORQUE
A nut running tool having a rotary air driven vane motor for transmitting torque to a nut or the like to be tightened, and having reaction torque responsive transducer means integrated with the...
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3710874 |
ELECTRONIC TORQUE MEASUREMENT SYSTEM
A wrenching and torque inspection apparatus including a rotary power wrench having its housing fixed to a support by a resilient member forming part of an electronic torque measuring system for...
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3572447 |
TORQUE MEASURING SYSTEM FOR IMPACT WRENCH
An impact wrench including a resilient member disposed between the motor and the fastener driving spindle and adapted to yield under torque to measure the torque load. The torque load on the...
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