Back to results
US 7,090,030 B2Granted
Tranducerized torque wrench
AssigneeMicrotorq, L.L.C.
InventorJerry Edward Miller
Life of this patent
Estimating the term…
Abstract
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 can be used with an associated controller that provides control commands to the tool.
Claims21
A fastener driver comprising:
- a motor capable of providing a rotational force;
- a chuck assembly operatively connectable to said motor;
- and
- a variable voltage device responsive to a magnetic field, wherein said motor is in operative communication with said variable voltage device and,
- wherein selectively moving the chuck assembly varies the magnitude of the magnetic field applied to the variable voltage device and proportionally varies the power supplied to said motor and thereby variably alters the corresponding rotational speed of the chuck assembly.
2 more elements
A system to drive fasteners comprising a fastener driver combinable with a controller assembly:
- said fastener driver comprising, a motor capable of providing a rotational force, a chuck assembly operatively connectable to said motor, and a variable voltage device responsive to a magnetic field, wherein said motor is in operative communication with said variable voltage device and wherein selectively moving the chuck assembly varies the magnitude of the magnetic field applied to the variable voltage device and proportionally varies the power supplied to said motor and thereby variably alters the corresponding rotational speed of the chuck assembly;
- said controller assembly capable of providing control instructions to said fastener driver, said control instructions comprising maximum torque magnitude, operational speed.
A fastener device useful for driving fasteners comprising:
- a motor operatively connectable with a variable voltage power source;
- a means for creating a magnetic field, wherein said magnetic field can be applied to the variable power source;
- a chuck assembly capable of coupling said fastener device with a fastener;
- and
- a transducer comprising a strain gage coupled with a flexure capable of monitoring the magnitude of the torque applied to the fastener by said fastener device and wherein selectively moving the chuck assembly varies the magnitude of the magnetic field applied to the variable voltage power source and proportionally varies the power supplied to said motor and thereby variably alters the corresponding rotational speed of the chuck assembly.
2 more elements
Dependencies are inferred from the claim text.