| Patent application number | Description | Published |
|---|
| 20080207026 | POWER TOOL, BATTERY PACK, AND METHOD OF OPERATING THE SAME - An electrical combination includes a power tool having a body, a motor supported by the body, a support portion, and a drive mechanism driven by the motor such that the drive mechanism is operable to drive a tool element. The electrical combination also includes a battery operable for coupling to the power tool via the support portion. The battery is electrically connectable with the motor to selectively supply power to the motor. A single latch is positioned on the support portion of the power tool. The single latch is moveable between a locked position to secure the battery to the power tool and an unlocked position to allow removal of the battery from the support portion of the power tool. | 08-28-2008 |
| 20090028653 | AC/DC MAGNETIC DRILL PRESS - A drill press includes a housing and a motor assembly, with a motor carriage attached to the housing. The motor assembly includes an electric motor and drill bit, and the motor carriage is operable for moving the motor assembly relative to the housing. A base, coupled to a portion of the housing, is operable for magnetically coupling the tool to a workpiece. The drill press also includes a DC power source and an AC power input for providing power to the motor. A power supply switching unit, electrically coupled to DC power source and the AC power input, selectively electrically couples the motor with one of the DC power source and the AC power input for providing power to the motor. | 01-29-2009 |
| 20090031865 | POWER TOOL, BATTERY, CHARGER AND METHOD OF OPERATING THE SAME - A power tool includes a housing assembly having a first housing portion and a second housing portion supported for pivoting movement relative to the first housing portion about a pivot axis. The first housing portion supports a motor. The second housing portion includes a chuck for supporting a tool element. The power tool also includes a gear supported within the housing assembly for rotation relative to at least one of the first and second housing portions about the pivot axis. The gear is operable to transfer drive force from the motor to the tool element. | 02-05-2009 |
| 20090061302 | BATTERY PACK INCLUDING AN ELECTRIC HARNESS AND METHOD OF MANUFACTURING THE SAME - A battery pack including an electric coupling assembly. The battery pack includes a top housing, a bottom housing, a cell pad, a plurality of battery cells, a harness, and a circuit board. The harness includes a frame and electric coupler assembly having a plurality of internal and external electric couplings. The internal and external electric couplings include cell couplings and circuit board couplings. The internal and external couplings are held in place during manufacturing by links which are cut after the electric coupler assembly is molded into the frame. | 03-05-2009 |
| 20090071015 | BLADE CLAMP MECHANISM - A cutting tool clamp mechanism for a power tool includes a housing supported on a spindle, the spindle being configured to drive a cutting tool. A locking member is positioned in and movable with respect to the housing, the locking member including a slot extending through the locking member for receiving the cutting tool, the slot defined by at least one surface for engaging the cutting tool when the cutting tool is received by the slot. A biasing member is configured for applying a force to the locking member to bias the at least one surface of the locking member into engagement with the cutting tool when the cutting tool is received by the slot. The locking member is movable between an engaged condition, in which the slot receives the cutting tool into the housing in a first direction and the at least one surface of the locking member is engageable with the cutting tool to resist movement of the cutting tool in a second direction opposite the first direction, and a released condition, in which the locking member moves against the force of the biasing member and the at least one surface of the locking member is disengageable from the cutting tool. | 03-19-2009 |
| 20090071016 | BLADE CLAMP MECHANISM - A cutting tool clamp mechanism for a power tool includes a housing supported by a spindle, the spindle being configured to receive and drive a cutting tool. A clamping system is supported by the housing and a portion of the clamping system is movable relative to the spindle. The clamping system includes an actuator portion and an engaging portion coupled to the actuator portion. The clamping system has an engaged condition, in which the engaging portion is configured to secure the cutting tool to the spindle, and a released condition, in which the engaging portion is configured to disengage the cutting tool from the spindle. A biasing member positioned between the spindle and the clamping system biases the clamping system to the engaged condition. When the cutting tool is removed from the housing, the clamping system is configured to be held in the released condition, and upon insertion of the cutting tool into the housing, the clamping system moves from the released condition to the engaged condition. | 03-19-2009 |
| 20090072500 | BLADE CLAMP MECHANISM - A cutting tool clamp mechanism for a power tool includes a housing supported by a spindle, the spindle being configured to receive and drive a cutting tool along a longitudinal axis of the spindle. A clamping system is supported by the housing and includes an engaging portion movable relative to the spindle, the clamping system having an engaged condition, in which the engaging portion is engageable with the cutting tool to secure the cutting tool in the spindle, and a released condition, in which the engaging portion is disengageable with the cutting tool. A biasing member is positioned between the housing and the clamping system, and operable to bias the clamping system to the engaged condition. When the cutting tool is removed from the spindle, the clamping system is held in the released condition, and upon insertion of the cutting tool into the housing, the clamping system moves from the released condition to the engaged condition. | 03-19-2009 |
| 20100088898 | PIPE CUTTER - A pipe cutter for cutting a pipe includes a cutting head assembly having a first carriage and a second carriage spaced apart to define a cutting area. The first carriage supports a cutting mechanism, and the second carriage is configured to support a pipe within the cutting area. The carriages have a locked state and an unlocked state such that when the carriages are in the unlocked state, the carriages are movable relative to each other and biased into the cutting area. The pipe cutter also includes a drive assembly configured to rotate the cutting head assembly and a locking mechanism configured for changing the carriages from the unlocked state to the locked state and for holding the carriages in the locked state. The locking mechanism includes an actuation member rotatably coupled to the first carriage. | 04-15-2010 |
| 20100117885 | ELECTROMAGNETIC SCANNING IMAGER - In one aspect, the present invention provides an imager, preferably portable, that includes a source of electromagnetic radiation capable of generating radiation with one or more frequencies in a range of about 1 GHz to about 2000 GHz. An optical system that is optically coupled to the source focuses radiation received therefrom onto an object plane, and directs at least a portion of the focused radiation propagating back from the object plane onto an image plane. The imager further includes a scan mechanism coupled to the optical system for controlling thereof so as to move the focused radiation over the object plane. A detector optically coupled to the lens at the image plane detects at least a portion of the radiation propagating back from a plurality of scanned locations in the object plane, thereby generating a detection signal. A processor that is in communication with the detector generates an image of at least a portion of the object plane based on the detection signal. | 05-13-2010 |
| 20100162579 | RECIPROCATING POWER TOOL HAVING A COUNTERBALANCE DEVICE - A reciprocating power tool that includes a drive system having a first driven gear that includes a spindle counterbalance weight and a second driven gear that includes a spindle counterbalance weight. The first driven gear and the second driven gear rotate in opposite directions about an axis of rotation in response to rotation of a driving gear by a motor. The power tool further includes a spindle having a longitudinal axis and a first end that is configured to support a tool element. The spindle is coupled to one of the first driven gear and the second driven gear by a scotch yoke mechanism to reciprocate the spindle with respect to a housing of the power tool along the longitudinal axis of the spindle in response to operation of the motor. | 07-01-2010 |
| 20100192392 | HAND SAW - A hand saw that includes a frame, a lever, and a rod movable in a first direction to increase a distance between a first blade support and a second blade support and the rod is movable in a second direction to decrease the distance between the first blade support and the second blade support. The rod is coupled to the lever and the frame such that the rod is movable in the first direction and with the lever when the lever moves from a release position toward a tension position in order to tension the blade. The rod is coupled to the lever and the frame such that the rod is movable with respect to the frame in the first direction and the second direction and movable in the first direction and the second direction independent of the lever when the lever is in the release position. | 08-05-2010 |
| 20100319201 | HAND SAW - A hand saw that includes a saw blade and a handle assembly having a clamp member movable between a clamped position and a released position. In the clamped position the clamp member exerts a clamping force on a top edge of the saw blade within a slot of the handle assembly to couple the saw blade to the handle assembly and to retain a tang of the saw blade within the slot. In the released position the tang is removable from the slot. A first interior wall and a second interior wall of the handle assembly that define the slot are flat such that the tang of the saw blade can be removed from the slot without moving the saw blade in a direction normal to a longitudinal axis of the saw blade when the clamp member is in the released position. | 12-23-2010 |
| 20100325894 | PIPE CUTTER - A power tool includes a pipe holder, a knife pivotally coupled to the pipe holder, and a drive mechanism coupled to at least one of the pipe holder and the knife. The drive mechanism is operable to move the at least one of the pipe holder and the knife relative to the other of the pipe holder and the knife. The power tool also includes a motor coupled to the drive mechanism and a power supply electrically coupled to the motor to selectively power the motor for operating the drive mechanism. | 12-30-2010 |
| 20110005083 | PIPE CUTTER - A power tool includes a motor, a pipe holder configured to support a pipe, and a cutting mechanism coupled to the pipe holder. The cutting mechanism is movable relative to the pipe holder. The power tool also includes a drive mechanism coupled to the cutting mechanism and the motor to move the cutting mechanism from a starting position toward the pipe holder to cut the pipe. The drive mechanism includes a first member operable to disengage a second member to allow movement of the cutting mechanism to the starting position. | 01-13-2011 |
| 20110005084 | PIPE CUTTER - A power tool, such as a pipe cutter, includes a rotatable cutting head assembly, an electric motor connectable to a rechargeable battery, and a controller. The controller is configured to monitor the state of charge on the battery, compare the state of charge to one or more thresholds, and prevent or limit operation of the power tool when the state of charge is less than or equal to one or more of the thresholds. In some embodiments, the threshold includes the state of charge required to cut a pipe, the state of charge required to return the cutting head assembly to a home position, and a state of charge indicative of an overdischarged condition of the battery. In some embodiments, the controller is configured to detect when the pipe cutter has completed cutting the pipe and returns the cutting head assembly to the home position. | 01-13-2011 |
| 20110296696 | WORKPIECE GUARD AND BLADE GUARD FOR BAND SAW - A hand-held band saw has a handle for grasping the band saw, a motor, a drive wheel driven by the motor, a driven wheel and a continuous blade disposed about the drive wheel and the driven wheel. A portion of the continuous blade is positioned in a cut zone to perform a cutting operation. A workpiece guard is spaced from the continuous blade and positioned generally between the cut zone and the handle for limiting movement of the workpiece after the cutting operation. | 12-08-2011 |
| 20120111592 | IMPACT TOOL WITH ADJUSTABLE CLUTCH - An impact tool includes a housing, a motor supported in the housing, an output shaft rotatably supported in the housing about a central axis, an impact mechanism coupled between the motor and the output shaft and operable to impart a striking rotational force to the output shaft, and a clutch mechanism coupled between the impact mechanism and the output shaft. The clutch mechanism is operable in a first mode, in which torque from the motor is transferred to the output shaft through the impact mechanism, and a second mode, in which torque from the motor is diverted from the output shaft toward a portion of the impact mechanism. | 05-10-2012 |
| 20120118596 | IMPACT TOOL - An impact tool includes a housing, a motor supported in the housing and defining a first axis, an output shaft rotatably supported in the housing about a second axis oriented substantially normal to the first axis, and an impact mechanism coupled between the motor and the output shaft and operable to impart a striking rotational force to the output shaft. | 05-17-2012 |
| 20120210567 | BATTERY PACK INCLUDING AN ELECTRIC HARNESS AND METHOD OF MANUFACTURING THE SAME - A battery pack including an electric coupling assembly. The battery pack includes a top housing, a bottom housing, a cell pad, a plurality of battery cells, a harness, and a circuit board. The harness includes a frame and electric coupler assembly having a plurality of internal and external electric couplings. The internal and external electric couplings include cell couplings and circuit board couplings. The internal and external couplings are held in place during manufacturing by links which are cut after the electric coupler assembly is molded into the frame. | 08-23-2012 |
| 20120324745 | HAND SAW - A hand saw that includes a saw blade and a handle assembly having a clamp member movable between a clamped position and a released position. In the clamped position the clamp member exerts a clamping force on a top edge of the saw blade within a slot of the handle assembly to couple the saw blade to the handle assembly and to retain a tang of the saw blade within the slot. In the released position the tang is removable from the slot. A first interior wall and a second interior wall of the handle assembly that define the slot are flat such that the tang of the saw blade can be removed from the slot without moving the saw blade in a direction normal to a longitudinal axis of the saw blade when the clamp member is in the released position. | 12-27-2012 |
| 20130008031 | PIPE CUTTER - A pipe cutter for cutting a pipe includes a cutting head assembly having a first carriage and a second carriage spaced apart to define a cutting area. The first carriage supports a cutting mechanism, and the second carriage is configured to support a pipe within the cutting area. The carriages have a locked state and an unlocked state such that when the carriages are in the unlocked state, the carriages are movable relative to each other and biased into the cutting area. The pipe cutter also includes a drive assembly configured to rotate the cutting head assembly and a locking mechanism configured for changing the carriages from the unlocked state to the locked state and for holding the carriages in the locked state. The locking mechanism includes an actuation member rotatably coupled to the first carriage. | 01-10-2013 |
| 20130097873 | PIPE CUTTER - A power tool that includes a pipe holder, a knife pivotally coupled to the pipe holder, and a drive mechanism coupled to at least one of the pipe holder and the knife. The power tool also includes a motor coupled to a drive mechanism, and a removable and rechargeable battery pack coupled to the motor to selectively provide power signals to the motor. The power tool also includes a controller configured to monitor a plurality of conditions of the power tool, such as battery pack voltage, battery pack temperature, operational current, and the like. The controller is also configured to detect one or more events related to the plurality of conditions of the power tool. For example, the controller is configured to monitor the operational current of the power tool. If the operational current of the power tool exceeds a first threshold value, a power signal duty cycle is reduced from a first duty cycle value to a second duty cycle value to limit the amount of torque the power tool is able to generate. | 04-25-2013 |
| 20130174428 | RECIPROCATING POWER TOOL HAVING A COUNTERBALANCE DEVICE - A reciprocating power tool that includes a drive system having a first driven gear that includes a spindle counterbalance weight and a second driven gear that includes a spindle counterbalance weight. The first driven gear and the second driven gear rotate in opposite directions about an axis of rotation in response to rotation of a driving gear by a motor. The power tool further includes a spindle having a longitudinal axis and a first end that is configured to support a tool element. The spindle is coupled to one of the first driven gear and the second driven gear by a scotch yoke mechanism to reciprocate the spindle with respect to a housing of the power tool along the longitudinal axis of the spindle in response to operation of the motor. | 07-11-2013 |
| 20140033547 | PORTABLE BATTERY-POWERED RECIPROCATING SAW - A power tool includes a housing having a handle configured for a user, the handle defining a first axis, a motor supported by the housing, the motor defining a second axis along a length of the motor, a tool element movably supported by the housing and drivingly coupled to the motor, the tool element defining a third axis along a length of the tool element. Each of the first, second, and third axes are oblique with respect to each of the other axes. | 02-06-2014 |
| 20140093753 | BATTERY PACK INCLUDING AN ELECTRIC HARNESS AND METHOD OF MANUFACTURING THE SAME - A battery pack including an electric coupling assembly. The battery pack includes a top housing, a bottom housing, a plurality of battery cells, a harness, and a circuit board. The harness includes a frame and electric coupler assembly having a plurality of internal and external electric couplings. The internal and external electric couplings include cell couplings and circuit board couplings. | 04-03-2014 |
| 20140173907 | PIPE CUTTER - A power tool includes a housing assembly, a motor, a pipe holder, and a knife pivotally coupled to the pipe holder at a pivot point for movement relative to the pipe holder. The knife is operable to pivot through an angle toward the pipe holder during a cutting motion and is operable to pivot through the angle away from the pipe holder during a return motion. The power tool also includes a drive mechanism having a first gear coupled to the motor and a second gear coupled to the knife. The power tool further includes a release mechanism coupled to the drive mechanism. The release mechanism is operable to selectively disconnect the second gear from the knife so that movement of the motor is not transmitted to the knife and the knife is movable through the angle away from the pipe holder. | 06-26-2014 |
| 20140173916 | WORKPIECE GUARD AND BLADE GUARD FOR BAND SAW - A hand-held band saw having a deck defining a front and a rear, and an opening in the front defining a cut zone. The band saw also includes a first wheel supported by a first deck portion, a second wheel supported by a second deck portion, a motor operably coupled to the first wheel, a single handle providing a single grip for a user to hold the band saw with only one hand, and a continuous blade having a cutting edge. The continuous blade includes a first portion positioned in the cut zone for performing a cutting operation and a second portion positioned outside of the cut zone. A blade guard is positioned proximate the cutting edge of the second portion of the continuous blade to substantially provide a barrier between the cutting edge and an exterior of the band saw. | 06-26-2014 |
| 20140262394 | IMPACT TOOL - An impact tool includes a housing, a motor having an output shaft defining a first axis, a drive shaft rotatably supported by the housing about a second axis oriented substantially normal to the first axis, and an impact mechanism coupled between the motor and the drive shaft and operable to impart a striking rotational force to the drive shaft. The impact mechanism includes an anvil rotatably supported by the housing and coupled to the drive shaft, and a hammer coupled to the motor to receive torque from the motor and impart the striking rotational force to the anvil. The impact tool also includes a locking mechanism operable to selectively lock the drive shaft relative to the housing. | 09-18-2014 |
