Patent application number | Description | Published |
20090016834 | POWER TOOL | 01-15-2009 |
20090104861 | HANDLE ASSEMBLY FOR A POWER TOOL - A handle assembly for a power tool, such as an angle grinder, including first and second handle portions for gripping the power tool, the first handle portion extending substantially transverse to the second handle portion. The handle assembly also having a trigger including an elongate portion associated with the first handle portion and a flange portion associated with the second handle portion and a switch for operating the power tool actuated by movement of either the elongate or flange portion of the trigger relative to the first or second handle portions respectively. | 04-23-2009 |
20090114410 | POWER TOOL GUARD - A power tool including a power tool body, a rotatable driven member being operable for releasably gripping a working element and having a front end and a rear end, the driven member extending from the rear end, located proximally and connected to the power tool body, and terminating at the front end. The power tool has a drive mode in which rotation of the driven member drives the working element relative to the power tool body and an adjustment mode in which rotation of the driven member causes the driven member to either grip the working element or release the working element or both. The power tool also includes a guard extending over the driven member from the power tool body and terminating adjacent to the front end of the driven member, wherein at least in the power tool drive mode the front end of driven member does not extend beyond the guard. In another aspect the guard has a surface for gripping the power tool between the front end of the driven member and the power tool body. | 05-07-2009 |
20090200053 | POWER TOOL - This invention relates to a power tool one having a driven member | 08-13-2009 |
20100108552 | APPARATUS FOR FACILITATING AN IN USE CONNECTION OF AN ACCESSORY AND A DRILL - An apparatus for facilitating in use connection of an accessory, such as a drill bit, to a drill. The apparatus includes an accessory holder for holding the accessory and drill engaging means for facilitating accurate location of the drill relative to the accessory holder. Also disclosed is a drill suitable for use with the apparatus for facilitating in use connection of an accessory. | 05-06-2010 |
20100200257 | Mechanical Assembly For A Power Tool - The invention relates to a mechanical assembly for a power tool, and a power tool incorporating the mechanical assembly. The mechanical assembly includes a first member having a first axis and a first engagement portion inclined relative to the first axis and a second member having a second axis and a second engagement portion inclined relative to the second axis. The first and second engagement portions engage each other by movement of the first and second members relative to each other in the direction of at least one of the axes. The power tool includes a power tool body and a rotatable driven member being operable for releasably gripping a working element, the driven member having a drive mode in which rotation of the driven member drives the working element relative to the power tool body and an adjustment mode in which rotation of the driven member causes the driven member to either grip the working element or release the working element or both. The power tool also includes means for adjusting the driven member between the modes which includes the mechanical assembly wherein the first and second engagement portions engage each other by movement of the first and second members relative to each other in the direction of at least one of the axes and wherein engagement between the first and second engagement portions adjusts the driven member to the adjustment mode and disengagement between the first and second engagement portions adjusts the driven member to the drive mode. The power tool may also include a first torque control means that is operable for controlling the amount of torque applied to the driven member by the power drive when in the drive mode and a second torque control means that is operable for controlling the amount of torque applied to the driven member by the power drive when in the adjustment mode. The power tool may further include a gearbox with one or more speeds and a switch with two or more positions that is operable for selecting the modes, the gear speeds and the first and second torque control means. | 08-12-2010 |
20110057626 | POWER SUPPLY AND CHARGING CIRCUIT FOR HIGH ENERGY CAPACITORS - A switched mode power supply is disclosed for charging a load such as a high energy capacitor. The power supply is adapted to operate in a substantially constant power mode and includes a flyback converter having a primary circuit including a controller and a secondary circuit for providing an output to the load. The power supply is arranged such that it utilizes substantially no current limiting in the secondary circuit. The load includes a plurality of high energy capacitors and a plurality of terminals. The terminals are connected to the capacitors such that the capacitors may be arranged in a first configuration for charging the load and may be arranged in a second configuration for discharging the load. | 03-10-2011 |
20110110734 | POWER TOOL CONFIGURED FOR SUPPORTING A REMOVABLE ATTACHMENT - This invention relates to a power tool, an accessory and a power tool and accessory system. The power tool includes a tool body and a rotatable driven member extending forward from the tool body for gripping and rotating a working element about an axis of rotation. The power tool also includes a cover surrounding the driven member having opposite rearward and forward ends with the rearward end being directly connected to the tool body so that the cover does not to rotate with the driven member. The cover includes at least one accessory attachment facility configured to facilitate releasable attachment of an accessory to the cover between the rearward and forward ends along the direction of the axis of rotation of the driven member. The power tool accessory includes at least one power tool attachment facility configured to facilitate releasable attachment of the accessory to the cover between the rearward and forward ends along the direction of the axis of rotation of the driven member. The power tool and accessory system includes a power tool and an accessory. The power tool has a tool body, a rotatable driven member extending forward from the tool body for gripping and rotating a working element about an axis of rotation, a cover surrounding the driven member having opposite rearward and forward ends with the rearward end being directly connected to the tool body so that the cover does not rotate with the driven member, the cover being configured to facilitate releasable attachment of the accessory to the cover between the rearward and forward ends along the direction of the axis of rotation of the driven member. | 05-12-2011 |
20110133696 | ACCESSORY AND CHARGING SYSTEM FOR A RECHARGEABLE HAND-HELD ELECTRICAL DEVICE - The present invention relates to rechargeable hand-held electrical devices, chargers and accessories for use therewith. The present invention provides an accessory and charging system for a rechargeable hand-held electrical device. The system includes an electrical device, an accessory and a charger. The electrical device includes a first connecting portion, the charger includes a second connecting portion and the accessory includes a third connecting portion. The first connecting portion of the electrical device is configured to mate with the second connecting portion for enabling the charger to recharge the electrical device. The first connecting portion of the electrical device is also configured to mate with the third connecting portion for enabling the electrical device to supply power to the accessory. Accordingly, the system provides a hand-held electrical device which can serve at least one primary function as well as an accessory which, when attached to the device, can serve at least one secondary function whilst requiring only a single power storage means associated with the device and a single charger to charge the device. In one form, the electrical device is an electrical appliance, such as a hand held power tool, and in another form the accessory includes an electric light. | 06-09-2011 |
20110215539 | POWER TOOL AND CHUCK RELEASE TOOL - A power tool and a chuck release tool for a power tool, the power tool including a chuck body and a locking means for locking an operational tool within the chuck, the power tool being operable in an adjustment mode to move the locking means between an open position in which the operational tool is free within the chuck and a locking position in which the locking means secures the operational tool within the chuck, and the power tool being operable in a working mode to drive rotation of the operational tool to perform work, the chuck body including a section for direct engagement with a chuck release tool to allow a user to manually move the chuck body and thereby move the locking means between the locking position and the open position, the chuck release tool having an engagement section which directly engages a section of the chuck body to allow a user to manually move the chuck body and thereby move the locking means between the locking position and the open position. | 09-08-2011 |