Abstract: Provided is a phase change memory device including a graphene layer inserted between a lower electrode into which heat flows and a phase change material layer, to prevent the heat from being diffused to an outside so as to efficiently transfer the heat to the phase change material layer, and a method of fabricating the phase change memory device. The phase change memory device includes a lower electrode; an insulating layer formed to enclose the lower electrode; a graphene layer formed on the lower electrode; a phase change material layer formed on the graphene layer and the insulating layer; and an upper electrode formed on the phase change material layer. Since a phase of the phase change material layer is changed at a small amount of driving current, the phase change memory device is fabricated to have a high driving speed and a high integration.

Abstract: Provided is a phase change memory device including a graphene layer inserted between a lower electrode into which heat flows and a phase change material layer, to prevent the heat from being diffused to an outside so as to efficiently transfer the heat to the phase change material layer, and a method of fabricating the phase change memory device. The phase change memory device includes a lower electrode; an insulating layer formed to enclose the lower electrode; a graphene layer formed on the lower electrode; a phase change material layer formed on the graphene layer and the insulating layer; and an upper electrode formed on the phase change material layer. Since a phase of the phase change material layer is changed at a small amount of driving current, the phase change memory device is fabricated to have a high driving speed and a high integration.

Abstract: A tool is provided, having a handle with a blade chamber defining a blade chamber cavity, a first locking element, and a second locking element that is user actuated, and a removable blade with a tang engageable in the blade chamber cavity and a working portion. A blade sleeve, is also provided, at least a portion of which is located on the tang.

Abstract: A tool handle for use with a removable blade having a latch opening, the tool handle having a housing defining a blade chamber in the housing, a latch disposed in the housing, configured for moving between a latched position and a released position. In the latched position, the latch is configured to extend through the latch opening. Also included is an actuator at least partially enclosed within the housing, configured for moving between a rest position and a depressed position, wherein movement of the actuator to the depressed position causes the latch to move to the released position.

Abstract: A wallboard finishing roller having an elongated bracket with two ends is provided. Two roller assemblies are attached to the bracket such that the first roller assembly includes a center axis that is perpendicular to a center axis of the second roller assembly. Each roller assembly includes a wheel, a bushing and a shaft such that the wheel is rotatable around the axis of the shaft. The roller assembly is affixed to the bracket by a bracket nut, which is held in place by a bumper.

Abstract: An electromagnetic stapler includes a driver for driving fasteners into a workpiece, and a solenoid for providing power to the driver. The solenoid has a coil, and a core that is operatively connected to the driver. The stapler also includes a manually adjustable depth adjuster for adjusting a depth of drive of the fasteners. The depth adjuster is movable between a plurality of predefined positions, including a maximum depth of drive position, a minimum depth of drive position, and at least one intermediate depth of drive position. The depth adjuster includes a cam having a cam surface that interacts with the core so as to define an upper position of the core, an adjustment knob operatively connected to the cam, and a detent mechanism for securing the cam at one of the plurality of predefined positions to thereby define the upper position of the core.

Abstract: A paper beading apparatus, includes a hopper having a body defining a chamber for holding a quantity of joint compound, and having an open upper end, an upper rim, and a lower end; a lid pivotally secured to the body for movement between an open position and a closed position, wherein in the closed position, the lid engages the open upper rim, the lid having a releasably sealable air port; and a base configured for and accommodating the hopper lower end, for receiving joint compound, and for applying the joint compound to a corner paper bead.

Abstract: A taping knife, including a blade having a proximal end and a distal end, a bracket having a first portion arranged generally parallel to the blade and attached to the blade proximal end and a second portion arranged generally perpendicular to the first portion, and a handle configured for rotation-free engagement with the bracket second portion.

Abstract: Embodiments of a power hand tool of the type which has a main body portion, a front nose portion with a tool element extending forwardly from, a handle grip below the main body portion and an operating trigger adjacent the handle grip, further comprising a stand attached to the nose portion configured to pivot between retracted and extended positions, a means for biasing the stand toward its extended position, and a release mechanism adjacent the handle grip configured to hold the stand in its retracted position, and release the stand responsive to manipulation by a user.

Abstract: A finger guard for use with a T-square having a head and a blade includes an elongated body, two finger-shielding surfaces extending along a longitudinal axis of said body for accommodating an installer's thumb, a lower edge on the body that is attachable to the blade of the T-square, and a peak edge opposite the lower edge and separating upper ends of the surfaces.

Abstract: A tool includes a blade with a working end and a handle end opposite the working end, a handle secured to the handle end and having a blade end and a hammer end, a hammer secured to the hammer end and having a body made of a relatively hard, lightweight polymeric material.

Abstract: A tool includes a blade with a working end and a handle end opposite the working end, a handle secured to the handle end and having a blade end and a hammer end, a hammer secured to the hammer end and having a body made of a relatively hard, lightweight polymeric material.

Abstract: A paper beading apparatus, includes a hopper having a body defining a chamber for holding a quantity of joint compound, and having an open upper end, an upper rim, and a lower end; a lid pivotally secured to the body for movement between an open position and a closed position, wherein in the closed position, the lid engages the open upper rim, the lid having a releasably sealable air port; and a base configured for and accommodating the hopper lower end, for receiving joint compound, and for applying the joint compound to a corner paper bead.

Abstract: A tool handle for use with a removable blade having a latch opening, the tool handle having a housing defining a blade chamber in the housing, a latch disposed in the housing, configured for moving between a latched position and a released position. In the latched position, the latch is configured to extend through the latch opening. Also included is an actuator at least partially enclosed within the housing, configured for moving between a rest position and a depressed position, wherein movement of the actuator to the depressed position causes the latch to move to the released position.

Abstract: A finger guard for use with a T-square having a head and a blade includes an elongated body, two finger-shielding surfaces extending along a longitudinal axis of said body for accommodating an installer's thumb, a lower edge on the body that is attachable to the blade of the T-square, and a peak edge opposite the lower edge and separating upper ends of the surfaces.