Abstract: A driving device for a nail gun includes a striking unit and an air storage unit. The striking unit includes a striking cylinder connected to the nail gun and defining a cylinder chamber having an opening, and a piston disposed in and making an air-tight contact with the striking cylinder. The air storage unit includes an air storage cylinder including a protrusion that protrudes toward the opening and cooperating with the striking cylinder to define an air storage chamber that is in fluid communication with the cylinder chamber via the opening. When the piston moves in a pressure-generating direction, air in the air storage chamber is pressurized. The air storage unit further includes a lubricant disposed in the cylinder chamber and the air storage chamber, and flowing along the protrusion into the cylinder chamber to lubricate the piston.

Abstract: A semiconductor structure includes a first gate structure, a second gate structure coupled to the first gate structure, a source region, a first drain region, and a second drain region. The source region is surrounded by the first gate structure and the second gate structure. The first drain region is separated from the source region by the first gate structure. The second drain region is separated from the source region by the second gat structure. A shape of the first drain region and a shape of the second drain region are different from each other from a plan view.

Abstract: The disclosure provides an electronic device, including a circuit board, multiple semiconductor components, a first light reflecting structure, and a second light reflecting structure. The circuit board includes a substrate, and the substrate may have a first surface and at least one side surface. The multiple semiconductor components are disposed on the first surface. The first light reflecting structure is disposed on the first surface. The second light reflecting structure is disposed on the first surface and the at least one side surface.

Abstract: A pneumatic electric nail gun includes a muzzle unit, a striking cylinder that is connected to the muzzle unit, a piston rod subunit that extends movably from the striking cylinder into the muzzle unit, an electric unit that drives movement of the piston rod subunit from a standby position to a nail-striking position for striking a nail, and a connecting unit that includes a plurality of fasteners and a plurality of buffer members. The fasteners extend through the electric unit and secure the electric unit to the muzzle unit. Each of the buffer members surrounds a respective one of the fasteners and fills a space between the respective one of the fasteners, the electric unit and the muzzle unit for shock absorption during a nail-striking process.

Abstract: An electric power tool includes a motor, a lifter, a firing pin, an electromagnet, a driving circuit, a latch, and a controller. The lifter is driven by the motor to drive the firing pin to perform a firing action. The driving circuit provides electric current to excite the electromagnet. The latch is moved by the electromagnet from a blocking position where the latch blocks the firing pin to move in a firing direction to a non-blocking position where the latch does not block the firing pin when the electromagnet is in an excited state. The controller, during an excitement period, controls the driving circuit to provide constant current for a first time period to excite the electromagnet to the excited state, and provide pulsating current for a second time period to keep the electromagnet in the excited state.

Abstract: A lifting gear assembly for an electric nail gun that strikes a nail in a nail-striking direction includes a muzzle seat connected to the electric nail gun, a sprocket unit including two sprocket wheels spaced apart from each other and rotatably mounted in the electric nail gun, a motor unit for driving rotation of one of the sprocket wheels, and a chain unit including a roller chain trained on the sprocket wheels and a lifting gear device mounted to the roller chain. The lifting gear device includes a pushing member driven movably by the roller chain along a path having a stroke in which the pushing member moves in a pressure-generating direction opposite to the nail-striking direction. The pushing member pushes the striking pin, when moving along the first stroke, to move the striking pin from a post-striking position to a pre-striking position.

Abstract: A haptic actuator may include a base, a field member coupled to the base and that may include spaced apart permanent magnets. The haptic actuator may also include a coil having a loop shape defining a slotted opening therein, and a spring member suspending the coil so that the field member is within the slotted opening and permitting relative movement of the field member and the coil.

Abstract: A pneumatic electric nail gun includes a muzzle unit, a striking cylinder that is connected to the muzzle unit, a piston rod subunit that extends movably from the striking cylinder into the muzzle unit, an electric unit that drives movement of the piston rod subunit from a standby position to a nail-striking position for striking a nail, and a connecting unit that includes a plurality of fasteners and a plurality of buffer members. The fasteners extend through the electric unit and secure the electric unit to the muzzle unit. Each of the buffer members surrounds a respective one of the fasteners and fills a space between the respective one of the fasteners, the electric unit and the muzzle unit for shock absorption during a nail-striking process.

Abstract: A haptic actuator may include a base, a field member coupled to the base and that may include spaced apart permanent magnets. The haptic actuator may also include a coil having a loop shape defining a slotted opening therein, and a spring member suspending the coil so that the field member is within the slotted opening and permitting relative movement of the field member and the coil.

Abstract: A nail gun includes a gun body, a safety unit and an adjusting unit. The safety unit includes a first safety member movable relative to the gun body, and a second safety member for being pushed by the first safety member. The adjusting unit includes a switch member movable between a deep-drive position and a shallow-drive position. The switch member has a first abutment surface aligned with the first safety member when the switch member is at the deep-drive position, and a second abutment surface aligned with the first safety member when the switch member is at the shallow-drive position.

Abstract: Disclosed are a nailing device and an adjustable nailing depth module used in a gun body of the nailing device. The gun body has a muzzle and a safety device capable of moving reciprocally with respect to the muzzle. The adjustable nailing depth module includes a fixed rod and an adjusting shaft. The fixed rod and muzzle are parallelly fixed to the gun body and extended to a length. The fixed rod has an end section away from the gun body. The adjusting shaft and the end section of the fixed rod are coupled to each other by a screw structure. The adjusting shaft is corresponsive to the safety device. The adjusting shaft can move away from or close to the safety device by the screw structure. The safety device is blocked by the adjusting shaft to restrict the distance of pressing the safety device downwardly towards the muzzle.

Abstract: A nail gun includes a gun body, a safety unit and an adjusting unit. The safety unit includes a first safety member movable relative to the gun body, and a second safety member for being pushed by the first safety member. The adjusting unit includes a switch member movable between a deep-drive position and a shallow-drive position. The switch member has a first abutment surface aligned with the first safety member when the switch member is at the deep-drive position, and a second abutment surface aligned with the first safety member when the switch member is at the shallow-drive position.

Abstract: A fuel transmitting device is adapted for use in a gas nail gun which is formed with a combustion chamber and an accommodating chamber, and includes a cylinder cover, a door pivotable between a close position and an open position, and a connector. The cylinder cover is formed with a passage having an inlet that is proximate to the accommodating chamber and an outlet that is proximate to the combustion chamber. The connector has an input opening and an output opening. When the door is at the close position, the connector is received in the accommodating chamber and the output opening communicates with the inlet of the cylinder cover. When the door moves from the close position to the open position, the connector is removed from the accommodating chamber.

Abstract: A system according to one embodiment includes a slider adapted for use in a hard disk drive; and a laser coupled to a slider, wherein electrical contacts of the laser are positioned towards or face the slider, wherein light from the laser is emitted towards the slider, wherein the slider acts as a heat sink for the laser.

Abstract: In a fastener feeding device for a driving tool, in response to a rearward displacement of a contact arm, a carrier member is displaced from an upper position to a lower position, and a claw end of a claw member is dragged downward. Once a first one of fasteners is struck out of a striking path, a connection strip for holding the fasteners is lifted by a biasing force of a return biasing member while the carrier member is displaced from the lower position to the upper position.

Abstract: An oscillation reducing suspension device for a fan motor of a combustion-powered tool includes a holding web member sleeved on the fan motor, upper and lower retaining members disposed to secure the holding web member on the fan motor, upper and lower damping units which are respectively brought into abutting engagement with upper and lower surfaces of the holding web member, and an upward-movement restricting member securely mounted on an upper major surface of a cylinder head. Due to engagement between the restricting member and the upper damping unit, the upper and lower damping units can absorb impact resulting from oscillating movement of the fan motor.

Abstract: In a combustion-type power tool, when a safety unit is pressed against a workpiece to cause a valve sleeve to close a combustion chamber, a power region of a lever is actuated to permit a weight region of the lever to displace a holding member holding a fuel canister from a normal position to a pressed position. When the holding member is in the pressed position, a valve stem of the fuel canister is forced into pressing engagement with an intake port of a fuel canister actuation unit to permit delivery of a measured dose of fuel to the combustion chamber through the intake port.

Abstract: Embodiments of the present invention generally relate to a HAMR device having two temperature sensors disposed between a near field transducer (NFT) and a return pole. The two temperature sensors are aligned in a cross-track direction.

Abstract: TAR enable write heads may use a plasmonic device (e.g., an optical transducer) which uses electromagnetic energy generated from a laser to heat the magnetic media. However, as the temperature of the plasmonic device rises, the likelihood of stressing the material of the device or other materials of the head near the plasmonic device increases. Accordingly, the write head may include a temperature sensor proximate to the plasmonic device. In one embodiment, the resistance of the temperature sensor may change according to the temperature of the plasmonic device. Based on the measured resistance of the temperature sensor, a sensing circuit may adjust the power of the laser, and thus, prevent the stressing of the materials. Moreover, the thermal coupling between the temperature sensor and a heat sink connected to the plasmonic device may be improved by moving elements associated with the sensing circuit closer to a heat sink.

Abstract: A HDD comprising a temperature sensor disposed inside the HDD configured to periodically measure temperature inside of said hard disk drive; a magnetic disk; a read head; a write head; memory for storing RWO data. The RWO data is a function of a distance between the read head and the write head. The HDD also includes a RWO data adjustor configured to adjust the RWO data in response to a change in temperature of the HDD to compensate for a change in the distance between the read head and the write head based on the change in temperature.