Abstract: A robot cleaner having a fan brake device is provided, which includes a main cleaner body having an accommodating slot used to contain a dust box and a fan, and at least one brake device is disposed inside the accommodating slot. The brake device is disposed at a notch on the bottom of the dust box for the fan to be inserted into, and under the junction line between the notch and the bottom edge of the dust box. Therefore, when the dust box is taken off from the main cleaner body, the flexible element of the brake device can press a soft stopper upward and then the soft stopper presses against the bottom of the fan blade of the fan to stop the fan.

Abstract: A bushing installation tool having a plurality of spacer rods with first and second ends and a pressure plate mounted to the first ends of the spacer rods. A first base includes portions configured to engage an end of a cylindrical bushing and to restrain radial expansion of a cylindrical bushing received. The bushing installation tool has a first stage in which the first base being releasably engage with the second ends of the spacer rods. A second base including portions configured to engage the end of the cylindrical bushing and to permit radial expansion of the cylindrical bushing engaged therewith. The second base also including portions configured to releasably engage the second ends of the spacer rods and being alternatively interchangeable with the first base. The bushing installation tool includes a second stage in which the second base is releasably engaged with the second ends of the spacer rods.

Abstract: A cleaner is disclosed, which comprises a main body including an suction inlet through which air containing dust enters, a dust separator provided to separate dust from the air while the air entering from the suction inlet is moving, a first dust collector configured to collect the dust separated by the dust separator, a cyclone portion configured to rotate the air to separate the dust from the air, and a second dust collector collecting the dust separated by the cyclone portion. The dust separator is provided with a plurality of plate shaped members arranged at a predetermined angle with respect to a moving direction of the air, and arranged to be spaced apart from one another to move the air.

Abstract: A setting torque tool to tighten a screw or a similar fastener to a target torque is disclosed. The torque tool comprises a main body with a housing and a drive shaft, which is firmly attached to the housing to transfer a torque. The drive shaft has a connection area, to which a drive can be connected. An adapter for an operating tool rotates together with the housing and the drive shaft to transfer the torque, Sensor measure and evaluate the torque transferred. A release mechanism, which is arranged in the housing, releases the torque tool upon reaching a target torque.

Abstract: An abrasive article having a plurality of apertures arranged in a non-uniform distribution pattern, wherein the pattern is spiral or phyllotactic, and in particular those patterns described by the Vogel equation. Also, provided is a back-up pad having a spiral or phyllotactic patterns of air flow paths, such as in the form of open channels. The back-up pad can be specifically adapted to correspond with an abrasive article having a non-uniform distribution pattern. Alternatively, the back-up pad can be used in conjunction with conventional perforated coated abrasives. The abrasive articles having a non-uniform distribution pattern of apertures and the back-up pads can be used together as an abrasive system.

Abstract: An extensive shaft assembly includes a casing, an extensive shaft, a sensor, a warning apparatus, and a connecting apparatus. The extensive shaft extends throughout the casing. The sensor is connected to the extensive shaft. The warning apparatus includes an LED module and a light-guiding ring. The light-guiding ring includes a slit. The LED module is electrically connected to the sensor and located in the slit of the LED module. The connecting apparatus connects the light-guiding ring to the casing so that an external annular portion of the light-guiding ring is visible through a gap between the casing and the connecting apparatus.

Abstract: One fusion machine can butt or socket fuse polyolefin pipes and fittings in straight alignment or at inwardly or outwardly mitered universal angles from 0° to 45° for butt fusion and from 0° to 10° for socket fusion. The machine is manually driven, hydraulically monitored and operated in all configurations from one side of the machine.

Abstract: A roller wrench having a body with a circular chamber; a driving member being a regular polygonal component capable of rotating in the chamber; a plurality of rollers installed in the chamber, each of the rollers is located between a side of the driving member and a peripheral wall of the chamber; a reversing knob capable of driving the rollers to move in the chamber so that each of the rollers moves between two edges of each of sides of the driving member; and at least one elastic positioning component installed on one of the sides of the driving member, and capable of elastically moving into the driving member or protruding from a peripheral surface of the driving member. The elastic positioning component is moved into the driving member when being compressed; and is protruded from the driving member when not being acted on by an external force.

Abstract: In a dust collector, an intake side surface on the intake portion side of a filter expands in a first direction, and extends in a direction including at least a component of a second direction. The housing of the dust collector includes a wall that defines an intake passage. The intake passage extends from the intake portion side to the filter side. One end of the intake passage is linked to the outside of the housing via the intake portion. Another end of the intake passage opposes a top surface side region of the intake side surface of the filter in a third direction perpendicular or substantially perpendicular to the first direction and the second direction. When viewed from the first direction, the top surface side region approaches the another end of the intake passage as it approaches the top surface side in the second direction.

Abstract: A vacuum cleaner comprising a suction source operable to generate an airflow, a first stage cyclonic separator configured to separate debris from the airflow, the airflow rotatable about a first stage separator axis in the first stage separator to separate the debris from the airflow, a second stage cyclonic separator downstream from the first stage cyclonic separator, the second stage cyclonic separator configured to separate debris from the airflow, a first stage collector configured to receive debris from the first stage cyclonic separator, and a second stage collector configured to receive debris from the second stage cyclonic separator, the second stage collector being within the first stage collector, the second stage collector having a cross section taken normal to the first stage separator axis that is polygonal.

Abstract: A retaining structure for a drive gear of a ratchet wrench. The drive gear has a partial internal bore that receives a gear retainer that is coupled to the tool housing via screws. The gear retainer can further be rotatably coupled to the drive gear to retain the drive gear within the head of the tool without requiring a cover plate. By potentially avoiding the cover plate, the ratchet wrench head can be thinner compared to conventional ratchet wrenches and the ratchet wrench seal can be improved.

Abstract: A ratchet wrench includes a main body, a ratchet wheel, a pawl member, and a direction control unit. The main body is provided with a first receiving recess, a second receiving recess, a third receiving recess, a first abutting face, and a second abutting face. The pawl member is provided with an engaging portion, a cavity, two first abutting portions, and two corners. The direction control unit includes a rotation member, a push member, and an elastic member. The rotation member is provided with a cylindrical block, and two second abutting portions. The push member is provided with a push face and a receiving space. The push member is restricted by the first abutting face and restricts the rotation member such that the rotation member is mounted in and will not be detached from the third receiving recess.

Abstract: A ratchet wrench with electric assistance includes a wrench body, a ratchet device, a pawl device, and a switch device. The switch device is configured for optionally gearing the pawl device with the ratchet device, so that the ratchet wrench is operated in a clockwise or counterclockwise direction. During the directional changing process, the switch device optionally engages the first gear and the second gear with the transmission gear of the power device, such that the power device transmits the power to the ratchet device for controlling the clockwise or counterclockwise rotation of the ratchet device, realizing the ratchet wrench with an electric assistance function.

Abstract: A carrier head for chemical mechanical polishing includes a base, an actuator, a substrate mounting surface, and a retainer. The retainer includes an inner section and an outer section connected by a flexure. A bottom of the inner section of the retainer provides an inner portion of a lower surface configured to contact a polishing pad. An inner surface of the inner section extends upwardly from an inner edge of the lower surface to circumferentially surround the substrate mounting surface. The inner section of the retainer is positioned to receive a controllable load from the actuator and is vertically movable relative to the base. A bottom of the outer section of the retainer provides an outer portion of the lower surface. The outer section of the retainer is vertically fixed to the base. The inner section of the retainer is vertically movable relative to the outer section of the retainer.

Abstract: A tie-down apparatus includes a frame, a reel, a coils spring and a strap-replacing tool. The reel is supported on the frame. The coil spring includes an end connected to the frame and another end connected to the reel. The strap-replacing tool for gear includes a gear and a pawl. The gear is connected to the reel at an end and formed with teeth on a periphery. The is pawl engaged with the teeth of the gear so that the pawl prevents the gear from rotation in a first sense of direction and that the pawl allows the gear to spin in a second sense of direction opposite to the first sense of direction. The pawl keeps the gear in position against torque provided from the coil spring via the reel that tends to rotate the gear in the first sense of direction.

Abstract: A torque wrench includes a handle, a wrench, a clutch, an adjustor, a grip, a scale ring and a locking collar. The wrench includes a lever inserted in and pivotally connected to the handle. The clutch is connected to the lever to stop rotating a workpiece when a maximum value of torque is reached. The adjustor is connected to the clutch and includes a knob operable to adjust the maximum value of torque. The knob is provided with a first color. The grip is connected to the handle. The scale ring is connected to the grip. The locking collar is provided with a second color. The locking collar is movable between a locking position to prevent the knob from rotation relative to the grip and show the first color and an unlocking position to allow the knob to rotate relative to the grip and show the second color.

Abstract: Tooling for engaging with a workpiece has a body and a spring section formed as a monolithic structure from a resilient material. At least three deformable arms connect a movable shuttle to the body, the arms being configured to enable constrained movement of the shuttle relative to the body.

Abstract: A vacuum cleaner includes a housing, a debris chamber defined within the housing, a filter disposed within the debris chamber, a motor assembly including a motor and an impeller connected to the housing and operable to generate airflow through the debris chamber and filter, a voltage sensor positioned to detect an input voltage applied to the motor, a temperature sensor positioned to detect a temperature associated with the motor and a controller communicatively coupled to the voltage sensor, temperature sensor, and motor. The controller includes a processor and memory having instructions that program the processor to determine a threshold temperature based at least in part on the input voltage detected by the voltage sensor, compare the temperature associated with the motor to the threshold temperature, and output a warning that the filter is full of debris when the temperature associated with the motor exceeds the threshold temperature.

Abstract: A torque wrench includes a main body, a driving portion, a torque-disengageable mechanism, a torque assembly and an adjusting assembly. The main body defines an axial direction and includes a handle and a tubular member which are assembled with each other. The handle has an opening which is open radially. The torque-disengageable mechanism is swingably disposed within the tubular member. The torque assembly is disposed in the main body. The adjusting assembly includes a position-limiting member, a slidable assembly and an adjusting member. The adjusting member is rotatably connected to the handle and corresponding to the opening. The adjusting member has a first threaded portion. The slidable assembly has a second threaded portion screwed with the first threaded portion.

Abstract: A power tong having a door that pivots in a vertical plane that is parallel to a plane that includes the axis of the tubular being made up or broken down by the power tong. The door is pivotally coupled to a power tong body for movement between an open position, that allows a tubular joint to be introduced through a throat and into a bay of the power tong, and a closed position that closes the bay of the power tong to enable the gripping and rotating components of the power tong to be engaged to grip and rotate the tubular joint introduced into the power tong. The power tong door includes structures that are engaged upon pivotal closure of the door with corresponding structures on the power tong body.