Abstract: A control method of a grinding water flow rate during a double side grinding process. A double side grinder used includes a grinding wheel, a feed unit and a water supply device, wherein a water inlet is disposed on the feed unit. The control method includes: prepare for grinding and complete the installation of a workpiece according to an operation procedure of the double side grinder; during a process of double side grinding, the flow rate of the water inlet is set to decrease with the shortening of the teeth length of the grinding wheel, with the flow rate of the water inlet being set to have a linear relationship with the teeth length of the grinding wheel.

Abstract: A debris collecting base station cooperates with the cleaning robot. The cleaning robot has a debris outlet for discharging debris. The debris collecting base station includes a base, a debris collecting device, a first communication component and a microcontroller. The base has a debris intake passageway. One end of the debris intake passageway pneumatically interfaces with the debris outlet, the debris collecting device is mounted on the base and is communicated with the end of the debris intake passageway away from the debris outlet. The microcontroller is electrically connected to the first communication component and the debris collecting device, which controls the first communication component to send and receive interactive signals with the cleaning robot and controls working modes of the debris collecting base station based on the interactive signals.

Abstract: A conveyor station, robot module, sweeper module, and methods for autonomously emptying debris using the conveyor station are described. In one example, a conveyor station includes a housing having an input end and an output end. The conveyor station includes a conveyor belt having a receiving region proximate to the input end and an angled transport region leading toward a dispense region. The conveyor belt has a plurality of fins that extend out from a surface of the conveyor belt. The plurality of fins enable movement of debris collected at the receiving region toward the dispense region. The dispense region is configured to push debris into a drop funnel of the housing, and the drop funnel directs debris into a receptacle. The conveyor station includes a conveyor controller of the conveyor station is configured with a sensor for detecting presence of a sweeper module. The sweeper module includes a container that holds debris collected when the sweeper module is connected to a robot module.

Abstract: A tool that is either hand-guided, or machine-guided, for performing surface treatments, such as mopping, of overhead surfaces includes a head for carrying an agitator having a generally planar face that is applied against the overhead surface being treated in uses. A transmission transmits power from a drive motor to the agitator, and an interface on the head is provided for connection to a mounting device by which the head is oriented and guided.

Abstract: A cleaning assembly and a cleaning apparatus are provided. The cleaning assembly includes a fixing mechanism, a lifting shaft, a moving member, a first drive mechanism and a cleaning module. The lifting shaft penetrates through the fixing mechanism and is configured to slide along an axial direction of the lifting shaft relative to the fixing mechanism. One end of the lifting shaft is connected to the cleaning module, and the other end is connected to the moving member. The moving member is configured to cause the lifting shaft to slide along the axial direction of the lifting shaft. The first drive mechanism is connected to the moving member by a transmission device and is configured to cause the moving member to move in a reciprocating motion.

Abstract: A robotic cleaner may include a chassis, a single drive wheel rotatably coupled to the chassis, the single drive wheel being configured to rotate about a steering axis and a drive axis, an agitator chamber having an agitator rotatable therein, and a cleaning motor assembly configured to cause the agitator to rotate and further configured to cause air to flow into the agitator chamber.

Abstract: A chemical mechanical polishing system includes a steam generator with a heating element to apply heat to a vessel to generate steam, an opening to deliver steam onto a polishing pad, a first valve in a fluid line between the opening and the vessel, a sensor to monitor a steam parameter, and a control system. The control system causes the valve to open and close in accordance with a steam delivery schedule in a recipe, receive a measured value for the steam parameter from the sensor, receive a target value for the steam parameter, and perform a proportional integral derivative control algorithm with the target value and measured value as inputs so as to control the first valve and/or a second pressure release valve and/or the heating element such that the measured value reaches the target value substantially just before the valve is opened according to the steam delivery schedule.

Abstract: A vacuum cleaner includes a first tube and a second tube positioned within the first tube, where a first end of the first tube is connected to an outlet of the backbone and a first end of the second tube connected to an inlet of the backbone. A handle is on the first end of the first tube. When the backbone is in a retracted position the first end of the first tube surrounds the second end of the second tube, the second end of the second tube obstructs the outlet of the backbone, and the second end of the first tube surrounds the first end of the second tube. When the backbone is in an extended position the second end of the first tube aligns with the second end of the second tube, leaving the outlet of the backbone unobstructed to a dustcup. A floor nozzle is connected to the inlet of the backbone and includes a nozzle motor configured to operate a brush roll axle and a casing that provides an airpath to the inlet of the backbone.

Abstract: An extraction head for a cleaning machine is disclosed for traveling along a cleaning path on a variable-height floor. The extraction head comprises a body including a floor-facing surface and an extraction aperture disposed in the floor-facing surface. The extraction head comprises a vacuum outlet in fluid communication with the extraction aperture. The extraction head comprises an adjustable-height brush positioned in front of the extraction head body along the cleaning path. The adjustable-height brush is configured to translocate upwardly and downwardly as the extraction head moves along the cleaning path on the variable-height floor. The adjustable-height brush may comprise a proximal end and a distal end opposite the proximal end. The proximal and distal ends may be configured to translocate upwardly and downwardly relative to each other as the extraction head moves along the cleaning path on the variable-height floor.

Abstract: A chemical mechanical polishing (CMP) apparatus and a CMP pad, the apparatus including a rotating plate; a CMP pad on an upper surface of the rotating plate; a rotating body facing the rotating plate and bringing a wafer into contact with the CMP pad to press the wafer; and a slurry supply configured to supply slurry to the CMP pad, wherein the CMP pad includes a pad body having a circular plate shape; a plurality of circular grooves on a bottom surface of the pad body, the plurality of circular grooves having a circular shape; and a connection groove connecting the plurality of circular grooves, the connection groove having a linear shape.

Abstract: A multifunctional push-pull mop includes a base plate, a support member, and an elastic member. A user can bring the base plate to which a cleaning cloth is attached into close contact with a floor, a wall, a ceiling, or the like, using a small force, and when the user moves the base plate to which the cleaning cloth is attached from a boundary portion between a floor and a wall or between a wall and a ceiling to the floor, wall, or ceiling, the base plate can be rotated by the elastic restoration force of the elastic member to instantly come into close contact with the floor, wall, or ceiling, thereby allowing the user to conveniently move the base plate from the boundary portion of the floor, the wall, the ceiling, or the like, without detaching the base plate therefrom.

Abstract: Embodiments herein generally relate to polishing pads and method of forming polishing pads. In one embodiment, a polishing pad having a polishing surface that is configured to polish a surface of a substrate is provided. The polishing pad includes a polishing layer. At least a portion of the polishing layer comprises a continuous phase of polishing material featuring a plurality of first regions having a first pore-feature density and a plurality of second regions having a second pore-feature density that is different from the first pore-feature density. The plurality of first regions are distributed in a pattern in an X-Y plane of the polishing pad in a side-by-side arrangement with the plurality of second regions and individual portions or ones of the plurality of first regions are interposed between individual portions or ones of the plurality of second regions.

Abstract: A chemical mechanical polishing system includes a steam generator with a heating element to apply heat to a vessel to generate steam, an opening to deliver steam onto a polishing pad, a first valve in a fluid line between the opening and the vessel, a sensor to monitor a steam parameter, and a control system. The control system causes the valve to open and close in accordance with a steam delivery schedule in a recipe, receive a measured value for the steam parameter from the sensor, receive a target value for the steam parameter, and perform a proportional integral derivative control algorithm with the target value and measured value as inputs so as to control the first valve and/or a second pressure release valve and/or the heating element such that the measured value reaches the target value substantially just before the valve is opened according to the steam delivery schedule.

Abstract: An autonomous cleaning robot includes a drive system to move the autonomous cleaning robot about a floor surface in a space, a cleaning system to clean a floor surface in the space as the drive system moves the autonomous cleaning robot about the floor surface, and a controller configured to execute instructions to perform one or more operations.

Abstract: A grinding apparatus includes a chuck table that holds a workpiece through a protective tape, where the protective tape is attached to one surface of an annular frame so as to cover an opening of the annular frame and the workpiece is attached to the protective tape on an inner side of an inner circumferential edge of the opening of the annular frame; a grinding unit for grinding the workpiece; and a frame cleaning unit that cleans the other surface located on a side opposite to the one surface of the annular frame obtained after grinding of the workpiece, and wherein the frame cleaning unit has either: (i) a first cleaning member configured and arranged for making contact with the other surface of the annular frame and having flexibility, or (ii) a second cleaning member that jets at least either gas or liquid from above the other surface of the annular frame.

Abstract: A ratchet wrench handle includes an operation piece which is composed of two partial members including a claw member and a receiving member. The ratchet wrench handle is configured such that, when positive rotation-aimed operation teeth of the claw member are engaged with ratchet teeth of a rotation member, a wedge effect produced by the positive rotation-aimed operation teeth of the claw member and a positive rotation-aimed sloping face of the claw member is configured to make the rotation member stop rotation, which allows an adapter to be rotated in a positive direction.

Abstract: A paint-line hook for vehicle shocks includes a tube, an eye fixed to the tube, and a bracket fixed to the tube below the eye. The tube has a bottom end and a bore extending through the bottom end. The bracket defines a channel configured to engage a mount of a vehicle shock. A latch is rotatably supported by the tube. The tube includes a slot in communication with the bore. The latch extends through the slot and has a handle exterior to the slot and an end positioned to engage a threaded shaft of a vehicle shock in the bore. A vehicle shock may be retained in the tube and the tube acts as a paint shield during paint application to the vehicle shock.