Abstract: Disclosed is a substrate treating apparatus for performing a predetermined treatment on a substrate. The apparatus includes: a holding mechanism including a plurality of support pins configured to rotate between a holding position and a delivery position, a first magnetic part configured to rotate the support pins individually between the holding position and the delivery position by switching surrounding magnetic poles, and a second magnetic part configured to rotate the support pins individually to the holding position by constantly applying a magnetic field to the first magnetic part; and a switching mechanism configured to apply no magnetic field of a third magnetic part to the first magnetic part normally and apply a magnetic field of the third magnetic part to the first magnetic part to rotate the support pins individually to the delivery position only when the substrate is delivered.

Abstract: A sharpening device, components thereof, and associated methods. The sharpening device includes a sharpening assembly and a housing. The sharpening assembly is selectively receivable in the housing in a stowed configuration and supportable by the housing in an operational configuration to support the sharpening assembly for sharpening a blade. The sharpening assembly can include first and second arms having respective abrasive sharpening surfaces pivotable away from each other about a pivot connection.

Abstract: A hand vacuum cleaner has an air flow path extending from a dirty air inlet to a clean air outlet. An air treatment member and suction motor are positioned in the air flow path. The air treatment member is provided at the front end of the hand vacuum cleaner and has an air outlet provided at the rear end of the air treatment member. A pre-motor filter housing is positioned rearward of the air outlet of the air treatment member. A hand vacuum axis extends between the front end and the rear end of the hand vacuum cleaner. When the hand vacuum axis is horizontal, a portion of the air treatment member underlies the pre-motor filter housing. A pistol grip handle has an upper end that is positioned below the portion air treatment member that underlies the pre-motor filter housing.

Abstract: A cleaning apparatus includes a housing, a suction assembly, and a fluid delivery system. A wand is coupled to the housing via an accessory hose. The wand includes a trigger and a fluid outlet. Actuation of the trigger provides fluid communication between the fluid delivery system and the fluid outlet for releasing a liquid. A vacuum tool is coupled to the wand. The vacuum tool includes a support body that defines an open end for receiving the wand and includes a guard that extends beyond the open end to extend over the trigger to prevent the actuation of the trigger. An intermediate recovery tank is coupled to the support body and defines an inlet in fluid communication with the suction assembly. A separator is disposed within the intermediate recovery tank to retain the debris within the interior and allow airflow to be directed through the separator to the accessory hose.

Abstract: A hand vacuum cleaner has a cyclone unit, a front electrical connector and electrical conductors that extend from the front electrical connector to a source of power. The electrical conducts extend along a portion of a wall of the cyclone unit. When a cleaning tool is connected to the hand vacuum cleaner, the cleaning tool is connected in air flow communication with the dirty air inlet and the cleaning tool is electrically connected to the front electrical connector.

Abstract: A grinding apparatus and a method for manufacturing a semiconductor device using the same are provided. A grinding apparatus includes a chuck unit configured to receive a substrate, a grinding unit on a part of the chuck unit and configured to grind the substrate, and a dressing unit under a part of the grinding unit adjacent to the chuck unit and including a dressing board configured to dress the grinding unit and magnets under the dressing board.

Abstract: A vacuum tool configured to be removably coupled to hose or wand of a vacuum includes a body including a first end, a second end, and a first longitudinal axis extending between the first end and the second end. The vacuum tool also includes a head coupled to the first end of the body, a connection portion coupled to the second end of the body and configured to couple the body to a hose or wand of a vacuum cleaner, and a brush coupled to the head. The brush includes an elongate support defining a second axis perpendicular to the longitudinal axis of the body and configured to couple the brush to the head, and a plurality of bristles positioned on the elongate support.

Abstract: A pool related platform that may include (i) a drive mechanism for moving the pool related platform; (ii) a housing that has a first fluid opening and a second fluid opening; (iii) a filtering unit that comprises a filtering element; (iv) a fluid flow mechanism for inducing a flow of fluid through the filtering unit in a first direction during a filtering process, and for inducing a flow of the fluid through the filtering element at another direction during a backwash process; (v) an entrapment cell; and (vi) a flow control unit that comprises a flow control element and an inlet that is maintained open during the filtering process and the backwash process; wherein the flow control unit is configured to allow debris and fluid from the filtering unit to enter the entrapment cell, and is configured to substantially prevent a flow of fluid and debris from the entrapment cell to the filtering unit.

Abstract: A pendulum rocker brush for a vehicle wash system is provided including a rocker arm, a rotatable coupler, a motor assembly, and a rocker brush head. Both the rocker brush head and motor assembly can be suspended from the coupler, freely dangling therefrom under the force of gravity, in an unbiased manner. The rocker brush head can pivot relative to the rocker arm through a swing angle between 5 and 45 degrees relative to vertical. The rotatable coupler and rocker brush head can be disposed at a pivoting angle between 10 and 45 degrees relative to a conveyor direction which a vehicle follows. When the rocker brush head encounters an opposing force above a movement threshold from the vehicle, the rocker brush head and the motor assembly can swing outward to the swing angle and at the pivoting angle so the vehicle is not damaged.

Abstract: A platen apparatus includes a housing having multiple vents; a turbine wheel rotatably attached to a rear section of the housing, the wheel having a circular body and a circumferential face without a coating thereon, the body includes vanes, each vane being a hole which extends through the body from one side to an opposing side of the wheel; a support belt engaged in tension about the circumferential face of the wheel; and the rear section of the housing is at least partially open so that a portion of the circumferential face of the wheel is exposed outside the housing. The vanes are arranged adjacent to the vents, and each provide a flow channel through which air is drawn in from a first side of the housing through the wheel body and released at a second, opposite side of the housing.

Abstract: A vacuum tool that is removably couplable to a hose or wand of a vacuum includes a body, funnel, gasket, and connection portion. The body includes a first end, second end, and wall extending between the first and second ends. The wall forms a work surface suction opening and a cavity in fluid communication with each other. The funnel includes a proximal skirt portion coupled to the first end and a distal skirt portion integrally formed with the proximal skirt portion. The proximal skirt portion has an aperture in fluid communication with the cavity. The distal skirt portion extends from the proximal skirt portion in a direction away from the first and second ends. The gasket is positioned along a perimeter of the work surface suction opening. The connection portion is coupled to the second end and includes a conduit in fluid communication with the cavity and an outlet.

Abstract: A vacuum tool is removably couplable to a hose or wand of a vacuum. The vacuum tool includes a frustoconical head portion, a base portion, and fasteners. The frustoconical head portion includes a distal end of the vacuum tool, an interior support body, and an outer layer. The distal end has a central inlet opening and an annular distal face. The interior support body has a central conduit and fastener receiving recesses. The outer layer includes rubber and forms at least a portion of the annular distal face and an entirety of an outer lateral surface of the frustoconical head portion. The base portion includes a flared portion and a tubular portion. The flared portion has a maximum outer diameter and fastener access openings. The tubular portion has an outer diameter, a central conduit, and a proximal end of the vacuum tool.

Abstract: A flexible head joint for a tool, such as a motorized ratcheting-type tool. The flexible joint also allows an output mechanism of the tool, such as a ratchet head, to be disposed at an angle with respect to a housing to the tool, which houses a motor. For example, the first shaft is pivotably coupled to a first connector, which may have a tongue shaped portion. The second shaft is pivotably coupled to a second connector, which may have a slotted portion adapted to receive the tongue portion. This provides two pivot points that have parallel axes.

Abstract: A handheld extraction cleaner system includes a wet cleaning head including a wet suction nozzle, a dry cleaning head including a dry suction nozzle. A handheld base includes a modular receiver configured to interchangeably couple to the wet cleaning head and the dry cleaning head. A suction source is configured to generate a suction air stream through the wet suction nozzle when the wet cleaning head is coupled to the modular receiver and through the dry suction nozzle when the dry cleaning head is coupled to the modular receiver. A fluid delivery system includes a fluid distributor configured to dispense a cleaning solution on a surface to be cleaned, where at least one of the handheld base and the dry cleaning head is configured to at least partially prevent the fluid delivery system from dispensing the cleaning solution when the dry cleaning head is coupled to the modular receiver.

Abstract: The present disclosure provides a vacuum attachment tool configured to be attached to a vacuum hose. The vacuum attachment tool includes a hollow body extending between a first opening configured to be coupled to a vacuum hose and a second opening fluidly coupled with the first opening. The vacuum attachment tool also includes a scrapper portion is disposed on the hollow body and protrudes outward near the second opening. The scrapper portion includes a v-shape that is configured to correspond to a chamfered ground crevice for scraping debris out of the chamfered ground crevice.

Abstract: A cleaning apparatus is described. The cleaning apparatus includes a support member and a cleaning head. The support member includes a first portion having a length, a first end, an opposing second end and a handle disposed at the first end; a second portion having a first transition at the second end of the first portion and a second transition spaced from the first transition; a first support and a second support joining the first and the second transitions; and a liquid management system disposed, at least in part, between the first and second transitions. The liquid management system comprises a reservoir receiver. The cleaning head is moveably attached to the second transition. The support member exhibits a longitudinal angle of six degrees or less with respect to a horizontal plane. The cleaning apparatus exhibits a vertical height of less than 110 mm.

Abstract: A mobile cleaning robot can include a body, a pad assembly, and a pad drive system. The pad assembly can be connected to the body and can be movable relative thereto. The pad drive system can be connected to the body and can be operable to move the pad assembly relative to the body between a stored position and a cleaning position.

Abstract: A wet-and-dry floor brush for a vacuum cleaner, including a floor brush body including at least one dust suction port at a bottom of the floor brush body, and a wet mopping device including a base plate for mounting a mop cloth, and a liquid supply tank located on an upper side of the base plate, the base plate including liquid discharge holes, and the liquid supply tank includes an air inlet in communication with the outside. The bottom of the liquid supply tank has a liquid outlet in fluid communication with liquid discharge holes. The liquid outlet includes a valve for opening and closing the liquid outlet, and the liquid supply tank includes an external action member, the action member and valve configured to allow the transmission of motion to open or close the liquid outlet by operating the action member.

Abstract: A pneumatic tube or hose having a longitudinal axis along its longitudinal extension and two ends, each provided with a respective socket adapted for a releasable airtight connection to a first pneumatic port of a vacuum generation unit or a second pneumatic port of a vacuum utilization device. The socket includes a magnetic element adapted for interaction with a corresponding magnetic element provided in the vacuum generation unit and/or in the vacuum utilization device in order to secure the socket to the first or second pneumatic port by means of a magnetic force. The socket has an end surface facing the first or second pneumatic port when the socket is secured to the first or second pneumatic port, the end surface having a ramp shape continuously rising from a starting region along its circumference to an end region.

Abstract: A duct cleaning system includes a flexible vacuum hose having a proximal end configured to couple to a vacuum source, a flexible drive shaft having a proximal end configured to couple to a rotating motor, and a distal end configured to couple to a cleaning attachment, and a flexible camera line having a proximal end configured to couple to a power source and a distal end provided with a camera. The distal ends of the vacuum hose, the drive shaft, and the camera line configured to be fed into and moved along a duct to be cleaned, with the vacuum hose delivering a vacuum to the duct to suction up and collect particles and debris in the vacuum source, the drive shaft and cleaning attachment rotating within the duct to be cleaned to loosen particles and debris, and the camera line providing visualization of the duct during the cleaning process.