Abstract: A chemical mechanical polishing head includes a base assembly that includes at least one component formed of a composite plastic having a tensile modulus approximately equal to or greater than aluminum, a retaining ring secured to the base assembly, and a flexible membrane secured to the base assembly to form a pressurizable chamber between the base assembly and an upper surface of the flexible membrane. A lower surface of the flexible membrane provides a substrate mounting surface.

Abstract: A vacuum cleaner is provided. The vacuum cleaner may include a suction nozzle coupled to a body and adapted to move along a surface to be cleaned, a guide pipe to guide foreign substances including dust suctioned through in the suction nozzle, a separation member to separate the foreign substances including dust guided along the guide pipe from air according to a principle of cyclonic separation, a collection container to accommodate the foreign substances including dust separated in the separation member, a binder supply device connected to the guide pipe to supply a binder to the separation member, the binder being in a shape of solid granules, and a heat supply device to supply heat to the collection container. The binder may bind with the dust due to heat supplied from the heat supply device. Thus, a larger amount of foreign substances including dust may be accumulated in the collection container, and therefore, the collection container may be effectively used.

Abstract: A tire holding member for a tire testing machine includes: a bottom rim, which is attached to a bottom spindle that is able to rotate around a central axis in the vertical direction; a top rim, which is disposed above the bottom spindle and which is attached to the bottom end of a top spindle that is able to rotate around the central axis with the bottom spindle; and a convex-sided member. One of the bottom rim or the top rim has a hole with the central axis at the center thereof. The other of the bottom rim or the top rim has an end surface facing the one rim. The bottom rim and the top rim are positioned by each other in a state in which the center of each coincides at the central axis due to the protruding section and the hole engaging with each other.

Abstract: An adjustable wrench includes a frame and a movable jaw. The frame includes a handle, a fixed jaw, a guiding slot, a hole, and a holding portion. The guiding slot is formed between the handle and the fixed jaw. The hole communicates with the guiding slot. An adjusting screw is rotatably engaged in the hole. The movable jaw includes a guiding portion slidably engaged in the guiding slot. A supporting portion and an adjusting portion are formed at the bottom side of the guiding portion. The supporting portion abuts against the holding portion, and the adjusting portion is engaged with the adjusting screw.

Abstract: A base assembly for coupling an end effector to a structure includes a first side and an opposite second side. The first side configured to couple to the end effector. The base assembly also includes at least one cavity disposed on the second side, and at least one pneumatic generator coupled in flow communication with the at least one cavity. The at least one pneumatic generator is operable in a suction mode and a blower mode. The second side having the at least one cavity is securely coupleable to a surface of the structure via a vacuum force induced by the at least one pneumatic generator in the suction mode, and the second side having the at least one cavity is movable substantially frictionlessly across the surface via an air cushion induced by the at least one pneumatic generator in the blower mode.

Abstract: Embodiments include a mechanism for leveling or providing pad assistance to surface maintenance machines. The surface maintenance machine can include a frame, a plurality of wheels, a head assembly, and a head adjustment mechanism. The head adjustment mechanism can be positioned in line with and operatively coupled to a first portion of the head assembly, such that the first portion of the head assembly can be moved towards or away from the surface by adjusting the position of a fastener in a slot. Such embodiments are useful for leveling the head assembly to maintain an even degree of burnishing or providing pad assistance. Embodiments include methods of using such mechanisms for leveling or providing pad assist to surface maintenance machines.

Abstract: The car cleaner includes a collecting part having a collecting space to collect dust or foreign substances; a suction/discharge pipe of which one side is coupled with the collecting part to be in communication therewith, and which has a suction and spray nozzle configured to transfer the dust or the foreign substances in the car to the collecting part; a vacuum suction unit having a sucking part connected with the collecting part and a discharging part configured to discharge sucked air; an external air suction switching unit installed between the collecting part and the sucking part of the vacuum suction unit so that air in the collecting part or external air is selectively sucked into the sucking part; and a suction/discharge switching unit provided so that air discharged through the discharging part is discharged through the suction/discharge pipe.

Abstract: A surface cleaning apparatus comprises an air flow path extending from a dirty air inlet to a clean air outlet and includes a suction motor. The surface cleaning apparatus may be battery powered and/or may have a power requirement of 200 Watts or less. A cyclone chamber is provided in the air flow path and has an air outlet which is covered by a screen. In one embodiment, there is an absence of a vortex finder. In another embodiment, a vortex finder that extends into the cyclone chamber less than the height of the cyclone inlet and optionally less than the height of the cyclone inlet may be provided.

Abstract: A vacuum cleaning appliance comprises a handheld vacuum cleaning device comprising a motor coupled to a fan for generating an air flow through a nozzle air inlet. It also comprises a support frame comprising: a cleaning head having a cleaning head air inlet; and an air outlet in fluid communication with the cleaning head air inlet, the air outlet configured to couple with the nozzle air inlet when the handheld vacuum cleaning device is secured to the support frame and to create an airflow path from the cleaning head air inlet to the nozzle air inlet. The air outlet is moveable with respect to the support frame into a first position in which the air outlet projects from the support frame when the handheld vacuum cleaning device is detached from the support frame.

Abstract: A vacuum cleaner to suction dust by applying vibration includes a motor, an eccentric load applied to a rotating shaft of the motor which when rotated by a rotation of the rotating shaft produces vibration force, a vibration plate to apply the vibration force to an object to be cleaned, and a vibration transfer member to transfer vibration force to the vibration plate.

Abstract: A multipurpose cleaning trowel is provided. The cleaning trowel includes a base having a first side, a second side, a flexible section, a blade section, and a mounting section positioned between the flexible section and the blade section. The cleaning trowel further includes a handling device removably secured to the first side of the base at the mounting section and a cleaning pad receiving region. A cleaning pad is removably secured to the base. The handling device is interchangeable between a fixed handle and a swivel base.

Abstract: A dust collector includes a first dust storing unit to collect dust firstly-separated from air by a first cyclone, a second dust storing unit to collect fine dust secondly-separated from the air by second cyclones located above the first cyclone, a lower cover part coupled to a first dust container to form a bottom surface of the first dust storing unit and the second dust storing unit, and rotatable about a hinge to simultaneously open the first and second dust storing units, such that the dust and the fine dust are simultaneously discharged, and a compression device rotatably connected to the lower cover part so as to rotate in a reciprocating manner to compress the dust collected in the first dust storing unit.

Abstract: A foldable flat mop is provided that has a pair of carrier plates, which define an unfolded position, a folded position with a minimum distance between the tips of the carrier plates, and a deflected position where the carrier plates are deflected towards one another to reduce the minimum distance between the tips. The foldable flat mop can include one or more biasing members that bias the carrier plates to an intermediate position between the folded and unfolded positions. The carrier plates can have a scissor-like arrangement with the tips of the carrier plates being on an opposite side of the centerline from that pivot axis of that carrier plate.

Abstract: A roller support structure is used during wire or cable installation for substantial labor savings during the wire or cable pulling process and for protection of the wire or cable. The wire or cable is pulled through a cable fitting by installing a roller support structure containing rollers onto the fitting. In some embodiments the rollers are removed from the cable fitting after a cable is pulled through the fitting. For efficient roller removal, the roller support structure has positioning and holding plate pairs. By moving the positioning plates relative to the holding plates, the rollers are held in place or dropped from channels in the holding plates. In another novel embodiment, a cable fitting slide plate structure is used to move a cable through a cable fitting. This structure includes a low friction inside bottom surface plane of arcuate shape for efficient movement of the cable through the fitting.

Abstract: A robot cleaner includes a body forming an external appearance of the robot cleaner, a body moving part provided to the body to move the body, a body driving unit to drive the body moving part, a dust collector to capture suctioned foreign substances and provided with a first chamber and a second chamber communicating with the first chamber, a suction generation unit to supply suction force to the dust collector, and a guide member to guide the foreign substances captured in the first chamber to the second chamber and to apply pressure to the foreign substances in the second chamber in order to compress the foreign substances.

Abstract: A self-propelled electric concrete saw having at least two electric motors. A first electric motor of the concrete saw is powered by an external power supply and can power both a saw blade and a drive system. A second electric motor of the concrete saw is powered by a rechargeable battery and can power the drive system. The concrete saw can be maneuvered by using the second electric motor with or without the concrete saw being connected to the external power supply.

Abstract: Provided is, among other things, an apparatus for holding a fastener, which includes: a main body structure; and a fastener holding member rotatably attached to the main body structure, such that the fastener holding member is capable of rotating relative to the main body structure around a rotation axis. The fastener holding member also includes a pair of notches on opposite sides of the rotation axis, which are sized and shaped to accommodate a fastener, such as a nail or a screw.

Abstract: A sand blaster is provided that includes an engine carried by an engine mounting plate. A frame is included and an engine support isolator engages the frame and carries the engine mounting plate. The engine support isolator has a stud that extends through a first coil and a stud guide that has a tapered inner surface. The stud extends through the stud guide. In other arrangements an air regulator that is adjustable is provided, and a nozzle that features reduced wear is provided.

Abstract: A method of manufacturing a silicon carbide substrate includes the steps of preparing an ingot of single crystal silicon carbide and obtaining a substrate by cutting the ingot. Then, in the step of obtaining a substrate, cutting proceeds in a direction ? in which an angle ? formed with respect to a <11-20> direction or a <1-100> direction of the ingot is 15°±5° in an orthogonal projection on a {0001} plane.

Abstract: A cleaning article. The cleaning article has a laminate construction. The cleaning article comprises a sheet and a hydrophilic gather strip element joined together at plural bonds. The gather strip element has plural layers superimposed upon one another, providing strips extending outwardly from the bonds. Different layers are differentially bonded, to provide a construction which allows the strips to advantageously present a dynamically changing area to the target surface during cleaning, under normal usage conditions. By changing the surface area, more liquids, and associated debris, can be cleaned from the target surface.