Abstract: A container opening tool is provided, including: a main body, a first engaging portion, a second engaging portion, a third engaging portion and a fourth engaging portion. The main body defines a longitudinal direction and includes a first end portion and a second end portion disposed on two sides of the main body. The first engaging portion is disposed on the first end portion. The second engaging portion is disposed on the first end portion and includes a first mouth opening in a first direction lateral to the longitudinal direction. The third engaging portion is disposed on the first end portion and includes a second mouth opening in a second direction lateral to the first direction and the longitudinal direction. The fourth engaging portion is disposed on the second end portion and includes a through hole extending in the first direction.

Abstract: A hand vacuum cleaner and a mounting structure for the hand vacuum cleaner. The mounting structure has a base which is free standing on a floor and an upper portion comprising an air flow duct and a mounting apparatus provided at an upper end of the upper portion. The mounting apparatus has first and second laterally opposed first engagement members. The hand vacuum cleaner has first and second laterally opposed second engagement members. The hand vacuum cleaner is downwardly removably mountable to the mounting apparatus and the first and second engagement members are slideably interengageable. As the hand vacuum cleaner is moved downwardly to be mounted to the mounting apparatus, the first and second engagement members slideably interengage.

Abstract: A gear-grinding multilayer grindstone includes a rough machining portion and a finish machining portion that are disposed adjacent to each other on a rotational axis. The rough machining portion includes a first core and a rough machining grindstone that is held on the first core. The finish machining portion includes a second core that is adjacent to the first core, and a finish machining grindstone that is held on the second core. The first core and the second core are fixed to each other, without the rough machining grindstone and the finish machining grindstone being fixed at least at outer peripheral portions thereof to each other.

Abstract: An apparatus for grinding a blade comprising a plurality of teeth and setting the blade by providing an offset to the plurality of teeth, a method of grinding the blade, and a method of assembling the apparatus are provided. The apparatus includes a grinding wheel for grinding the blade, a plurality of clamping jaws for securely holding the blade as the grinding wheel is moved along a profile thereof responsive to an actuation input, an input shaft for receiving the actuation input, first and second bending cams configured to be actuated by a camshaft, and first and second levers configured to be bent by the first and second bending cams, respectively, and further configured to pivot about respective pivot points to provide the offset by selectively setting each tooth inwards or outwards according to a predefined pattern.

Abstract: The present invention relates to a tool holder for a processing tool for processing optical workpieces with a holder head for receiving a processing tool and a holder body for fastening the tool holder to a tool spindle. According to the invention, it is provided that the holder head is annular with an annular rim and that at least two holding elements are arranged on the annular rim. The present invention relates further to a processing tool for processing optical workpieces having receiving openings in its base body.

Abstract: A carrier head for a polishing system includes a housing, a flexible membrane, a first plurality of pressure supply lines, a second plurality of pressure supply lines, and a valve assembly. The flexible membrane defines a multiplicity of independently pressurizable chambers. The valve assembly has a multiplicity of valves with each respective valve of the multiplicity of valves coupled to a respective pressure chamber from the multiplicity of independently pressurizable chambers. Each respective valve is configured to selectively couple the respective pressure chamber to one pressure supply line from a pair of pressure supply lines that include a pressure supply line from the first plurality of pressure supply lines and a pressure supply line from the second plurality of pressure supply lines.

Abstract: The present disclosure provides improved rail grinding tools. Precision-shaped grains (PSGs), such as PSGs manufactured by 3M® company, provide significant performance improvement in resin-bond and vitrified bond grinding wheels. The use of PSG improves the performance of portable bonded wheels and precision grinding wheels, such as resin bond roll grinding wheels, flute grinding wheels, vitrified gear grinding wheels, cylindrical grinding wheels, and surface grinding wheels. The formation and composition of (e.g., monolithic) and multiple-layer PSG grinding tools described herein provides improved performance of rail grinding tools.

Abstract: A coated abrasive belt (100) includes a belt backing (110) and an abrasive layer disposed thereon. The abrasive layer comprises abrasive elements (160) secured to at least a portion of a major surface of the belt backing (110) by at least one binder material. The abrasive elements are disposed at contiguous intersections of horizontal (192) and vertical lines (194) of a rectangular grid pattern. Each abrasive element has at least two triangular abrasive platelets (130), each having respective top and bottom surfaces connected to each other, and separated by, three sidewalls. On a respective basis, one sidewall of the triangular abrasive platelets is disposed facing and proximate to the belt backing. A first portion of the abrasive elements is arranged in alternating first rows (16) wherein the triangular abrasive platelets are disposed lengthwise aligned with the vertical lines (194).

Abstract: A vacuum cleaner may include a body having a handle end and an attachment end, the attachment end being opposite the handle end along a longitudinal axis of the body, a dust cup disposed between the handle end and the attachment end, a suction motor disposed between the handle end and the attachment end, a body latch configured to releasably engage an accessory, and a body toggle configured to cause the body latch to transition between a releasing position and a retaining position, the body toggle being positioned closer to the handle end than the attachment end.

Abstract: A carrying device is provided. The carrying device includes a stand, an upper clamp connected to the stand, a lower clamp assembled to the stand, a manipulation mechanism assembled to the stand and interlinked with the lower clamp, and a supporting column assembled to the lower clamp. The manipulation mechanism can drive the lower clamp to move relative to the upper clamp, and the upper clamp and the lower clamp jointly define a receiving space therebetween. The supporting column is movable relative to the lower clamp, so that the carrying device can be adjusted in a first clamping mode or a second clamping mode. When the carrying device is in the first clamping mode, the supporting column is located in the receiving space and faces toward the upper clamp, so that the supporting column and the upper clamp can jointly clamp a plate part of a first structure.

Abstract: A brush head including a central portion centered respective to a rotation axis, an attachment feature configured to secure the brush head for rotation about the rotation axis, and a plurality of lobes. The plurality of lobes extend radially outwardly from the central portion and the rotation axis. At least one lobe extends along a curvilinear path, the curvilinear path extending through the central portion. The lobe has varying widths along the curvilinear path, the varying widths being perpendicular to the curvilinear path.

Abstract: A double-layer mop bucket for a flat mop comprises an outer bucket provided with a clean water area and a sewage area, an inner bucket arranged in the sewage area and capable of inserting the flat mop, and a cover body component removably mounted on the outer bucket, wherein a cleaning area and a scraping area which are connected are arranged in the inner bucket, a cleaning port connected with the cleaning area and a scraping port connected with the scraping area are arranged on the cover body component, a groove for limiting the flat mop to be inserted into the bottom is arranged at the bottom of the inner bucket, and a water guiding chute capable of guiding water scraped at the scraping port and the cleaning port to flow into the sewage area is arranged in the cover body component.

Abstract: A torque wrench with a profiled cam lock lever that is movable between locked and unlocked positions over an adjustment knob of the tool. The lock lever includes an off-center pivot pin and a decreasing radius on a cam profile of the lock lever (rounded corner that contacts a housing of the tool when the lock lever is moved between the locked and unlocked positions). The off-center pivot pin increases an amount of force applied to the adjustment knob when the lock lever is in the locked position to minimize and/or prevent unintentional movement of the adjustment knob. The cam profile reduces an amount of force or effort needed to operate the lock lever and decreases rapid release of the lock lever as over center action is reached.

Abstract: A central vacuum cleaning system includes an inlet valve mounted at various locations in a structure or RV and connected to the inlet end of a vacuum conduit. A section of hose is slidably mounted within the conduit and extends from the inlet valve for cleaning an adjacent area. The hose includes a hose plug of cuff connected with a distal end of the hose. The hose plug includes an annular channel and a cam to move a pin or button on the valve. The hose plug or cuff may also include a first seal and a second seal.

Abstract: A composite abrasive paper has at least three surfaces which polished and ground to improve the utilization rate of the abrasive paper and reduce the cost of grinding and polishing abrasive tools. The abrasive paper comprises a first abrasive comprising a first substrate, a first stereo particle layer provided on a surface of the first substrate, a flexible microsphere layer provided on a back surface of the first substrate; a second abrasive comprising a second substrate, a second stereo particle layer provided on surface of the second substrate, a third stereo particle layer provided on a back surface of the first substrate; the first and second abrasive are connected at an edge to form a connection part, the middle non-connection part of the first substrate and the second substrate forms a sealed cavity, the third stereo particle layer is provided opposite to the flexible microsphere layer in the sealed cavity.

Abstract: Machine (1) for processing slabs (L) comprising a device (14) for transporting the slabs (L) between two zones, at least one of which is a machining zone along a feeding direction (X), means (16, 17) for supporting and clamping the slabs during machining, said means being designed to clamp the slabs (L) in a machining position, at least one tool (4) for machining the slabs which is mounted on a spindle, the at least one tool (4) being operative in the machining zone. The machine (1) comprises means (50) for moving the transporting device (14), configured to move the transporting device (14) from a working position corresponding substantially to the position for machining the slabs (L) into a position spaced at least vertically from the working position, and vice versa; the transporting device (14) is a conveyor belt.

Abstract: This application provides a pool robot including a housing, a filtering box, and a water baffle plate. The housing is provided with a first water outlet hole and an accommodation cavity. The filtering box is disposed in the accommodation cavity. A second water outlet hole is disposed on a side wall of the accommodation cavity. The water baffle plate is connected to a side of the side wall of the accommodation cavity and provided over the second water outlet hole, where the side of the side wall is away from the filtering box. When the pool robot is located in water, the water baffle plate closes the second water outlet hole. When the pool robot leaves the water, the water baffle plate is opened, and water in the filtering box is drained from the housing sequentially through the second water outlet hole and the first water outlet hole.

Abstract: Disclosed is a robot system including: a robot cleaner configured to perform wet cleaning in a cleaning zone; a server configured to communicate with the robot cleaner and perform control of the robot cleaner; and a user terminal configured to be in association with the robot cleaner, and control the robot cleaner as an application for the control of the robot cleaner is activated, wherein the robot cleaner includes: a main body configured to form an outer shape; a pair of rotary mop modules configured to be rotatably installed in the main body, move the main body while rotating, and have a mop cloth attached to a rotating plate of a lower portion; a drive motor configured to rotate the pair of rotary mop modules; a mop detecting unit configured to detect an error state of the mop cloth attached to the rotating plate and output a detection signal; and a controller configured to determine the error state of the mop cloth according to the detection signal from the mop detecting unit, and control driving of the

Abstract: A ratchet wrench comprises: a handle; a first member having an annular surface provided thereon with a plurality of teeth parallel to an axial direction thereof; a second member configured to rotate circumferentially with respect to the annular surface, the second member having at least two recesses arranged circumferentially around it; and at least two first drive transmission members disposed in the respective recesses of the second member, each of the first drive transmission members comprising at least one ratchet tooth, the first drive transmission members configured to be engaged with the teeth to transmit movement in a first direction between the first member and the second member, wherein each of the first drive transmission members is in a different engagement configuration with the teeth, wherein one of the first member and the second member is coupled to the handle and configured to be driven by the handle to rotate.

Abstract: A tool includes a prime mover, switch, operation member for the switch, first accessory, second accessory, third intermediate member moved in conjunction with displacement of the operation member, first intermediate member configured to be displaced from a first blocking position of blocking a displacement route of the third intermediate member to a first non-blocking position of not blocking the displacement route by attachment of the first accessory, and second intermediate member configured to be displaced from a second blocking position of blocking the displacement route to a second non-blocking position of not blocking the displacement route by attachment of the second accessory. Only when the first intermediate member is located at the first non-blocking position and the second intermediate member is located at the second non-blocking position, the third intermediate member is permitted to be displaced so that the operation member is permitted to be displaced to the ON position.