Abstract: A Block-Type structured diamond grinding wheel with adaptive supply of instantaneous Cooling, includes a grinding wheel substrate and several grinding wheel units, each including an execution mechanism, a push mechanism, and an instantaneous Cooling mechanism. Various structured patterns are provided on an upper surface of the grinding unit in the execution mechanism, and a heat sink is disposed at a lower surface. During operation, a tangential grinding force generated by the grinding unit and a workpiece presses a sprayer to spray nano fluid into an operating region, to implement instantaneous Cooling of grinding wheel. When wear occurs in a grinding unit of a grinding wheel, a corresponding grinding unit may be replaced to extend the service life of the grinding wheel, and production costs are reduced. A special surface structure of the grinding unit further enhances a cooling effect, thereby improving a surface quality of a workpiece.

Abstract: A floor cleaning machine with a base, which has a driven cleaning element, and an operating bar that is pivotably attached to the base via a joint and extends between a proximal end and an actuating end. The joint includes a bellows, which is coupled at its opposite ends to the base and the operating bar, a first supporting element, which is arranged inside the bellows and is attached to and points away from the base, and a second supporting element, which is arranged inside the bellows and is attached to and points away from the proximal end of the operating bar. A free end of one of the first and second supporting elements has a projection, while a free end of the other of the first and second supporting elements has a receiving recess that receives the projection and guides it for pivoting movement.

Abstract: A vacuum cleaner includes a body, a suction source disposed in the body, a separator, and a post-motor filter. The body extends along a longitudinal axis between a front end and a rear end. A fluid flow path extends from a suction inlet to an air outlet. The suction source is configured to draw air and debris through the suction inlet along the fluid flow path. The suction source has a suction source inlet and a suction source outlet. The post-motor filter is disposed in the fluid flow path between the suction source outlet and the air outlet. The post-motor filter forms an aperture extending along the longitudinal axis. The post-motor filter is forward of the suction source. A first passageway extends from the separator to the suction source inlet. The first passageway extends through the aperture of the post-motor filter.

Abstract: Provided are a polishing pad provided with a structural feature capable of maximizing the leakage prevention effect, the polishing pad including: a polishing layer including a first surface which is a polishing surface and a second surface which is an opposite surface thereof, and including a first through hole passing through the first surface and the second surface; a window disposed in the first through hole; and a support layer disposed at the second surface of the polishing layer.

Abstract: A holding surface is formed by an inclined surface formed from the upper edge of a flange of a disk-shaped processing block to a workpiece portion. The processing block is accommodated in an annular holding member, a pressing-side holding member is advanced with respect to an accommodating side holding member, and the facing peripheral edge of the pressing side holding member is brought into contact with the holding surface. Since the facing peripheral edge abuts on a circle centered around the axis of the holding surface formed by a conical side surface, the axis of the annular holding member and the axis of the processing block coincide with each other in a processing apparatus, and the processing block is set at a predetermined position.

Abstract: A powered ratchet tool includes a housing, an output member having a toothed surface, and a drive mechanism for driving the output member. The drive mechanism includes a yoke in which the output member is arranged. A first pawl is in the yoke and is biased toward the toothed surface of the output member and a second pawl is in the yoke and is biased toward the toothed surface of the output member. A selection ring having a circumferential wall is arranged between the yoke and the toothed surface of the output member. The circumferential wall has a first window and a second window and the selection ring is moveable between a first position and a second position. The selection ring also includes a tab extending radially outward from the circumferential wall and the housing for moving the selection ring between the first and second positions.

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 slurry supply device includes; a slurry distribution part configured to dispense slurry, and a support part connected to the slurry distribution part and configured to support the slurry distribution part. The slurry distribution part includes; a guide bar including a slot extending in a first direction, a distribution bar inserted into the slot and including a distribution channel extending in the first direction, the distribution channel being recessed upwardly from a bottom surface of the distribution bar, and a slurry delivery member configured to deliver slurry to the distribution channel.

Abstract: A mobile cleaner includes a body and a sweep module. The body has an installation space within the body and an insertion opening exposed to the underside of the body. The sweep module is detachably assembled to the installation space through the insertion hole. The sweep module includes a dust housing and an agitator. The dust housing includes a collection space for collecting the foreign material from the surface and a storage space where the foreign material is stored. The agitator is rotatably assembled to the dust housing and is configured to direct the foreign material from the surface to the collection space.

Abstract: The subject of the invention relates to a tool for manipulating a plurality of plugs, taking the form of a comb (1) comprising: a body (7) provided with a row of teeth (4) having pointed distal portions (4p) spaced apart in a linear direction in order to engage with the cavities of the plugs; a system for separating the plugs from the teeth (4) that comprises a slide returned elastically and guided to slide with respect to the body (7) in a direction parallel to the direction of extension of the teeth, the slide being provided with the fingers of the comb, which are movable by sliding between the teeth (4), and a control (11a) accessible from a first portion (1a) of the comb and which, when pressed to move translationally, causes the fingers of the comb to slide in the direction of the pointed distal portions (4p) in order to eject the plugs from the teeth (4).

Abstract: Applicator devices and methods for dispensing solid and liquid materials therefrom are disclosed. The applicator devices provide for application of a wide variety of liquid and solid materials from a hand-held device in combination with a buffing element. The devices generally include a top portion that forms a housing and a bottom portion that defines a buffing element. The top portion incudes an interior side that defines an inner cavity configured to contain the liquid or solid material and an exterior side having at least a portion configured to be grasped by a user's hand. Attachment between the housing and the buffing element may be releasable so that various interchangeable buffing elements may be used in combination with the liquid or solid material contained in the housing of the device.

Abstract: A vacuum blocking piece for vacuum blocking a lens blank has a support element with an upper part and a lower part. The lower part can engage with a clamping device for clamping the vacuum blocking piece. The vacuum blocking piece further includes a fluid-permeable blank contacting element. An upper surface of the blank contacting element, which is configured to hold the lens blank, is made of an elastic material. The lower surface contacts the upper part of the support element. The vacuum blocking piece fixes the lens blank to the upper surface of the blank contacting element by applying a vacuum within the blocking piece to provide suction through essentially the entire upper surface of the blank contacting element to fix the lens blank to the upper surface of the blank contacting element and to fix the blank contacting element to the upper part of the support element.

Abstract: An ultrasonic impact grinding assembly includes a vessel having an open top disposed opposite a base and configured to contain an abrasive slurry, at least one mixing mechanism disposed in the vessel, a fixture disposed on the base of the vessel and configured to retain a workpiece for ultrasonic impact grinding within the abrasive slurry, and an ultrasonic impact grinding machine having a tool tip disposed to contact the abrasive slurry in the vessel during an ultrasonic impact grinding operation.

Abstract: A device and method of radially collapsing a medical device is disclosed. The device is in the form of an improved crimper which is capable of crimping a medical device. The crimper includes without limitation one or more of, a base plate, a stopper, two side plates, two housing plates with a handle, a plurality of jaws, two guide plates, at least one gear ring and a plurality of gear pins. The jaws, when assembled, collectively form an iris opening. The assembly of the crimper has a central opening through which the iris opening can be accessed. The device to be crimped is introduced in the central opening and held within the iris opening. The crimping is achieved by reducing the size of the iris opening (by moving the jaws simultaneously with respect to each other in synchronized manner) which in turn reduces the diameter of the prosthetic device.

Abstract: A vacuum cleaner comprises a housing having a longitudinal axis. A motor-fan assembly is mounted in the housing and arranged to generate an airflow along an airflow path from a dirty air inlet to an air exhaust. A retractable nozzle defines the dirty air inlet and is moveably mounted on the housing. At least a portion of the retractable nozzle is arranged to move between a retracted configuration within the housing and a deployed configuration outside the housing. The portion of the retractable nozzle in the retracted configuration is aligned in a direction along the longitudinal axis and the portion of the retractable nozzle in the deployed configuration is aligned in a direction across the longitudinal axis.

Abstract: A wafer grinding parameter optimization method and an electronic device are provided. The method includes the following. A natural frequency of a grinding wheel spindle of wafer processing equipment is obtained, and a grinding stability lobe diagram is generated accordingly. A grinding speed is selected based on a speed range of the grinding wheel spindle. Multiple grinding parameter combinations are determined based on the grinding speed. Multiple grinding simulation result combinations corresponding to the grinding parameter combinations are generated. A specific grinding parameter combination is selected based on each of the grinding simulation result combinations, and the wafer processing equipment is set accordingly.

Abstract: A ratchet keychain attachment includes a body and a ratcheting area in the body. The ratchet keychain attachment further includes a bit holder, the bit holder pivotally mounted in the body. The ratchet keychain attachment further includes a bit, removably located in the bit holder, the bit holder having a first position where the bit is held in a non-removable position in the bit holder and a second position where the bit is in a removable position.

Abstract: A surface cleaning apparatus includes a base assembly with a suction nozzle and at least one wheel. A hand-held portion has a hand grip, a recovery container, and a suction source in fluid communication with the suction nozzle and the recovery container and configured for generating a working airstream. A wand is operably coupled between the base assembly and the hand-held portion and defines at least a portion of a working air path extending from the suction nozzle to an air outlet in the hand-held portion and including the suction source.

Abstract: An abrasive flow machine is indicated, having a media drive device which is adapted to move the abrasive medium over a surface of a workpiece and/or through the opening of the workpiece in a flow direction, having a workpiece holder for mounting the workpiece with two parts adapted to be positioned on opposite sides of the workpiece, having a structure-borne sound sensor for measuring structure-borne sound generated in a workpiece when the latter is machined with an abrasive medium, and having an evaluation unit which is adapted to infer a cutting power of the abrasive medium and/or a rate of material removal on the workpiece based on an integrated measurand of the root mean square of the structure-borne sound measured by the structure-borne sound sensor over time. Further indicated are a method of ascertaining a material removal on a workpiece and a method of determining the cutting power of an abrasive medium.

Abstract: A vacuum cleaning device comprises a housing having a dirty air inlet and a clean air outlet. An airflow path extends between the dirty air inlet and the clean air outlet. A dust container is mounted to the housing wherein the airflow path goes through the dust container. A motor fan assembly is mounted in the housing and is configured to create an air flow along the airflow path in a blow mode and a suction mode. A controller is configured to control the motor fan assembly in the blow mode and the suction mode. The controller is configured to control the motor fan assembly to pulse the motor fan assembly at first fan speed when in the blow mode.