1252results about "Grinding/polishing hand tools" patented technology

A skin abrader for a biomedical electrode is disclosed wherein the abrader has a geometrically structured surface abrasive selected to provide sufficient abrasive effect to easily remove a portion of the stratum corneum of mammalian skin with minimal skin irritation, in order to reduce skin impedance encountered during diagnosis or monitoring of a mammalian patient.

Backing plates are provided for use with abrasive disks designed to permit a view of the surface while abrading is occurring. This is achieved by the removal of portions of the circumference of the plate and preferably also viewing apertures in the body of the plate.

A probe cleaning sheet is provided, which can be used not only at a room temperature and high temperature but also in a low temperature environment with sufficient cushioning property and which can softly and efficiently clean a probe tip end. Specifically, the cleaning sheet has a layered structure including an elastic layer below a polishing layer, for removing, by contact with the polishing layer, foreign matter adhered on a tip end of a probe for semiconductor inspection, and the elastic layer is a polytetrafluoro-ethylene porous body layer.

A sharpener for blades comprises a physical structure supporting at least one abrasive surface. A displaceable guiding plate having an integral linear structural feature of the support is disposed toward one side of the abrasive surface. The linear structural feature provides sliding contact with a face of the blade to establish the relative angle of the plane of the edge facet of the blade with the plane of the abrasive surface at the point of mutual contact as the facet is guided into contact with the abrasive surface.

A cleaning element (36) for a cement floor surface mounted to a housing (32). Each cleaning element has a flat flexible abrasive surface (39) that is transversely positioned to the direction of motion to provide flex during cleaning of a cement floor surface.

A tool for supporting an abrasive material is disclosed. The tool may be used to abrade a surface, for example, for sanding. The tool includes a flexible base plate, a base plate curvature-adjusting device, a resilient pad with recesses, and clamps for mounting an abrasive sheet material upon the pad. The curvature-adjusting device includes a rotatable handle that engages the ends of the base plate and deflects the base plate to a desired curvature. The recesses in the pad retain abraded material and minimize build up of the abraded material on the abrasive sheet. Aspects of the invention may be used to abrade, for example, sand, any surface requiring material removal, for example, sheet rock or automobile body panels. A tool for spreading a material, such as an adhesive, on a surface is also disclosed; the curvature of the working surface of this tool may also be adjustable.

An electronic device is protected from unauthorized access by use of a security wrap having a security screen connected to an alarm circuit of the electronic device. The security screen has a pair of screen terminals interconnected by a conductor. The conductor is formed on a substrate. The substrate is arranged such that attempts to remove the security wrap will result in the substrate being torn and the conductor being damaged or broken whereby the resistance of the conductive path formed by the conductor changes to indicate an alarm condition.

An attachment system for attaching an abrasive article, such as an abrasive sheet or disc, to a sanding tool includes an article having a first major surface including an attachment region with attachment material for attachment with an associated mating surface on the sanding tool, and a non-attachment region along at least a portion of an edge of the first major surface forming a sufficiently weak attachment with the associated mating surface to allow a user to grasp the abrasive article and separate the abrasive article from the sanding tool.

A vacuum-assisted pole sander includes a sanding means attached at the end of the main pole, which in turn is supported in its middle section by a support pole. Both the support pole and the main pole are hollow and adjustable in length. The vacuum is transmitted from the sanding means of the device through the main pole to the vacuum connector in the supporting pole such that a vacuum can be attached on to ensure dust removal during operation. The combination of the support pole and the main pole is designed in such a way that the entire device is supported on the floor of the building under construction while allowing the operator to move it easily back and forth to achieve sanding of the ceiling. The support pole has a non-slip cap on its lower end and an angle connector on the other end. The angle connector is rotatably attached to the main pole such that it ensures the ability to swivel and at the same time provides a fluid communication between the inside portions of both the main pole and the support pole. The support pole is equipped with a vacuum attached for connecting to the suction means. The lower end of the main pole is equipped with vacuum strength adjustment means.

A polishing apparatus includes a plurality of polishing fluid supply openings terminating in a polishing surface of a polishing table, and a plurality of grooves which are formed in the polishing surface and arranged so as not to be in direct communication with the polishing fluid supply openings. The polishing apparatus further includes a polishing fluid supply system for supplying a polishing fluid to a surface of a substrate through the openings. The grooves may extend at right angles relative to one another so as to define a plurality of lands therebetween, and the polishing fluid supply openings are formed through the lands.

The present invention relates to a device for containing one or more blades. In a preferred for, the device is a knife block for containing a plurality of knives. The device includes a housing having a plurality of openings, each opening for containing a respective blade therein. The device also includes a blade restraining mechanism including a restraining member having active and inactive conditions in that when a blade is inserted within one of the openings such that substantially an entire cutting edge of the blade is within the opening, in the active condition the restraining member prevents withdrawal of the blade from the opening and in the inactive condition the restraining member allows withdrawal of the blade from the opening. In a preferred form, the device is configured to contain a plurality of blades that each include opposite substantially parallel sides which meet at a cutting edge, an opening within the blade extending between and transversely to the substantially parallel sides of the blade and enclosed within the blade, wherein the opening is engaged by the restraining member when in the active position to prevent withdrawal of the blade from the opening and which is disengaged by the restraining member when in the inactive position to allow withdrawal of the blade from the opening. The present invention also relates to a combination of the device and one or more of the blades.

A mounting system for rotating tools such as grinding wheels in a hand-held power tool, includes a hub mountable to the tool drive shaft and a rotating tool element removably affixable to the hub. The tool has at least one flange that engages a corresponding circumferential groove in a hub wall. Both the hub and tool have complimentary lock elements to frictionally retain the tool in a releasably fixed orientation upon the hub. One of the lock elements is in the form of a depression, while a mating element located on the other ports is a complimentary projection.

An improved low pressure low speed concrete polishing apparatus and method of cleaning and polishing a floor is used with a conventional rotary flooring machine. A polishing pad has interchangeable polymer strips that are slideably received within the housing of the pad. The polymer strips have an abrasive material embedded therein which collectively work to polish the floor while cleaning the floor during normal low speed floor cleaning conditions.

A polishing apparatus is provided for optimizing a polishing profile in consideration of even such parameters as the temperature on the surface of an object to be polished, and the thickness of a polishing pad, in addition to a polished amount. The polishing apparatus for polishing the object to be polished under control of a control unit CU has at least two pressing sections, and comprises a top ring which can apply an arbitrary pressure to the object to be polished from each of the pressing sections, a measuring device IM for measuring a polished amount of the object to be polished, and a monitoring device SM for monitoring the object to be polished for a polishing condition. The control unit CU forces the polishing apparatus to polish the object to be polished in accordance with a simulation program for setting processing pressures required to optimize a polishing profile of the object to be polished to the top ring based on the output of the measuring device IM and the output of the monitoring device SM.

An embodiment of a hand manipulated tool includes an elongate handle and a tool support. The tool support has a center, rotationally fixed to the elongate handle. The tool support has a periphery with at least five points equidistant from the center.

A knife sharpener has a housing, a base, a sharpening device and an adjustable device. The housing has a case, a cavity and a slot. The cavity is defined in the case and the slot is defined in the case and communicates with the cavity. The base is mounted on the housing and has a base board and two side walls formed on the base board. The sharpening device is movable mounted on the base and is received inside the housing. The sharpening device has two sharpening arms with sharpening rods. The adjustable device is mounted on the sharpening device mounted between the two sharpening arms. When the knife sharpener is used, the adjustable device is rotated to change the cross-position of the sharpening device. Therefore, a knife may be sharpened at a different site on the sharpening rods for prolonging the life span of the knife sharpener.