Abstract: A sander according to the present invention comprising a housing, a motor and a transmission mounted within the housing, a sanding plate mounted below the housing, a battery pack mounted at the rear end of the housing and a balance means mounted on either the housing or the sanding plate. The balance means includes a balance element disposed in the front part of the sander. The balance element is balanced with the battery pack, which solves the balance problem of the DC sanders known in the prior art while still providing a battery pack that can satisfy the power requirements of the sander.

Abstract: A tool for moving an abrasive media can include a tool body and a drive system housed in the tool body. The drive system can include an output member. A retaining member can be disposed on the tool body. A first platen having a first attachment hub can be selectively coupled with the retaining member in an installed position The first platen can have a first rotatable member that selectively attaches to the output member in a first mode of operation. A second platen having a second attachment hub can selectively couple with the retaining member in an installed position. The second platen can have a second rotatable member that selectively attaches to the output member in a second mode of operation.

Abstract: A tool for moving an abrasive media. The tool includes a tool body, a platen, a drive system and a retaining knob. The platen has an exterior platen surface and a knob aperture that is formed through the exterior platen surface. The drive system is housed in the tool body and configured to move the platen. The drive system includes an output member with a first threaded portion. The retaining knob is received through the knob aperture in the exterior platen surface of the platen. The retaining knob has a knob portion, which has an exterior surface, and an attachment member with a second threaded portion that is threadably coupled to the first threaded portion. The platen surface and at least a portion of the knob surface are co-planar. A related method is also provided.

Abstract: The disclosure is directed to a conversion assemblage adapted for use in converting a surface modifying mechanism, such as a pole sander, having an attaching member. The surface modifying assemblage and method facilitate converting the pole sander with anyone of several different surface treating assemblages in an easy and reliable manner as well as provides for enhanced surface modifying efficiencies and improvements.

Abstract: The disclosure is directed to a conversion assemblage adapted for use in converting a surface modifying mechanism, such as a pole sander, having an attaching member. The surface modifying assemblage and method facilitate converting the pole sander with anyone of several different surface treating assemblages in an easy and reliable manner as well as provides for enhanced surface modifying efficiencies and improvements.

Abstract: The invention relates to a device for polishing the end of at least one optical fiber mounted in a connector, the device comprising a moving part supporting at least one connector and another moving part carrying a polishing film, the movement of these two parts being synchronized. According to the invention, these two parts are in direct contact via a movement transmission element, movement of one of them giving rise to movement of the other.

Abstract: The invention discloses an oscillatingly driven machine tool, having an oscillatory drive for driving a drive shaft about its longitudinal axis, having a flange provided on the drive shaft against which an oscillatory tool can be clamped by spring force via a counter flange, and having a displacing mechanism for displacing the counter flange between a working position in which the oscillatory tool is clamped by a spring between the flange and the counter flange and a released position in which the counter flange can be detached from the flange.

Abstract: A representative louver sander includes: a housing containing a vibrator motor; and a sanding attachment having a staff and a sanding paddle, the staff being sized and shaped to be removably attached to the housing, the sanding paddle being located at a distal end of the staff such that when the staff is attached to the housing and the vibrator motor is operating, the sanding paddle is vibrated; the sanding paddle having first and second opposing sanding surfaces and a curved surface interconnecting the first and second surfaces; the first sanding surface extending outwardly from the curved surface to a length that is greater than a length that the second sanding surface extends from the curved surface.

Abstract: There is provided a polishing tool which enables a polishing surface thereof to be in surface contact with a to-be-polished surface over a wide area of the polishing surface when polishing a corner portion, and which can reduce an impact of a polishing member caused when the polishing member hits against a member around the polishing member. A generally triangular polishing member (18) having apex angles of 60 degrees is connected, through the intermediary of an oscillation transmitting member (30) made of a plate-like spring member, to an oscillating shaft (12) oscillated by a motor (13). The oscillation transmitting member (30) has a triangular base (24) having at the center thereof a fixing hole (22) by which the triangular base is fitted and fixed to the oscillating shaft, and triangular polishing member holding portions (26) each extending from each side of the triangular base.

Abstract: An attachment for an oscillatory sanding or abrading device has a pair of flexible support members for supporting the sanding or abrading material. The initial radius of curvature of the flexible support member may be adjusted by a pneumatic adjustment mechanism. An opposing pair of generally cylindrical bladders are disposed proximate end portions of the flexible support member, the bladders being releasably attached between the underside of the abrading device and the support member. Adjustment of the initial radius of curvature of the flexible support is accomplished by selectively inflating one or both of the bladders. The radius of curvature of the flexible support member during the sanding process is then a function of the applied pressure or inflation of the bladders. The device allows for virtually infinitely varying adjustments of the curvature of the flexible sheet and the attached abrading sheet.

Abstract: The present invention relates particularly to an oscillating grinding machine. The grinding machine comprises a driving motor (3) surrounded by a body (3), and a drive shaft (4) cooperating with the driving motor. The drive shaft comprises a grinding head (5) that constitutes a support for a grinding product (8). The drive shaft (4) is arranged in two pieces and comprises a main shaft (11) and an eccentric shaft (10) arranged rigidly thereto. The eccentric shaft comprises a centre line (12) that assumes an angle (?) against a corresponding centre line (13) of the main shaft, and thus the grinding head (5) will assume an eccentric placement in relation to the main shaft (11). Thus, the grinding head is arranged to oscillate in a substantially spherical plane provided by the rotation of the main shaft and the eccentricity and inclination of the eccentric shaft in relation to the main shaft.

Abstract: A tool sharpener accessory having a base mounted on a support, a pivoting member pivotally mounted on the base and pivoting in at least a seesaw motion relative to the base, the pivoting ember having an axis of rotation adaptable for extending transverse to the axis of rotation of the grinding stone, and a securing mechanism for securing the tool to the pivoting member.

Abstract: An in-line profile sander is disclosed. The in-line profile sander includes a sander housing configured to be grasped by a user. A plurality of interchangeable profile sanding pads can be mounted at a head of the housing. The sander includes an in-line oscillating mechanism for moving the profile sanding pads in a linear oscillating motion.

Abstract: A sander can include a housing, an indicator coupled to the housing, and a motor assembly in the housing. The motor assembly can include an output member. A platen can be driven by the output member. A DC generator can be driven by the output member. The DC generator can generate an output signal with a voltage that is related to a rotational speed of the motor. A controller can operate the visual indicator based on the voltage of the output signal. According to additional features, the DC generator can provide electrical power to operate the indicator. An electric power input can be electrically coupled to the motor. The visual indicator can be electrically isolated from the electric power input.

Abstract: A sander can include housing, and a motor assembly in the housing. The motor assembly can include an output member. A platen can be driven by the output member. A user feedback assembly can be coupled to the housing and have a sensor assembly, a controller and an indicator. The sensor assembly can be configured to sense a parameter that is related to a magnitude of a force transmitted between the platen and a workpiece and generate a signal in response thereto. The controller can receive the sensor signal from the sensor assembly and control operation of the indicator in response thereto.

Abstract: A sander can include a housing, an indicator disposed on the housing, and a motor assembly in the housing. The motor assembly can include an output member. A platen can be driven by the output member. A sensor assembly can be configured to sense a condition in which a pressing force in excess of a predetermined force is applied to the sander in a direction normal to the platen and generate a sensor signal in response thereto. A controller can receive the sensor signal from the sensor assembly and control operation of the indicator in response thereto. The sensor assembly can include a force sensing resistor. The force sensing resistor can be disposed adjacent to a gripping portion of the power sanding tool. The indicator can include at least one light source. The controller can illuminate the light source according to a schedule.

Abstract: A sander can include a housing, an indicator coupled to the housing, and a motor assembly in the housing. The motor assembly can include an output member. A platen can be driven by the output member. A DC generator can be driven by the output member. The DC generator can generate an output signal with a voltage that is related to a rotational speed of the motor. A controller can operate the visual indicator based on the voltage of the output signal. According to additional features, the DC generator can provide electrical power to operate the indicator. An electric power input can be electrically coupled to the motor. The visual indicator can be electrically isolated from the electric power input.

Abstract: A motorized tool, such as an oscillating spindle sander, includes a drive unit that is removably carried by a support table such that a motor of the drive unit is disposed below a tabletop and a tool attachment is disposed above the tabletop. The drive unit is readily removable from the table so that another drive unit having a similar shape and a different tool attachment may be used with the table.

Abstract: An in-line profile sander is disclosed. The in-line profile sander includes a sander housing configured to be grasped by a user. A plurality of interchangeable profile sanding pads can be mounted at a head of the housing. The sander includes an in-line oscillating mechanism for moving the profile sanding pads in a linear oscillating motion.

Abstract: To grind a peripheral surface of a rotated work (10), by a rotary grindstone (22) rotated by a wheel spindle 21, a rotary brush (40) is mounted to one side of the rotary grindstone (22), so that it is rotated along with the rotary grindstone (22). Subsequently to the grinding of the work (10) by the rotary grindstone (22), the rotary grindstone (22) and the work (10) are moved axially relative to each other, and a ground surface of the work (10) is brushed by the rotary brush (40), whereby the polishing of the ground surface of the work (10) is achieved. Thus, the shifting of the work as well as an exclusive deflashing device and an exclusive polishing device are not required, which can contribute to a reduction in machining cost.

Abstract: A belt sander is disclosed that may include a sanding assembly having a first roller and a second roller, the sanding assembly being configured to receive a sanding belt around the first roller and the second roller to define a sanding surface therebetweeen. The belt sander may include a motor operationally coupled to the sanding assembly and opposite the sanding surface, the motor being configured to rotate at least the first roller and thereby rotate the sanding belt around the first roller and the second roller, as well as a handgrip formed around at least a portion of the motor and substantially encasing the motor.

Abstract: A composite support structure for use in sanding includes a rigid member having a front surface and a back surface for connection to a handle, and a polyfoam layer having a front surface and a back surface, wherein the back surface of the polyfoam is bonded to the front surface of the rigid member which when bonded forms a suitable composite support structure for removably connecting sandpaper thereto. A method of forming the same is provided.

Abstract: A manual power grinder has a housing, a motor received in the housing, a grinding disk driven by the motor and located on an underside of the motor, a drive shaft arranged so that the drive shaft and the motor are located parallel to one another and vertically to the grinding disk in the housing and are in rotational communication with one another, and a gear unit providing the rotational communication of the motor and the drive shaft and located in the housing.

Abstract: A manual power grinder has a housing, a motor received in the housing, a grinding disc driven by the motor and located on an underside of the motor; a drive shaft arranged so that said drive shaft and the motor are located parallel to one another and vertically to the grinding disc in said housing and are in rotational communication with one another, and a gear unit providing the rotational communication of the motor and the drive shaft and located below in the housing.

Abstract: A sanding attachment, for use in conjunction with an existing reciprocating power tool, for sanding a rough surface of an existing object. The sanding attachment comprises a main part being an elongated strip of metal having an attachment end for selective attachment to the power tool, and a sanding end. Attached to the sanding end is a sanding pad having a sanding surface for efficiently sanding an object. The sanding attachment has a twist which results in the attachment end and the sanding end being substantially mutually perpendicular to one another. After the sanding attachment has been selectively attached to the power tool, and the power tool is held within the hands of the user is the usual fashion, the sanding attachment is suitably positioned for efficiently sanding a substantially horizontal surface.

Abstract: The present invention provides an adjustable drywall sander capable of imparting more than one type of motion. In an exemplary embodiment, the sander includes a power unit with a motor and a sanding assembly coupled to the power unit. A telescopic support arm assembly is coupled to the sanding assembly and the power unit for supporting the sanding assembly. The telescopic support arm assembly includes a first support arm with a first and a second end and a second support arm with a first and second end. The first end of the first support arm being coupled to the power unit and the second end of the second support arm being coupled to the sanding assembly. A collapsible drive shaft is substantially enclosed by the telescopic support arm assembly. The telescopic support arm assembly and the collapsible drive shaft allow the length of the telescopic assembly to be adjusted.

Abstract: A cutting workstation which includes a cutter mounted on an arm type configuration. The arm configuration is slidably moveable relative to a divided work piece support table, the cutter moveable there between. Further, the cutter is capable of elevating the arm either above or below the worktable. Not only is the arm capable of being lengthened and shortened, but also it is also of capable of rotation producing a variety of miter cuts. The arm is also capable of rotating to a vertical axis to produce a chop cut motion. The bifurcated table or work piece support is capable of being rotated through a number of degrees relative to the cutter also producing mitered or angled cuts. The bifurcated worktable is also capable of being elevated above or below or at the level of the cutter. The cutter, if in the form of a circular cutter blade, is preferably provided with the conventional pivotal spring-loaded blade guard.

Abstract: The invention is based on a bearing arrangement for vibratingly supporting a grinding disk (24) on a grinding apparatus (10), in particular in a vibrating grinder, having a plurality of elastic vibration bodies (48), which can be connected on the one hand to the grinding disk (24) and on the other to the grinding apparatus (10). It is proposed that the vibration bodies (48) are disposed, individually or in groups of a plurality of vibration bodies (48) each, in a plurality of modules (42) that are separate from one another.

Abstract: A power sander (2) having a housing (4) and a motor within the housing is disclosed. A gripping portion adapted to be engaged by a hand of a user of the sander comprises blister packs (30), (36) comprising first and second flexible sheets defining a gel-containing chamber therebetween and containing a vibration damping gel material, the first and second sheets being sealed to each other at the periphery of each gel-containing chamber. Clamping plates (34), (40) include a body portion and pins (not shown) adapted to extend through the periphery of a corresponding blister pack and to protrude inwardly of the surface of the housing (4). The pins are then deformed by means of heat or ultrasound to secure the clamping plates (34), (40) to the housing (4).

Abstract: The present invention relates to a dual plate sander comprising a housing, a motor mounted in the housing, first and second transmission devices driven by the motor and eccentric shafts each rotating about a main drive shaft connected to the transmission device. Twin sanding assemblies terminating in sanding plates are mounted on respective eccentric shafts. A guiding element serves to translate the eccentric rotary motion of the eccentric shafts into opposite reciprocating movement of the sanding assemblies. The opposed reciprocating movement serves to balance the inertial forces generated by the sander and reduce oscillations.

Abstract: Disclosed is a grinding tool for a grinder comprising a rotary oscillating drive, the output shaft of which is driven so as to oscillate back and forth about its longitudinal axis and is configured for securing the grinding tool thereon. The grinding tool comprises a grinding pad which is made of a resilient material and encompasses at least one grinding surface that runs straight in one direction of extension and parallel to a tangent to the output shaft of the rotary oscillating drive.

Abstract: A holder for flexible abrasive sheets. An abrasive sheet is gripped by a gripper actuated by a rotationally mounted cam pin that reciprocates a cam plate which pulls an edge of the sheet tightly against a backing surface so it can respond to oscillation of a sander to which the holder is mounted.

Abstract: A joint compound sanding device (10) comprises a hand held housing (12) and a bottom plate (66) coupled to the hand held housing (12). The bottom plate (66) includes a plurality of dust collection apertures (74) extending through the bottom plate (66) between a vacuum manifold (64) and a bottom surface (76). A plurality of dust collection channels (78) are formed in the bottom surface (76) defining mesas (80) there between. The mesas support a porous joint compound sanding screen (54). A motor is coupled to hand held housing (12) and includes a rotating shaft coupled and rotating to a dust collection fan (30) such that air is drawn through a porous joint compound sanding screen (54), through the channels (78), through the dust collection apertures (74) into the vacuum manifold (64) and through the fan inlet (32) and expelling the air into an exhaust manifold (34).

Abstract: A grinding apparatus for use with an endoscope for viewing and blending defects on a turbine engine blade is provided. In one preferred embodiment a mechanical driver causes a grinding head on the end of a grinding tool to reciprocate at a predetermined speed. The position of the grinding head is fixed via the operator via a trigger on the grinding tool which articulates an outer portion of a support tube of the grinding tool.

Abstract: A power tool (10) with a housing (12) which accommodates a driven shaft (32) for holding a material-removing tool (40) and which sets the driven shaft into rotary oscillating motion capable of being produced by an eccentric (22) rotating around an axis extending at a right angle to the driven shaft (32), the eccentric engaging in a connecting element coupled with the driven shaft (32), is usable in a more diverse manner because the rotary oscillating motion of the driven shaft (32) and, therefore, the tool (40), is adjustable with a certain travel and is therefore adaptable to special applications.

Abstract: A holder for holding a tool implement for use with a power tool having a drive output member. The holder includes a pair of first and second supports for connection to the output member, a clamp member located between the supports, and a cam supported between the first support and the clamp member. The cam can be turned between an operative position, urging the clamp member towards the second support to hold the tool implement, and an inoperative position, releasing the clamp member for removal of the tool implement.

Abstract: A grinding apparatus for use with an endoscope for viewing and blending defects on a turbine engine blade is provided. In one preferred embodiment a motorized driver causes a grinding head on the end of a grinding tool to rotate at a predetermined speed. The position of the grinding head is fixed via the operator via a trigger on the grinding tool which articulates an outer portion of a support tube of the grinding tool.

Abstract: A joint compound sanding machine imparting an oscillating motion on an abrasive within a sanding plane and on a removable abrasive extension comprises a hand held housing and an oscillating base. The base is coupled to the hand held housing by a motor. The base comprises a bottom surface defining the sanding plane, a clamp for securing the abrasive against the bottom surface, and a mounting for securing the removable abrasive extension to the base. The motor is coupled between the hand held housing and the base for imparting the oscillating motion, with respect to the hand held housing, on the base to oscillate both the abrasive and the removable abrasive extension.

Abstract: The present discovery refers to a connecting foot for a machine constituted by a central cylinder of hard plastic material, possibly fitted with a hole, coaxial to said central cylinder, and by an external coating of rubber. Said rubber also fills the hole forming a rod that connects the two heads of the external coating. The external coating of the foot is constituted by a single piece that completely covers the internal cylinder. An orbital sanding machine is also described, comprising a machine body that supports a motor for the rotation of a vertical shaft, a rotative-orbital plate connected eccentrically to said shaft by means of an eccentric hub in relation to the axis of the shaft and elastic connecting feet between the operating plate and the machine body.

Abstract: A set of profiled sanding pads for doing bodywork on vehicles and the like where specific areas require sanding attachments that conform to the unique contours encountered. The set of profiled sanding pads includes a plurality of elongate members, each having a distinctive configuration with a padded sanding side, and a side mountable to an existing sander.

Abstract: This manual, vacuum-enabled dustless sander provides complete debris collection from both the working surface and area extending peripherally beyond the sander head while overcoming other deficiencies of prior art by projecting an abrasive screen above the sander head to form a rectangular mound which abrades while allowing debris to be drawn through itself. The projection is achieved by placing the abrasive screen atop an air permeable cushion supported by a rectangular platform made to rotate at a position of use at the intake end of a hollow shaft. Ends of the screen are inserted between the walls of two rectangular containers which rotate on the shaft and loosely embrace the platform. Rotating the shaft moves the threaded inner down the shaft into the lower container to clamp the screen in place. Vacuumed air draws all abraded debris into the sander head and through the hollow shaft to a collection canister.

Abstract: Hand held abrading tools are disclosed. The abrading tools include clamping mechanisms to quickly and reliably secure sanding paper, bristled sheets, polishing cloths, and the like, to the tool, while at the same time providing the operator with increased agility and ability to reach relatively hard to reach or oddly shaped surfaces.

Abstract: An oscillatory drive comprising a rotating drive shaft is disclosed. The oscillatory drive is driven by an eccentric element that is coupled via a pivot element to a tool drive shaft arranged at an angle to the drive shaft for oscillatingly driving the tool drive shaft pivoting back and forth about its longitudinal axis. The eccentric element comprises a spherical outer ring which is guided within an at least partially cylindrical inner surface of the pivot element. By spring biasing the free end of the pivot element at both outer sides against the housing, efficiency is improved and vibrations are reduced.

Abstract: A grinding apparatus for use with an endoscope for viewing and blending defects on a turbine engine blade is provided. In one preferred embodiment air pulses from an air supply cause a grinding head on the end of a grinding tool to reciprocate at a predetermined speed. The position of the grinding head is fixed via the operator via a trigger on the grinding tool which articulates an outer portion of a support tube of the grinding tool. In another preferred embodiment, fluid is used to reciprocate the grinding head.

Abstract: This invention relates to an improvement of a clip mechanism on a grinding cloth platform wherein the clip mechanism includes a jack post, a movable knob, and a clamp, providing for a bottom side of the movable knob to engage the clamp at the two sides of the jack post, thereby providing a precise clamp force to the clamp. The clamp is put on a non-circular driving portion of the jack post so as to disallow the clamp to turn around the non-circular shaft and to make it move stably downward, thereby making clamping teeth provided at the bottom side of the clamp precisely align with the table board to clamp the grinding cloth to the grinding cloth platform for smooth and stable grinding when a surface of an object is ground on the platform.

Abstract: A device for use with air and electric powered and manual minisaws all of which are used with reciprocating action, to extend the functionality of the saw. The device is a sanding block having a vertical arm attached to a mounting plate on a first side of the plate. A sanding member having a top surface is glued or otherwise attached to the second side of the plate. The mount plate may be coextensive with the top surface of the sanding member. The arm includes an insertion section dimensioned to be engaged by the slot in the chuck of the saw and which insertion section is spaced from said mount plate and the rear edge of which is disposed rearward of said mount plate.

Abstract: A grinder with fast installable/detachable grinding disc, including: a main body; a rotary shaft disposed at bottom end of the main body, a shaft rod of the grinding disc being mounted in the shaft hole of the rotary shaft, whereby the grinding disc is drivable by the rotary shaft; a rotary switch mounted on the main body; a linking device mounted at bottom end of the main body and drivable by the rotary switch; and a detent mechanism mounted in the rotary shaft. When the rotary switch is rotated to drive and move the linking device to a first position, the detent mechanism is moved into the shaft hole of the rotary shaft to fix the shaft rod of the grinding disc in the shaft hole. When the rotary switch is rotated to drive and move the linking device to a second position, the detent mechanism is moved out of the shaft hole of the rotary shaft to release the shaft rod of the grinding disc. Accordingly, the grinding disc is fast replaceable by means of simple operation.

Abstract: An improved portable stone cutter includes a base which is of a rectangular frame composed of a plurality of longitudinal bars, a pair of transverse bars and a pair sliding bars, a working table slidably secured to the sliding bars, a motor disposed on the front end of the frame and sustained by an arcuate support arm and a supplementary support arm which are releasably and rotatably secured to a pair of outmost longitudinal bars, a guarded circular saw blade connected to the motor and operated by the motor via a belt and a transmission shaft and a tool plate movably disposed to one of the outmost longitudinal bars. The feature is that the arcuate support arm and the supplementary support arm define a large space to permit a large piece of stone passing through the saw blade and both the supplementary support arm and the tool plate are removable to reduce the volume of the stone cutter to conveniently pack for transportation.

Abstract: A non-rotary, linear reciprocating floor sander includes a housing having a bottom opening, wherein a rotating electric motor is supported by the housing. A vertical output shaft extends within the housing and engages gears controlling a pair of flat platens enclosed above and on sides by the housing. The platens have lower surfaces with bonded sandpaper pads adapted to be in contact with a floor to be sanded. The vertical output shaft controls reciprocating movement of the platens linearly in a plane in opposite directions, so that the platens move toward and away from each other, thereby reducing little induced force or vibration transmitted to the housing.

Abstract: A power grinder, in particular an oscillating grinder (10), having a housing (12) and a grinding sheet holder (14), on whose working face (15) a grinding sheet (16) to be received is braced, and its reception is effected by means of clamping means (20, 23) that lock opposite grinding sheet ends (17, 19) to the grinding sheet holder (14), is made easier to operate, and its machining capacity is improved, by providing that for equipping it with the grinding sheet, the clamping means (20, 23) are movable jointly with a grinding sheet end (17) clamped to them away from the opposite, likewise clamped grinding sheet end (19), so that the latter is locked, while under tensile stress.