Abstract: A surgical instrument comprises a first member including an inner surface that defines a cavity and an outer surface configured to space tissue. The first member includes a first locking surface. A second member is configured for disposal within the cavity and extends between a first end configured to penetrate tissue and a second end configured to generate a signal representative of a position of the second member. The second member includes a second locking surface. The members are disposable between a first orientation such that the locking surfaces are engaged to resist relative axial translation of the members and a second orientation such that the locking surfaces are disengaged and the second member is axially translatable relative to the first member. Systems and methods are disclosed.

Abstract: Systems, methods, and computer-readable media for managing application events are provided. In embodiments, a notifier is received that indicates a usage of an application installed on a user device and a date associated with the usage. A verification notifier is also received that verifies that the user device is registered in association with the application and indicates a date associated with the verification. The date associated with the usage and the date associated with the verification are compared to determine whether the dates occur within a predetermined time period relative to one another. In such a case, it might be determined that a provider of the application installed on the user device should be rewarded.

Abstract: A hairbrush for styling hair has a brush head releasably connected to a rod rotatably mounted on a handle portion of the hairbrush and having a handle. The brush head has a plurality of spaced apart bristles for insertion between strands of the hair and gripping the strands therebetween. As the rod, and therefore the brush head are rotatable relative the handle, the brush head, with strands of hair gripped thereon, can be rotated as the handle is moved towards the head of a person whose hair is being styled, thus causing the strands of hair to be rolled around brush head, without requiring cumbersome twisting of the handle. A spring facilitates rotation in an opposite second direction and unrolling of the strands of hair off the brush head. A locking pin enables locking and unlocking of the rod and brush head to prevent and enable rotation thereof.

Abstract: To provide a compact manual cleaning instrument with which it is simple to collect and discharge dust, with which it is possible to clean in tight spaces, which is silent, and which is comfortable to use. A dust trapping body 3 is brought into contact with a surface to be cleaned, and the manual cleaning instrument 1 is moved back and forth, whereby dust can be trapped and collected in a dust collection chamber 37. The dust which has been collected can be discharged by opening a lid 28.

Abstract: The present invention is a device for use in cleaning a fabric surface of dust, dirt, pet hair, and other debris present on the surface. The device includes a housing, a cleaning member, such as a roller, and a pair of cleaning material sections on opposite sides of the roller. The cleaning member has a protrusion that selectively engages one of a pair of stops to prevent rotation of the cleaning member past a respective stop.

Abstract: The present invention is a device (10) for use in cleaning a fabric surface (16) of dust, dirt, pet hair and other debris (20) present on the surface (16). The device (10) includes a pair of cleaning members or rollers (60, 61) disposed on an underside of the device (10) which can roll with respect to the device (10) and with respect to one another. The rollers (60, 61) are selectively contacted with one another such that each roller (60, 61) can assist in removing debris (20) picked up by the opposite roller (60, 61) and dispensing the debris (20) into a collection chamber (32) releasably positioned within a housing (11). The removal of the debris (20) from each roller (60, 61) is also facilitated by opposed edges of a central opening (58) in the housing (11) that contact the rollers (60, 61) and direct the debris (20) into the debris collection chamber (32).

Abstract: An apparatus for removing a hair tangle is provided that moves the hair brush having a first bristle on a rotatable brush element through the hair above the tangle in a first direction, pivots the first bristle on the rotatable brush element about a pivotal axis of the brush in a second direction if the hair tangle is encountered by the bristle, moves a second bristle on the rotatable brush element through the hair below the tangle, and moves additional bristles to a side of the tangle in order to release the hair tangle.

Abstract: A hairbrush and method of brushing are provided in which tangled hair may be brushed out at a better rate and with less pain. The hairbrush includes bristles that are mounted on revolving track portions so that when the bristles encounter a tangle or a resistance in the hair, the bristles are free to rotate. The hairbrush further includes a thumb button to adjust the resistance of the revolving track portion from a freely rotating position to a fixed position.

Abstract: The present invention is a device for use in cleaning a fabric surface of dust, dirt, pet hair and other debris present on the surface. The device includes a pair of cleaning members or rollers disposed on an underside of the device which can roll with respect to the device and with respect to one another. The rollers are selectively contacted with one another such that each roller can assist in removing debris picked up by the opposite roller and dispensing the debris into a collection chamber releasably positioned within the housing. The removal of the debris from each roller is also facilitated by opposed edges of a central opening in the housing that contact the rollers and direct the debris into the debris collection chamber.

Abstract: The present invention is a device for use in cleaning a fabric surface of dust, dirt, pet hair and other debris present on the surface. The device includes a pair of cleaning members or rollers disposed on an underside of the device which can roll with respect to the device and with respect to one another. The rollers are selectively contacted with one another such that each roller can assist in removing debris picked up by the opposite roller and dispensing the debris into a collection chamber releasably positioned within the housing. The removal of the debris from each roller is also facilitated by opposed edges of a central opening in the housing that contact the rollers and direct the debris into the debris collection chamber.

Abstract: Disclosed herein is a multi-directional toothbrush for protecting teeth. The multi-directional toothbrush includes a rotatable toothbrush part, a rotatable toothbrush part support frame, and a vertically moving toothbrush part. The rotatable toothbrush part is configured such that a cylindrical toothbrush part is provided on the outer surface of a cylindrical body. The rotatable toothbrush part support frame is configured such that the cam shafts of the rotatable toothbrush part are fitted into respective cam shaft holes. The vertically moving toothbrush part includes a vertically moving frame that is contained in the internal space of the rotatable toothbrush part support frame, and reciprocates up and down using a vertical moving means.

Abstract: An apparatus for removing a hair tangle is provided that moves the hair brush having a first bristle on a rotatable brush element through the hair above the tangle in a first direction, pivots the first bristle on the rotatable brush element about a pivotal axis of the brush in a second direction if the hair tangle is encountered by the bristle, moves a second bristle on the rotatable brush element through the hair below the tangle, and moves additional bristles to a side of the tangle in order to release the hair tangle.

Abstract: A reel-shaped bristle unit 10 comprising a set of strands of bristles 4 formed by bending a plurality of strands 1, made of synthetic resin filament such as nylon, into two in a U-shape and by aggregating the strands 1 as a bunch, wherein a lead wire for winding 3 common to the center of the strands 2 is fixed by welding or adhering thereto, wherein a spiral groove 7 is formed at a circumference 6 of a bristle reel 8 in which one or more rows of said set of strands of bristles 4 are plunged into the groove 7, Said set of strands of bristles 4 is plunged into the spiral groove 7 in such a manner to be wound spirally around the groove 7 of the waist of the reel 8 with a spiral pitch along it from one end of the lead wire 3 while the center of the strands 2 is fixed by the lead wire 3, wherein a free end of the set of the stands 4 extends above the reel while a clearance 9 is provided between the grooves 7 adjacent to each other.

Abstract: A toothbrush has a number of rotatable brush assemblies mechanically linked so as to move together with a handle. Each rotatable brush assembly includes a wheel, with radially projecting bristles, configured to rotate about an axis which is roughly parallel to a plane of contact with the teeth. The axis of rotation is inclined relative to a primary direction of insertion of the toothbrush, corresponding to an extensional direction of the handle, by an angle of between about 15° and about 75°, and preferably closer to 45°.

Abstract: A blackboard eraser including a cube having two semi-cylindrical grooves symmetrically arranged in a longitudinal direction therein, and a central brush atop an elevated surface formed between the two grooves. A longitudinal groove is defined underneath each of the send-cylindrical grooves, and equal-length side brushes, which are affixed to an inner surface of a lid, are respectively positioned in the longitudinal grooves. Two grooves are arranged adjacent to each end of the semi-cylindrical grooves, which provide for a shaft affixed to each end of a roller to dispose therein. The brushes and the rollers form the eraser, which are enclosed within a closed chamber between the lid and the two semi-cylindrical grooves. When erasing chalk dust from a blackboard, the chalk dust sticks to the rollers and is carried to the side brushes. The side brushes then wipes the dust, which falls into the closed chamber.

Abstract: Oral devices are provided, including oral brushes that include bristle tufts and a rotatable member having radially extending protrusions constructed to wedge between a user's teeth and, among other things, cause compression of the papilla.

Abstract: A toothbrush design which more effectively permits bristle penetration into the spaces between tooth and gum for removal of plaque and food debris lodged within these spaces. The toothbrush design incorporates a rotatable brush disc having a plurality of radially outward extending bristles but where the width of the bristle disc and number of bristles are preferably limited so that the bristle tips can penetrate into the space between tooth and gum and preferably be of sufficient length to penetrate to the bottom of the space.

Abstract: A toothbrush design which more effectively permits bristle penetration into the spaces between tooth and gum for removal of plaque and food debris lodged within these spaces. The toothbrush design incorporates a rotatable brush disc having a plurality of radially outward extending bristles but where the width of the bristle disc and number of bristles are preferably limited so that the bristle tips can penetrate into the space between tooth and gum and preferably be of sufficient length to penetrate to the bottom of the space.

Abstract: A preferably non-electric, non-mechanically actuated toothbrush is provided having a generally U-shaped appearance with a rotary brush located, during use, on each side of a tooth to be cleaned. The brushes are configured to rotate about an axis which is parallel to the long axis of the tooth to be cleaned, and essentially perpendicular to the buccal and lingual gum line, of the user. The brushes are preferably held in contact with the teeth and gum tissue by a resilient section of the toothbrush. In this fashion, a pushing and pulling motion during brushing results in a rotational motion of the brushes. An improved method for cleansing teeth, cleaning the opening to the gingival crevice area, and stimulation of the gingival tissue is provided.

Abstract: An adhesive roll cleaner having a single-sided adhesive sheet wound around a core tube into a roll with the adhesive side facing out, wherein the adhesive sheet has a tear strength of 500 mN or higher and is wound in such a manner that the adhesive roll cleaner maintains an outer diameter within a range of 22 to 40 mm from start to end of use, and the roll has a width of 180 to 300 mm.

Abstract: An adhesive roll cleaner (1) having single-sided adhesive sheets (3) helically wound around a core tube (2) with the adhesive side out, wherein the adhesive sheets (3) each have a tear strength of 500 mN or higher as measured with an Elmendorf tear tester according to JIS P8116(ISO 1974).

Abstract: A preferably non-electric, non-mechanically actuated toothbrush is provided having a generally U-shaped appearance with a rotary brush located, during use, on each side of a tooth to be cleaned. The brushes are configured to rotate about an axis which is parallel to the long axis of the tooth to be cleaned, and essentially perpendicular to the buccal and lingual gum line, of the user. The brushes are preferably held in contact with the teeth and gum tissue by a resilient section of the toothbrush. In this fashion, a pushing and pulling motion during brushing results in a rotational motion of the brushes. An improved method for cleansing teeth, cleaning the opening to the gingival crevice area, and stimulation of the gingival tissue is provided.

Abstract: A wiper arm (14) for a wiper device has at least one attachment part (24) with a support part (20) and two cranks (28, 30), which are pivoted by means of two bearings (47, 50) on the support part (40). The bearing box of the bearing (47, 50) is injected into the support part (40). A method for producing the wiper arm is also provided.

Abstract: A method is provided for manufacturing a function element carrier with function elements, for example, individual tufts made up of bristles and/or massage elements, interproximal cleaning elements, or other elements designed to be fastened to a toothbrush and also perform special functions. The function elements are equipped at their ends intended for anchoring in a toothbrush with an anchor, retainer or axle element. The method includes: (a) inserting several function elements in corresponding recesses of an injection mold, said injection mold being connected via grid or bar shaped channels formed in a die to recesses in the areas of the anchoring ends of the function elements; (b) filling the grid or bar shaped channels with liquefied plastic material and injecting said material at the anchoring ends of the function elements or embedding them therein; and (c) allowing the plastic material to cool and removing a function element carrier made up of a grid or bar shaped plastic frame and the function elements.

Abstract: A toothbrush has a number of rotatable brush assemblies mechanically linked so as to move together with a handle. Each rotatable brush assembly includes a wheel, with radially projecting bristles, configured to rotate about an axis which is roughly parallel to a plane of contact with the teeth. The axis of rotation is inclined relative to a primary direction of insertion of the toothbrush, corresponding to an extensional direction of the handle, by an angle of between about 15° and about 75°, and preferably closer to 45°.

Abstract: A toothbrush has a number of rotatable brush assemblies mechanically linked so as to move together with a handle. Each rotatable brush assembly includes a wheel, with radially projecting bristles, configured to rotate about an axis which is roughly parallel to a plane of contact with the teeth. The axis of rotation is inclined relative to a primary direction of insertion of the toothbrush, corresponding to an extensional direction of the handle, by an angle of between about 15° and about 75°, and preferably closer to 45°.

Abstract: A toothbrush effective for removing plaque deposited on peripheral surfaces of adjacent teeth and the inner parts of teeth and massaging gums, comprising a rotary brush (5) formed into a roller shape by extending many bristles (6) radially outwardly from the outer peripheral surface of an annular unit (5a) provided at the center thereof with a shaft hole (5c) and a block handle (1) having at one end (1b) thereof a support shaft (4) for rotatably supporting the rotary brush (5).

Abstract: Oral devices are provided, including oral brushes that include bristle tufts and a rotatable member having radially extending tips constructed to penetrate the interproximal and subgingival regions of the oral cavity.

Abstract: In a cleaning device, the scraping up body and the rotating body rolling the adhesive roll are rotatably supported to the frame, and the adhesive roll is rotatably arranged on the scraping up body and the rotating body in parallel.

Abstract: A tooth cleaning device having (a) a tooth cleaning head, including: (i) a housing with sides that straddle the tooth along both long faces and defining a longitudinal axis extending between the sides thereof and along the long faces; (ii) gears affixed along respective inner surfaces of the sides of the housing; (iii) tooth cleaning elements affixed along the inner side of the gears and being operatively spaced apart from one another, along the longitudinal axis of the tooth cleaning head, to form a gap therebetween; and (iv) a drive mechanism including: a drive shaft affixed to the inner surfaces of the sides of the housing and spanning the housing, a drive wheel connected to the drive shaft, and transfer gears affixed near ends of the drive shaft and aligned with the gears; and (b) a handle connected to the tooth cleaning head, wherein as the tooth cleaning device travels along a row of teeth, the drive wheel rotates along the biting surface of the teeth, thereby rotating the drive shaft and the transfer g

Abstract: The hair brush includes an elongated member having a handle segment and a bristle substrate segment. The bristle substrate defines a cylindrical core having a smoothly curved, concave central region and radially larger end regions. A plurality of bristles are attached over the bristle substrate. The bristles have varying lengths such that the outer peripheral portions of the plurality of bristles define a planar surface, an arcuate segment of cylinder, or a complete cylinder. The bristles are distributed throughout the bristle substrate in a predetermined pattern. The bristles are disposed over the peripheral surface of the bristle substrate in one of two manners. In one embodiment the bristles are individually disposed on the bristle substrate in a series. In another embodiment, the bristles are segmented into groups of small bundles and these bundles are disposed on the bristle substrate in a series.

Abstract: A large-scale cleaning vehicle, for operation with a forklift, includes rotation brushes for sweeping debris toward a center of said cleaning vehicle, a sweeping brush for sweeping the debris into a debris collection box and a fan for pulling said debris into said debris collection box without the need for a motor in the cleaning vehicle. Each of the rotation brushes, the sweeping brush, and the fan are rotatably connected to a rear wheel of the cleaning vehicle such that when the cleaning vehicle is moved, the brushes and fan are rotated. The cleaning vehicle further includes a vertical adjustment for the rotation brushes to lift them when they are not needed, a lateral adjustment for the rotation brushes to adjust a width of sweeping, an audible warning for pedestrians, a water sprinkler system to aid in the cleaning process, and a large-scale trash removal brush mounted in front of the cleaning vehicle to push large-scale trash.

Abstract: A large-scale cleaning vehicle, for operation with a forklift, includes rotation brushes for sweeping debris toward a center of said cleaning vehicle, a sweeping brush for sweeping the debris into a debris collection box and a fan for pulling said debris into said debris collection box without the need for a motor in the cleaning vehicle. Each of the rotation brushes, the sweeping brush, and the fan are rotatably connected to a rear wheel of the cleaning vehicle such that when the cleaning vehicle is moved, the brushes and fan are rotated. The cleaning vehicle further includes a vertical adjustment for the rotation brushes to lift them when they are not needed, a lateral adjustment for the rotation brushes to adjust a width of sweeping, an audible warning for pedestrians, a water sprinkler system to aid in the cleaning process, and a large-scale trash removal brush mounted in front of the cleaning vehicle to push large-scale trash.

Abstract: A wheel driven suction nozzle having an upper body attached to an under body. An opening is formed at a front of the upper body which provides access to a suction cavity. An agitator covered with a fluff material is removably rotatably mounted within the cavity and extends partially out a bottom of the under body to clean and shine bare floors. A cover is hingedly mounted to the upper body and movable between an open position which provides access to the cavity and allows for removal of the agitator, and a closed position which covers the cavity and prevents removal of the agitator. A cogged front pulley is attached to one end of the agitator. A cogged belt is driven by a rear cogged pulley and engages the front pulley whereby rotation of the rear pulley rotates the agitator. A front gear is rigidly connected to the rear pulley and engages a rear gear which is rigidly connected to an axle shaft.

Abstract: A rotating hair brush comprised of a handle portion having a detent projection formed on an end portion thereof and a slot formed in an opposing side therefrom. A rotating brush portion has a plurality of bristles extending radially therearound. The rotating brush portion has a shaft portion dimensioned to be rotatably received within the handle portion. A rotation lock portion has a shaft portion dimensioned to be received within the handle portion. The shaft portion has a first detent and a second detent formed therein. The first detent and the second detent selectively cooperate with the detent projection of the handle portion.

Abstract: A free form hair care brush is provided, which consists of a handle with a collar formed on one side of the handle and a shaft extending from the collar. A bristle attachment is rotatively positioned onto the shaft. A retainer cap is mounted onto a distal end of the shaft opposite from the collar, to keep the bristle attachment on the shaft. A rotating action of the bristle attachment will glide through hair rather than pull the hair, thereby making hair styling easier and reduce hair damage.

Abstract: A swimming pool scrubber has a handle adapted for receiving an extension handle. Attached at an angle to the handle is a ball. Rotatably mounted on the ball by a socket is a rubbery disc. Removably mounted on the front face of the disc is an abrasive cleaning pad with holes for a supply of cleaning compound. The disc has a high friction edge for rolling on the bottom of a swimming pool gutter while the pad is against the vertical wall of the gutter. The edge friction causes the pad to rotate as it moves along the wall for enhanced scrubbing action.

Abstract: A rotary toothbrush comprises a round brushhead having at least one projection, bristles on the roundbrush head, a grip, a shaft extended from the grip and eccentrically, rotatably mounted to the round brushhead, whereby the toothbrush can perfectively clean the teeth.

Abstract: A mechanism for protecting an eavestrough against the accumulation of leaves and other debris. Apertured cover plates are positioned along the eavestrough to intercept water descending from the roof into the trough. The water passes through the apertures, while the debris is trapped on the cover plate surface. Debris accumulations on the cover plate can be removed by a sweeper mechanism that is movable longitudinally along the cover plate surface. An angled blade on the sweeper mechanism plows the debris forwardly off the front edge of the cover plate.

Abstract: A toothbrush having one or more wheel members with radially disposed bristles adapted to roll into contact with tooth surfaces. End plates on the wheel member inhibit bristle deflection. In a multiple wheel member version an intermediate wheel member serves to confine bristles against displacement. Side plates carry a spindle for the wheel member or members. A curved guard extends partially about the wheel members.

Abstract: This invention relates to an automatic chalk-powder collecting device for blackboard eraser; it mainly comprises a body portion, two symmetrical side covers, a powder box, and a powder-collecting assembly. By means of the aforesaid structure and a one-way brake switch in the powder-collecting assembly, the rollers of this invention are controlled to rotate in one direction only. When the present invention is erasing a blackboard back and forth same as a conventional eraser does, the chalk powder on the rubbing cloth can be cleaned automatically and simultaneously. It is deemed that the present invention has greatly improved the drawbacks of the conventional eraser, which must be beaten or cleaned repeatedly in use to cause a lot of powder flying in the air.

Abstract: A manually operated cleaner is provided with a body in the form of a box-shaped container having a removable lid and a bottom wall. Two parallel openings are provided through the bottom wall of the container. A roll brush is mounted to project out of one opening and a rotatable semicylindrical brush body is mounted for pivotable movement between two stop members with one of its surfaces including inclined bristles projecting through the other opening. A dust removing brush member having bristles inclined toward the interior of the container is pivotably mounted to the container and urged by spring means to maintain sliding contact with the bristles on the brush body.

Abstract: An improved blackboard eraser used for automatically erasing the chalk dust comprises a housing, in which several sets of brushes and rollers in number corresponding to the brushes are installed. The rollers are made of suitable chalk-erasing material and the bottom contacts the brushes, so that the brushes can erase the chalk dust on the rollers, then they let the chalk drop down into the trough, when the rollers are rotating. This method avoids the chalk dust flying in the air. The gear means are installed on each side of the rollers. Furthermore, the gear means are connected with the idle gears on two sides of the housing to form a gear system. The RPM between the rollers are different due to the different number of the gear teeth between the gear means and the idle gears; then a friction effect is generated because of the different speeds between them, so that the erasing effect for the blackboard is improved.

Abstract: A hair brush having bristles attached to a member which is rotatable with respect to a handle, together with a method of making and assembling a hair brush comprised of only two separate members, is disclosed. A surface on the member is provided between the handle and the bristles. The person holding the handle may apply force with a finger or thumb against the surface to brake as desirable relative motion between the handle and the bristles. A mechanical braking mechanism for providing a constant drag on the relative motion is optional.

Abstract: A hair styling and grooming implement for use with the hair blow dryer essentially comprises two pieces, a hair engaging member and a handle. The member is mounted on the handle and both are capable of freely rotating along a common longitudinal axis relative to each other. The handle includes a locking means and releasing means which prohibits relative rotational movement between the handle and member and which holds the handle and member in selective rotational orientation or allows free relative rotation, to permit easy disengagement of the brush from the hair. The hair engaging member includes several rows of bristles on a brush holder which untangles the hair and holds the hair in order to wrap it around the body of the member. The member also includes beveled flanges which direct the hair onto the brush as the hair is drawn around the body of the member.

Abstract: A toothbrush is provided with bristles to brush and clean the teeth. Since there are cavities between neighboring teeth it is useful to exercise a multidirectional brushing of the teeth and cavities. The handle of the tooth brush is therefor provided with a fluid motor which is driven by fluid, for example by fluid from the water pipe which is available in the living quarters. The fluid motor revolves a rotary member wherein a space with a therein reciprocable piston is provided. The piston rod engages one end of a lever of a transfer arrangement and swings the lever. The other end of the lever then swings the outgoing shaft of the housing. By attaching a tooth brush to the swinging outgoing shaft the brush can do a multi directional movement for better brushing of the teeth and the cavities between the teeth.

Abstract: A device for painting wallpaper-like patterns on walls and other flat surfaces. The device comprises a container for holding paint as well as a series of feeder rollers for feeding paint onto the embossed surface of a pattern roller. Additional means, independent of the pattern roller, provides turning power to rotate the feeder rollers at the same linear speed as the pattern roller.

Abstract: An automatic dust-removing eraser of a rolling-friction type for use on a blackboard includes: a casing body having an open section or cavity in the central portion; a plurality of different guiding slots vertically formed at both ends of the side walls defining the open section; a spare space provided at each end portion with an escape clack valve and a discharge door respectively disposed in the opposing side walls defining the spare spaces; a pair of supporting members each having integrally-linked parallel plates respectively secured in the guiding slots of the casing body; and a plurality of master rollers and slave rollers mounted within the cavity in interrelated coupling; so that, by means of the matched rotation of the master and slave rollers and the unilateral check action effected from the supporting members, the chalk dust gathered by the master rollers over the surface of the blackboard is automatically removed through self-brushing and discharging action of the slave rollers.

Abstract: An electrically heated hair curling iron includes a handle with a tubular electric heating element having a first end adjacent the handle, a second and spaced outwardly from the handle, and an outer peripheral surface provided with a plurality of accurately spaced grooves extending longitudinally between the first end and the second end. A removable hair grooming attachment is mounted on the heating element and includes an annular frame having a plurality of accurately spaced longitudinal support bars slidably engaged in the grooves through a first frame end having an inner diameter larger than that of the heating element. The opposite end of the frame has an inner diameter less than that of the heating element and abuts the second end of the element to limit the sliding movement of the attachment toward the handle and a detachable fastener extends through the abutting ends of the frame and heating element to secure the frame in place.

Abstract: An electrically heated hair curling brush includes a generally cylindrical elongated handle having an elongated, thermally non-conductive brush support rotatably mounted within the handle and axially extending therefrom. An electric PTC heating element is housed within a brush cylinder non-rotatably mounted on the axially extending portion of the brush support. An elastically deformable elliptical locking ring within the handle surrounds the brush support and has a protrusion on the inner surface of each of its long sides engageable in recesses formed in the confronting surface of the brush support to lock the handle and brush support together so as to prevent relative rotation therebetween. A manually depressible button on one of the short sides of the locking ring projects through an opening in the handle.