the following description of the preferred embodiment ( s ) is merely exemplary in nature and is in no way intended to limit the invention , its application , or uses . the present invention is a device comprising a solid or hollow cylindrical member that is capable , upon rotation of the cylindrical member , of snagging , pulling or entangling the hair trapped within the bristles of a hairbrush . in some embodiments , the device consists substantially of the solid or hollow cylindrical member . fig1 shows various embodiments of the device of the invention . in one embodiment , the device of the invention comprises at least one hook 11 or projection 10 attached to the cylindrical member that is capable of entangling at least one hair within the hairbrush . once the first hair becomes entangled , the continuing rotation of the cylindrical member will cause such hair to become wrapped around the member , further entangling additional hairs . thus , for example , the hook 11 , which may be perpendicular or co - linear with the longitudinal axis of the cylindrical member , serves as an initial hooking mechanism to entangle the hair of the hairbrush . in a particular embodiment , the cylindrical member of the device of the invention is a straight , long , thin shaft with a hook at its end , as shown in device 3 . in another particular embodiment the cylindrical member is a long , thin shaft comprising one or more bends , kinks or twists along its length ( for example , device 4 ), and such bends , kinks , or twists serve as the initial hooking mechanism . in a particular embodiment , the cylindrical member has a spiral or corkscrew shape . in another embodiment , the cylindrical member of the device itself has a plurality of knobs , ridges or rises 9 on its surface that can act to help entangle hair ( for example , device 1 , shown in cross - section ). in one embodiment , the present invention comprises a solid or hollow cylindrical member with its circumferential surface partially or fully covered by a plurality of projections 10 ( e . g ., bristles , hooks , spikes , prongs ), the projections capable , upon rotation of the cylindrical member , of snagging , pulling or entangling the hair trapped within the bristles of a hairbrush . once the first hair becomes entangled , the continuing rotation of the cylindrical member will cause such hair to become wrapped around the device , further entangling additional hairs . for example , in fig1 , such embodiments include devices 2 , 6 , and 7 . in one embodiment , the entire circumferential surface of the cylindrical member of the device of the invention is covered by such projections ( as in device 6 ). in another embodiment , the present invention comprises a solid or hollow cylindrical member with its circumferential surface partially or fully covered with an adhesive material or an abrasive material ( for example , device 8 ). such adhesive material would be capable of snagging and entangling hairs from a hairbrush by virtue of its stickiness , while such abrasive material ( e . g ., sandpaper - like ) would be capable of snagging and entangling hairs by virtue of its roughness ( high coefficient of friction ). in another embodiment , some terminal portion of the cylindrical member of the device of the invention ( e . g ., the terminal 10 mm of the cylindrical member ) is free of projections , enabling the user to grasp the cylindrical member without encountering the bristles . for example , in devices 7 and 8 , the region 14 is free of projections or adhesive / abrasive material . the device of the invention may consist of one or more component parts connected together in a way as to form the entire device of the invention . for example , the cylindrical member of the device of the invention may consist of a solid or hollow cylindrical core to which the surface covered with a plurality of projections is attached by an adhesive mechanism . in a preferred embodiment , the device of the invention is sized such that it can conveniently be inserted along its longitudinal axis into the space between the bristles of a hairbrush . for example , the cylindrical member of the device of the invention may have an external diameter , including any surface projections , of from 0 . 25 mm to 15 mm , preferably from about 1 mm to 15 mm , more preferably from about 3 mm to about 12 mm , more preferably from about 4 mm to about 10 mm , still more preferably from about 5 mm to about 10 mm , and most preferably from about 6 mm to about 8 mm ; and a length of from about 5 mm to about 200 mm , preferably from about 5 mm to about 100 mm , more preferably from about 5 mm to about 50 mm , more preferably from about 10 mm to about 40 mm , and most preferably from about 20 mm to about 40 mm . in a particular embodiment , wherein the cylindrical member of the device of the invention consists essentially of a long , thin shaft , optionally containing a hook at one end , wherein the shaft is optionally straight , kinked , twisted , spiral or contains one or more bends , the device of the invention has a diameter of the shaft of about 0 . 25 to 2 mm , preferably 0 . 5 to 1 mm , and a length of 20 to 200 mm , preferably 40 to 100 mm , still more preferably 50 to 75 mm . where such device contains a hook at one end , said hook extends radially to a distance of 0 . 1 to 10 mm , preferably 0 . 2 to 5 mm , and more preferably 0 . 4 to 3 mm . the device of the invention may be made of any suitable material , including but not limited to , one or more of : metal ( e . g . aluminum , titanium , iron , copper , tin , silver , nickel , or any mixtures or alloys thereof ), synthetic polymers or plastics ( e . g ., polyethylene , polypropylene , polystyrene , polyvinyl chloride , polyacrylonitrile , nylon ), and natural polymers ( e . g ., cellulose ). synthetic polymers can include straight - chain or branched polymers , high - or low - density polymers , semi - synthetic polymers , and polymers comprised of different monomeric units ( e . g ., copolymers ). any such polymers may comprise additional chemical additives such as what are known to those skilled in the art , including but not limited to , plasticizers , dyes , anti - oxidants , and coatings . natural and semi - synthetic polymers may have the added benefit of being biodegradable . in a preferred embodiment , the device of the invention is made of polyethylene or polypropylene . the device of the invention may also be made of more than one material , consisting as it may of components attached to each other by means known to those skilled in the art , such as by the use of adhesive materials . in such embodiments , the different materials may be chosen for their different properties . for example , a cylindrical core may be constructed of a material with high strength and little or no flexibility , while an outer layer containing any hooks or projections or adhesive or abrasive may be constructed of a material with higher flexibility and less strength . in a preferred embodiment , at one end the cylindrical member of the device of the invention is fitted with a structure capable of attachment to a means for rotation . such means for rotation may be , for example , a shaft attached to a handle ( e . g ., a screwdriver - type handle 15 ), whereby a user could grasp said handle and thereby insert the device of the invention between the bristles of the hairbrush , and upon manual rotation of the handle , the device of the invention will snag , pull or entangle the hair trapped in the hairbrush , enabling removal of said hair . preferably , where the cylindrical member of the device of the invention contains a terminal portion free of bristles , said structure is located at the end of the cylindrical member that is free of bristles , in order to allow easier grasping of the device of the invention while attaching it to the means for rotation . the mechanism by which the device of the invention attaches to the means for rotation can be any of those commonly found in the mechanical arts including , but not limited to , couplings ( e . g ., shaft couplings , sleeve couplings ), screw - and - thread fittings , male and female tapered fittings ( e . g ., slip tip ), tongue - in - groove fittings , or slotted fittings . in some embodiments , the device of the invention attaches to the means for rotation in like manner to a slotted , phillips head , square - head or hex - head or other screwdriver attaching to the corresponding screw . as shown in fig2 , in some embodiments , the device of the invention 18 is attached to an adaptor 17 , and the adaptor is attached to the means for rotation ( e . g ., a means for rotation such as 16 ). in another embodiment , the means for rotation is a hand - powered means for rotation , such as a bow drill , a hand drill , a push drill or other drill using a spiral ratchet mechanism . in some embodiments , the means for rotation operates by a mechanism in which the user creates non - rotational motion that the means for rotation converts to rotational motion at the point of attachment of the adaptor , if there be one , or the device of the invention . in another embodiment , the means for rotation is an electrically - powered means for rotation , such as a battery - powered or ac - powered drill ( as depicted in fig2 , 16 ) or drill - like device ( e . g ., a powered screwdriver ). in some embodiments , the device of the invention may require an adapter in order to be attached to a hand - powered or electrically - powered means for rotation . for example , in order to use any drill with a chuck , e . g . the standard 3 - jaw chuck , the device of the invention would be attached using an adapter which at one end secures the device of invention , and at the other end consists of a metal or plastic shank of hexagonal cross - section . in some embodiments , the device of the invention may be used with a universal adapter , i . e ., one that can allow attachment of the device of the invention to a variety of means for rotation . by separating the means for rotation ( e . g ., 16 ) from the device of the invention ( e . g ., 18 ), the great benefit is achieved that the device of the invention itself is small , cheap and disposable . a consumer can expend one device with each cleaning of a hairbrush , while retaining for future use whatever means for rotation is chosen ( whether it be manual or powered ). in addition , the consumer has the flexibility to change the means of rotation used without having to acquire new or different devices of the invention . in certain embodiments of the invention , the device of the invention is sold to a consumer packaged along with a manual handle - type means for rotation , and / or along with one or more adapters capable of attaching the device of the invention to various hand - powered or electrically - powered means for rotation . in some embodiments , the device of the invention may be used to remove human hair or animal hair from hair brushes , e . g ., dog , cat or horse hair from grooming brushes , as shown in fig3 . in other embodiments , the device of the invention may be used to remove natural or synthetic hair - like substances from brush - like devices , for example , devices that accumulate natural or synthetic fibers during the course of manufacture of said fibers or manufacture of products ( e . g ., clothing ) containing such fibers . in another aspect , the present invention includes a method of removing hair from a hairbrush that comprises inserting into a brush for grooming of hair ( e . g ., a hairbrush , 19 ) a device ( for example , a device of the invention 20 ) comprising a rotating part that is capable , upon rotation of such part , of snagging , pulling or entangling the hair that is trapped within the brush , and causing said part of the device to rotate . this method is demonstrated in fig4 , wherein the device is a device of the invention 20 . such a method may comprise the steps of : attaching said device 20 to a means for rotation , inserting the device into a brush 19 for grooming hair , causing the cylindrical member of the device to rotate , thus entangling and removing the hair 21 that is trapped within the bristles 22 of the hair brush , then causing the cylindrical member to stop rotating , and removing the device from the hairbrush . as shown in fig4 , the result is that the hair removed from the hairbrush 23 is now wrapped around the cylindrical member of the device 24 . the method may further comprise the steps of separating the device from the means for rotation , and then , optionally , either cleaning the trapped hair off of the device or discarding the device . preferably , a user may move the cylindrical member of the device about within the hairbrush while causing it to rotate , thus ensuring that most or all of the hair trapped in the hairbrush becomes entangled on the device and removed . a user may also reverse the order of some of the steps described above . for example , the method may be practiced by first causing the cylindrical member to start rotating , and then inserting the device into a brush for grooming hair . similarly , the method may be practiced by removing the device from the brush and then causing the cylindrical member to stop rotating . in a particular embodiment , the device used in the above described method , in any of its embodiments , is a device of the present invention . in all embodiments of the present invention , the cylindrical member of the device of the invention undergoes active rotation in its operation at the direction of the user , rather than passive rotation , as would occur if a freely rotatable cylindrical device were to be brushed across the surface of a hairbrush . as used herein , the term “ circumferential surface ” of a cylinder refers to the outward facing surface along the long axis of the cylinder , that surface which is distinct from the two circular surfaces that form the ends of the cylinder . as used herein , “ cylinder ” and “ cylindrical ” include the traditional right circular cylinder , as well as variations of such , including tapered cylinders in which the two circles that form the opposite ends of the cylinder are of different radii , and shapes substantially resembling cones , as by progressively shrinking the radius of one end of a cylinder . in addition , “ cylinder ” and “ cylindrical ” also embrace shapes substantially similar to cylinders whose cross - section is an ellipse , a triangle , or square , a rectangle , a pentagon , a hexagon , or any other regular or irregular polygon . in addition , “ cylinder ” embraces the shapes described above across the entire range of length - to - diameter ratios that can be envisioned , from those that are very short and wide ( e . g ., with a length - to - diameter ratio of about 1 or less ), to those that are very long and thin ( e . g ., with a length - to - diameter ratio of greater than 1 , or greater than 5 , or greater than 10 , or greater than 50 , or greater than 100 , or greater than 1000 ). as used herein , the term “ diameter ” refers to the largest cross - sectional diameter . for a radially symmetrical cross - section ( e . g ., a circle ), there is only one such diameter . for a non - radially symmetrical cross - section ( e . g ., an ellipse or a regular polygon ), there is more than one such diameter , and the term “ diameter ” as used herein is to refer to the largest of such diameters . for example , for an elliptical cross - section , the diameter thereof , as used herein , is the major axis ( or transverse diameter ), while for a hexagonal cross - section , the diameter thereof , as used herein , is the distance between opposite vertices . as used herein , “ rotation ” refers to axial rotation . as applied to , for example , the cylindrical member of the device of the invention , axial rotation refers to rotation about the long axis of the member . rotation may refer to continuous or intermittent rotation , and may refer to clockwise or counterclockwise rotation , or a combination thereof . for example , the means for rotation may cause the cylindrical member of the device of the rotation to rotate in a certain sequence ( e . g ., two rotations clockwise then one rotation counterclockwise , repeating ; or any other sequence ). as used throughout , ranges are used as shorthand for describing each and every value that is within the range . any value within the range can be selected as the terminus of the range . in addition , all references cited herein are hereby incorporated by referenced in their entireties . in the event of a conflict in a definition in the present disclosure and that of a cited reference , the present disclosure controls .
the present invention provides an improved device for the removal of hair from hairbrushes . in a particular embodiment , the device of the invention itself is both cheap , transportable and disposable .