Patent Publication Number: US-2023148739-A1

Title: Filamentous abrasive crevice cleaner

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application also claims the benefit of U.S. Provisional Application Ser. No. 63/264,077, titled “Filamentous Abrasive Crevice Cleaner,” filed by Alexander Northcutt and Ben Northcutt, on Nov. 15, 2021. 
     This application incorporates the entire contents of the foregoing application(s) herein by reference. 
    
    
     TECHNICAL FIELD 
     Various embodiments generally relate to cleaning objects. 
     BACKGROUND 
     Cleaning removes unwanted substances from an object or environment, such as dirt, infectious agents, and other impurities. Swabs are handheld items that consist of one or two wads of material wrapped around one or both ends of a short rod made of wood, rolled paper, or plastic. Cotton swabs may be used as a cleaning tool for household purposes. Steel wool may be useful in cleaning and polishing metal for functional or ornamental purposes. Often polishing and buffing with an abrasive are the finishing processes for smoothing a workpiece&#39;s surface. Polishing may remove oxidation to create a reflective surface or prevent corrosion on metal surfaces. Polished metal surfaces may be coated with wax, oil, and/or lacquer to avoid unwanted oxidation of the metal. 
     SUMMARY 
     Apparatus and associated methods relate to a fibrillous abrasive crevice cleaner (FACC). In an illustrative example, a fibrillous abrasive tip may be made of a continuous combination of steel wool and wire. For example, the FACC may include a twisted multistrand handle extending from a distal end to a proximal end along a longitudinal axis. The FACC may include a continuous fibrillous mass fixedly coupled about the distal end of the twisted multistrand handle, such that the fibrillous mass forms a knot distal to the proximal end of the twisted multistrand handle. For example, the FACC may include a proximal end of the fibrillous mass captured between the twisted multistrand handle. The formed knot around the distal end of the twisted multistranded handle and the fibrillous mass being entwined into the handle may, for example, advantageously resist decoupling of the fibrillous mass from the twisted multistrand handle. 
     Various embodiments may achieve one or more advantages. For example, some embodiments and associated methods may, for example, include the creation of a double-sided abrasive cleaner. Some embodiments may, for example, involve using various-sized abrasive tips. Some embodiments, for example, may include an exemplary magnetic FACC. Some embodiments, for example, may have an exemplary double-sided FACC with a flex shaft. Some embodiments, for example, may include an exemplary injectable FACC. Some embodiments, for example, may include adjusting the length of a FACC. Some embodiments, for example, may include an insertion mechanism for coupling a stem and a fibrillous abrasive tip. 
     The details of various embodiments are outlined in the accompanying drawings and the description below. Other features and advantages will be apparent from the description, drawings, and claims. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1 A  depicts an exemplary fibrillous abrasive crevice cleaner (FACC) employed in an illustrative use-case scenario with a close up quarter sectional view of the abrasive tip of the FACC. 
         FIG.  1 B  depicts a close-up sectional view of an exemplary FACC employed in an illustrative scenario. 
         FIG.  2 A  is an illustrative method for fixedly coupling a continuous fibrillous mass to a twisted multistrand handle creating a FACC. 
         FIG.  2 B  depicts a flowchart for an exemplary method for fixedly coupling a continuous fibrillous mass to a twisted multistrand handle creating a FACC. 
         FIG.  2 C  is an illustrative method depicting the creation of an exemplary knot in a FACC. 
         FIG.  2 D  is a flowchart depicting an exemplary method used to create an exemplary knot in a FACC. 
         FIG.  3 A  is an illustrative method to create a second abrasive tip with a second fibrous material in a FACC. 
         FIG.  3 B  is a flowchart depicting an exemplary method used to create a second abrasive tip with a second fibrous material in a FACC. 
         FIG.  4 A  is an illustrative method to create a second abrasive tip in a FACC. 
         FIG.  4 B  is a flowchart depicting an exemplary method used to create a second abrasive tip in a FACC. 
         FIG.  5 A  is an illustrative method for attaching a fibrillous mass to create a second abrasive tip in a FACC. 
         FIG.  5 B  is a flowchart depicting an exemplary method for attaching a fibrillous mass to create a second abrasive tip in a FACC. 
         FIG.  6    shows cross-sectional views of an array  600  of exemplary filament tips of various shapes and sizes. 
         FIG.  7 A  and  FIG.  7 B  show exemplary embodiments of a double-sided FACC. 
         FIG.  8    shows an exemplary magnetic FACC. 
         FIG.  9    shows an exemplary double-sided FACC with a flex shaft. 
         FIG.  10    shows an exemplary injectable FACC. 
         FIG.  11    shows an exemplary length adjustable FACC. 
         FIG.  12    shows an exemplary FACC, including an insertion mechanism for coupling a stem and a fibrillous abrasive tip. 
     
    
    
     Like reference symbols in the various drawings indicate like elements. 
     DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS 
     To aid understanding, this document is organized as follows. First, to help introduce a discussion of various embodiments, a cleaning system using an exemplary fibrillous abrasive crevice cleaner (FACC) is presented in  FIG.  1 A-B . Second, regarding  FIG.  2 A- 5 B , this document describes exemplary apparatus and methods useful for making a FACC. Third, that introduction leads into a description regarding  FIGS.  6 - 7 B  of some exemplary embodiments of an exemplary FACC. Finally, relating to  FIGS.  8 - 12   , the discussion turns to exemplary embodiments that illustrate various implementations of an exemplary FACC. 
       FIG.  1 A  depicts an exemplary FACC  100  employed in an illustrative use-case scenario. In this illustrative scenario, the FACC  100  removes deposits within a cavity  105  of an object  110  by entering a narrow crevice  115  of the object  110 . For example, the object  110  may be a carburetor tube having a narrow crevice (e.g., a ledge with an inner corner). The object may, for example, come from a motor vehicle  120 . The motor vehicle may, for example, be a boat, a bus, a car, a lawnmower, or a plane. In some examples, the deposit may be hardened fuel sediments deposited on an inner surface of the carburetor tube. 
     As shown in  FIG.  1 A , the FACC  100  includes a fibrillous abrasive tip  125  and a multistrand handle  130 . In some implementations, other fibrillous abrasive materials strong enough to remove deposits from the cavity  105  may be used. For example, the fibrillous abrasive tip  125  may be steel wool. For example, a brass wool swab may be used for the abrasive tip. 
     An exploded quarter-sectional close-up view  135  of the interlocking of the abrasive tip  125  and the multistrand handle  130 . A fibrillous mass  140  is coupled continuously along the multistrand handle  130 . The fibrillous mass  140  forms a knot  145  along the bending tip of the multistrand handle  130 . 
       FIG.  1 B  depicts a close-up sectional view of an exemplary FACC employed in an illustrative scenario  150 . In illustrative scenario  150 , the FACC  100  may be applied. The FACC  100  may be pressed upon with a force F on the object  110 . The FACC  100  includes the fibrillous abrasive tip  125 . The abrasive tip  125  may include the twisted multistrand handle  130 . The fibrillous abrasive tip  125  may include the fibrillous mass  140 . The fibrillous mass  140  may form a knot  145  around the twisted multistrand handle  135 . 
     As the force F is applied to the FACC, the fibrillous mass prevents the twisted multistrand hand from contacting the object. The fibrillous mass may prevent unintended scarping of the twisted multistrand handle against an object. The twisted multistrand handle  130  and the object  110  are set apart at a distance d. The distance d shows a buffering zone between the object  110  and the multistrand handle  135 . The buffering zone may be created by including the fibrillous mass separating the multistrand handle. 
     In various embodiments, the fibrillous abrasive materials may be conformable to narrow crevices  115 . For example, different abrasive filaments may be suitable for cleaning reactive chemicals. 
     Some implementations may attach abrasive grit materials to the fibrillous abrasive tip  125 . For example, the fibrillous abrasive tip may include a non-abrasive polymeric filament and abrasive grits attached to and/or embedded in the polymeric filament. For example, the abrasive grits may facilitate deposit removal in the cavity  105 . 
     In some examples, the abrasive grit may include garnet, diamond, silicon carbide, aluminum oxide, and/or other abrasive grit materials. Various abrasive grits may be suitable for cleaning different surfaces and/or deposits in multiple implementations. 
     In this example, the fibrillous abrasive tip  125  has a teardrop shape. In some implementations, the teardrop-shaped fibrillous abrasive tip  125  may provide a substantial surface area for removing deposits in the cavity  105 . In some examples, the teardrop-shaped fibrillous abrasive tip  125  may provide a buffer between the handle  130  and the surface of the fibrillous abrasive tip  125 . For example, the buffer may prevent the handle  130  from displacing through the fibrillous abrasive tip  125 . 
     In various embodiments, the handle  130  may be malleable to reach within cavities and through crevices of multiple shapes. The handle  130  may, for example, be a wire handle. The handle  130  may, for example, be a bendable brass wire handle. For example, the brass wire handle may be scrape resistant to the cavity  105 . For example, the cavity  105  may remain unscratched when the wire handle  130  is scraped against the surface of the cavity  105 . 
     Accordingly, the FACC  100  may, for example, be used to clean fuel sediments within a cavity through a narrow cervix. In some implementations, the FACC  100  may advantageously be strong enough to remove substantially uniformly harder deposits on a surface of the cavity  105  while significantly preventing damage to the cavity surface. 
     In some embodiments, an opposite end of the FACC from the fibrillous abrasive may, for example, be coated. The coating may be a polymer. For example, the coating may be a (curable) liquid polymer. In some embodiments, the coating may, for example, advantageously prevent injury to a user by sharp and/or exposed ends of a twisted multistrand handle 
       FIG.  2 A  is an illustrative method for fixedly coupling a continuous fibrillous mass to a twisted multistrand handle creating a FACC.  FIG.  2 B  depicts a flowchart for an exemplary method for fixedly coupling a continuous fibrillous mass to a twisted multistrand handle, making a FACC. 
     Both  FIG.  2 A  and  FIG.  2 B  illustrate exemplary method  200  for making a FACC by mechanically combining fibrillous mass and a wire handle. In this example, a wire is prepared in step  205 . For example, the wire may be a brass wire. In various implementations, the wire may be a malleable material suitable for bending and twisting. In some embodiments, the wire may, for example, be a steel wire. In some embodiments, the wire may be stainless steel. Such embodiments may, for example, advantageously reduce or eliminate a chemical reaction of the handle with chemicals the FACC is exposed to during cleaning. In some embodiments, the handle may, for example, be a malleable polymer. 
     Next, in step  210 , a fibrillous abrasive material is captured in the wire. In step  215 , the fibrillous abrasive material is tightly wrapped around the wire. In some examples, the fibrillous abrasive material may be steel wool. 
     In step  220 , the wire is twisted, and the fibrillous abrasive material&#39;s loose ends are twisted along with the wire. In some examples, the loose ends of the fibrillous abrasive material may create a mechanical bind for the twisted wire. 
     In step  225 , the wire is twisted tightly to form a handle for the FACC. For example, the fibrillous abrasive material may form a teardrop shape. Finally, in step  230 , both ends of the twisted wire are tied together to provide easy handling and hide the wire&#39;s sharp ends. Accordingly, the FACC  100  may be manufactured substantially mechanically. For example, the attachment between the stem and the fibrillous abrasive tip may advantageously be resistant to chemicals and/or solvents. 
     In various embodiments, the exemplary method  200  may, for example, be performed manually. In some embodiments, the exemplary method  200  may, for example, be at least partially performed automatically. For example, a robotic cell may be configured to cut and/or shape the wire. For example, the fibrillous abrasive material may be blown and/or sprayed on the wire. In some embodiments, an end effector (e.g., a gripping tool or a chuck) may engage the wire (e.g., at the ends) and twist the handle, as shown in steps  220 - 225 . Such embodiments may, for example, advantageously reduce manufacturing costs and/or increase manufacturing speed. 
       FIG.  2 C  is an illustrative method depicting the creation of an exemplary knot in a FACC.  FIG.  2 D  is a flowchart depicting an exemplary method used to create an exemplary knot in a FACC. Both  FIG.  2 C  and  FIG.  2 D  illustrates an exemplary method  235  for knotting the fibrillous mass to a twisted multistrand handle. For example, in exemplary step  240 , a fibrillous mass  240   a  is pulled into the fold ends of a wire  240   b.    
     Next, in step  245 , the fibrillous mass becomes a knotted fibrillous mass  245   a . In step  250 , the fibrillous mass is wrapped around itself to form a first loop  250   a . In step  255 , the fibrillous mass is wrapped around itself again to form a second loop  255   a.    
     In step  260 , the tag ends  260  of the fibrillous mass are pulled tight to sinch down first loop  250   a  and second loop  255   a  to form a wrapped fibrillous mass  255   b . In step  265 , the tag ends  260   a  of the fibrillous mass are wrapped around the fold ends of a wire  240   b.    
     Next, in step  270 , the fold end of the wires  240   b  are twisted to form a twisted multistrand handle, with the fold ends of the wire becoming crimped wires  270   a.    
     In step  275 , the fold ends of the wire  240   b  and may be wrapped around a twisted handle  275   a . The twisted handle may, for example, be created by twisting the manifolds to any length by twisting the fold ends of the wire. By way of example and not limitation, the length of the twisted wire may be between 3-6 inches. 
     In step  280 , the tag ends  260   a  of the fibrillous mass, and any extra fold ends of the wire  240   b  are cut completely from the twisted handle  275   a.    
     In various embodiments, the exemplary method  235  may, for example, be performed manually. In some embodiments, the exemplary method  235  may, for example, be at least partially performed automatically. For example, a robotic cell may be configured to cut and/or shape the wire. For example, the fibrillous abrasive material may be blown and/or sprayed on the wire. In some embodiments, an end effector (e.g., a gripping tool, a chuck) may engage the wire (e.g., at the ends) and twist the handle, as shown in steps  270 - 275 . Such embodiments may, for example, advantageously reduce manufacturing costs and/or increase manufacturing speed. 
       FIG.  3 A  is an illustrative method  300  used to create a second abrasive tip with a second fibrous material in a FACC.  FIG.  3 B  a flowchart depicting an exemplary method  300  used to create a second abrasive tip with a second fibrous material in a FACC. In step  305 , a twisted wire handle  305  is prepared. This may, for example, include the creation of an abrasive tip by knotting fibrillous mass to a distal end of a twisted multistrand handle, as outlined in  FIG.  2 A- 2 D . 
     In step  310 , the proximal end of the twisted is bent. The bending may, for example, allow a second fibrillous abrasive to couple the proximal end of the FACC. In step  315 , couple a second fibrillous abrasive to the proximal end of the FACC. Next, in step  320 , form a first loop with the tag ends of the fibrillous abrasive around the bent proximal end of the FACC. In step  325 , for a second loop with the tag ends of the fibrillous abrasive around the bent end of the FACC. Next, in step  330 , form an abrasive tip by continuously twirling the tag ends of the abrasive material  330   a  around the proximal end of the twisted multistrand handle. The abrasive tip size and shape may be altered to suit different functionalities. Such functionalities may include polishing jewelry, cleaning a carburetor, or polishing other objects. Next, in step  335 , bend the proximal end of the twisted multistrand handle unto itself. Pressure from bending the proximal handle to itself may keep the second abrasive tip from falling apart. In step  340 , cut away the excess fibrillous mass. 
       FIG.  4 A  is an illustrative method  400  used to create a second abrasive tip in a FACC.  FIG.  4 B  a flowchart depicting an exemplary method  400  used to create a second abrasive tip in a FACC. Exemplary method  400  begins with an embodiment of a FACC, including a twisted multistrand handle  400   a . The proximal end of the twisted multistrand handle includes fold wire ends  400   b . The twisted multistrand handle  400   a  may, at its distal end, contain a first abrasive tip  400   d . The twisted multistrand  400   b  may contain fibrillous mass tag ends  400   c  from forming the first abrasive tip  400   d . The formation of the first abrasive tip  400   d  may, for example, be shown in  FIGS.  2 A- 2 D . 
     In step  405 , the tag ends  400   c  of the fibrillous mass and may first loop around the proximal fold wire ends  400   b . In step  410 , a second loop may be formed with the tag ending  400   c  of the fibrillous mass. In step  415 , a second abrasive tip  415   a  may form. After forming the second abrasive tip  415   a , there may be excess tag ends  415   b  of fibrillous mass. In step  420 , excessive tag ends  415   b  of fibrillous mass is removed from the second abrasive tip. In step  425 , an adhesive, pressure, or epoxy may be applied to ensure the second abrasive tip does not fall apart. For example, pressure may be applied to the proximal fold wire ends  400   b  to bend the ends together, securing the fibrillous mass. An epoxy may coat the second abrasive tip to seal the tip. This may, for example, give a user the ability to use a chemical-resistant FACC with a first abrasive tip based on a mechanical coupling and a second abrasive tip based on a chemically induced coupling. An adhesive may, for example, be used to bind the second abrasive tip together. 
       FIG.  5 A  is an illustrative method for attaching a fibrillous mass to create a second abrasive tip in a FACC.  FIG.  5 B  is a flowchart depicting an exemplary method for attaching a fibrillous mass to create a second abrasive tip in a FACC. 
     Both  FIG.  5 A  and  FIG.  5 B  show an exemplary method  500  for attaching a filamentous material  500   c  to a multistrand shaft  500   a . In this example, the filamentous material  500   c  is captured in a filament receiving slit  500   b  composed of the fold end of the twisted multistrand wire  500   a . The twisted multistrand handle may, for example, from methods  2 A- 2 D, already have a first abrasive tip  500   d.    
     In step  505 , an abrasive material from either the twisted multistrand or a second source is twisted around the fold ends of the twisted multistrand handle with epoxy and/or an adhesive. Next, in step  510 , the twisted multistrand handle twirls the abrasive material to form a second abrasive tip. In step  515 , epoxy is added to secure the second abrasive tip before the final wrap. In the alternative, in step  515 , pressure may be applied to the fold end of the wires to seal the abrasive material. In the alternative, in step  515 , the entire second abrasive tip may be sealed with epoxy to secure the abrasive tip. Combinations of pressure, adhesive, knots and epoxy may, for example, be used to seal  515   a  the second abrasive tip. In step  520 , the base of the tip is secured. In step  520 , the second abrasive end is cleaned up, and any excess fibrillous material is removed. 
     In some embodiments, the twisted multistrand handle may be scrape resistant against cavity surfaces. In some embodiments, the twisted multistrand handle may, for example, be a polymeric shaft. Such embodiments may, for example, advantageously provide decreased cost, increased manufacturability, and/or scratch resistance. In some embodiments, the twisted multistrand handle may be a steel shaft. Such embodiments may, for example, advantageously provide bending resistance after creation. 
     In some embodiments, the attaching material may be glue. In some examples, the attaching material may be hot plastic. For example, Plasti Dip may be applied to the contact area to hold the filamentous material and the twisted multistrand together for the second tip. 
     Some embodiments may choose an attaching material according to a target application (e.g., based on solvents and/or other chemicals that the junction is expected to be exposed to). For example, the attaching material may be chosen to be resistant to expected chemicals. In some embodiments, an attaching material may, for example, be epoxy. 
     In some embodiments, the attaching material may provide a mechanical connection. For example, in some embodiments, a compression fitting may be provided. As an illustrative example, a crimp sleeve/collar may be applied partially around the proximal end of the twisted multistrand handle to mechanically capture the filamentous material to the shaft of the twisted multistrand handle. 
     In some implementations, the amount of filamentous material may depend on the size requirement of the filamentous abrasive tip. 
     In some embodiments, the fixation material may be solvent-resistant such that the fixation material may not decompose during use. In some embodiments, a fixation material may include a mechanical connection. In some embodiments, the filamentous abrasive tip may form a teardrop shape. 
       FIG.  6    shows cross-sectional views of an array  600  of exemplary filament tips of various shapes and sizes. In some implementations, a user may selectively choose a size of the array  600  of filament tips accordingly to the user&#39;s need. 
     For example, some embodiments may be advantageously configured for small applications, such as jewelry cleaning. For example, out of the array  600  an exemplary tip  605  may be used to clean a small piece of jewelry. The abrasive tip  605  is created with a narrow tip because the fold ends of the wires have no spacing. 
     In some embodiments, out of the array  600  of tips, an exemplary abrasive tip  610  may, for example, be used to clean jewelry. The abrasive tip  610  is conical. For example, the conical shape of the abrasive tip  610  may push out dirt in a piece of jewelry. 
     In some embodiments, out of the array  600  of tips, an exemplary abrasive tip  615  may, for example, be used to clean a carburetor. The exemplary abrasive tip  615  has a teardrop shape. Enclosed in the exemplary abrasive tip  615  the two ends of the distal twisted wire are acutely separated to give an abrasive tip a larger diameter. 
     In some embodiments, out of the array  600  of tips, an exemplary abrasive tip  620  may, for example, be used to clean a large surface. The exemplary abrasive tip  620  has a brush shape. Enclosed in the exemplary abrasive tip  620  the two ends of the distal twisted wire are obtusely separated to give an abrasive tip a larger diameter. Some embodiments may be advantageously configured for large applications. Some embodiments may, for example, be configured for large (e.g., &gt;3 inch) pipe fitting cleaning. In some embodiments, a tip may be configured for engine bore and/or head cleaning 
     In some embodiments, out of the array  600  of tips, an exemplary abrasive tip  625  may, for example, be used for the larger object. The exemplary abrasive tip  625  has a brush shape. Enclosed in the exemplary abrasive tip  615 , the bent proximal end of the twisted wire may be coiled to give an abrasive tip a roller functionality. The roller functionality may allow for faster cleaning. Further, the roller may be spring-like, allowing the tip to twist and bend, so the abrasive tip becomes flexible. The spring-like functionality may, for example, be beneficial to keep the abrasive tip securely coupled to the twisted wire. 
       FIG.  7 A  and  FIG.  7 B  show exemplary embodiments of a double-sided FACC  700 . In various embodiments, the double-sided FACC  700  may extend the durability of a single FACC. For example, a user may use one tip of the FACC  700  after another tip of the FACC  700  may be worn out. 
     In some implementations, as shown in  FIG.  7 B , each end of the FACC  700  may include some wool materials. In some implementations, different wool materials may be used at each end of the FACC  700 . For example, one end of the FACC  700  may be fine wool, and another end of the FACC  700  may be coarse wool. 
     In some embodiments, a double-sided FACC  700  may, for example, be configured with different size ends. For example, a small size may be used for small crevices, and a larger size may be used for larger surfaces. For example, the double-sided FACC  700  may be configured in some embodiments with different shapes. For example, one end may have a teardrop shape, and another may have a more pointed shape. 
     Accordingly, a user may use one double-sided FACC  700  to access various cavities and/or clean different deposits. 
     For example, the magnetic FACC  800  may capture steel wool filament that may fall off during use.  FIG.  8    shows an exemplary magnetic FACC  800 . The magnetic FACC  800  includes magnetic tips  805   a  and  805   b , and a shaft  810 . 
     As shown in  FIG.  8   , the magnetic tip  805   a  may include holes  815 . In some implementations, the holes  815  may allow metallic particles to pass through toward a magnet  820  in the middle of the shaft  810  of the magnetic FACC  800 . In some implementations, the magnetic tip  805   a  and the magnetic tip  805   b  may include metallic fibrillous abrasive material. For example, the metallic fibrillous abrasive material may be steel wool. In some examples, the magnetic tip  805   a  and the magnetic tip  805   b  may remove steel wool particles created during a cleaning process. Such embodiments may, for example, advantageously ‘self-clean’ debris from the FACC  800  during cleaning. For example, such embodiments may advantageously prevent metallic particles from contaminating a mechanism (e.g., clogging a carburetor jet or scoring an engine cylinder). 
       FIG.  9    shows an exemplary double-sided FACC  900  with a flex shaft  905 . In some implementations, the flex shaft  905  may include one or more flexible joints such that the flex shaft  705  may be bendable to be used in various crevices and cavities. 
       FIG.  10    shows an exemplary injectable FACC  1000 . In this example, the injectable FACC  1000  includes a cavity  1005  to store injected liquid  1005   a . In some implementations, the injected liquid may be penetrating oil for facilitating deposit removal from the cavity  105 . For example, the injected liquid may be a lubricant (e.g., WD-40). 
     In the depicted example, the liquid is injected into cavity  1005 . The liquid is injected into the cavity through a screw cap  1006 . In some implementations, the handle  130  (e.g., stem) and the fibrillous abrasive tip  125  are squeezed against the cavity  1005 , as shown by an arrow  1010  and an arrow  1015 . In some examples, the liquid is dispensed towards the fibrillous abrasive tip  1020  via a dispensing hole  1020 . 
       FIG.  11    shows an exemplary length adjustable FACC  1100 . For example, the length adjustable FACC  1100  may selectively be extended and retracted in length along a vertical axis  1105 . Along the top of the vertical axis  1105 , a distal end  1105   a  of the arrow is shown. Along the bottom of the vertical axis  1105 , a proximal end  1105   b  of the arrow is shown. In this example, a top portion  1110  of the length adjustable FACC  1100  may be selectively extended along the vertical axis  1105  as shown by an arrow  1115 . The length-adjustable FACC  1100  includes, in this example, a middle portion  1120  that may be selectively extended along the vertical axis  1105  as shown by an arrow  1125 . Accordingly, the length-adjustable FACC  1100  may be used to reach cavity surfaces at various distances from a proximal end of the length-adjustable FACC  1100 . 
     In some implementations, some extendable portions may be included in a length-adjustable FACC. For example, a length-adjustable FACC may include only the selectively extendable top portion  1110  without the middle portion  1120 . In some examples, a third selectively extendable portion may be included. In various embodiments, a length-adjustable FACC with more selectively extendable portions (e.g., telescoping) may increase the flexibility of the length of the FACC. 
       FIG.  12    shows an exemplary FACC  1200 . The exemplary FACC  1200  includes a stem  1205 . The exemplary FACC  1200  includes a fibrillous abrasive tip  1210 . The fibrillous abrasive tip  1210  includes an insertion mechanism  1210   a . The stem  1205  and includes a receiving module  1205   a , containing a ball retainer. The stem  1205  includes a cavity  1205   b . Liquid may, for example, be stored in the cavity. The FACC  1200  includes a ball retainer  1215  in this example. The FACC  1200  includes a one-way valve in this example. The FACC  1200  may be made by inserting the fibrillous abrasive tip  1210  into the stem  1205  through the ball retainer and the one-way valve. 
     Although various embodiments have been described regarding the figures, other embodiments are possible. In some implementations, a FACC may include a fibrillous abrasive tip at one end and a jet reamer at the other. For example, a user may use the FACC to clean carburetor jets and bowls. 
     Although an exemplary system has been described regarding  FIGS.  1 - 12    other implementations may be deployed in other industrial, scientific, medical, commercial, and/or residential applications. 
     Some implementations have been described. Nevertheless, it will be understood that various modifications may be made. For example, advantageous results may be achieved if the steps of the disclosed techniques were performed in a different sequence, if components of the disclosed systems were combined differently, or if the components were supplemented with other components. Accordingly, other implementations are contemplated within the scope of the following claims.