This invention relates generally to the field of barrel cleaning brushes for firearms.
With each use, the breech and bore of a firearm accumulate fouling and debris. Most fouling and debris originates from the firearm itself, such as propellant residue (i.e., carbon deposits), priming compound, and ammunition casings (i.e., copper fragments). But fouling and debris may also originate from the environment if the firearm is used outdoors, such as: dirt, sand, mud, moisture, and plant matter. The presence of such materials can moderately to severely compromise the efficacy of a firearm absent proper periodic cleaning of its barrel. For example, the short term build-up of materials within a firearm barrel can undesirably delay the release time of a bullet or other form of ammunition fired from the firearm. Also, materials that remain within a firearm's barrel for a prolonged period of time can cause corrosion or other significant degradation of the firearm's components, thus potentially necessitating expensive repair or replacement of the firearm. Failure to remove the residue and debris may even pose a safety hazard to the operator. Therefore, proper cleaning is one of the most important elements of firearm ownership.
Although the design of firearm cleaning devices has varied over time, they tend to fall into one of two general design categories: rigid devices and flexible devices. Despite differences in their design, firearm barrel cleaning devices are generally used in similar ways, namely by being inserted within the firearm to loosen or dislodge (e.g., by one or more of brushing, scraping and/or rinsing actions) unwanted materials from within the barrel. The dislodged materials are then removed from the barrel through the use of one or more additional devices.
Because the breeches of firearms typically contain numerous intricate components, a variety of cleaning tools may be needed to thoroughly clean the firearm. A tool cleaning kit may contain brushes, a punch pin, a scraper, and a pick, to name a few. Firearm owners may purchase kits containing the required tools to thoroughly clean a particular model of firearm. Although the kits can be useful and may be advantageous for certain applications, the cleaning process can be time-consuming. Military personnel need to be able to clean their weapons in the field, preferably immediately after shooting so that their firearm is ready for use at all times. Therefore, there is a need to decrease the time and steps required to thoroughly clean a firearm.
In one aspect of the invention, a firearm barrel cleaning brush includes a body defining a first end and an opposing second end, the first end including a connector portion. The firearm barrel cleaning brush further includes a first swab portion affixed to the body. The first swab portion extends radially from the body and has a first outer diameter D1 that is greater than an inner diameter of the firearm barrel to be cleaned. The firearm barrel cleaning brush further includes a bristle brush portion affixed to the body, proximate to the first swab portion and positioned closer to the second end of the body than the first swab portion. A second swab portion affixed to the body extends radially therefrom. The second swab portion is proximate to the bristle brush portion, and is positioned closer to the second end of the body than the bristle brush portion. The second swab portion has a second outer diameter D2 that is greater than the inner diameter of the firearm barrel to be cleaned.
In another aspect of the invention, a firearm barrel cleaning tool is provided that includes a cleaning rod having a first end and an opposing second end. Further include is a barrel cleaning brush having a body defining a first end and an opposing second end, the first end secured to the second end of the cleaning rod. The firearm barrel cleaning tool further includes a pull-through handle secured to the first end of the cleaning rod. The pull-through handle includes a base, a swivel, and a handle portion attached to the base by the swivel. The handle portion has a closed position adapted for passage through the firearm barrel, and an open position adapted for pulling the cleaning rod and barrel cleaning brush through the firearm barrel.
The features described herein can be better understood with reference to the drawings described below. The drawings are not necessarily to scale, emphasis instead generally being placed upon illustrating the principles of the invention. In the drawings, like numerals are used to indicate like parts throughout the various views.
Referring to
The kit 10 further includes a fastener 20 to secure the first compartment 14 to the second compartment 16 when the case 12 is in the closed position. The fastener 20 in the disclosed embodiment is a zipper, configured to zip along three sides of the case 12. Other fastener configurations are possible. For example, the fastener 20 may be one or more snaps, flexible strips such as VELCRO® brand fasteners, or ties. The fastener 20 in the preferred embodiment is a silent zipper due to its strength, ease of use, and quiet operation.
The case 12 includes a first interior region 22 defined by the first compartment 14, and a second interior region 24 defined by the second compartment 16. A pocket 26 sewn into the first interior region 22 and/or the second interior region 24 of case 12 holds cleaning materials such as a flexible cleaning rod and bore patches (not shown).
The kit 10 further includes a tool compartment 28 secured to the fold line 18 of the case 12. In the disclosed embodiment, the tool compartment 28 comprises a backing 30 and at least one tool insert 32. The backing 30 may be made of a thin, rigid plastic. The tool insert 32 is secured to the backing 30, and is preferably composed of foamed rubber. The tool insert 32 contains a plurality of tool-holding cavities 34 to hold respective cleaning tools therein. In the example configuration shown, the tool-holding cavities 34 may contain a cleaning tip 60 and a barrel cleaning brush 80, features and aspects of which will be explained in detail below. Other examples of cleaning tools held in the tool-holding cavities 34 include slotted tips, picks, adapters, handles, obstruction removers, mats, scrapers, and a bore reflector (all not shown). The tool compartment 28 may also be secured to the first interior region 22 and/or the second interior region 24 of the case 12.
Referring to
The first end 38 of the cleaning rod 36 may include a tee handle 44. The tee handle 44 may be of unitary construction or, as shown, may be comprised of an end adapter 46 and a bar 48. In another embodiment, shown in
Referring now back to
Referring to
To clean a firearm barrel with the cleaning apparatus described above, the cleaning patch 62 and the bore brush 66 are alternately moved through the barrel of the firearm. In one example, the cleaning patch 62 is first attached to the second end 40 of the cleaning rod 36. The first end 38 of the cleaning rod 36 is pushed through the barrel from breech to muzzle, then pulled through to drag the cleaning patch 62 through the bore to pick up dirt and abrasive particles. A solvent may be applied to the patch 62 to lubricate the bore and prevent sand or dirt from scratching the muzzle end of the barrel.
Next, the bore brush 66 is threadably coupled to the cleaning rod 36 and pulled through the bore in the same manner. The bore brush 66 serves to scrape the chamber of the firearm and loosen any residue adhered to the barrel. Any residue loosened by the bore brush 66 must be removed by the cleaning patch 62 prior to running the bore brush through the barrel again. If this important step is omitted, residue will be entrained in the bristles 78 of the bore brush 66 and be deposited in the chamber or bore the next time the brush is run through. The stiff bristles 78 will drag the residue through the bore, marring and scratching it.
As may be evident from the foregoing description, repeatedly exchanging the cleaning patch 62 and the bore brush 66 may become tedious and consumes time. In some situations, such as military environments, the firearm owner may chose to skip at least some of the exchanging steps if they are in a time-critical environment. This could lead to degradation or even malfunctioning of the firearm. The inventor has devised a barrel cleaning brush 80 that alleviates the foregoing problems without sacrificing the thoroughness of the cleaning.
Referring now to
The barrel cleaning brush 80 further includes a first swab portion 90 affixed to the body 82. The first swab portion 90 is made of a soft, non-abrasive material that is also absorbent. The first swab portion 90 has an outer diameter “D1” that is greater than the inner diameter of the firearm barrel for which the barrel cleaning brush 80 is intended. In this manner, the first swab portion 90 will readily absorb a solvent, and fully contact the entire inner diameter of the barrel while being passed therethrough. In one embodiment, the first swab portion 90 may be positioned approximately mid-span on the body 82 of the barrel cleaning brush 80. In another embodiment, the first swab portion 90 may be positioned proximate to the second end 86 of body 82. By proximate, what is meant is that the first swab portion 90 is positioned on the body 82 closer to the second end 86 than the first end 84.
The barrel cleaning brush 80 further includes a bristle brush portion 92 affixed to the body portion 82, positioned proximate to the first swab portion 90 and in closer relation to the second end 86 of the body 82 than the first swab portion 90. In one embodiment, the bristle brush portion 92 is adjacent to the first swab portion 90. The bristle brush portion 92 has a plurality of filaments 94 arranged and sized to a diameter greater than the inner diameter of the firearm barrel and less than the diameter “D1” of the first swab portion 90. In the disclosed embodiment, the filaments 94 are formed of brass. The brass filaments 94 are stiff to provide superior scraping action, but soft enough to prevent scratching the inner bore of the firearm.
The body portion 82 of the barrel cleaning brush 80 may include a wire-wound stem portion 96 to reliably secure the filaments 94. The wire-wound stem portion 96 may include a first wire 98 and a second wire 100 in intertwining relationship, twisted and bent over at the second end of the body to prevent sharp edges. In a preferred example, the intertwined first and second wires 98, 100 are formed from a single wire strand, doubled over to form a loop prior to the twisting operation. In this manner, no sharp edges are present at the second end 86 of the body 82. One end of the filaments 94 may be interspersed within the first and second wires 98, 100 of the stem portion 96 prior to the wire being spiral-wound. After winding, the end of the filaments 94 are squeezed between the spiraled first and second wires 98, 100 and thus securely fastened. Securing the filaments 94 to the body 82 in this manner assures a great deal of scraping force may be applied to the cleaning brush 80 without the filaments becoming loose and lodging in the gun barrel. After spiral forming, the wire-wound stem 96 may be secured to the first end 84 of the body portion 82 by cold welding, for example.
The barrel cleaning brush 80 further includes a second swab portion 102 affixed to the body 82 and extending radially therefrom. The second swab portion 102 is proximate to the bristle brush portion 92 and is positioned closer to the second end 86 of the body 82 than the bristle brush portion 92. In one embodiment, the second swab portion 102 is positioned at a tip 104 or outermost extremity of the second end 86. Similar to the first swab portion 90, the second swab portion 102 is made of a soft, non-abrasive material that is also absorbent. The second swab portion 102 has an outer diameter “D2” that is greater than the inner diameter of the firearm barrel for which the barrel cleaning brush 80 is intended. In this manner, the second swab portion 102 can readily absorb a solvent or lubricant, and will fully contact the entire inner diameter of the barrel while being passed therethrough.
The disclosed barrel cleaning brush 80 thus provides a compact cleaning tool capable of performing several cleaning steps in one pass through the gun barrel. In one example, which is not intended to be limiting, the cleaning brush 80 is attached to the second end 40 of a flexible cleaning rod, such as the rod 36 illustrated in
Solvent is first applied to the first swab portion 90, and optionally the second swab portion 102, to remove carbon, gun powder, dirt, and grime from metal surfaces. One exemplary solvent is Otis 085® Ultra Bore® solvent from Otis Technologies, Lyons Falls, N.Y., which is an all-in-one cleaner, lubricant, and preservative. As the barrel cleaning brush 80 is pulled through the firearm barrel (aided by the pull-through tee handle 1044), the first swab portion 90 contacts the barrel, applying the solvent. The bristle brush portion 92 then scrapes the residue from the barrel surfaces. The residue and debris is then captured or mopped up by the second swab portion 102, which is proximate to the brush portion 92. Note that 360° coverage of the firearm barrel is provided by the swabs and brush.
As used herein, “proximate” means the bristle brush portion 92 and second swab portion 102 are spaced close enough to reliably work in tandem while disposed on the same tool. The bristle brush portion 92 and second swab portion 102 work in tandem because much of the residue scraped from the inner bore of the firearm does not re-deposit itself onto the inner wall of the barrel; it is quickly absorbed onto the second swab portion 102. In a preferred example, the bristle brush portion 92 is positioned adjacent the second swab portion 102. In this manner, as the stiff filaments 94 scrape off the residue from the inner bore of the firearm, the filaments 94 will tend to “flick” the residue particles rearward (e.g., opposite to the motion of cleaning rod 36) directly onto the second swab portion 102. The amount of residue re-deposited on the inner bore of the firearm during the cleaning process is thus minimized. The diameter of the bristle brush portion 92 is sized less than the diameter D2 of the second swab portion 102 to assure ease of movement through the bore on the part of the brush while simultaneously assuring the swab is adequately compressed to contact the entire bore and capture all the residue created by the brush. In another example wherein the solvent does not include a lubricant, the solvent may be applied to the first swab portion 90 and lubricant may be applied to the second swab portion 102.
As may be appreciated with respect to the illustrative cleaning procedure thus described, the capability to provide several cleaning steps in one pass through the barrel of the firearm presents options for the choice of material and configuration. The options may be selected depending upon the particular firearm or gage being cleaned.
In one embodiment, at least one of the first swab portion 90 and the second swab portion 102 are formed of a plurality of twisted fiber strands that are secured in the wire-wound stem portion 96. The twisted fiber strands form a nap having a nap height that is greater than half the inner diameter of the firearm barrel. This nap height similarly assures the first swab portion 90 or the second swab portion 102 is adequately compressed to contact the entire inside bore of the firearm barrel and capture the residue created by the bristle brush portion 92. In one example, the twisted fibers form singular frayed strands, thereby providing superior absorbency. In another example, the twisted fiber strands are doubled over to form a loop, similar to carpet pile. The strand loops are more durable because they better withstand the rigors of the cleaning process.
In one example, both the first swab portion 90 and the second swab portion 102 are formed of twisted fiber strands secured to the wire-wound stem portion 96. The strands may be squeezed between the first and second wires 98, 100, in a like manner to the filaments 94 described above. The twisted fiber strands may be formed of a cotton material, for example. The twisted fiber strands may be tightly packed or loosely spaced on the body, thereby defining a fiber strand density. The fiber strand density may vary depending upon the particular function of the swab. For example, as noted above, the first swab portion 90 may provide a solvent applicator function, and the second swab portion 102 may provide a cleaning and/or mopping function. The fiber strand density of the first swab portion 90 may therefore be greater than the fiber strand density of the second swab portion 102. Additionally or alternatively, the outer diameter D2 of the second swab portion 102 may be greater than the outer diameter D1 of the first swab portion 90 because the second swab portion may require more friction force to remove the debris and particles, while the first swab portion may only require the application of a thin layer of solvent.
In another embodiment, either the first swab portion 90 or the second swab portion 102 is formed of twisted fiber strands, and the other swab portion is formed of a felt material. In one example, the first swab portion 90 may be formed of felt to provide superior absorbency for the cleaning solvent, and the second swab portion 102 may be formed of cotton twisted fiber strands to provide superior mopping action of the residue and debris. In yet another embodiment, either the first swab portion 90 or the second swab portion 102 are formed of twisted fiber strands, and the other swab portion is formed of a foam material.
As noted above, the disclosed barrel cleaning brush 80 provides a compact cleaning tool capable of performing several cleaning steps in one pass through the gun barrel. In one embodiment, the total length of the cleaning brush 80 is less than 3 inches in length, which allows the cleaning brush 80 to be readily stored in a compact firearm cleaning kit case (see
Referring to
Because of its dimensions, when pull-through handle 1044 is in the closed position as in
Pull-through handle 1044 also has the advantage of being attached to the flexible cable 36 and cleaning implement 80 throughout the process of pulling the combined assemblage of pull-through handle, cable, and cleaning implement through the barrel, so that the combined assemblage can be stored together in a completely attached state beforehand, remain in a completely attached state during the cleaning process, and be stowed again still in the completely attached state once the user is finished performing the cleaning process. This provides a significant advantage over some other systems in which a cable is dropped through a bore and then a lone handle attachment (e.g.,
Referring now to
While the present invention has been described with reference to a particular preferred embodiment and the accompanying drawings, it will be understood by those skilled in the art that the invention is not limited to the preferred embodiment and that various modifications and the like could be made thereto without departing from the scope of the invention as defined in the following claims.
This is a continuation-in-part of the invention described in U.S. patent application Ser. No. 12/551,763, filed Sep. 1, 2009 by the same inventors herein, titled “INTEGRATED DUAL TECHNOLOGY BRUSH.” The invention described in U.S. patent application Ser. No. 12/551,763 is assigned to the assignee hereof. Reference is made to and this application claims priority from and the benefit of U.S. Provisional Application Ser. No. 61/488,539, filed May 20, 2011, entitled “BOLT AND BOLT CARRIER CLEANING SYSTEM AND TOOLS WITH INTEGRATED PULL-THROUGH HANDLE”, which application is incorporated herein by reference.
Number | Date | Country | |
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61488539 | May 2011 | US |
Number | Date | Country | |
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Parent | 12551763 | Sep 2009 | US |
Child | 13351381 | US |