Gun-cleaning Tool and System
A gun-cleaning device deploys a plurality of different tool pieces that connect to a rod or shaft that is inserted down the gun barrel. The tool pieces are adapted to be received by a latch mechanism disposed at the distal end of the rod or shaft. The latch mechanism does not protrude beyond the diameter of the shaft, yet is readily actuated with one finger to release the tool pieces without touching the tool itself. The tool pieces themselves are optionally configured to be either freely rotating or fixed with respect to the shaft axis when engaged by the latch mechanism.
The present application claims priority to the U.S. Provisional Patent Application for a “Gun-cleaning Tool and System” filed on May 10, 2006 and having application Ser. No. 60/746,975, which is incorporated herein by reference
BACKGROUND OF INVENTIONThe present invention relates to improved tools for wiping and cleaning the inner walls of gun barrels, and in particular to a system for rapidly exchanging the various of tools used in the cleaning process.
Varieties of tools are deployed to clean deposits from the inner walls of gun barrels. The deposits are the residue of burning gunpowder and metals from shell casings and if not removed build up to the extent that they affect the accuracy of the gun, as well as clog the barrel. Such tools include wire brushes for scraping hard deposits, as well as various configurations of soft fabrics that aid in the application of liquid cleaning agents. Other types of tools known to gun owners are a jag, mop and patch holder. In all cases, the tool is passed multiple times through the barrel. Such tools are generally mounted on a stiff rod that is as least as long as the gun barrel so the tool can be inserted through the entire barrel from one side. The rod, while being stiff and rigid to support the tool as it encounters the inner walls of the barrels, must be smaller in diameter to fit the barrel.
Competition marksmen use many different styles of guns and rifles depending on the specific venues today. Serious marksmen purchase for competitive use very expensive guns and barrels that frequently are custom built. These barrels often are more expensive then the rest of the equipment used by a marksmen. For accuracy reasons, these barrels often only have a certain life expectancy of a certain number of rounds or bullets that can be fired or discharged through them and accuracy is of the utmost importance to today's competition marksmen.
It is of paramount importance in cleaning the barrel of a gun to avoid damaging the barrel. The brush and jags can and will damage or wear out the lands and groves of these barrels. This in turn will decrease the accuracy and life of a barrel. It is for this reason that almost all competition shooters have a very rigorous cleaning routine that is followed to the letter for cleaning and maintaining the barrel of a gun. This routine is not limited to, but does include the following practice of only pushing a cleaning jag and brush through the barrel of a gun in one direction and one direction only. The wire brush is then removed from the supporting rod so that the rod can be withdrawn from the barrel in the backwards direction without the tool. After the supporting rod is removed from the barrel, the brush is re-attached so that is can be re-inserted through the gun breech. This process can be repeated as many as 25 to 75 times per each barrel cleaning. Thus, with every pass through the bore of the gun barrel, at the end of the pass made, the shooter will then un-screw the brush or jag from the cleaning rod to then pull the cleaning rod back out of the barrel. The user must also unscrew the brush or jag when changing to a wiping tool used to add liquid cleaner or lubricant. Accordingly, it should be understood that thoroughly cleaning a gun properly is messy and tedious process.
Some guns deploy smooth bore barrels, while others utilize a helical grooved pattern known as riffling. As described in U.S. Pat. No. 4,674,218 to Bottomley (issued Jun. 23, 1987), which is incorporated herein by reference, it is desirable in some instances that the tool rotate freely to follow the barrel riffling, rather than depends on the user rotating the tool as it is pushed down the barrel. As taught by Bottomly and others, the tools themselves have a threaded end for engaging a mating threaded coupling at the end of the supporting rod. Likewise, the opposite end of the rod is threaded for engagement with mating threads of a handle.
Further, as the cleaning agents and the residue removed from the barrel is frequently a harsh if not somewhat toxic materials, the user should wear protective gloves when handling the tools. The need to wear and change gloves, to prevent recontamination of the barrel with residue left on the gloves, make the cleaning process even more tedious.
While others have recognized the need for providing a quicker method of disconnecting cleaning tools from the supporting rod, these methods have not enjoyed commercial success due to several deficiencies. For example, in the cleaning tool system taught by Hayes in U.S. Pat. No. 5,934,000 (issued Aug. 10, 1999), which is incorporated by reference, the tool attaches to the supporting rod via pins extending a right angle from the tool axis. The two pin fit into bayonet style L-shaped cutouts in hollow wall of the supporting rod. A bayonet mount is generally operative to lock by a combination of rotation and sliding movement to engage the pins extending from the cylindrical end of the implement in the end of the L-shaped cutouts of the holder. Thus, it should be appreciated that given the repetitive combination of rotation and sliding motion used to clean the barrel of a gun, a tool can come loose from such a bayonet mount in the cleaning process. The precise bayonet style configuration shown in the '000 patent might avoid this consequence, as the tool is first rotated and then slide down to a locking position. However, this bayonet style configuration then leaves several gaps in which cleaning residue could accumulate. Further, the user must still grip the tool to remove it from the rod. Hence, the need to protect ones hands and frequently changes gloves.
In the cleaning tool system taught by Sipple et al. in U.S. Pat. No. 4,509,223 (issued Apr. 9, 1985), which is incorporated by reference, the cleaning tips, though not intended for inserted in a gun barrel, do mount in a holder with a larger diameter. The end of the holder has a latching mechanism in which a detent lever snaps into a recess in a plate at the mounting end of the tip. The detent is removed by pushing a trigger recessed into the holder. While such a mechanism could be used on the end of a supporting rod, the mechanism would not allow the tool to rotate. Further, as the trigger is flush with the exterior diameter of the holder, it is not apparent how it could be recessed downward without the aid of an additional small tool.
Rivers in U.S. Pat. No. 4,866,871 (issued Sep. 19, 1989), which is incorporated by reference, discloses a compact telescoping supporting rods and cleaning tool system. An internal rod has a cleaning tool engaged by a threaded attachment at one end, with the other end of the internal rods in sliding engagement within the external storage sleeve. A latching mechanism is associated with the storage tube to lock the internal rod to the interior of the sleeve when the tool is fully extended. There is no suggestion of how to use such a mechanism to attach the tool to the internal rod.
Given the above and other deficiencies of the prior art it is a general object of the invention to speed up the gun barrel cleaning process, encouraging more frequent gun maintenance.
In doing so, it is a first and more specific object of the present invention to provide improved gun-cleaning tools and implements that tightly and securely hold a variety of alternative tools or probe ends, such as the brush, jag or mop holder, on the end of a shaft that is inserted into the gun barrel
It is another object of the invention to do so in a manner that avoids damage to the gun barrel during cleaning.
It is a further object of the invention to do so in a manner that avoid the accumulation of dirt and/or cleaning residue on the portion of the shaft that repeatedly enters the gun barrel.
Yet a further object of the invention is to provide a means to easily remove, replace and interchange the alternative gun-cleaning tools and implements.
It is still another object of the invention to remove spent gun-cleaning tools without touching the residue with the hands, and thus avoid the need to wear and frequently change gloves.
An additional object of the invention is to provide the option to have a wire brush or any other gun-cleaning tool or fixture rotate freely as it is advanced through the gun barrel so that it follows the gun barrel rifling.
SUMMARY OF INVENTIONIn the present invention, the first and other objects are achieved by providing a smooth elongated shaft with an inner bore and a recessed latch to hold a variety of gun barrel probes or implements. Each tool adapted to be received by the recessed latch has a different probe at the opposite end. The latch release is a lever or armature normally flush with the outer diameter of the tool but is readily depressed with a single finger on a trigger portion that is accessible by a surrounding concave recess in the shaft or rod surface.
Another aspect of select embodiments of the invention is that the portion of the cleaning tool engaged by the detent portion of the latch is a circularly symmetric barb so that the tool can rotate about the supporting rod axis. This permits the cleaning tool to follow the barrel riffling as it is advanced down the barrel.
Another aspect of the invention is a kit for converting existing gun-cleaning tools and components that attach to a support rod by a threaded screw connection. The kit includes first latch adapter for threaded engagement with the support rod and a second latch adapter for threaded engagement with the gun-cleaning tool. The first adapter once attached to the supporting rod is intended to receive in latched engagement the end of second adapter that is not attached to the gun-cleaning tool.
A further aspect of the invention is a kit that includes a smooth elongated shaft with an inner bore and a recessed latch to hold a variety of gun barrel cleaning tools. Some of the tools are configured to freely rotate about the supporting rod axis, with others that do not rotate about the support rod axis, but can be rotated by rotating the supporting rod. Tools adapted to rotate in the latch terminate with a circularly symmetric barb connected to the tool body by circular shaft that is held by the rectangular detent of the latch mechanism. In contrast, tools adapted to not rotate in the latch still terminates with a circularly symmetric barb, but this barb is connected to the tool body by a flat plate which is prevented from rotating as well as lateral motion by the rectangular detent.
The above and other objects, effects, features, and advantages of the present invention will become more apparent from the following description of the embodiments thereof taken in conjunction with the accompanying drawings.
Referring to
In accordance with the present invention,
Any of the tools in
The shank 125 of tool 120 slides into the bore 104 in the shaft 105 at the latch end 115. The outer diameter of the shank 125 is just slightly less than the inner diameter of bore 104. The tight fit of the terminal end of the coupling portion 122 up to ballast portion 123) into the bore 104 in rod 105 secures the tool 120 and prevents debris cleaned from the barrel from reaching and fouling the moving components of latch 115.
The probe will vary in diameter depending on its purposes. Typically the brush probe 1202 shown in
As the barb end 127 is angled slightly to form a point at apex 127a, inserting it into the bore of coupling 115 will urge detent 117 to tilt upwards as it acts on similarly sloped outside edge 117a.
With reference to
It should now be appreciated that in contrast to prior art cleaning devices for gun barrels, the tool 120 and latch 115 combination of the invention also has the benefit that is a flush assembly. Thus, there are no edges or corners at the latch that would trap or entrain cleaning debris, which could re-contaminate and damage the barrel during a latter stage of cleaning. Further, though the latch detent 117, securely holds the coupler portion 122 of tool 120, it allows free rotation of the probe with the barrel riffling when desired.
Further, the depression 114 around trigger 116 provides space for the user insert their fingertip and press on the trigger 116 so that the detent 117 rotates upward and releases barb 127 of tool 120. In addition, the ballast 123 increases the mass of the tool 120 beyond that of the probe to overcome the frictional between the shank 125 and the inner wall of the support rod 105 so that gravity will urge the tool 120 free of the rod 105, minimizing the need for the user to handle a dirty tool until all stages of the cleaning process are completed. It has been found that that merely lift the rod 105 by the handle end, such that the latch end 115 points downward, while depressing the trigger 116 will release the tool 120 so that it rests on a surface. Apparently, the mass of ballast 123 along with the probe overcomes the frictional resistance between the bore and the shank 125 to readily release tool 120 with minimal user intervention.
A further embodiment of the invention is the tool 120″ shown in
In another embodiment shown in
While the invention has been described in connection with a preferred embodiment, it is not intended to limit the scope of the invention to the particular form set forth, but on the contrary, it is intended to cover such alternatives, modifications, and equivalents as may be within the spirit and scope of the invention as defined by the appended claims.
Claims
1. A gun-cleaning device comprising:
- a) a smooth elongated shaft having at the distal end a circular opening to an inner bore and a recessed latch,
- b) a gun-cleaning tool adapted to be received by the recessed latch,
- c) wherein the elongated shaft has a concave external recess for accessing an actuator portion of the latch to release said gun-cleaning tool.
2. A gun-cleaning device according to claim 1 wherein the end portion of said gun-cleaning tool to be received by the recessed latch is a circularly symmetric barb attached to the probe portion of said gun-cleaning tool by a circular minor shaft such that said gun-cleaning tool can freely rotate independent of the rotation of said shaft.
3. A gun-cleaning device according to claim 2 wherein said gun-cleaning tool terminates at the end distal from the barb with a probe selected from the group consisting of a mop, a jag and a patch holder.
4. A gun-cleaning device according to claim 1 wherein the latch is an armature that pivots about a rotary axle disposed transverse to said shaft to engage and disengage a detent portion at the end of the armature.
5. A gun-cleaning device according to claim 4 wherein a detent portion of the armature is biased by a spring to engage a mating feature of said gun-cleaning tool to be received by the latch.
6. A gun-cleaning device according to claim 5 wherein the spring is a coil spring disposed under the portion of the armature that is within the concave recess.
7. A gun-cleaning device according to claim 1 wherein said gun-cleaning tool has a cylindrical ballast portion that extends outward along the circumference defined by the outer diameter of the shaft.
8. A gun-cleaning tool according to claim 1 further comprising a handle for attachment to the portion of said shaft distal from the latch.
9. A gun-cleaning device comprising:
- a) a smooth elongated shaft having at the distal end a circular opening to an inner bore and a recessed latch,
- b) a gun-cleaning tool having a circularly symmetric barbed end to be received by the recessed latch such that said gun-cleaning tool can freely rotate independent of the rotation of said shaft.
10. A gun-cleaning kit according to claim 9 wherein the latch is an armature that pivots about a rotary axle disposed transverse to said shaft to engage and disengage a detent portion at the end of the armature.
11. A gun-cleaning device according to claim 9 wherein a detent portion of the armature is biased by a spring to engage a mating feature of the gun-cleaning tool to be received by the latch.
12. A gun-cleaning device according to claim 9 wherein the elongated shaft has a concave external recess for accessing an actuator portion of the latch to release the gun-cleaning tool and the spring is a coil spring disposed under the portion of the armature that is within the concave recess.
13. A gun-cleaning device according to claim 9 wherein the tool has ballast that extends co-linearly outward along the circumference defined by the outer diameter of the shaft.
14. A gun-cleaning tool according to claim 9 further comprising a handle for attachment to the portion of said shaft distal from the latch.
15. A kit for adapting a gun-cleaning device to receive quick disconnect gun-cleaning cleaning tools, the kit comprising:
- a) a first smooth elongated adapter having a first threaded coupling at the distal end to attach to a rod for insertion in the gun barrel,
- b) a second smooth elongated adapter having a second threaded coupler at the proximal end to attach a thread terminated gun-cleaning tool,
- c) wherein the proximal end of said first smooth elongated adapter has a circular opening to an inner bore and a recessed latch,
- d) wherein the distal end of said second threaded adapter is configured for releasable engagement within the inner bore of said first threaded adapter.
16. A kit for adapting a gun-cleaning device according to claim 15 wherein the recessed latch in the first adapter has a concave external recess for accessing the actuator portion of the latch to release the gun-cleaning tool.
17. A kit for adapting a gun-cleaning device according to claim 15 wherein the distal end of said second threaded adapter that engages the recessed latch has a circularly symmetric barb such that the tool can freely rotate independent of the rotation of the rod or shaft attached to said first adapter during the cleaning process.
18. A kit for cleaning a gun, the kit comprising:
- a) a smooth elongated shaft having at the distal end a circular opening to an inner bore and a recessed latch,
- b) a first gun-cleaning tool having a circularly symmetric barbed end connected to the probe portion of said first gun-cleaning tool by a circular minor shaft, the detent portion of the latch grasping the portion of the barb adjacent the minor shaft such that said first gun-cleaning tool can freely rotate independent of the rotation of said smooth elongated shaft.
- c) a second gun-cleaning tool having a circularly symmetric barbed end connected to the probe portion of said first gun-cleaning tool by a plate, the detent portion latch grasping the portion of the barb adjacent the plate such that said first gun-cleaning tool is restrained from rotating with respect to said smooth elongated shaft by the detent.
19. A kit for cleaning a gun according to claim 18 wherein the elongated shaft has a concave external recess for accessing an actuator portion of the latch to release the gun-cleaning tool.
20. A kit for cleaning a gun according to claim 18 wherein the latch is an armature that pivots about a rotary axle disposed transverse to said smooth elongated shaft.
Type: Application
Filed: May 9, 2007
Publication Date: Nov 15, 2007
Applicant: SPS MARKETING INC. (Santa Rosa, CA)
Inventors: James David Perry (Silver Springs, NV), Gregory G. Conner (Rohnert Park, CA)
Application Number: 11/746,174
International Classification: F41A 29/00 (20060101);