Cleaning and polishing tool for firearm bolts
View Patent ↗Firearm bolt tail cleaning device has a device body and a plurality of cleaning arms arranged radially about a centerline and defining a cleaning slot configured to accept a bolt tail. The cleaning device slidably and rotatably interfaces with the bolt tail at inner wall portions of the plurality of cleaning arms, to remove debris from and to polish the bolt tail surface. The device is constructed of a polymer and 15 to 40 percent by weight of an abrasive material, such as glass fiber. Via interaction with the bolt tail, at least a portion of the plurality of cleaning arms become worn with use and expose more abrasive material which facilitates removing debris from and polishing the bolt tail surface. End portions of the body are open and each have a concavity.
1. A firearm bolt tail cleaning device, comprising:
a unitary integrally molded device body being grippable by fingers of a hand of a user and, having:
a plurality of cleaning arms each having a cleaning arm portion extending inward toward a centerline of the device body and an inner wall portion proximally located and in parallel to the centerline and configured to contact a firearm bolt tail;
a cleaning slot defined by the plurality of cleaning arms, each of the plurality of cleaning arms extending inwardly toward the centerline and being positioned to slidably and rotatably interface with a firearm bolt tail insertable into the cleaning slot such that the plurality of cleaning arms remove debris from a firearm bolt tail surface and polish a firearm bolt tail surface; and
the plurality of cleaning arms being abrasive and radially oriented about the centerline and define a plurality of debris removal channels.
2. The firearm bolt tail cleaning device of claim 1 , wherein the plurality of cleaning arms are evenly spaced about the centerline.
3. The firearm bolt tail cleaning device of claim 1 , wherein the unitary device body is a single cylindrical rigid member having continuous open end portions.
4. The firearm bolt tail cleaning device of claim 1 , wherein the firearm bolt tail cleaning device is constructed of a polymer mixture of a polymer and an abrasive material.
5. The firearm bolt tail cleaning device of claim 4 , wherein the polymer is an injection-moldable polymer.
6. The firearm bolt tail cleaning device of claim 4 , wherein at least a portion of the inner wall portions are worn and removed by frictional contact between the cleaning device and interaction with a firearm bolt tail.
7. The firearm bolt tail cleaning device of claim 6 , wherein the abrasive material is exposed by the frictional removal of the at least a portion of the inner wall portions and the exposed abrasive material facilitates removing debris from the firearm bolt tail surface and polishing the firearm bolt tail surface.
8. The firearm bolt tail cleaning device of claim 1 , wherein the abrasive material is a fibrous material.
9. The firearm bolt tail cleaning device of claim 8 , wherein the fibrous material is one of: glass fiber, fiberglass, carbon fiber and graphite fiber.
10. The firearm bolt tail cleaning device of claim 8 , wherein the plurality of cleaning arms contain 15-40 percent by weight glass fiber.
11. The firearm bolt tail cleaning device of claim 4 , wherein the abrasive material is a granular material.
12. The firearm bolt tail cleaning device of claim 11 , wherein the granular material is one of: sand, grit, silicon carbide, aluminum oxide, metal shavings and glass shards.
13. The firearm bolt tail cleaning device of claim 1 , wherein the inner wall portion comprises:
a first end portion having a curvature;
a middle portion; and
a second end portion having a curvature;
wherein at least one of: the first end portion, the middle portion, and the second end portion is configured to conform to a portion of a bolt tail surface.
14. The firearm bolt tail cleaning device of claim 13 , wherein a firearm bolt tail has a bolt tail top with a concave curvature; and
wherein the curvature of at least one of: the first end portion and the second end portion is chosen to conform to a curvature of a firearm bolt tail top.
15. The firearm bolt tail cleaning device of claim 13 , wherein a firearm bolt tail includes:
a bolt tail body having a cylindrical configuration; and
wherein the middle portion of the cleaning device has a concave curvature about the centerline, conforming to a curvature of a bolt tail body.
16. The firearm bolt tail cleaning device of claim 1 , wherein the device body has a circular cross section.
17. The firearm bolt tail cleaning device of claim 1 , wherein the device body further includes:
a device outer surface, the device outer surface being approximately cylindrical, configured to facilitate operation of the firearm bolt tail cleaning device via hand rotation by a user, the device outer surface further including:
a plurality of spaced ridges positioned longitudinally on the device outer surface.
18. A firearm bolt tail cleaning device comprising:
a unitary device body constructed of a polymer mixture of an injection-moldable polymer and glass fiber; the device body being configured to facilitate operation of the firearm bolt tail cleaning device via hand rotation by a user and the device body having an unsmooth cylindrical device outer surface;
the device body having a plurality of cleaning arms; and a cleaning slot defined by the plurality of cleaning arms, each of the plurality of cleaning arms extending inward toward a centerline and positioned to slidably and rotatably interface with a firearm bolt tail such that the plurality of cleaning arms remove debris from a firearm bolt tail surface and polish the firearm bolt tail surface;
each cleaning arm having a cleaning arm body extending inward toward the centerline; and
an inner wall portion proximally located and in parallel to the centerline and configured to contact the firearm bolt tail; and
the plurality of cleaning arms being radially oriented about the centerline and being equally spaced, and defining a plurality of debris removal channels.
19. A firearm bolt tail cleaning device for cleaning and polishing a firearm bolt tail having a cylindrical bolt tail body and a bolt tail top having a concave curvature, the firearm bolt tail cleaning device comprising:
a device body constructed of a polymer mixture, having 85-60 percent by weight of an injection-moldable polymer and 15-40 percent by weight of glass fiber;
the device body being configured to facilitate operation of the firearm bolt tail cleaning device via hand rotation by a user and having a generally cylindrical outer surface, the device outer surface being ridged along a longitudinal centerline;
a plurality of elongated cleaning arms; and
a plurality of cleaning slots defined by and between adjacent ones of the plurality of cleaning arms, each of the plurality of cleaning arms extending inward toward the centerline and positioned to slidably and rotatably interface with a firearm bolt tail such that the plurality of cleaning arms remove debris from a firearm bolt tail surface and polish a firearm bolt tail surface, each cleaning arm having a cleaning arm body extending inward toward the centerline;
an inner wall portion of the cleaning arm body is proximally located and in parallel to the centerline and configured to contact a firearm bolt tail, and a first end portion, and a middle portion having a concave curvature about the centerline, conforming to a curvature of a bolt tail body; and a second end portion; each of the first end portion and the second end portion having a curvature conforming to a curvature of a bolt tail top; and
the plurality of cleaning arms being radially oriented about the centerline and evenly spaced, and defining a plurality of debris removal channels.