Apparatus and method for cleaning the barrel of a firearm

摘要

A device for cleaning the barrel of a firearm comprising a longitudinal central member having a leading end and a trailing end; a tubular woven sheath surrounding said central member; and a radial protrusion formed of a polymer disposed about said central member and under the tubular woven sheath. The radial protrusions are overmolded thermoplastic that distends the sheath radially to the internal diameter of gun barrel. The central member may include a fitting for attachment to various auxiliary tools or a T-handle. The surface of the polymer is provided with helical pattern of protrusions formed to urge the sheath against the lands of barrel rifling. The sheath is woven of primarily a natural fiber such as cotton. Luminescent, abrasive or heat resistant threads may also be woven into the sheath. A sponge material may be disposed between the sheath and the central member.

主权项

1. A device for cleaning the barrel of a firearm having rifling lands comprising:
a central member defining a core and having a longitudinal length, a leading end and a trailing end; a tubular woven sheath surrounding said central member and having a lead end and a trailing end; and at least five annular thermoplastic elastomer features disposed around said central member and spaced apart along the longitudinal length of the central member such that each feature is adjacent to another of said features, each of said features comprising at least one radial protrusion helically oriented around said central member, all of said radial protrusions having a same helical direction and substantially a same helix angle, and the radial protrusions of adjacent features being disposed in a progressive angular rotation relative to the central member such that said radial protrusions collectively form at least one discontinuous helix having discontinuities defined by a longitudinal space between each pair of adjacent features, wherein the radial protrusions of successive features urge a plurality of overlying fibers of said tubular woven sheath to engage and follow the rifling lands of an inner surface of said barrel of said firearm, and wherein the tubular woven sheath is held in place by a tight fit of the tubular woven sheath over the radial protrusions.