US 11,680,765 B1
Firearm barrel with non-metal outer sleeve
Aaron E. Painter, Elkhorn, WI (US)
Filed by Aaron E. Painter, Elkhorn, WI (US)
Filed on Nov. 3, 2020, as Appl. No. 17/87,676.
Application 17/087,676 is a continuation in part of application No. 16/434,207, filed on Jun. 7, 2019, granted, now 10,907,921.
Application 16/434,207 is a continuation in part of application No. 15/394,155, filed on Dec. 29, 2016, granted, now 10,365,061, issued on Jul. 30, 2019.
Int. Cl. F41A 21/44 (2006.01); F41A 21/28 (2006.01)
CPC F41A 21/44 (2013.01) [F41A 21/28 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A firearm barrel with a non-metal tube comprising:
a barrel tube including an outer barrel surface, an inner barrel surface, an entrance end and an exit end, a sleeve thread formed on said exit end, and a raised sleeve support formed on an end opposite said exit end;
said non-metal tube including an inner surface, said inner surface having an inner perimeter which is greater than an outer perimeter of said raised sleeve support;
a bonding substance applied to at least one of said raised sleeve support and said inner surface to fill a gap between said raised sleeve support and said inner surface; and
a sleeve nut including a tube end, a sleeve inner thread formed through said sleeve nut, said tube end in contact with said inner surface of said non-metal tube, wherein said barrel tube is inserted through said non-metal tube, wherein said sleeve nut is threaded on to said sleeve thread to retain said non-metal tube, wherein tightening said sleeve nut increases tension on a length of said barrel tube, and wherein concentricity of said non-metal tube is set relative to said barrel tube with said sleeve nut, before said bonding substance cures, said bonding substance locating said raised sleeve support with respect to said inner surface of said non-metal tube to lock spacing between said barrel tube and said non-metal tube.