Apparatus and Method for Tensioning a Gun Barrel Liner
AssigneeGlobal Metallix Canada Inc.
InventorsJack J. MASSARELLO, Robert A. SOTELO, Zachary B. SPENCER, Brian E. SPENCER
Life of this patent
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Abstract
Tensioned gun barrel liners, and methods and apparatus for tensioning gun barrel liners are disclosed. Tensioned gun barrels have been shown to have superior performance. The apparatus allows for axial strain to be imparted into the gun barrel using mechanical means while other embodiments utilize thermal expansion of the material such as metal that is used for the gun barrel liner to introduce the strain and maintain it using other mechanical means or applied material such as composites.
Claims27
A method of tensioning a barrel liner, the method comprising:
- a) stretching the barrel liner along a longitudinal axial direction from at least one of a distal end and a proximal end of the barrel liner, to place the barrel liner under axial strain in a tensioned state;
- and
- b) restraining the barrel liner in the tensioned state such that the barrel liner remains under said axial strain.
An apparatus for tensioning a barrel liner, the apparatus comprising:
- an implement for engaging the barrel liner;
- and
- securing elements for securing the implement to the barrel liner,
- wherein the implement is operable to engage the barrel liner to cause axial strain in the barrel liner along a central axis of the barrel liner, the securing elements are operable to secure the barrel liner to the implement, to prevent displacement a portion of the implement relative to the barrel liner, such that movement of the said portion of the implement causes said axial strain.
A gun barrel produced by a process comprising:
- a) providing barrel liner and a structural external feature;
- b) placing the barrel liner under axial strain;
- and
- c) applying the external feature while the barrel liner is under said axial strain.
Dependencies are inferred from the claim text.