Fluted gun barrel
DCFirst Claim
Patent Images
1. A gun barrel, comprising:
- an open-ended hollow body extending along a longitudinal axis, said body having a first end, a second end, an intermediate portion positioned between said first end and said second end, an inner surface and an outer surface, said inner surface defining a gun barrel bore and a plurality of internal spiral grooves and said outer surface defining a plurality of external spiral grooves, wherein the internal spiral grooves are not in fluid communication with the external spiral grooves, and wherein a cross section taken through the intermediate portion, which is transverse to the longitudinal axis, includes an external spiral groove and an internal spiral groove radially spaced from the longitudinal axis, and wherein the plurality of internal grooves and the plurality of external grooves when viewed from said first end progress in the same direction of rotation.
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Abstract
A gun barrel having a generally hollow cylindrically-shaped barrel with a first end, a second end, an inner surface and an outer surface. The inner surface defines a plurality of internal spiral grooves and the outer surface defines a plurality of external spiral grooves.
29 Citations
20 Claims
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1. A gun barrel, comprising:
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an open-ended hollow body extending along a longitudinal axis, said body having a first end, a second end, an intermediate portion positioned between said first end and said second end, an inner surface and an outer surface, said inner surface defining a gun barrel bore and a plurality of internal spiral grooves and said outer surface defining a plurality of external spiral grooves, wherein the internal spiral grooves are not in fluid communication with the external spiral grooves, and wherein a cross section taken through the intermediate portion, which is transverse to the longitudinal axis, includes an external spiral groove and an internal spiral groove radially spaced from the longitudinal axis, and wherein the plurality of internal grooves and the plurality of external grooves when viewed from said first end progress in the same direction of rotation. - View Dependent Claims (2, 3)
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4. A gun, comprising:
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a gun stock;
a firing mechanism; and
a gun barrel secured to said gun stock and said firing mechanism, said gun barrel comprising;
an open-ended hollow body extending along a longitudinal axis, said body having a first end, a second end, an intermediate portion positioned between said first end and said second end, an inner surface and an outer surface, said inner surface defining a gun barrel bore and a plurality of internal spiral grooves and said outer surface defining a plurality of external spiral grooves, wherein the internal spiral grooves are not in fluid communication with the external spiral grooves, and wherein a cross section taken through the intermediate portion, which is transverse to the longitudinal axis, includes an external spiral groove and an internal spiral groove radially spaced from the longitudinal axis, and wherein the plurality of internal grooves and the plurality of external grooves when viewed from said first end progress in the same direction of rotation. - View Dependent Claims (6)
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5. A gun as claimed in claim wherein said body is a generally hollow cylindrically-shaped barrel.
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7. A gun barrel, comprising:
an open-ended hollow body having a first end, a second end, an inner surface and an outer surface, said inner surface defining a gun barrel bore and a number of internal spiral grooves and said outer surface defining a number of external spiral grooves, wherein the number of the internal spiral grooves equals the number of the external spiral grooves. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A gun, comprising:
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a gun stock;
a firing mechanism; and
a gun barrel secured to said gun stock and said firing mechanism, said gun barrel comprising;
an open-ended hollow body having a first end, a second end, an inner surface and an outer surface, said inner surface defining a gun barrel bore and a number of internal spiral grooves and said outer surface defining a number of external spiral grooves, wherein the number of said internal spiral grooves equal the number of said external spiral grooves. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification