Dust suppression
OwnerMoshe Eisenmaninventor
Life of this patent
Estimating the term…
Abstract
A method for suppressing raising of dust as a result of firing a projectile from a barrel of a weapon, wherein the dust is raised by a shock wave exiting the barrel, the method comprising reducing an exit pressure of gases of an explosive charge exiting the barrel. There is also disclosed a weapon including a barrel with a barrel bore formed therethrough, the barrel bore having a longitudinal axis, and a barrel extension element extending from and in fluid communication with the barrel bore, the barrel extension element having a barrel extension bore formed therethrough, wherein a plurality of gas exit holes are formed on sides of the barrel extension element, the gas exit holes being non-symmetrical with respect to a horizontal plane which passes through the longitudinal axis.
Claims14
A weapon comprising:
- a barrel with a barrel bore formed therethrough, said barrel bore having a longitudinal axis;
- and
- a barrel extension element extending from and in fluid communication with said barrel bore, said barrel extension element having a barrel extension bore formed therethrough, wherein a plurality of gas exit holes are formed on sides of said barrel extension clement, said gas exit holes being non-symmetrical with respect to a horizontal plane which passes through the longitudinal axis, wherein said barrel extension bore is shaped to cause a gas pressure at a bottom portion of the barrel extension bore to be smaller than a gas pressure at a top portion of the barrel extension bore.
A weapon comprising:
- a barrel with a barrel bore formed therethrough, said barrel bore having a longitudinal axis;
- and
- a barrel extension element extending from and in fluid communication with said barrel bore, said barrel extension element having a barrel extension bore formed therethrough, wherein a plurality of gas exit holes are formed on sides of said barrel extension element, said gas exit holes being non-symmetrical with respect to a horizontal plane which passes through the longitudinal axis, wherein:
- “cT” is defined as a clearance between said bore and said barrel extension bore at a top point where said barrel extension element extends from said barrel bore;
- “αT” is defined as an angle between the barrel extension bore and the longitudinal axis at a top portion of the barrel extension;
- “cB” is defined as a clearance between the barrel bore and the barrel extension bore at a bottom point where said barrel extension element extends from said barrel bore;
- “αB” is defined as an angle between the barrel extension bore and the longitudinal axis at a bottom portion of the barrel extension;
- and wherein at least one of two conditions is met:
- cB>cT and αB>αT.
A weapon comprising:
- a barrel with a barrel bore formed therethrough, said barrel bore having a longitudinal axis;
- and
- a barrel extension element extending from and in fluid communication with said barrel bore, said barrel extension element having a barrel extension bore formed therethrough, wherein
- “cT” is defined as a clearance between said bore and said barrel extension bore at a top point where said barrel extension element extends from said barrel bore;
- “αT” is defined as an angle between the barrel extension bore and the longitudinal axis at a top portion of the barrel extension;
- “cB” is defined as a clearance between the barrel bore and the barrel extension bore at a bottom point where said barrel extension element extends from said barrel bore;
- “αB” is defined as an angle between the barrel extension bore and the longitudinal axis at a bottom portion of the barrel extension;
- and wherein at least one of two conditions is met:
- cB>cT and αB>αT.
A method for suppressing raising of dust as a result of firing a projectile from a barrel of a weapon, wherein the dust is raised by a shock wave exiting the barrel, the method comprising reducing an exit pressure of gases of an explosive charge exiting said barrel and further comprising creating an upward impact force by making a gas pressure at a bottom portion of a bore of the barrel extension element smaller than a gas pressure at a top portion of the bore of the barrel extension element.
Dependencies are inferred from the claim text.