US 11,940,252 B2
Projectile for firearms
Juan Carlos Marin Riquelme, Ripoll (ES)
Assigned to QUANTUM AMMUNITION, LLC, Auburn Hills, MI (US)
Filed by QUANTUM AMMUNITION, LLC, Auburn Hills, MI (US)
Filed on Jul. 27, 2020, as Appl. No. 16/940,274.
Claims priority of application No. 201930918 (ES), filed on Oct. 16, 2019.
Prior Publication US 2021/0116220 A1, Apr. 22, 2021
Int. Cl. F42B 10/48 (2006.01)
CPC F42B 10/48 (2013.01) 17 Claims
OG exemplary drawing
 
1. A projectile, comprising:
a body defining a longitudinal axis and an ogive; and
a plurality of pairs of adjacent flutes defined in the ogive; wherein:
each pair of adjacent flutes defines and is substantially symmetrical about a central ridge;
a longitudinal section of each flute has a profile which forms an arc of an ellipse extending from a first position proximate to a co-vertex of a minor axis of the ellipse to a second position proximate to a vertex of a major axis of the ellipse;
a leading edge of each flute corresponds to the first position; and
a trailing edge of each flute corresponds to the second position.
 
15. A projectile, comprising:
a body defining a longitudinal axis, a cylindrical base portion, and a tapered impact portion having a curved outer surface; and
three indentations defined in the impact portion; wherein:
the indentations are equidistantly spaced around a circumference of the impact portion;
the indentations are located at the same relative position along the longitudinal axis;
each indentation is formed by two substantially symmetrical curved surfaces;
the two curved surfaces intersect along a ridge;
the ridge is coplanar with the longitudinal axis; and
the ridge has a lesser depth relative to the outer surface than a bottom of the two curved surfaces.
 
17. A projectile, comprising:
a body defining a longitudinal axis and an ogive; and
a plurality of pairs of adjacent flutes defined in the ogive; wherein:
each pair of adjacent flutes defines and is substantially symmetrical about a central concave ridge;
the ogive defines a curved outer reference surface;
the concave ridge has a lesser depth relative to the curved outer reference surface than a bottom surface of the adjacent flutes; and
a rear portion of a bottom surface of each flute flares radially outward from the longitudinal axis.