Patent ID: 11940259
Assignee: FEDERAL CARTRIDGE COMPANY
Field: Other special machines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 5:
6. The projectile of claim 1, wherein
the ring encircles and is substantially symmetric about the equator of the body;
the top pole further comprises a top section comprising a surface selected from at least one of:
a substantially flat surface;
a concave surface;
a convex surface;
an outer ring encircle a concave surface;
an outer ring encircling a convex surface; and
a dimpled surface; and

the bottom pole further comprises a bottom section comprising a surface selected from at least one of:
a substantially flat surface;
a concave surface;
a convex surface;
an outer ring encircling a concave surface;
an outer ring encircling a convex surface; and
a dimpled surface.