IP Library Granted Patent US 11,585,645
Granted Patent B2
US 11,585,645 · App. 16/233,077 · Granted Feb 21, 2023

Bullets and methods of making bullets

Inventor: Gerald Todd Eberhart (Bethalto, IL)
Assignee: Olin Corporation
F42B33/00B21K1/025B22D17/02B22D17/2263B22D25/02F42B12/34F42B12/74F42B12/78F42B33/001
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Quick Facts
Patent No.
US 11,585,645
App. No.
16/233,077
Granted
Feb 21, 2023
Kind
B2
Abstract

A method of making a bullet includes metal injection molding a bullet jacket or preform, and forming the jacket or preform into a bullet.

Claims (3)

1. A method of making a solid bullet comprising: metal injection molding a bullet preform, the bullet preform having a generally cylindrical shape with a solid rearward portion, and a hollow forward portion open to the front of the bullet preform, the hollow forward portion being formed by a cavity in the forward portion extending at least 50% of the total length of the preform; wherein the cavity has a generally widening rearward portion, a generally frustoconical intermediate portion, and a generally widening forward portion of a different diameter than the rearward portion, each of the three portions of the cavity widening toward the front of the preform, the slopes of the rearward and forward portions of the cavity being less than the slope of the intermediate portion; and shaping the hollow forward portion of the bullet preform into a tapering configuration with an open forward end.

2. The method according to claim 1 further comprising disposing a pointed tip in the open forward end of the shaped preform.

3. The method according to claim 1 wherein the walls of the cavity of the preform have a generally S-shaped configuration.

Assignments (4)
SECURITY INTEREST Recorded May 19, 2026
From: OLIN CORPORATION; OLIN WINCHESTER, LLC
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT AND COLLATERAL MAY 19, 2026
Reel/Frame 074694/0881 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 25, 2023
From: EBERHART, GERALD TODD
To: OLIN CORPORATION
Reel/Frame 062482/0208 →
RELEASE OF SECURITY INTEREST Recorded Jul 29, 2021
From: BANK OF AMERICA, N.A.
To: OLIN CORPORATION
Reel/Frame 057016/0561 →
SECURITY AGREEMENT Recorded Aug 7, 2020
From: OLIN CORPORATION
To: BANK OF AMERICA, N.A.
Reel/Frame 053436/0262 →
Continuity (2)
Provisional Application 62609599 · Dec 22, 2017
Related Publication 20190277610A1 · Sep 12, 2019