US5079814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a hollow point bullet
Assignee: Vista Outdoor Operations LLC
•
Filing: 1990-11-13
•
Granted: 1992-01-14
•
Expires: 2010-11-13
Abstract
Abstract A method of manufacturing a hollow point bullet and the product resulting therefrom. A core is first formed from a deformable first metal and the entire core is electroplated with a second metal. A partially electroplated cavity is then formed within one end of the core with slits through the second metal along the cavity walls. The core is formed into its final shape in such a manner that the walls of the cavity are inclined at a desired angle relative to the axis core and the slits are extended to the circumferential edge of the cavity.
Inventors
- 👤 Steven R. Moore
- 👤 David A. Imthurn
- 👤 Brett Olin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:41
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/34; B; B21; B21K; B21K1/00; B21K1/02; B21K1/025
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
79 words
A method of manufacturing a hollow point bullet, comprising the following steps: providing a quantity of a deformable first metal for a bullet core; electroplating the core with a second metal; forming and electroplated cavity, the cavity having an edge, a bottom and walls between the edge and bottom within one end of the core; and splitting the second metal apart along the cavity walls thereby defining slits through the second metal between the cavity edge and cavity bottom.
Claim 2
Independent Claim
79 words
A method of manufacturing a hollow point bullet, comprising the following steps: providing a quantity of a deformable first metal for a bullet core; electroplating the core with a second metal; forming and electroplated cavity, the cavity having an edge, a bottom and walls between the edge and bottom within one end of the core; and splitting the second metal apart along the cavity walls thereby defining slits through the second metal between the cavity edge and cavity bottom.
Claim 3
Dependent Claim
31 words
The method of claim 1 wherein the steps of forming a cavity and splitting apart the second metal comprise pressing a tapered tip into the one end of the electroplated core.
Claim 4
Dependent Claim
29 words
The method of claim 1 wherein the step of splitting apart the second metal further comprises defining slits within the first metal below the slits through the second metal.
Claim 5
Dependent Claim
34 words
The method of claim 1 wherein the electroplated core has a longitudinal axis, the method including inclining the walls of the cavity to a desired angle relative to the axis of the electroplated core.
Claim 6
Dependent Claim
23 words
The method of claim 4 including simultaneously forming an ogive of the bullet on the exterior of the one end of the core.
Claim 7
Dependent Claim
29 words
The method of claim 1 wherein providing a quantity of a deformable first metal for a bullet core comprises providing a cylindrical core having one end that is rounded.
Claim 8
Independent Claim
95 words
A method of manufacturing a hollow point bullet, comprising the following steps: providing a quantity of a deformable first metal for a bullet core; electroplating the core with a second metal; forming a electroplated cavity, the cavity having an edge, a bottom and walls between the edge and bottom in one end of the core; splitting apart the second metal within the cavity thereby defining slits through the second metal along the cavity walls between the cavity edge and cavity bottom; and defining slits within the first metal below the slits through the second metal.
Claim 9
Independent Claim
95 words
A method of manufacturing a hollow point bullet, comprising the following steps: providing a quantity of a deformable first metal for a bullet core; electroplating the core with a second metal; forming a electroplated cavity, the cavity having an edge, a bottom and walls between the edge and bottom in one end of the core; splitting apart the second metal within the cavity thereby defining slits through the second metal along the cavity walls between the cavity edge and cavity bottom; and defining slits within the first metal below the slits through the second metal.
Claim 10
Dependent Claim
25 words
The method of claim 7 wherein forming an electroplated cavity comprises pressing a multiple-edged hollow point tapered tip into the one end of the core.
Claim 11
Independent Claim
28 words
The method of claims 7 including forming an ogive of the bullet on the exterior of the one end of the core simultaneously with inclining the cavity walls.
Claim 12
Dependent Claim
31 words
The method of claim 9 wherein inclining the cavity walls while simultaneously forming the ogive comprises placing the core in a tapered die and pressing the core against a tapered tip.
References Cited (Backward Citations)
US219840A
Cited
US376302A
Cited
US1080974A
Cited
US1633168A
Cited
US1715788A
Cited
US1730871A
Cited
US1681295A
Cited
US2838000A
Cited
US3165809A
Cited
US3311962A
Cited
US3349711A
Cited
US3431612A
Cited
US3881421A
Cited
US4193348A
Cited
US4387492A
Cited
US4882822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-01-13 | 1995-07-15 | 1996-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-13 | 1999-07-15 | 2000-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-13 | 2003-07-15 | 2004-01-14 | $7700.00 | Window Closed / Lapsed |