Patents
US 11826818 B2: Boron steel high-pressure cartridge case
- Granted
- 2023-11-28
- Filed
- 2021-09-24 application 17484089
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A boron steel high pressure cartridge case and method of manufacturing the same is provided. The method includes cold forming a cartridge case into a drawn blank or a tubular component; annealing the cartridge case using a belt furnace, flame furnace, induction furnace, or a batch furnace; performing a machine ejector slot and trim on the cartridge case; forming the shoulder and neck of the cartridge case; performing a heat treatment of the cartridge case; and tempering the cartridge case. The cartridge case is fabricated of boron steel including ≤1.0% boron.
Source: PVGPATDIS, file of 2026-04-10 (ipg231128.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| LUVATA OHIO, INC. 6 patents | US company or organization | Delaware, OH | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Brian Swank | Delaware, OH | 6 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B21K | Making forged or pressed metal products, e.g. horse-shoes, rivets, bolts or wheels | B21K21/04 | PVGPATDIS, file of 2026-04-10 |
| B21C | Manufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling; auxiliary operations used in connection with metal-working without essentially removing material | B21C23/186 | PVGPATDIS, file of 2026-04-10 |
| B21J | Forging; hammering; pressing metal; riveting; forge furnaces | B21J5/008 | PVGPATDIS, file of 2026-04-10 |
| C21D | Modifying the physical structure of ferrous metals; general devices for heat treatment of ferrous or non-ferrous metals or alloys; making metal malleable, e.g. by decarburisation or tempering | C21D1/25 | PVGPATDIS, file of 2026-04-10 |
| C22C | Alloys | C22C38/002 | PVGPATDIS, file of 2026-04-10 |
| C23C | Coating metallic material; coating material with metallic material; surface treatment of metallic material by diffusion into the surface, by chemical conversion or substitution; coating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general | C23C2/04 | PVGPATDIS, file of 2026-04-10 |
| F42B | Explosive charges, e.g. for blasting, fireworks, ammunition | F42B5/28 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2022-11-10 | Assignment Assignment of assignor's interest | SWANK, BRIAN signed 2022-10-20 | LUVATA OHIO, INC. DELAWARE, OH | 61717/456 | PASDL, file of 2026-10-15 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.