Patent US3815504A successfully refreshed from Google Patents.
US3815504A
Expired / Lapsed
US
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Method of making splinter shells, and splinter projectiles and splinter heads made according to this method
Assignee: Diehl Verwaltungs Stiftung
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Filing: 1972-06-12
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Granted: 1974-06-11
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Expires: 1992-06-12
Abstract
Abstract A splinter shell and method of making same according to which at least two tubular bodies of strong but deformable material are coaxially arranged with regard to each other and located one within the other while being peripherally spaced from each other by the diameter of the desired splinter bodies to be incorporated in the shell, whereupon the splinter bodies are introduced between the tubular bodies and, while the outermost tubular body is confined on its outside, the inner peripheral surface of the innermost tubular body is subjected to radially outwardly directed pressure to cause all of the tubular bodies to deform partially around the splinter bodies and to sandwich the same between the adjacent tubular bodies.
Inventors
- 👤 H Tieben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:15
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/20; F42B12/22; F42B12/32
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
156 words
A method of making a splinter shell for use in projectiles, which includes the steps of: preparing a first metallic tubular body to form the outer wall of the splinter shell to be made, inserting into said first tubular body a second metallic tubular body of an outer diameter less than the inner diameter of said first tubular body by substantially twice the maximum diameter of the splinters to be incorporated into said shell while arranging said second tubular body coaxially with said first tubular body, filling splinters into the thus formed annular chamber defined by said first and second tubular bodies, and while holding said first tubular body confined on its outer peripheral surface subjecting the inner peripheral surface of said second tubular body to radially outwardly directed pressure so as to press said first and second tubular bodies partially into said annular chamber and sandwiching said splinters between said first and second tubular bodies.
Claim 2
Independent Claim
156 words
A method of making a splinter shell for use in projectiles, which includes the steps of: preparing a first metallic tubular body to form the outer wall of the splinter shell to be made, inserting into said first tubular body a second metallic tubular body of an outer diameter less than the inner diameter of said first tubular body by substantially twice the maximum diameter of the splinters to be incorporated into said shell while arranging said second tubular body coaxially with said first tubular body, filling splinters into the thus formed annular chamber defined by said first and second tubular bodies, and while holding said first tubular body confined on its outer peripheral surface subjecting the inner peripheral surface of said second tubular body to radially outwardly directed pressure so as to press said first and second tubular bodies partially into said annular chamber and sandwiching said splinters between said first and second tubular bodies.
Claim 3
Dependent Claim
161 words
A method according to claim 1, which includes the step of inserting into said second tubular body at least one additional metallic tubular body coaxial with said second tubular body and circumferentially spaced from said second tubular body by a distance substantially equalling the diameter of splinters to be placed between said second and said additional tubular body, introducing splinters into the thus formed annular chamber defined by said second and said additional tubular body, and while holding said first tubular body confined on its outer peripherAl surface subjecting the inner peripheral surface of said additional tubular body to radially outwardly directed pressure so as to press said additional tubular body and said second tubular body partially into the annular chamber defined by said second and additional tubular bodies and sandwiching the splinters therein between said last mentioned two annular bodies simultaneously with the sandwiching of the splinters in said first mentioned annular chamber between said first and second tubular bodies.
Claim 4
Dependent Claim
15 words
A method according to claim 1, which includes the step of pre-fragmenting the tubular bodies.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |