US2887953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosive cartridge
Assignee: Individual
•
Filing: 1956-02-23
•
Granted: 1959-05-26
•
Expires: 1976-02-23
Abstract
No abstract record available.
Inventors
- 👤 Mager Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:32
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A STACK OF SUPERPOSED SIMILAR MINING CARTRIDGES EACH OF WHICH COMPRISES A THIN ELONGATED CASE, INCLUDING A CYLINDRICAL WALL MADE OF A RIGID SHEET OF METAL CONTAINING ALUMINIUM AS A PREDOMINANT COMPONENT, THE THICKNESS OF WHICH SHEET RANGES BETWEEN ABOUT 0.05 AND 0.3 MM. AND THE BREAKING RESISTANCE OF WHICH SHEET IS EQUAL TO ABOUT 3 KGS. PER SQ.CM., A BOTTOM CLOSING ONE END OF THE CYLINDRICAL WALL, AND OUTWARDLY PROJECTING ANNULAR RIB RIGID WITH THE CYLINDRICAL WALL NEAR THE BOTTOM CLOSING THE LATTER AND A CYLINDRICAL CORE OF AN EXPLOSIVE POWDER CONSTITUTED MAINLY BY INORGANIC NITRATES, FILLING THE CASE THROUGHOUT THE MAJOR PART OF ITS HEIGHT, AND A DISHED COVER INCLUDING A TRANSVERSE SOLID MAIN SECTION COVERING THE CORE IN THE CASE AND PROVIDED WITH A SUBSTANTIALLY RADIAL RECESS AND A SHORT UPSTANDING ANNULAR LATERAL WALL FITTED INSIDE THE UPPER END OF THE CASE AND PROVIDED WITH AN ANNULAR RIB FOR YIELDING ENGAGEMENT WITH THE ANNULAR RIB IN THE ADJACENT END OF THE CARTRIDGE CASE, AND A DETONATOR HOUSED INSIDE THE RECESS IN THE MAIN SECTION OF THE COVER.
Claim 2
Dependent Claim
180 words
A STACK OF SUPERPOSED SIMILAR MINING CARTRIDGES EACH OF WHICH COMPRISES A THIN ELONGATED CASE, INCLUDING A CYLINDRICAL WALL MADE OF A RIGID SHEET OF METAL CONTAINING ALUMINIUM AS A PREDOMINANT COMPONENT, THE THICKNESS OF WHICH SHEET RANGES BETWEEN ABOUT 0.05 AND 0.3 MM. AND THE BREAKING RESISTANCE OF WHICH SHEET IS EQUAL TO ABOUT 3 KGS. PER SQ.CM., A BOTTOM CLOSING ONE END OF THE CYLINDRICAL WALL, AND OUTWARDLY PROJECTING ANNULAR RIB RIGID WITH THE CYLINDRICAL WALL NEAR THE BOTTOM CLOSING THE LATTER AND A CYLINDRICAL CORE OF AN EXPLOSIVE POWDER CONSTITUTED MAINLY BY INORGANIC NITRATES, FILLING THE CASE THROUGHOUT THE MAJOR PART OF ITS HEIGHT, AND A DISHED COVER INCLUDING A TRANSVERSE SOLID MAIN SECTION COVERING THE CORE IN THE CASE AND PROVIDED WITH A SUBSTANTIALLY RADIAL RECESS AND A SHORT UPSTANDING ANNULAR LATERAL WALL FITTED INSIDE THE UPPER END OF THE CASE AND PROVIDED WITH AN ANNULAR RIB FOR YIELDING ENGAGEMENT WITH THE ANNULAR RIB IN THE ADJACENT END OF THE CARTRIDGE CASE, AND A DETONATOR HOUSED INSIDE THE RECESS IN THE MAIN SECTION OF THE COVER.
References Cited (Backward Citations)
US2052475A
Cited
US2061558A
Cited
US2238939A
Cited
US2345887A
Cited
US2358795A
Cited
GB704125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |