US3265778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for extruding explosives
Assignee: Trojan Powder Co
•
Filing: 1964-02-10
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Granted: 1966-08-09
•
Expires: 1984-02-10
Abstract
No abstract record available.
Inventors
- 👤 George L Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:09
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/0075; B; B29; B29C; B29C48/00; B29C48/25; B29C48/94; B29C48/03; B29C48/06; B29C48/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A PROCESS FOR EXTRUDING AN EXPLOSIVE COMPOSITION OF EXTRUDABLE CONSISTENCY, COMPRISING A PRIMARY EXPLOSIVE AND SENSITIVE TO DETONATION AT PRESSURES IN EXCESS OF ABOUT 60 P.S.I., AND AT ELEVATED TEMPERATURES, IN ORDER TO MINIMIZE PRESSURE AND HEAT-GENERATION DURING EXTRUSION, COMPRISING CONFINING SAID EXPLOSIVE COMPOSITION WITHIN A PASSAGE OF RELATIVELY SMALL DIAMETER TO FORM AN EXPLOSIVE COLUMN OF SUBSTANTIAL LENGTH THEREIN, AND MOVING THE EXPLOSIVE COLUMN ALONG THE PASSAGE BY APPLICATION OF A PRESSURE BELOW ABOUT 60 P.S.I. TO ONE END THEREOF, WHILE APPLYING A FILM OF LIQUID LUBRICANT AT A PRESSURE WITHIN THE RANGE FROM THE EXTRUSION PRESSURE TO 50 P.S.I. GREATER THAN THE EXTRUSION PRESSURE, BETWEEN THE SURFACE OF THE EXPLOSIVE COLUMN AND THE WALL OF THE PASSAGE, WHEREBY THE EXPLOSIVE COMPOSITION IS EXTRUDED SAFELY AT A PRESSURE AND TEMPERATURE BELOW THAT AT WHICH DETONATION OF THE EXPLOSIVE OCCURS.
Claim 2
Dependent Claim
140 words
A PROCESS FOR EXTRUDING AN EXPLOSIVE COMPOSITION OF EXTRUDABLE CONSISTENCY, COMPRISING A PRIMARY EXPLOSIVE AND SENSITIVE TO DETONATION AT PRESSURES IN EXCESS OF ABOUT 60 P.S.I., AND AT ELEVATED TEMPERATURES, IN ORDER TO MINIMIZE PRESSURE AND HEAT-GENERATION DURING EXTRUSION, COMPRISING CONFINING SAID EXPLOSIVE COMPOSITION WITHIN A PASSAGE OF RELATIVELY SMALL DIAMETER TO FORM AN EXPLOSIVE COLUMN OF SUBSTANTIAL LENGTH THEREIN, AND MOVING THE EXPLOSIVE COLUMN ALONG THE PASSAGE BY APPLICATION OF A PRESSURE BELOW ABOUT 60 P.S.I. TO ONE END THEREOF, WHILE APPLYING A FILM OF LIQUID LUBRICANT AT A PRESSURE WITHIN THE RANGE FROM THE EXTRUSION PRESSURE TO 50 P.S.I. GREATER THAN THE EXTRUSION PRESSURE, BETWEEN THE SURFACE OF THE EXPLOSIVE COLUMN AND THE WALL OF THE PASSAGE, WHEREBY THE EXPLOSIVE COMPOSITION IS EXTRUDED SAFELY AT A PRESSURE AND TEMPERATURE BELOW THAT AT WHICH DETONATION OF THE EXPLOSIVE OCCURS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |