US3095335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blasting agent of multi-sized and multidensity ammonium nitrate with fuel oil
Assignee: Airmite Midwest Inc
•
Filing: 1960-03-21
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Granted: 1963-06-25
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Expires: 1980-03-21
Abstract
No abstract record available.
Inventors
- 👤 Don B Mccloud
- 👤 Dean E Albon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:25
CPC Classifications
C; C06; C06B; C06B31/00; C06B31/28; C06B31/285; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/112; Y10S149/115
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A NON-CAP-SENSITIVE BLASTING AGENT, THE COMBINATION CONSISTING ESSENTIALLY OF A HOMOGENEOUS MIXTURE OF RELATIVELY POROUS-COATED FERTILIZER-GRADE AMMONIUM-NITRATE PRILLS OF A SIZE TO SUBSTANTIALLY COMPLETELY PASS THROUGH AN 8-MESH SCREEN AND BE RETAINED ON A 20-MESH SCREEN, RELATIVELY DENSE CRYSTALLINE POWDERED FERTILIZER-GRADE AMMOMIUM NITRATE OF PARTICLES-SIZE DISTRIBUTION TO SUBSTANTIALLY COMPLETELY PASS THROUGH A 20-MESH SCREEN AND BE AT LEAST PARTIALLY RETAINED ON SCREENS OF 28, 35, 48, 100 AND 200 MESH, THE RATIO BY WEIGHT OF PRILLS TO POWDER BEING BETWEEN 28:72 AND 70:30, AND FUEL OIL, THE AMOUNT OF OIL BEING BETWEEN 4% AND 7% BY WEIGHT OF THE TOTAL MIXTURE, TO DEFINE A FREE-FLOWNG MIXTURE HAVING A DENSITY OF AT LEAST 1.1 AND A RATE DETONATION NOT LESS THAN 14,000 FEET PER SECOND.
Claim 2
Dependent Claim
125 words
IN A NON-CAP-SENSITIVE BLASTING AGENT, THE COMBINATION CONSISTING ESSENTIALLY OF A HOMOGENEOUS MIXTURE OF RELATIVELY POROUS-COATED FERTILIZER-GRADE AMMONIUM-NITRATE PRILLS OF A SIZE TO SUBSTANTIALLY COMPLETELY PASS THROUGH AN 8-MESH SCREEN AND BE RETAINED ON A 20-MESH SCREEN, RELATIVELY DENSE CRYSTALLINE POWDERED FERTILIZER-GRADE AMMOMIUM NITRATE OF PARTICLES-SIZE DISTRIBUTION TO SUBSTANTIALLY COMPLETELY PASS THROUGH A 20-MESH SCREEN AND BE AT LEAST PARTIALLY RETAINED ON SCREENS OF 28, 35, 48, 100 AND 200 MESH, THE RATIO BY WEIGHT OF PRILLS TO POWDER BEING BETWEEN 28:72 AND 70:30, AND FUEL OIL, THE AMOUNT OF OIL BEING BETWEEN 4% AND 7% BY WEIGHT OF THE TOTAL MIXTURE, TO DEFINE A FREE-FLOWNG MIXTURE HAVING A DENSITY OF AT LEAST 1.1 AND A RATE DETONATION NOT LESS THAN 14,000 FEET PER SECOND.
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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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |