US4334939A
Expired / Lapsed
US
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TL-78 Explosive composition
Assignee: International Minerals and Chemical Corp
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Filing: 1980-11-25
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Granted: 1982-06-15
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Expires: 2000-11-25
Abstract
Abstract An explosive composition comprising ammonium nitrate, a nitroalkane, a sensitizer, and an oxidizable fuel.
Inventors
- 👤 Ted E. Bushman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:52
CPC Classifications
C; C06; C06B; C06B31/00; C06B31/28; C06B31/32; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/112; Y10S149/114
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
26 words
An explosive composition suitable for small diameter bore holes consisting of comminuted ammonium nitrate 83-91% by weight, nitropropane 1-9%, flake aluminum sensitizer 1∝4%, comminuted coal 1-4%.
Claim 2
Dependent Claim
26 words
An explosive composition suitable for small diameter bore holes consisting of comminuted ammonium nitrate 83-91% by weight, nitropropane 1-9%, flake aluminum sensitizer 1∝4%, comminuted coal 1-4%.
Claim 3
Dependent Claim
14 words
The composition of claim 1 wherein the ammonium nitrate passes a 16 mesh sieve.
Claim 4
Dependent Claim
17 words
The composition of claim 1 wherein the ammonium nitrate is present in an amount of about 88%.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein the coal passes a 20 mesh screen.
Claim 6
Dependent Claim
10 words
The composition of claim 1 wherein the nitropropane is 1-nitropropane.
Claim 7
Dependent Claim
10 words
The composition of claim 1 wherein the nitropropane is 2-nitropropane.
Claim 8
Dependent Claim
19 words
The composition consisting of comminuted ammonium nitrate 88% by weight, nitropropane 6%, aluminum flake 3%, and comminuted coal 3%.
Claim 9
Dependent Claim
19 words
The composition consisting of comminuted ammonium nitrate 88% by weight, nitropropane 6%, aluminum flake 3%, and comminuted coal 3%.
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) | 1985-06-14 | 1985-12-14 | 1986-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-14 | 1989-12-14 | 1990-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-14 | 1993-12-14 | 1994-06-15 | $7700.00 | Window Closed / Lapsed |