Patent US4263068A successfully refreshed from Google Patents.
US4263068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
TL-166 Blasting agent
Assignee: International Minerals and Chemical Corp
•
Filing: 1979-06-28
•
Granted: 1981-04-21
•
Expires: 1999-06-28
Abstract
Abstract A blasting agent comprising ammonium nitrate, fuel, a nitroalkane and bentonite as a thickening agent.
Inventors
- 👤 Donald W. Edwards
- 👤 Thomas M. Zukovich
- 👤 Ronald D. Thomas
- 👤 Ronald M. Weigel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:00
CPC Classifications
C; C06; C06B; C06B31/00; C06B31/28; C06B31/285; C06B23/00; C06B23/001
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
31 words
A blasting agent comprising ammonium nitrate, a fuel and a thickener therefor, the fuel comprising a nitroalkane of 1 to 3 carbon atoms and fuel oil and the thickener comprising bentonite.
Claim 2
Dependent Claim
31 words
A blasting agent comprising ammonium nitrate, a fuel and a thickener therefor, the fuel comprising a nitroalkane of 1 to 3 carbon atoms and fuel oil and the thickener comprising bentonite.
Claim 3
Dependent Claim
22 words
The composition of claim 1 wherein the fuel component is present in an amount of about 8-14% by weight of the composition.
Claim 4
Dependent Claim
22 words
The composition of claim 2 wherein the fuel component is present in an amount of about 10% by weight of the composition.
Claim 5
Dependent Claim
10 words
The composition of claim 2 wherein the nitroalkane is 1-nitropropane.
Claim 6
Dependent Claim
10 words
The composition of claim 2 wherein the nitroalkane is 2-nitropropane.
Claim 7
Dependent Claim
21 words
The composition of claim 2 wherein the fuel component consists of nitroalkane in a ratio of about 1-4:1 parts by weight.
Claim 8
Dependent Claim
15 words
The composition of claim 1 wherein the bentonite is present at about 2-8% by weight.
Claim 9
Dependent Claim
25 words
The composition of claim 1 wherein the ammonium nitrate consists of comminuted ammonium nitrate and granular ammonium nitrate in a ratio of about 80-100:20-0 respectively.
Claim 10
Dependent Claim
12 words
The composition of claim 8 wherein the ammonium nitrate is 100% comminuted.
Claim 11
Dependent Claim
16 words
The composition of claim 8 wherein the ammonium nitrate consists of 80% comminuted and 20% prilled.
Claim 12
Dependent Claim
18 words
The composition of claim 10 wherein the bentonite is present in an amount of from 2-8% by weight.
Claim 13
Dependent Claim
18 words
The composition of claim 11 wherein the bentonite is present in an amount of about 4% by weight.
Claim 14
Dependent Claim
23 words
A packaged unit of the blasting agent of claim 1 comprising the blasting agent packaged in a nylon bag of 4-8 inches diameter.
Claim 15
Dependent Claim
16 words
The packaged unit of claim 13 wherein the nylon bag is encased in a polyethylene bag.
Claim 16
Dependent Claim
23 words
The packaged unit of claim 14 wherein the nylon is of 1-2 mil thickness and the polyethylene is of from 4-5 mil thickness.
Claim 17
Dependent Claim
21 words
The composition of claim 8 wherein the comminuted ammonium nitrate and prilled ammonium nitrate are in a ratio of about 1:1.
Claim 18
Dependent Claim
15 words
The composition of claim 1 wherein the fuel oil component is miscible with the nitroalkane.
References Cited (Backward Citations)
US3713915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |