US4767064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the grinding of explosives
Assignee: Airbus Defence and Space GmbH
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Filing: 1986-11-20
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Granted: 1988-08-30
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Expires: 2006-11-20
Abstract
Abstract In a method for the wet grinding of explosive, a homogeneous suspension with a given ratio of water to explosive of e.g. 4:1 is produced in a vessel with an agitator. The level in the vessel (10) is adjusted as the suspension is being supplied to the mill in such a way that it does fall below the level of the blades of the agitator.
Inventors
- 👤 Heribert Resch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:13
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
105 words
A method of grinding explosives using a vessel having an agitator with agitator elements operable adjacent the bottom of the vessel and including a grinding mill adjacent the vessel, comprising reducing the explosive into smaller particles and directing water and the particles into the vessel to produce a water and explosive suspension mixture which has a predetermined ratio of water to exlosive, and directing a portion of the suspension mixture into the grinding mill in an amount so as to insure that the level of the mixture does not fall below the level of the agitator, and grinding the suspension mixture in the grinding mill.
Claim 2
Independent Claim
105 words
A method of grinding explosives using a vessel having an agitator with agitator elements operable adjacent the bottom of the vessel and including a grinding mill adjacent the vessel, comprising reducing the explosive into smaller particles and directing water and the particles into the vessel to produce a water and explosive suspension mixture which has a predetermined ratio of water to exlosive, and directing a portion of the suspension mixture into the grinding mill in an amount so as to insure that the level of the mixture does not fall below the level of the agitator, and grinding the suspension mixture in the grinding mill.
Claim 3
Dependent Claim
22 words
A method according to claim 1, wherein after grinding the suspension mixture, including separating out the water from the ground suspension mixture.
Claim 4
Dependent Claim
43 words
A method according to claim 1 wherein the vessel is filled by first adding water until it reaches at least the level of the agitator element thereafter the explosive is added to a selected quantity to give a selected water to explosive ratio.
Claim 5
Dependent Claim
48 words
A method according to claim 3 wherein the grinding is effected by a rotatable blade and wherein the suspension is filled at least to the level of the blade and thereafter water is added together with a quantitiy of explosive required for a given ratio into the vessel.
Claim 6
Dependent Claim
27 words
A method according to claim 4 wherein the level of the vessel is adjusted so that it does not go beyond the active zone of said blade.
Claim 7
Dependent Claim
15 words
A method according to claim 5 wherein the ratio of water to explosive is 4:1.
Claim 8
Dependent Claim
27 words
A method according to claim 4 wherein an explosive octogen and hexogen is ground and the given ratio of water to explosive is at least from 3:1.
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) | 1991-08-30 | 1992-02-29 | 1992-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-30 | 1996-02-29 | 1996-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-30 | 2000-02-29 | 2000-08-30 | $7700.00 | Window Closed / Lapsed |