US4089715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosive grade aluminum powder
Assignee: HULETTS METALS Pty Ltd
•
Filing: 1976-04-22
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Granted: 1978-05-16
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Expires: 1996-04-22
Abstract
Abstract An explosive grade aluminium composition comprises an admixture of aluminium powder and a subdivided carrier therefor having a bulk density less than or equal to that of the aluminium powder and wherein at least part of the powder adheres to the carrier, a coating agent being optionally included in the admixture to facilitate the adhesion of the powder to the carrier.
Inventors
- 👤 Rudolf Scherzinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:35
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/18; C06B45/30; C06B45/32; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/114
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A flowable explosive grade aluminum composition comprising an admixture of: (1) aluminum powder having a particle size distributed between 850 microns and submicron size, said powder admixed with, (2) aluminum granules as a carrier for said aluminum powder and (3) a coating agent of an oil soluble basic dyestuff dispersed over the carrier particles in an approximately single molecule thick layer, to adhere the aluminum powder to the carrier, the resulting composition having at least part of said aluminum powder adhered thereto such that the composition has: (a) a bulk density of the order of 0.7-1.4, (b) carrier particles with aluminum particles of less than approximately 40 microns in size adhered thereto, (c) aluminum particles larger in size than approximately 40 microns, (d) and aluminum particles of approximately 40 microns and smaller in size adhered to aluminum particles of larger size, the resulting composition being flowable.
Claim 2
Dependent Claim
146 words
A flowable explosive grade aluminum composition comprising an admixture of: (1) aluminum powder having a particle size distributed between 850 microns and submicron size, said powder admixed with, (2) aluminum granules as a carrier for said aluminum powder and (3) a coating agent of an oil soluble basic dyestuff dispersed over the carrier particles in an approximately single molecule thick layer, to adhere the aluminum powder to the carrier, the resulting composition having at least part of said aluminum powder adhered thereto such that the composition has: (a) a bulk density of the order of 0.7-1.4, (b) carrier particles with aluminum particles of less than approximately 40 microns in size adhered thereto, (c) aluminum particles larger in size than approximately 40 microns, (d) and aluminum particles of approximately 40 microns and smaller in size adhered to aluminum particles of larger size, the resulting composition being flowable.
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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) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |