Patent US3619306A successfully refreshed from Google Patents.
US3619306A
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Molded explosive bodies having variable detonation speeds
Assignee: Dynamit Nobel AG
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Filing: 1968-09-12
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Granted: 1971-11-09
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Expires: 1988-09-12
Abstract
Abstract Process of manufacturing molded explosive bodies so that their detonation speeds can be varied within a defined range by reducing the density of the molded body. The reduction in density can be effected by incorporating into the starting components, porous, voluminous or air-containing materials. The solidification of the resulting compositions is thereafter carried out by incorporating into the above starting components a suitable binding agent, varying the working pressure in the forming of the bodies, or suitably regulating the sintering conditions. The resultant bodies are characterized by their reduced densities and therewith reduced detonation speeds and by their high-mechanical strengths.
Inventors
- 👤 Adolf Berthmann
- 👤 Gerhard Martin
- 👤 Maximilian Klunsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:15
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/005; C06B23/00; C06B23/002; C06B23/003
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
11 words
The process of claim 1 wherein said meltable explosive is trinitrotoluene.
Claim 2
Dependent Claim
70 words
A homogeneous, high strength, molded, explosive body having a predetermined detonation speed comprising a sintered mixture of particles of a meltable explosive and of a density reducing material, said meltable explosive being selected from the group consisting of aromatic nitro compounds, nitraamines, nitrosamines, nitric acid esters and ammonia nitrate and said density reducing material consisting of a finely porous, voluminous, inert ingredient having a large surface area and low-bulk weight.
Claim 3
Dependent Claim
28 words
A homogeneous high strength molded explosive body according to claim 3 wherein said meltable explosive is trinitrotoluene and said density reducing material are hollow spheres of phenolic resin.
Claim 4
Dependent Claim
25 words
A homogeneous high strength molded explosive body according to claim 3 wherein said meltable explosive is trinitrotoluene and said density reducing material is cork flour.
Claim 5
Dependent Claim
47 words
A homogeneous high strength molded explosive body according to claim 3 wherein said explosive component comprises a mixture of ammonium nitrate and trinitrotoluene and said density reducing material is a member selected from the group consisting of hollow spheres of phenolic resin, wood flour and vegetable flour.
References Cited (Backward Citations)
US1709498A
Cited
US2978339A
Cited
US3191535A
Cited
US3398215A
Cited
US3247033A
Cited
US3198677A
Cited
US3309249A
Cited
US3338165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |