Patent US3557656A successfully refreshed from Google Patents.
US3557656A
Expired / Lapsed
US
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Charging explosive projectiles, especially hollow charge projectiles
Assignee: SOC TECHNIQUE DE RECHERCHES INDUSTIELLES ET MECHANIQUES
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Filing: 1965-03-02
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Granted: 1971-01-26
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Expires: 1985-03-02
Abstract
Abstract Explosive projectiles are charged with the aid of a mixture comprising a molten liquid explosive and a granular solid explosive more brisant and powerful than the molten liquid explosive. During charging the projectile is set in motion by a rotation about its longitudinal axis, that is to say, the projectile, being vertically positioned, the rotation about the longitudinal axis of the projectile is carried out during cooling of the projectile filled with explosive mixture. During centrifuging and cooling the projectile is furnished with a plug sealing the bottom of the projectile, said plug having an inner shape in contact with the explosive mixture of such form that the centrifuging throws out toward the periphery the particles of the heavy, brisant, powerful, nonmolten explosive.
Inventors
- 👤 Michel Precoul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:25
CPC Classifications
F; F42; F42B; F42B1/00; F42B1/02; F42B1/036; F42B33/00; F42B33/02; F42B33/0214; F42B33/0221
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
68 words
In a process for charging an explosive projectile having a base plug with a fluid mixture comprising a molten liquid explosive and a heavy, brisant and powerful explosive in granular, nonmolten form, the imprOvement which comprises rotating the projectile about its longitudinal axis during charging and deflecting the nonmolten explosive particles toward the periphery of the projectile by the action of a surface provided on said base plug.
Claim 2
Dependent Claim
68 words
In a process for charging an explosive projectile having a base plug with a fluid mixture comprising a molten liquid explosive and a heavy, brisant and powerful explosive in granular, nonmolten form, the imprOvement which comprises rotating the projectile about its longitudinal axis during charging and deflecting the nonmolten explosive particles toward the periphery of the projectile by the action of a surface provided on said base plug.
Claim 3
Dependent Claim
14 words
The process claimed in claim 1 wherein the nonmolten explosive is decanted by gravity.
Claim 4
Dependent Claim
19 words
The process claimed in claim 1 wherein the nonmolten explosive is decanted by gravity in a separate prior operation.
Claim 5
Dependent Claim
23 words
The process claimed in claim 1 wherein the plug has an interior cusp directed toward the projectile along the axis of the projectile.
Claim 6
Dependent Claim
21 words
The process claimed in claim 1 in which the plug has a section in the form of a quarter hollow torus.
Claim 7
Dependent Claim
21 words
The process claimed in claim 1 in which the plug has a section in the form of a half hollow torus.
Claim 8
Dependent Claim
123 words
In a process for charging hollow charge explosive projectiles with a fluid mixture comprising a molten liquid explosive and a heavy, brisant and powerful explosive in granular nonmolten form, said projectile having a forward end and a primer end and including an inner sheath for the hollow charge, the improvement which comprises rotating the projectile, disposed vertically, about its longitudinal axis during charging and transferring the particles of nonmolten explosive from the axis to the periphery of the charge to cause an impoverishment in the concentration of nonmolten explosive particles in the axial part of the zone lying between the apex of the conical inner sheath and the primer end of the charge, with a corresponding enrichment at the periphery of that zone.
Claim 9
Dependent Claim
123 words
In a process for charging hollow charge explosive projectiles with a fluid mixture comprising a molten liquid explosive and a heavy, brisant and powerful explosive in granular nonmolten form, said projectile having a forward end and a primer end and including an inner sheath for the hollow charge, the improvement which comprises rotating the projectile, disposed vertically, about its longitudinal axis during charging and transferring the particles of nonmolten explosive from the axis to the periphery of the charge to cause an impoverishment in the concentration of nonmolten explosive particles in the axial part of the zone lying between the apex of the conical inner sheath and the primer end of the charge, with a corresponding enrichment at the periphery of that zone.
Claim 10
Dependent Claim
25 words
The process claimed in claim 7 wherein the projectile filled with the fluid explosive mixture is cooled and the rotation is carried out during cooling.
Claim 11
Dependent Claim
24 words
The process claimed in claim 8 wherein the molten explosive is poured with the aid of gravity into the po projectile to fill it.
Claim 12
Dependent Claim
14 words
The process l claimed in claim 7 wherein the projectile is heated during rotation.
Claim 13
Dependent Claim
20 words
The process claimed in claim 7 wherein during rotation the projectile is provided with a support-funnel filled with explosive mixture.
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |