US4140059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for projectiles
Assignee: Raufoss Ammunisjonsfabrikker AS
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Filing: 1977-06-27
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Granted: 1979-02-20
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Expires: 1997-06-27
Abstract
Abstract A safety device for a projectile is provided which includes a charge adapted to function as either an ignition charge or as a booster and relay charge. The charge comprises at least two components each of which comprises solid particles. These solid particles are disposed in the same cavity in the projectile and are entirely or partly separated. The particles forming the components are arranged in relation to each other such that the two components will be mixed subsequent to the firing of the projectile, responsive to the acceleration, rotation and retardation forces to which the particles are subjected after the projectile is fired. The two components comprise an oxygen donating component and a fuel component, and a third component for promoting mixing of the two may also be included.
Inventors
- 👤 Kaare R. Strandli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:27
CPC Classifications
F; F42; F42C; F42C15/00; F42C15/28; F42C15/285; Y; Y10; Y10S; Y10S102/00; Y10S102/705
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
107 words
A safety device for a projectile comprising a charge which is adapted to function either as an ignition charge or as a booster and relay charge, wherein the improvement comprises a charge comprising at least two components each of which comprises solid particles, said solid particles comprising said two components being disposed in the same cavity in the projectile, said components being at least partly separated and being arranged in relation to each other such that said components will be mixed subsequent to the firing of the projectile responsive to the acceleration, rotation and retardation forces to which the components are subjected after the projectile is fired.
Claim 2
Dependent Claim
107 words
A safety device for a projectile comprising a charge which is adapted to function either as an ignition charge or as a booster and relay charge, wherein the improvement comprises a charge comprising at least two components each of which comprises solid particles, said solid particles comprising said two components being disposed in the same cavity in the projectile, said components being at least partly separated and being arranged in relation to each other such that said components will be mixed subsequent to the firing of the projectile responsive to the acceleration, rotation and retardation forces to which the components are subjected after the projectile is fired.
Claim 3
Dependent Claim
31 words
A safety device according to claim 1, wherein said charge is placed in a central cavity in the projectile, and said charge comprises an oxygen donating component and a fuel component.
Claim 4
Dependent Claim
24 words
A safety device according to claim 2, wherein said projectile includes a nose and said cavity is arranged in said nose of the projectile.
Claim 5
Dependent Claim
64 words
A safety device according to claim 1 wherein said projectile comprises a body portion and a nose portion, said cavity is provided by a box-like body secured in the foremost part of the body portion of the projectile and arranged to house the said charge, and a detonator being provided in the nose portion of said projectile together with ignition means for said detonator.
Claim 6
Dependent Claim
55 words
A safety device according to claim 1, wherein the two charge components are arranged in a cavity and are separated in said cavity by a thin foil, said thin foil extending normal to the longitudinal axis of the projectile and being such as to be broken by the acceleration of the projectile caused by firing.
Claim 7
Dependent Claim
20 words
A safety device according to claim 1, wherein the particles of the two components are of different forms and sizes.
Claim 8
Dependent Claim
35 words
A safety device according to claim 1, wherein the charge comprises more than two components, at least one of the components in addition to said two serving to promote mixing of the said two components.
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) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |