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US 6,588,700 B2Granted
Precision guided extended range artillery projectile tactical base
AssigneeRaytheon Company
InventorsJames L. Moore, Gary H. Johnson, William S. Peterson, Rajesh H. Shah, Richard Dryer, Conlee O. Quortrup
Life of this patent
Estimating the term…
Abstract
A tactical base for a guided projectile includes a base structure, and an adaptor structure for securing the base structure to a forward section of the projectile. The base further includes a plurality of fin slots, with a plurality of insert structures fitted into corresponding ones of the fin slots. A plurality of deployable fins are pivotally mounted to the base structure and supported within the insert structures for movement between a stowed position and a deployed position.
Claims38
A tactical base for a projectile, comprising:
- a base structure having a forward bulkhead in a hemispherical dome shape;
- a plurality of fin lots defined in the base structure;
- a plurality of insert structures fitting into corresponding ones of the fin slots;
- a plurality of deployable fins mounted to the base structure and supported within the insert structures for movement between a stowed position and a deployed position.
1 more element
A tactical base for a projectile, comprising:
- a base structure;
- a plurality of fin slots defined in the base structure;
- a plurality of insert structures fitting into corresponding ones of the fin slots
- a plurality of deployable fins mounted to the base structure and supported within the insert structures for movement between a stowed position and a deployed position,
- an adapter structure for securing the base structure to a forward section of the projectile, and wherein the base structure has a threaded portion at a forward end, and wherein said adapter structure threading engages with said threaded portion.
2 more elements
A tactical base for a projectile, comprising:
- a base structure;
- a plurality of fin slot defined in the base structure;
- a plurality of insert structures fitting into corresponding ones of the fin slots;
- a plurality of deployable fins mounted to the base structure and supported within the insert structures for movement between a stowed position and a deployed position, wherein the base structure has defined therein a plurality of cavities each of which are open at an aft base wall, and a plurality of radially extending walls defining said cavities and said fin slots, and wherein during firing of the projectile from a gun barrel, gasses at high pressure generated from a propellant enter said cavities and tend to deflect said walls into compression with said inserts and said fins, to prevent premature fin deployment before the projectile has left the gun barrel.
1 more element
A base for a projectile, comprising:
- a base structure having a forward bulkhead in a hemispherical dome shape;
- a plurality of fin slots defined in the base structure;
- a plurality of deployable fins mounted to the base structure and supported within the fin slots for movement between a stowed position and a deployed position.
A projectile, comprising:
- a nose portion;
- a payload portion assembled to the nose portion;
- a base structure connected to the payload portion and having a plurality of fin slots defined in the base structure;
- a plurality of insert structures fitting into corresponding ones of the fin slots;
- a plurality of deployable fins pivotally mounted to the base structure and supported within the insert structures for movement between a stowed position and a deployed position;
- wherein the base structure is a unitary, one-piece structure which includes an aft end having a plurality of cavities formed therein, the cavities separated by a set of corresponding radial ribs extending outwardly to a base outer surface, and wherein the base structure has a forward bulkhead in a shape of a hemisphere.
3 more elements
A projectile, comprising:
- a nose portion;
- a payload portion assembled to the nose portion;
- a base structure connected to the payload portion and having a plurality of fin slots defined in the base structure, and further including a circumferential groove formed in a forward portion of the base structure for receiving therein an obturator structure;
- a plurality of insert structures fitting into corresponding ones of the fin slots;
- a plurality of deployable fins pivotally mounted to the base structure and supported within the insert structures for movement between a stowed position and a deployed position.
2 more elements
A projectile, comprising:
- a nose portion;
- a payload portion assembled to the nose portion;
- a base structure connected to the payload portion and having a plurality of fin slots defined in the base structure;
- a plurality of insert structures fitting into corresponding ones of the fin slots;
- a plurality of deployable fins pivotally mounted to the base structure and supported within the insert structures for movement between a stowed position and a deployed position;
- and
- wherein the base structure has defined therein a plurality of cavities each of which are open at an aft base wall, and a plurality of radially extending walls defining said cavities and said fin slots, and wherein during firing of the projectile from a gun barrel, gasses at high pressure generated from a propellant reacts on said cavities and tend to deflect said walls into compression with said inserts and said fins, to prevent premature fin deployment before the projectile has left the gun barrel.
4 more elements
A projectile, comprising:
- a nose portion;
- a payload portion assembled to the nose portion;
- a base structure connected to the payload portion and having a plurality of fin slots defined in the base structure, the base structure having a forward bulkhead in a shape of a hemisphere;
- a plurality of deployable fins pivotally mounted to the base structure and supported within the fin slots for movement between a stowed position and a deployed position.
1 more element
Dependencies are inferred from the claim text.