US3983820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projectile having a lightened base
Assignee: Thales SA
•
Filing: 1974-08-01
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Granted: 1976-10-05
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Expires: 1994-08-01
Abstract
Abstract A projectile having an elongated body portion to the aft end of which is attachable a base constructed of thinner metal than the projectile body, there further being an isotropic charge positioned in the projectile which is subjected to pressure via the base when the charge is exploded in a gun barrel. Also taught is a method of assembling the charge into the projectile.
Inventors
- 👤 Roger Crepin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:06
CPC Classifications
F; F42; F42B; F42B30/00; F42B30/08; F42B15/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
52 words
A projectile comprising an elongated body element including a forwardly extending ogive nose portion and a rearwardly extending removable base portion, at least one isotropic, incompressible explosive charge in said body, said base portion being urged against said charge by resilient means interposed between the elongated body element and said base portion.
Claim 2
Dependent Claim
52 words
A projectile comprising an elongated body element including a forwardly extending ogive nose portion and a rearwardly extending removable base portion, at least one isotropic, incompressible explosive charge in said body, said base portion being urged against said charge by resilient means interposed between the elongated body element and said base portion.
Claim 3
Dependent Claim
22 words
A projectile as claimed in claim 1, in which said resilient means is supported by further means associated with said elongated body.
Claim 4
Dependent Claim
19 words
A projectile as claimed in claim 2, in which said further means is threadedly secured to said elongated body.
Claim 5
Dependent Claim
18 words
A projectile as claimed in claim 1, in which the removable base portion includes an annular rim means.
Claim 6
Dependent Claim
23 words
A projectile as claimed in claim 4, in which said removable base portion includes a portion adapted to shroud the annular rim means.
Claim 7
Dependent Claim
18 words
A projectile as claimed in claim 1, in which the base portion also includes a terminal nozzle element.
Claim 8
Dependent Claim
18 words
A projectile as claimed in claim 1, in which the base portion also includes a deformable end wall.
Claim 9
Dependent Claim
18 words
A projectile as claimed in claim 1, in which the explosive charge is coated with a plastic material.
Claim 10
Dependent Claim
16 words
A projectile as claimed in claim 8, in which the plastic material is a cold-polymerizable product.
References Cited (Backward Citations)
US2056098A
Cited
US2246429A
Cited
FR828487A
Cited
US2373883A
Cited
US2507878A
Cited
US2922368A
Cited
US2877504A
Cited
US3374740A
Cited
US3628457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-05 | 1980-04-05 | 1980-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-05 | 1984-04-05 | 1984-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-05 | 1988-04-05 | 1988-10-05 | $7700.00 | Window Closed / Lapsed |