Patent US4471699A successfully refreshed from Google Patents.
US4471699A
Expired / Lapsed
US
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Projectiles for smooth bore shooting guns
Assignee: SNIA Viscosa SpA
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Filing: 1983-03-28
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Granted: 1984-09-18
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Expires: 2003-03-28
Abstract
Abstract A projectile for a smooth bore gun includes a metal bullet, substantially de of lead, and a wad-flight control element of plastic material. The bullet is constituted by a metal body provided with an ogive with centering fins and comprises one or more cylindrical segments. The wad-flight control element comprises a container, connected to the bullet and containing the same, an amortizing portion and a cup for sealing off propellant gases. The amortizing portion and the sealing cup act to control the projectile during flight.
Inventors
- 👤 Vincenzo Turco
- 👤 Antonio Pompili
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:13
CPC Classifications
F; F42; F42B; F42B7/00; F42B7/02; F42B7/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
160 words
A projectile for use in a smooth bore gun, said projectile comprising: a metal bullet having a forward end and a rearward end; and wad-flight control means, formed of a plastic material and fixed to said bullet, for guiding the projectile through a bore during firing and for controlling the flight of the projectile after leaving the bore, said wad-flight control means comprising: a container portion rigidly fixed to and containing said bullet; an intermediate portion integral with said container portion and extending rearwardly therefrom and from said rearward end of said bullet; a sealing cup portion integral with said intermediate portion and extending rearwardly therefrom; said container having extending outwardly therefrom longitudinal fins; and said intermediate portion including at least one discoidal element extending transverse to the longitudinal axis of the projectile and a plurality of partitions connecting said discoidal element to said container portion and to said sealing cup portion, said partitions extending parallel to said longitudinal axis.
Claim 2
Dependent Claim
160 words
A projectile for use in a smooth bore gun, said projectile comprising: a metal bullet having a forward end and a rearward end; and wad-flight control means, formed of a plastic material and fixed to said bullet, for guiding the projectile through a bore during firing and for controlling the flight of the projectile after leaving the bore, said wad-flight control means comprising: a container portion rigidly fixed to and containing said bullet; an intermediate portion integral with said container portion and extending rearwardly therefrom and from said rearward end of said bullet; a sealing cup portion integral with said intermediate portion and extending rearwardly therefrom; said container having extending outwardly therefrom longitudinal fins; and said intermediate portion including at least one discoidal element extending transverse to the longitudinal axis of the projectile and a plurality of partitions connecting said discoidal element to said container portion and to said sealing cup portion, said partitions extending parallel to said longitudinal axis.
Claim 3
Dependent Claim
18 words
A projectile as claimed in claim 1, wherein said forward end of said bullet is of ogival configuration.
Claim 4
Dependent Claim
58 words
A projectile as claimed in claim 1, wherein said bullet has an intermediate section having extending therefrom fins, and cylindrical sections forwardly and rearwardly of said intermediate section and of smaller diameter than said intermediate section, wherein said container portion surrounds said cylindrical sections and extends between said fins extending outwardly from said intermediate section of said bullet.
Claim 5
Dependent Claim
33 words
A projectile as claimed in claim 3, wherein said fins of said intermediate section of said bullet and said fins of said container portion extend parallel to said longitudinal axis of the projectile.
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) | 1987-09-18 | 1988-03-19 | 1988-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-18 | 1992-03-19 | 1992-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-18 | 1996-03-19 | 1996-09-18 | $7700.00 | Window Closed / Lapsed |