US3865038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deterrent ammunition projectile
Assignee: Individual
•
Filing: 1973-07-13
•
Granted: 1975-02-11
•
Expires: 1993-07-13
Abstract
Abstract Deterrent ammunition, including a projectile of soft elastic rupturable material, such as natural or synthetic rubber or plastic, having a charge of flowable material, such as finely divided particulate or powder, liquid or gas, carried in a cavity having relatively thin longitudinal rupture wall zones and thicker longitudinal strengthening zones bounding the cavity, with a generally ogive-forming nose section, having an over-all effectively more rigid, yet soft elastic, piston-forming nose end, the elastic thicker longitudinal wall zones enabling outward flexing thereof in response to rearward piston movement of the piston-forming nose end on target impact. The projectile may be carried in and fired from a conventional cartridge case and ejected from the cartridge by ignition of propellant in the cartridge, which may effect gas pressure directly on the projectile rear end or on a pusher element or elements engaging with the projectile.
Inventors
- 👤 Irwin R Barr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:52
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/40; F42B12/46; F42B12/50
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
190 words
Deterrent ammunition, comprising, a projectile formed by a rupturable flexible side wall section with a cavity formed therein and having an annular bounding wall with annularly spaced plural longitudinally extending thinner weakened rupturable longitudinal wall zones which are substantially weaker than interconnecting relatively thicker structurally reinforcing side wall sections between said thinner weakened zones, said side wall section being open at its rear end for securement to the forward end of a separate base section, nose and base sections closing said cavity at its forward and rearward ends, and a flowable dispersable material charge in said cavity for dispersal upon impact of said projectile with a target, said base section being a separate body secured at its foRward end to the open rear end of said rupturable flexible side wall section along an annular rupturable shouldered connection zone therewith, said base section being relatively substantially more rigid as a body than said wall section and forming a forwardly moving piston acting against said charge and said side wall section upon impact of said nose with a target mass, to thereby enable rupture along one or more of the respective zones.
Claim 2
Dependent Claim
190 words
Deterrent ammunition, comprising, a projectile formed by a rupturable flexible side wall section with a cavity formed therein and having an annular bounding wall with annularly spaced plural longitudinally extending thinner weakened rupturable longitudinal wall zones which are substantially weaker than interconnecting relatively thicker structurally reinforcing side wall sections between said thinner weakened zones, said side wall section being open at its rear end for securement to the forward end of a separate base section, nose and base sections closing said cavity at its forward and rearward ends, and a flowable dispersable material charge in said cavity for dispersal upon impact of said projectile with a target, said base section being a separate body secured at its foRward end to the open rear end of said rupturable flexible side wall section along an annular rupturable shouldered connection zone therewith, said base section being relatively substantially more rigid as a body than said wall section and forming a forwardly moving piston acting against said charge and said side wall section upon impact of said nose with a target mass, to thereby enable rupture along one or more of the respective zones.
Claim 3
Dependent Claim
66 words
Deterrent ammunition according to claim 1, said nose and wall sections being formed of relatively soft elastic, material rupturable at said thinner weakened zones in response to internal cavity pressures thereon as a function of impacting said nose section with an object; and said thicker side wall sections being outwardly flexible in response to said internal cavity pressure and rearward impact movement of said nose section.
Claim 4
Dependent Claim
29 words
Deterrent ammunition according to claim 2, said wall section having a plurality of convex wall sections, with longitudinally grooved sections therebetween and forming said longitudinally extending thinner wall zones.
Claim 5
Dependent Claim
50 words
Deterrent ammunition according to claim 2, said nose section having a generally ogive shape and including a relatively thick piston nose portion, with a relatively flexible annular wall section extending rearward of said piston nose section and forming a flexible connection between said piston nose section and said base section.
Claim 6
Dependent Claim
29 words
Deterrent ammunition according to claim 1, said base section being substantially thicker and stronger than said flexible side wall section, said base section being reinforced with glass fiber filling.
Claim 7
Dependent Claim
114 words
Deterrent ammunition comprising a projectile formed by a rupturable flexible side wall section with a cavity formed therein and having an annular bounding wall with annularly spaced plural longitudinally extending thinner weakened longitudinal wall zones which are substantially weaker than interconnecting relatively thicker structurally reinforcing side wall sections between said thinner weakened zones, nose and base sections closing said cavity at its forward and rearward ends, and a flowable dispersable material charge in said cavity for dispersal upon impact of said projectile with a target, said projectile having a rifling band thereon, and a relatively rigid reinforcing annulus forming a portion of said base section, said rifling band being formed on said reinforcing annulus.
Claim 8
Dependent Claim
114 words
Deterrent ammunition comprising a projectile formed by a rupturable flexible side wall section with a cavity formed therein and having an annular bounding wall with annularly spaced plural longitudinally extending thinner weakened longitudinal wall zones which are substantially weaker than interconnecting relatively thicker structurally reinforcing side wall sections between said thinner weakened zones, nose and base sections closing said cavity at its forward and rearward ends, and a flowable dispersable material charge in said cavity for dispersal upon impact of said projectile with a target, said projectile having a rifling band thereon, and a relatively rigid reinforcing annulus forming a portion of said base section, said rifling band being formed on said reinforcing annulus.
Claim 9
Dependent Claim
13 words
Deterrent ammunition according to claim 6, said reinforcing annulus being a reinforcing cup.
Claim 10
Dependent Claim
14 words
Deterrent ammunition according to claim 7, said reinforcing cup being formed of thermoplastic resin.
Claim 11
Dependent Claim
15 words
Deterrent ammunition according to claim 8, said reinforcing cup being formed of glass-filled thermoplastic resin.
Claim 12
Dependent Claim
172 words
Deterrent ammunition, comprising a projectile formed by a rupturable flexible side wall section with a cavity formed therein and having an annular bounding wall with annularly spaced plural longitudinally extending thinner weakened rupturable longitudinal wall zones which are substantially weaker than interconnecting relatively thicker structurally reinforcing side wall sections between said thinner weakened zones, said side wall section being open at its rear end for securement to the forward end of a separate base section, and nose and base sections closing said cavity at its forward and rearward ends, said base section being a separate body secured at its forward end to the open rear end of said rupturable flexible side wall section along an annular rupturable shouldered connection zone therewith, said base section being relatively substantially more rigid as a body than said wall section and forming a forwardly moving piston acting against said charge and said side wall section upon impact of said nose with a target mass, to thereby enable rupture along one or more of the respective zones.
Claim 13
Dependent Claim
172 words
Deterrent ammunition, comprising a projectile formed by a rupturable flexible side wall section with a cavity formed therein and having an annular bounding wall with annularly spaced plural longitudinally extending thinner weakened rupturable longitudinal wall zones which are substantially weaker than interconnecting relatively thicker structurally reinforcing side wall sections between said thinner weakened zones, said side wall section being open at its rear end for securement to the forward end of a separate base section, and nose and base sections closing said cavity at its forward and rearward ends, said base section being a separate body secured at its forward end to the open rear end of said rupturable flexible side wall section along an annular rupturable shouldered connection zone therewith, said base section being relatively substantially more rigid as a body than said wall section and forming a forwardly moving piston acting against said charge and said side wall section upon impact of said nose with a target mass, to thereby enable rupture along one or more of the respective zones.
Claim 14
Dependent Claim
66 words
Deterrent ammunition according to claim 10, said nose and wall sections being formed of relatively soft elastic material rupturable at said thinner weakened zones in response to internal cavity pressures thereon as a function of impacting said nose section with an object, and said thicker side wall sections being outwardly flexible in response to said internal cavity pressure and rearward impact movement of said nose section.
Claim 15
Dependent Claim
29 words
Deterrent ammunition according to claim 11, said wall section having a plurality of convex wall sections, with longitudinally grooved sections therebetween and forming said longitudinally extending thinner wall zones.
Claim 16
Dependent Claim
50 words
Deterrent ammunition according to claim 11, said nose section having a generally ogive shape and including a relatively thick piston nose portion, with a relatively flexible annular wall section extending rearward of said piston nose section and forming a flexible connection between said piston nose section and said base section.
Claim 17
Dependent Claim
20 words
Deterrent ammunition according to claim 13, said base section being substantially thicker and stronger than said flexible side wall section.
Claim 18
Dependent Claim
19 words
Deterrent ammunition according to claim 13, said base section being formed of rubber being reinforced with glass fiber filling.
Claim 19
Dependent Claim
60 words
Deterrent ammunition according to claim 11, said nose section having a generally ogive shape and including a relatively thick piston nose portion, with a relatively flexible annular wall section extending rearward of said piston nose section and forming a flexible connection between said piston nose section and said base section, said base section being formed of glass fiber filled material.
Claim 20
Dependent Claim
112 words
Deterrent ammunition according to claim 10, said nose and wall sections being formed of relatively soft elastic material rupturable at said thinner weakened zones in response to internal cavity pressures thereon as a function of impacting said nose section with an object, and said thicker side wall sections being outwardly flexible in response to said internal cavity pressure and rearward impact movement of said nose section, a relatively rigid reinforcing annulus disposed about said projectile, said relatively rigid reinforcing annulus having a circumferentially weakened longitudinal separation zone enabling radial expansion of said annulus for rifling engraving engagement with a barrel bore as a function of set-back forces on said projectile during firing.
Claim 21
Dependent Claim
17 words
Deterrent ammunition according to claim 17, said reinforcing annulus being longitudinally split along said weakened separation zone.
Claim 22
Dependent Claim
33 words
Deterrent ammunition according to claim 18, said reinforcing annulus being a longitudinally split sleeve separable from said base, side walls and nose sections of said projectile after exit from a rifled barrel bore.
Claim 23
Dependent Claim
156 words
Deterrent ammunition, comprising a projectile formed by a rupturable flexible side wall section with a cavity formed therein and having an annular bounding wall with annularly spaced plural longitudinally extending thinner weakened longitudinal wall zones which are substantially weaker than interconnecting relatively thicker structurally reinforcing side wall sections between said thinner weakened zones, and nose and base sections closing said cavity at its forward and rearward ends, said nose and wall sections being formed of relatively soft elastic material rupturable at said thinner weakened zones in response to internal cavity pressures thereon as a function of impacting said nose section with an object, and said thicker side wall sections being outwardly flexible in response to said internal cavity pressure and rearward impact movement of said nose section, said projectile having a rifling band thereon, and a relatively rigid reinforcing annulus forming a portion of said base section, said rifling band being formed on said reinforcing annulus.
Claim 24
Dependent Claim
156 words
Deterrent ammunition, comprising a projectile formed by a rupturable flexible side wall section with a cavity formed therein and having an annular bounding wall with annularly spaced plural longitudinally extending thinner weakened longitudinal wall zones which are substantially weaker than interconnecting relatively thicker structurally reinforcing side wall sections between said thinner weakened zones, and nose and base sections closing said cavity at its forward and rearward ends, said nose and wall sections being formed of relatively soft elastic material rupturable at said thinner weakened zones in response to internal cavity pressures thereon as a function of impacting said nose section with an object, and said thicker side wall sections being outwardly flexible in response to said internal cavity pressure and rearward impact movement of said nose section, said projectile having a rifling band thereon, and a relatively rigid reinforcing annulus forming a portion of said base section, said rifling band being formed on said reinforcing annulus.
Claim 25
Dependent Claim
13 words
Deterrent ammunition according to claim 20, said reinforcing annulus being a reinforcinG cup.
Claim 26
Dependent Claim
14 words
Deterrent ammunition according to claim 21, said reinforcing cup being formed of thermoplastic resin.
Claim 27
Dependent Claim
15 words
Deterrent ammunition according to claim 22, said reinforcing cup being formed of glass-filled thermoplastic resin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |