US3894492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deterrent ammunition
Assignee: Textron Systems Corp
•
Filing: 1973-07-12
•
Granted: 1975-07-15
•
Expires: 1993-07-12
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, carried in a cross-sectionally polygonal cavity having relatively thin longitudinal rupture wall zones along the corners of the cavity and thicker longitudinal strengthening zones bounding the cavity straight wall surface sections, with a generally ogive-forming nose section having an easily flexible annular wall connecting with a thicker and more rigid piston-forming nose end of lesser lateral crosssection than the interior cavity cross-section at the rear end of the flexible annular wall for ease of rearward piston movement of the pistonforming nose end on target impact. The projectile is carried in a cartridge by a bore-riding segmented sabot of low density, low mass material and is ejected from the cartridge by ignition of propellant in the cartridge, which effects gas pressure on an obturating pusher disc engaging with the rear of the segmented sabot.
Inventors
- 👤 Irwin R Barr
- 👤 Paul L Brown
- 👤 Jr Robert W Schneppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:32
CPC Classifications
F; F42; F42B; F42B14/00; F42B14/06; F42B14/064; F42B12/00; F42B12/02; F42B12/36; F42B12/46; F42B12/50; F42B12/56; F42B14/02; F42B14/068
Claims Analysis
Total Claims: 46
Claim 1
Independent Claim
98 words
Deterrent ammunition, comprising, a projectile formed by a rupturable first housing section with a cross-sectionally polygonal cavity formed therein and having an annular bounding wall with longitudinally extending polygon corners which are substantially weaker than interconnecting structurally reinforcing side wall sections between said corners, a nose section closing said cavity at its forward end, said first housing section being formed of relatively soft elastic, rupturable material, and a discardable low mass projectile-rotating sabot engageable in substantially complementary fashion about thE annular exterior surface of said first housing and along said forward annular wall surface bounding said polygonal cavity.
Claim 2
Dependent Claim
98 words
Deterrent ammunition, comprising, a projectile formed by a rupturable first housing section with a cross-sectionally polygonal cavity formed therein and having an annular bounding wall with longitudinally extending polygon corners which are substantially weaker than interconnecting structurally reinforcing side wall sections between said corners, a nose section closing said cavity at its forward end, said first housing section being formed of relatively soft elastic, rupturable material, and a discardable low mass projectile-rotating sabot engageable in substantially complementary fashion about thE annular exterior surface of said first housing and along said forward annular wall surface bounding said polygonal cavity.
Claim 3
Dependent Claim
25 words
Deterrent ammunition according to claim 1, and a flowable dispersable material charge in said cavity for dispersal upon impact of said projectile with a target.
Claim 4
Dependent Claim
13 words
Deterrent ammunition according to claim 1, said soft elastic rupturable material being rubber.
Claim 5
Dependent Claim
14 words
Deterrent ammunition according to claim 3, said soft elastic rubber material being silicone rubber.
Claim 6
Dependent Claim
13 words
Deterrent ammunition according to claim 3, said cavity being square in cross section.
Claim 7
Dependent Claim
13 words
Deterrent ammunition according to claim 1, said cavity being square in cross section.
Claim 8
Dependent Claim
53 words
Deterrent ammunition according to claim 6, said nose section having a generally ogive shape and including a relatively thick piston nose section and a relatively flexible annular wall section rearward of said piston nose section and forming a flexible connection between said piston nose section and said square polygonal cavity annular bounding wall.
Claim 9
Dependent Claim
87 words
Deterrent ammunition according to claim 7, said cavity having a rear bounding wall zone including a relatively thick base wall having a reduced diameter exterior annular surface connecting along a connecting shoulder with a forward annular wall section of relatively larger diameter and forming a portion of said annular bounding wall for said cavity, said shoulder line bounding and adjoining the intersection zone between said weaker longitudinally extending polygon corners and the inner rear wall surface of said cavity as formed by said relatively thick base wall.
Claim 10
Dependent Claim
34 words
Deterrent ammunition according to claim 8, said intersection zone or each of said polygon corners with said rear wall surface of said cavity being formed by a chamfer longitudinally coextensive with said connecting shoulder.
Claim 11
Dependent Claim
29 words
Deterrent ammunition according to claim 9, said nose section being a separate element from said housing section and being secured thereto at the forward end of said housing section.
Claim 12
Dependent Claim
33 words
Deterrent ammunition according to claim 10, said nose section having a cavity formed therein and connecting with said polygonal cavity section to form a composite single cavity containing a flowable dispersable material charge.
Claim 13
Dependent Claim
16 words
Deterrent ammunition according to claim 11, said flowable dispersable material charge comprising finely divided particulate material.
Claim 14
Dependent Claim
51 words
Deterrent ammunition according to claim 11, further comprising said sabot having a rear base end with a forward facing undulating surface engageable in rotation-imparting engagement with the soft elastic rear surface of said housing section during forward launching of said projectile by application of forwardly directed force thereon through said sabot.
Claim 15
Dependent Claim
15 words
Deterrent ammunition according to claim 13, said sabot being formed of a plurality of segments.
Claim 16
Dependent Claim
17 words
Deterrent ammunition according to claim 13, said forwardly facing undulating surface of said sabot being radially ribbed.
Claim 17
Dependent Claim
39 words
Deterrent ammunition according to claim 15, further comprising an obturator pusher disc unit rearward of said sabot and engageable with the rear surface of said sabot, said obturator pusher disc unit having an annular obturating lip extending rearwardly thereof.
Claim 18
Dependent Claim
42 words
Deterrent ammunition according to claim 16, further comprising a cartridge case having a charge of propellant and a primer therein, said sabot, projectile and obturator pusher unit being secured in said case for propulsion therefrom upon firing of said primer and propellant.
Claim 19
Dependent Claim
28 words
Deterrent ammunition according to claim 17, said sabot having a rifling band formed thereon, said case being secured to said sabot adjacent and rearward of said rifling band.
Claim 20
Dependent Claim
52 words
Deterrent ammunition according to claim 1, said nose section having a generally ogive shape and including a relatively thick piston nose section and a relatively flexible annular walL section rearward of said piston nose section and forming a flexible connection between said piston nose section and said polygonal cavity annular bounding wall.
Claim 21
Dependent Claim
87 words
Deterrent ammunition according to claim 19, said cavity having a rear bounding wall zone including a relatively thick base wall having a reduced diameter exterior annular surface connecting along a connecting shoulder with a forward annular wall section of relatively larger diameter and forming a portion of said annular bounding wall for said cavity. said shoulder line bounding and adjoining the intersection zone between said weaker longitudinally extending cavity corners and the inner rear wall surface of said cavity as formed by said relatively thick base wall.
Claim 22
Dependent Claim
34 words
Deterrent ammunition according to claim 20, said intersection zone of each of said cavity corners with said rear wall surface of said cavity being formed by a chamfer longitudinally coextensive with said connecting shoulder.
Claim 23
Dependent Claim
96 words
Deterrent ammunition according to claim 1, said cavity having a rear bounding wall zone including a relatively thick base wall having a reduced diameter exterior annular surface connecting along a connecting shoulder with a forward annular wall section of relatively larger diameter and forming a portion of said annular bounding wall for said cavity, said shoulder line bounding and adjoining the intersection zone between said weaker longitudinally extending cavity corners and the inner wall surface of said cavity as formed by said relatively thick base wall, said sabot extending about said reduced diameter annular exterior surface.
Claim 24
Dependent Claim
34 words
Deterrent ammunition according to claim 22, said intersection zone of each of said polygon corners with said rear wall surface of said cavity being formed by a chamfer longitudinally coextensive with said connecting shoulder.
Claim 25
Dependent Claim
31 words
Deterrent ammunition according to claim 1, said nose section being a separate element from said first housing section and being secured thereto at the forward end of said first housing section.
Claim 26
Dependent Claim
35 words
Deterrent ammunition according to claim 1, said nose section having a cavity formed therein and connecting with said first housing section polygonal cavity to form a composite single cavity containing a flowable dispersable material charge.
Claim 27
Dependent Claim
16 words
Deterrent ammunition according to claim 2, said flowable dispersable material charge comprising finely divided particulate material.
Claim 28
Dependent Claim
15 words
Deterrent ammunition according to claim 2, said sabot being formed of a plurality of segments.
Claim 29
Dependent Claim
49 words
Deterrent ammunition according to claim 27, said sabot having a rear base end with a forward facing undulating surface engageable in rotation-imparting engagement with the soft elastic rear surface of said housing section during forward launching of said projectile by application of forwardly directed force thereon through said sabot.
Claim 30
Dependent Claim
37 words
Deterrent ammunition according to claim 2, an obturator pusher disc unit rearward of said sabot and engageable with the rear surface of said sabot, said obturator pusher disc unit having an annular obturator lip extending rearwardly thereof.
Claim 31
Dependent Claim
39 words
Deterrent ammunition according to claim 29, a cartridge case having a charge of propellant and primer therein, said sabot, projectile and obturator pusher unit being secured in said case for propulsion therefrom upon firing of said primer and propellant.
Claim 32
Dependent Claim
28 words
Deterrent ammunition according to claim 30, said sabot having a rifling band formed thereon, said case being secured to said sabot adjacent and rearward of said rifling band.
Claim 33
Dependent Claim
99 words
Deterent ammunition, comprising, a projectile formed by a rupturable housing 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 a nose section closing said cavity at its forward end, said housing being formed of relatively soft elastic, rupturable material, a discardable low mass sabot engageable in substantially complementary fashion about the annular exterior surface of said housing and along said forward annular wall surface bounding said cavity.
Claim 34
Dependent Claim
99 words
Deterent ammunition, comprising, a projectile formed by a rupturable housing 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 a nose section closing said cavity at its forward end, said housing being formed of relatively soft elastic, rupturable material, a discardable low mass sabot engageable in substantially complementary fashion about the annular exterior surface of said housing and along said forward annular wall surface bounding said cavity.
Claim 35
Dependent Claim
13 words
Deterrent ammunition according to claim 32, said soft elastic rupturable material being rubber.
Claim 36
Dependent Claim
14 words
Deterrent ammunition according to claim 33, said soft elastic rupturable material being silicone rubber.
Claim 37
Dependent Claim
13 words
Deterrent ammuntion according to claim 32, said cavity being square in cross section.
Claim 38
Dependent Claim
52 words
Deterrent ammunition according to claim 32, said nose section having a generally ogive shape and including a relatively thick piston nose section and a relatively flexible annular wall section rearward of said piston nose section and forming a flexible connection between said piston nose section and said housing cavity annular bounding wall.
Claim 39
Dependent Claim
87 words
Deterrent ammunition according to claim 36, said cavity having a rear bounding wall zone including a relatively thick base wall having a reduced diameter exterior annular surface connecting along a connecting shoulder with a forward annular wall section of relatively larger diameter and forming a portion of said annular bounding wall for said cavity, said shoulder line bounding and adjoining the intersection zone between said weaker longitudinally extending thinner zones and the inner rear wall surface of said cavity as formed by said relatively thick base wall.
Claim 40
Dependent Claim
34 words
Deterrent ammunition according to claim 37, said intersection zone of each of said thiner zones with said rear wall surface of said cavity being formed by a chamfer longitudinally coextensive with said connecting shoulder.
Claim 41
Dependent Claim
49 words
Deterrent ammunition according to claim 32, said sabot having a rear base end with a forward facing undulating surface engageable in rotation-imparting engagement with the soft elastic rear surface of said housing section during forward launching of said projectile by application of forwardly directed force thereon through said sabot.
Claim 42
Dependent Claim
17 words
Deterrent ammunition according to claim 39, said forwardly facing undulating surface of said sabot being radially ribbed.
Claim 43
Dependent Claim
15 words
Deterrent ammunition according to claim 40, said sabot being formed of a plurality of segments.
Claim 44
Dependent Claim
14 words
Deterrent ammunition according to claim 41, said sabot having a rifling band formed thereon.
Claim 45
Dependent Claim
15 words
Deterrent ammunition according to claim 39, said sabot being formed of a plurality of segments.
Claim 46
Dependent Claim
114 words
Deterrent ammuntion according to claim 32, said cavity having a rear bounding wall zone including a relatively thick base wall having a reduced diameter exterior annular surface connecting along a connecting shoulder with a forward annular wall section of relatively larger diameter and forming a portion of said annular bounding wall for said cavity, said shoulder line bounding and adjoining the intersection zone between said weaker longitudinally extending thinner zones and the inner rear wall surface of said cavity as formed by said relatively thick base wall, said discardable low mass sabot engageable in substantially complementary fashion about said reduced diameter annular exterior surface and along said forward annular wall surface bounding said cavity.
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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) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |