US4895076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sub-caliber trainer round
Assignee: United States Department of the Army
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Filing: 1989-03-08
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Granted: 1990-01-23
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Expires: 2009-03-08
Abstract
Abstract A sub-caliber trainer round that includes a projectile with weighted meansor weighting the projectile to the desired weight and the projectile having a rear piston like portion for sliding in a cylindrical bore and having a front portion as a marking means for marking the impact position of the projectile relative to a target. The projectile is designed to be mounted in a cylindrical bore as a shotgun shell with a primer and powder for launching the projectile in much the same manner as a shotgun shell.
Inventors
- 👤 Lonnie L. Looger, deceased
- 👤 John W. Byrd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:14
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/40; F42B8/00; F42B8/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
95 words
A projectile comprising a body section that is generally cylindrical and has a rear section and a forward section that are innerconnected by rib means, said forward section having a forwardly opening cavity therein and securing means at the base of said cavity, said cavity having pelletized weighted means bonded therein and to said securing means, and marker means secured at the forward end of said cavity, said projectile being constructed for weight distribution such that the projectile has a center of gravity that is in front of a center of pressure of the projectile.
Claim 2
Dependent Claim
95 words
A projectile comprising a body section that is generally cylindrical and has a rear section and a forward section that are innerconnected by rib means, said forward section having a forwardly opening cavity therein and securing means at the base of said cavity, said cavity having pelletized weighted means bonded therein and to said securing means, and marker means secured at the forward end of said cavity, said projectile being constructed for weight distribution such that the projectile has a center of gravity that is in front of a center of pressure of the projectile.
Claim 3
Dependent Claim
35 words
A projectile as set forth in claim 1, wherein said pelletized weighted means includes metal pellets that are bonded together with an epoxy to secure the pellets in said cavity relative to said securing means.
Claim 4
Dependent Claim
24 words
A projectile as set forth in claim 2, wherein said marking means is a spherical ball member that contains a paint marking substance therein.
Claim 5
Dependent Claim
21 words
A projectile as set forth in claim 3, wherein said rear section of said body is cup-shaped to form a piston.
Claim 6
Dependent Claim
227 words
A trainer round comprising a projectile having a body section that is generally cylindrical and has a rear section and a forward section that are innerconnected by rib means, said forward section having a forwardly opening cavity therein and securing means at the base of said cavity, said cavity having weighted means bonded therein and to said securing means, marker means secured at the forward end of said cavity, said projectile being constructed for weight distribution such that the projectile has a center of gravity that is in front of a center of pressure of the projectile, said weighted means including metal pellets that are bonded together with an epoxy to secure the pellets in said cavity relative to said securing means, said marking means being a spherical ball member that contains a paint marking substance therein, said rear section of said body being cup-shaped to form a piston, said projectile being mounted in a shell type housing that includes a cylindrical device that is open at one end and closed at the other end to define a chamber between the closed end of said shell and said piston, said chamber between said closed end and said piston having powder therein, and said closed end of said shell having a primer charge for igniting said powder when struck by appropriate means for setting off said primer charge.
Claim 7
Dependent Claim
227 words
A trainer round comprising a projectile having a body section that is generally cylindrical and has a rear section and a forward section that are innerconnected by rib means, said forward section having a forwardly opening cavity therein and securing means at the base of said cavity, said cavity having weighted means bonded therein and to said securing means, marker means secured at the forward end of said cavity, said projectile being constructed for weight distribution such that the projectile has a center of gravity that is in front of a center of pressure of the projectile, said weighted means including metal pellets that are bonded together with an epoxy to secure the pellets in said cavity relative to said securing means, said marking means being a spherical ball member that contains a paint marking substance therein, said rear section of said body being cup-shaped to form a piston, said projectile being mounted in a shell type housing that includes a cylindrical device that is open at one end and closed at the other end to define a chamber between the closed end of said shell and said piston, said chamber between said closed end and said piston having powder therein, and said closed end of said shell having a primer charge for igniting said powder when struck by appropriate means for setting off said primer charge.
References Cited (Backward Citations)
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Cited
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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) | 1993-01-22 | 1993-07-24 | 1994-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-22 | 1997-07-24 | 1998-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-22 | 2001-07-24 | 2002-01-23 | $7700.00 | Window Closed / Lapsed |