US3662686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rod and sabot assembly
Assignee: United States Department of the Army
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Filing: 1970-09-18
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Granted: 1972-05-16
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Expires: 1990-09-18
Abstract
Abstract The invention relates to an improved rod and sabot assembly comprising a pusher type rod sabot or carrier which is full caliber constructed and functions in the normal manner to launch sub-caliber rod projectile penetrators from conventional smooth bore gun tubes. The inventive improvement obviates the flight perturbation of such penetrators attending the use of conventional longitudinally halved sabots which bear on the stabilizer cone by a construction which extends the sabot halves to bear on a rearwardly disposed full caliber pusher-spacer plate.
Inventors
- 👤 Luigi F Baldini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:03
CPC Classifications
F; F42; F42B; F42B14/00; F42B14/06; F42B14/064; Y; Y10; Y10S; Y10S102/00; Y10S102/703
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
145 words
In a rod and sabot assembly adapted for launching from a smooth bore gun tube comprising a sub-caliber rod, drag stabilization means attached to said rod rearwardly thereof, a full caliber, longitudinally halved sabot substantially encasing said rod and attached drag stabilization means and arranged and constructed for in-flight separation therefrom, and a full caliber, obturator at the rearward end of said assembly, the improvement for obviating flight perturbation of said rod comprising, a pusher-spacer plate between said assembly and said obturator, said pusher-spacer plate comprising a full caliber portion abutting said obturator, a sub-caliber portion abutting said rod and attached drag stabilization means, and a shoulder therebetween, and wherein said sabot extends rearwardly encasing the sub-caliber portion of said pusher-spacer plate and abutting said shoulder, the arrangement and construction being such that the sabot halves bear on said pusher-spacer plate during said in-flight separation.
Claim 2
Dependent Claim
145 words
In a rod and sabot assembly adapted for launching from a smooth bore gun tube comprising a sub-caliber rod, drag stabilization means attached to said rod rearwardly thereof, a full caliber, longitudinally halved sabot substantially encasing said rod and attached drag stabilization means and arranged and constructed for in-flight separation therefrom, and a full caliber, obturator at the rearward end of said assembly, the improvement for obviating flight perturbation of said rod comprising, a pusher-spacer plate between said assembly and said obturator, said pusher-spacer plate comprising a full caliber portion abutting said obturator, a sub-caliber portion abutting said rod and attached drag stabilization means, and a shoulder therebetween, and wherein said sabot extends rearwardly encasing the sub-caliber portion of said pusher-spacer plate and abutting said shoulder, the arrangement and construction being such that the sabot halves bear on said pusher-spacer plate during said in-flight separation.
Claim 3
Dependent Claim
17 words
An assembly according to claim 1 wherein said rod has a length-to-diameter ratio in excess of 5.
Claim 4
Dependent Claim
14 words
An assembly according to claim 1 wherein said rod extends forwardly beyond said sabot.
Claim 5
Dependent Claim
20 words
An assembly according to claim 1 wherein said drag stabilization means comprises a cone-shaped structure with its base rearwardly disposed.
Claim 6
Dependent Claim
65 words
An assembly according to claim 4 including a threaded sleeve brazed to the rearward end of said rod, said cone-shaped structure being provided with a rearwardly opening recess adapted to receive said sleeve in threaded engagement and a centrally positioned passageway joining the floor of said recess to the apex of said cone-shaped structure, said passageway being adapted for the slidable insertion of said rod.
Claim 7
Dependent Claim
28 words
An assembly according to claim 5 wherein said sleeve is attached to said rod by a fillet joint and said excess is adapted to accommodate said fillet joint.
Claim 8
Dependent Claim
12 words
An assembly according to claim 4 wherein said cone-shaped structure comprises aluminum.
Claim 9
Dependent Claim
32 words
An assembly according to claim 1 comprising a pusher plate between said pusher-spacer plate and said obturator, said pusher plate comprising harder material made preferably from an aluminum alloy than said obturator.
Claim 10
Dependent Claim
17 words
An assembly according to claim 8 wherein said pusher plate comprises steel and said obturator comprises neoprene.
Claim 11
Dependent Claim
27 words
An assembly according to claim 1 wherein said pusher-spacer plate is of multi-component construction each of said full caliber and sub-caliber portion comprising at least one plate.
Claim 12
Dependent Claim
15 words
An assembly according to claim 10 wherein said full caliber and sub-caliber plates comprise steel.
Claim 13
Dependent Claim
27 words
An assembly according to claim 11 including a shock absorber plate between said full caliber and sub-caliber portions and having the same caliber as said sub-caliber portions.
Claim 14
Dependent Claim
13 words
An assembly according to claim 12 wherein said shock absorber plate comprises rubber.
Claim 15
Dependent Claim
27 words
An assembly according to claim 11 including a shock absorber plate between said sub-caliber portion and said assembly and having the same caliber as said sub-caliber portion.
Claim 16
Dependent Claim
13 words
An assembly according to claim 14 wherein said shock absorber plate comprises rubber.
Claim 17
Dependent Claim
15 words
An assembly according to claim 1 wherein said sabot comprises a phenolic impact molding material.
Claim 18
Dependent Claim
17 words
An assembly according to claim 16 wherein said phenolic impact molding material includes a cotton fabric filler.
Claim 19
Dependent Claim
81 words
An assembly according to claim 1 wherein said pusher-spacer plate is almost completely longitudinally halved by a full diameter slit passing through the axis of said plate and extending from the face of said sub-caliber portion abutting said rod and attached drag stabilization means to a plane passing through said full caliber portion parallel to the face thereof abutting said obturator, the arrangement and construction of said pusher-spacer plate being such as to permit in-flight separation of the longitudinal halves thereof.
Claim 20
Dependent Claim
12 words
An assembly according to claim 18 wherein said pusher-spacer plate comprises aluminum.
Claim 21
Dependent Claim
18 words
An assembly according to claim 19 including a steel pusher plate between said pusher-spacer plate and said rod.
References Cited (Backward Citations)
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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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |