US3580174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projectile with hollow explosive charge
Assignee: Rheinmetall Air Defence AG
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Filing: 1969-02-18
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Granted: 1971-05-25
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Expires: 1989-02-18
Abstract
Abstract A projectile having a body with an explosive charge having a cavity. A lagging is located in the cavity and a passage in the charge extends centrally rearwardly from the cavity. A primary detonator for the charge is before firing located in a position of rest and after firing is located in an ignition position at the front end of the passage. A secondary detonator is situated in its position of rest in the cavity and a rod extends through the passage having the secondary detonator fastened to the forward end thereof and which on firing is adapted to slide to the rear in the passage.
Inventors
- 👤 Robert Apotheloz
- 👤 Hans-Ulrich Bigler
- 👤 Rene Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:10
CPC Classifications
F; F42; F42C; F42C15/00; F42C15/18; F42C15/184; F42B; F42B10/00; F42B10/02; F42B10/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
120 words
A projectile comprising a body having a bore, an explosive charge in said body having a cavity, a lagging located in said cavity, a passage in said charge extending centrally rearwardly from said cavity, a sleeve slidable in said bore, a primary detonator fixed in said sleeve for said charge which before expulsion of the projectile is located in a position of rest and after expulsion of the projectile is located in an ignition position, a secondary detonator situated in its position of rest in said cavity, a rod extending through said passage having said secondary detonator fastened to the forward end thereof and which on expulsion of the projectile is adapted to slide to the rear in said passage.
Claim 2
Dependent Claim
120 words
A projectile comprising a body having a bore, an explosive charge in said body having a cavity, a lagging located in said cavity, a passage in said charge extending centrally rearwardly from said cavity, a sleeve slidable in said bore, a primary detonator fixed in said sleeve for said charge which before expulsion of the projectile is located in a position of rest and after expulsion of the projectile is located in an ignition position, a secondary detonator situated in its position of rest in said cavity, a rod extending through said passage having said secondary detonator fastened to the forward end thereof and which on expulsion of the projectile is adapted to slide to the rear in said passage.
Claim 3
Dependent Claim
35 words
A projectile according to claim 1 wherein a guide device is mounted on said rod which upon expulsion of the projectile is moved by air resistance out of a position of rest into operative position.
Claim 4
Dependent Claim
27 words
A projectile according to claim 2, wherein said guide device comprises a stabilizer directed transversely to the axis of the projectile on which dynamic air pressure acts.
Claim 5
Dependent Claim
25 words
A projectile according to claim 1 wherein the thickness of said lagging is such that the explosive charge cannot be primed by said secondary detonator.
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |