Patent US3970004A successfully refreshed from Google Patents.
US3970004A
Expired / Lapsed
US
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Spinning projectile
Assignee: Rheinmetall Air Defence AG
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Filing: 1974-11-25
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Granted: 1976-07-20
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Expires: 1994-11-25
Abstract
Abstract A spinning projectile with a projectile body and a hollow charge component rotatably mounted in the projectile body and axially displaceable by the propellant gases, further including means in order to hold the hollow charge component in its displaced position. According to the invention the aforementioned means are constructed as locking elements which maintain the hollow charge component in the displaced position at the projectile body even after there has been an abatement of the pressure of the propellant charge.
Inventors
- 👤 Xaver Suter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:23
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/04; F42B12/10; F42B12/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
62 words
A spinning projectile comprising a projectile body, a hollow charge component rotatably mounted in the projectile body and axially displaceable by propellant gases, means for maintaining the hollow charge component in the displaced position, said maintaining means comprising locking elements which hold the hollow charge component in the displaced position at the projectile body even after abatement of the propellant charge pressure.
Claim 2
Dependent Claim
62 words
A spinning projectile comprising a projectile body, a hollow charge component rotatably mounted in the projectile body and axially displaceable by propellant gases, means for maintaining the hollow charge component in the displaced position, said maintaining means comprising locking elements which hold the hollow charge component in the displaced position at the projectile body even after abatement of the propellant charge pressure.
Claim 3
Dependent Claim
45 words
The spinning projectile as defined in claim 1, wherein the locking elements comprise a spring ring displaceable with the hollow charge component and an annular groove arranged in the projectile body and in the axial direction of movement thereof in front of the spring ring.
Claim 4
Dependent Claim
90 words
The spinning projectile as defined in claim 2, further including a front roller bearing and a rear roller bearing for radially supporting the hollow charge component in the projectile body, the front roller bearing having an inner race connected to be axially non-displaceable with the hollow charge component, a piston movable by the action of the propellant gases, the front roller bearing having an outer race bearing towards the rear upon said spring ring and being in driving connection with said piston movable by the action of the propellant gases.
Claim 5
Dependent Claim
40 words
The spinning projectile as defined in claim 3, further including a package of springs arranged between the outer race of the front roller bearing and a stop fixed at the projectile body and located in front of said outer race.
Claim 6
Dependent Claim
40 words
The spinning projectile as defined in claim 3, further including a sleeve provided for the projectile body, said sleeve being tapered in relation to the diameter of the projectile, and the front roller bearing being guided in said tapered sleeve.
Claim 7
Dependent Claim
63 words
The spinning projectile as defined in claim 3, including a forwardly extending tapered cylindrical projection provided for the piston, a sleeve having an inner wall and connected with the hollow charge component, and wherein the rear roller bearing is arranged between the forwardly extending tapered cylindrical projection of the piston and the inner wall of said sleeve connected with the hollow charge component.
Claim 8
Dependent Claim
75 words
The spinning projectile as defined in claim 3, further including a sleeve provided for the projectile body, said sleeve being tapered with respect to the diameter of the projectile, the front roller bearing being tuided in said sleeve, said sleeve of the projectile body being sealed towards the rear by a base piece, said sleeve and said base piece together with said piston forming a combustion compartment for a spinning-propellant charge of a rocket projectile.
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) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |