US3921937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projectile or rocket preferably with unfolded tail unit
Assignee: Dynamit Nobel AG
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Filing: 1973-06-04
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Granted: 1975-11-25
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Expires: 1993-06-04
Abstract
Abstract A projectile, preferably a rocket with an unfoldable tail or rudder fin unit with a plurality of guiding fins movable between a storage position extending tangentially along the projectile to a flight position extending radially of the projectile longitudinal axis. A sliding sleeve is arranged in the projectile for engagement with pivot levers on the guiding fins so as to maintain the guiding fins in the storage position until a predetermined instant in the launching of the projectile, at which time the sliding sleeve engages the pivot levers to unfold the fins and force them into their flight position. The sliding sleeve is maintained in a first arresting position for holding the pivot levers and guide fins in the storage position by means of a connecting disk abutting the rear end of the sleeve. This connecting disk is attached to the projectile in such a manner that ignition of propellant charge means disposed rearwardly of the disk cause a disconnection of the disk with respect to the projectile, with a consequent falling away of the disk after the projectile has left a gun barrel so that a rocket engine disposed forwardly of the disk can operate unimpeded by the disk. The disk is provided with a throttle opening for accommodating transfer of propellant charge gases to ignite the rocket cruising engine and to assist a compression spring in moving the sleeve rearwardly to unfold the guiding fins. Preferred embodiments utilize the disk arrangement for accommodating the propellant charge initial acceleration and the later operation of the cruising engine with or without the further inclusion of the sliding sleeve for controlling foldable guide fins. Other features include a cup spring arrangement for holding a warhead detonator in position between detachably connected parts of the projectile, as well as novel conduit means for transferring the propellant charge gases to an ignition element for the crusing engine.
Inventors
- 👤 Alfred Voss
- 👤 Manfred Strunk
- 👤 Heinz Kroschel
- 👤 Heinz Wilhelm Kreutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:48
CPC Classifications
F; F42; F42B; F42B10/00; F42B10/02; F42B10/14; F42B10/20
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
183 words
A projectile comprising: rudder carrier means extending in the direction of a longitudinal axis of the projectile, at least one guiding fin means attached to said rudder carrier means, each of said guiding fin means being movable about a respective fin pivot axis extending substantially perpendicularly to said longitudinal axis between a first storage position extending tangentially along the rudder carrier means and a second-in-flight position extending outwardly of said rudder carrier means, pivot lever means mounted on each of said fin means eccenTrically with respect to a respective fin pivot axis, and sliding sleeve means carried by said rudder carrier means, said sliding sleeve means being provided with annular groove means having a front lateral surface and a rear lateral surface for accommodating a free end of each pivot lever means, said sliding sleeve means being movable from a fin arresting position with said rear lateral surface engaging said pivot lever means to hold said fin means in said first position to positions with said front lateral surface engaging said pivot lever means to move said fin means to said second position.
Claim 2
Dependent Claim
183 words
A projectile comprising: rudder carrier means extending in the direction of a longitudinal axis of the projectile, at least one guiding fin means attached to said rudder carrier means, each of said guiding fin means being movable about a respective fin pivot axis extending substantially perpendicularly to said longitudinal axis between a first storage position extending tangentially along the rudder carrier means and a second-in-flight position extending outwardly of said rudder carrier means, pivot lever means mounted on each of said fin means eccenTrically with respect to a respective fin pivot axis, and sliding sleeve means carried by said rudder carrier means, said sliding sleeve means being provided with annular groove means having a front lateral surface and a rear lateral surface for accommodating a free end of each pivot lever means, said sliding sleeve means being movable from a fin arresting position with said rear lateral surface engaging said pivot lever means to hold said fin means in said first position to positions with said front lateral surface engaging said pivot lever means to move said fin means to said second position.
Claim 3
Dependent Claim
228 words
A projectile comprising: rudder carrier means extending in the direction of a longitudinal axis of the projectile, at least one guiding fin means attached to said rudder carrier means, each of said guiding fin means being movable about a respective fin pivot axis extending substantially perpendicularly to said longitudinal axis between a first storage position extending tangentially along the rudder carrier means and a second in-flight position extending outwardly of said rudder carrier means, pivot lever means mounted on each of said fin means eccentrically with respect to a respective fin pivot axis, and sliding sleeve means carried by said rudder carrier means and having annular groove means for accommodating a free end of each pivot lever means, and sliding sleeve means being movable from a fin arresting position with said groove means engaging said pivot lever means to hold said fin means in said first position to positions with said groove means engaging said pivot lever means to move said fin means to said second position, whereby retention of said sliding sleeve means in said fin arresting position is accommodated, wherein said sliding sleeve means is held in said fin arresting position by connecting means interposed between said rudder carrier means and said sliding sleeve means, and wherein connection release means are provided for releasing said connecting means at a predetermined instant during launching of the projectile.
Claim 4
Dependent Claim
228 words
A projectile comprising: rudder carrier means extending in the direction of a longitudinal axis of the projectile, at least one guiding fin means attached to said rudder carrier means, each of said guiding fin means being movable about a respective fin pivot axis extending substantially perpendicularly to said longitudinal axis between a first storage position extending tangentially along the rudder carrier means and a second in-flight position extending outwardly of said rudder carrier means, pivot lever means mounted on each of said fin means eccentrically with respect to a respective fin pivot axis, and sliding sleeve means carried by said rudder carrier means and having annular groove means for accommodating a free end of each pivot lever means, and sliding sleeve means being movable from a fin arresting position with said groove means engaging said pivot lever means to hold said fin means in said first position to positions with said groove means engaging said pivot lever means to move said fin means to said second position, whereby retention of said sliding sleeve means in said fin arresting position is accommodated, wherein said sliding sleeve means is held in said fin arresting position by connecting means interposed between said rudder carrier means and said sliding sleeve means, and wherein connection release means are provided for releasing said connecting means at a predetermined instant during launching of the projectile.
Claim 5
Dependent Claim
58 words
A projectile according to claim 2, wherein said sliding sleeve means is held in a forward position by said connecting means, and wherein at least one of spring force means and gas pressure force means are arranged in said rudder carrier means to move said sliding sleeve means in a rearward direction upon release of said connecting means.
Claim 6
Dependent Claim
34 words
A projectile according to claim 3, wherein said sliding sleeve means is mounted inside of said rudder carrier means, and wherein said aannular groove means faces radially outwardly with respect to said longitudinal axis.
Claim 7
Dependent Claim
50 words
A projectile according to claim 3, wherein said connecting means includes a disk detachably connected adjacent the rear end of the rudder carrier means, and wherein said sliding sleeve means includes an annular rearward extension which rests on said disk when said sliding sleeve means is in said first position.
Claim 8
Dependent Claim
40 words
A projectile according to claim 3, wherein said sliding sleeve means is disposed inside of said rudder carrier means and includes at least two spaced-apart external annular flanges for slidably guiding said sliding sleeve means in said rudder carrier means.
Claim 9
Dependent Claim
39 words
A projectile according to claim 5, wherein said sliding sleeve means is disposed inside of said carrier means and includes at least two spaced-apart external annular flanges for slidably guiding said sliding sleeve means in said rudder carrier means.
Claim 10
Dependent Claim
74 words
A projectile according to claim 6, wherein a rearwardly facing annular surface of one of said annular flanges simultaneously serves as a front lateral surface of the groove means, said front lateral surface of the groove means being spaced forwardly from said pivot lever means when said sliding sleeve means is in said first position and being in engagement with said pivot lever means when said sliding sleeve means is in said second position.
Claim 11
Dependent Claim
74 words
A projectile according to claim 7, wherein a rearwardly facing annular surface of one of said annular flanges simultaneously serves as a front lateral surface of the groove means, said front lateral surface of the groove means being spaced forwardly from said pivot lever means when said sliding sleeve means is in said first position and being in engagement with said pivot lever means when said sliding sleeve means is in said second position.
Claim 12
Dependent Claim
19 words
A projectile according to claim 6, wherein said sliding sleeve means is provided with radially extending pressure equalizing apertures.
Claim 13
Dependent Claim
19 words
A projectile according to claim 9, wherein said sliding sleeve means is provided with radially extending pressure equalizing apertures.
Claim 14
Dependent Claim
19 words
A projectile according to claim 6, wherein said sliding sleeve means is provided with axially extending pressure equalizing bores.
Claim 15
Dependent Claim
19 words
A projectile according to claim 11, wherein said sliding sleeve means is provided with axially extending pressure equalizing bores.
Claim 16
Dependent Claim
50 words
A projectile according to claim 6, wherein said rudder carrier means is provided with cutouts for accommodating said pivot lever means, and wherein sealing elements are arranged between the sliding sleeve means and the rudder carrier means for sealing off the sliding sleeve means from the zone of said cutouts.
Claim 17
Dependent Claim
50 words
A projectile according to claim 9, wherein said rudder carrier means is provided with cutouts for accommodating said pivot lever means, and wherein sealing elements are arranged between the sliding sleeve means and the rudder carrier means for sealing off the sliding sleeve means from the zone of said cutouts.
Claim 18
Dependent Claim
43 words
A projectile according to claim 6, wherein compression spring means are arranged in said projectile with a rear end thereof resting at the most forward of said annular flanges with the interposition of an annular disk constructed on one of steel and polytetrafluorethylene.
Claim 19
Dependent Claim
43 words
A projectile according to claim 9, wherein compression spring means are arranged in said projectile with a rear end thereof resting at the most forward of said annuar flanges with the interposition of an annular disk constructed of one of steel and polytetrafluorethylene.
Claim 20
Dependent Claim
142 words
A projectile according to claim 5, wherein a forward end of said disk contacts an interiorly formed shoulder of said rudder carrier means, wherein said disk is held in position against said shoulder by a tubular member disposed rearwardly of the disk, wherein a rear end portion of said tubular member is fixedly joined to said rudder carrier means and a forward end portion of said tubular member is in abutting engagement with a rearwardly facing annular shoulder of said disk while leaving an annular cavity between a forward zone of the tubular member and the rudder carrier means, and wherein said cavity is formed with an inside cross section which is radially outwardly of the cross section of said disk for accommodating portions of said tubular member upon release of said disk at said predetermined instant during launching of the projectile.
Claim 21
Dependent Claim
142 words
A projectile according to claim 9, wherein a forward end of said disk contacts an interiorly formed shoulder of said rudder carrier means, wherein said disk is held in position against said shoulder by a tubular member disposed rearwardly of the disk, wherein a rear end portion of said tubular member is fixedly joined to said rudder carrier means and a forward end portion of said tubular member is in abutting engagement with a rearwardly facing annular shoulder of said disk while leaving an annular cavity between a forward zone of the tubular member and the rudder carrier means, and wherein said cavity is formed with an inside cross section which is radially outwardly of the cross section of said disk for accommodating portions of said tubular member upon release of said disk at said predetermined instant during launching of the projectile.
Claim 22
Dependent Claim
63 words
A projectile according to claim 18, wherein the rudder carrier means has a continuous annular edge portion on the inside adjacent the forward end portion of the tubular member and the rearward end of thE disk, and wherein an outer surface portion of said tubular member is pressed against said annular edge portion in the assembled condition of said disk and tubular member.
Claim 23
Dependent Claim
72 words
A projectile according to claim 20, wherein said annular edge portion is disposed between and immediately adjacent said annular cavity and said rearwardly facing annular shoulder of said disk in the assembled condition of said disk and tubular member such that the portion of the tubular member which is forward of said annular edge portion may be pressed into said annular cavity to permit release of said disk in the rearward direction.
Claim 24
Dependent Claim
30 words
A projectile according to claim 18, wherein a ring-shaped sealing strip is interposed between said interiorly formed shoulder of said rudder carrier means and said forward end of said disk.
Claim 25
Dependent Claim
30 words
A projectile according to claim 21, wherein a ring-shaped sealing strip is interposed between said interiorly formed shoulder of said rudder carrier means and said forward end of said disk.
Claim 26
Dependent Claim
22 words
A projectile according to claim 18, wherein said rear end portion of said tubular member is glued to said rudder carrier means.
Claim 27
Dependent Claim
22 words
A projectile according to claim 23, wherein said rear end portion of said tubular member is glued to said rudder carrier means.
Claim 28
Dependent Claim
40 words
A projectile according to claim 18, wherein said rear end portion of said tubular member is provided with an annular bead portion which is fixedly engaged in a corresponding annular groove provided on the inside of the rudder carrier means.
Claim 29
Dependent Claim
40 words
A projectile according to claim 25, wherein said rear end portion of said tubular member is provided with an annular bead portion which is fixedly engaged in a corresponding annular groove provided on the inside of the rudder carrier means.
Claim 30
Dependent Claim
42 words
A projectile according to claim 1, further comprising a piezoelectric impact detonator, wherein said projectile is formed of detachably connected front and rear sections, and wherein said impact detonator is held in position between said front and rear sections by resilient means.
Claim 31
Dependent Claim
26 words
A projectile according to claim 28, wherein said front and rear sections are threadedly connected, and wherein said resilient means includes at least one cup spring.
Claim 32
Dependent Claim
42 words
A projectile according to claim 5, further comprising a piezoelectric impact detonator, wherein said projectile is formed of detachably connected front and rear sections, and wherein said impact detonator is held in position between said front and rear sections by resilient means.
Claim 33
Dependent Claim
42 words
A projectile according to claim 8, further comprising a piezoelectric impact detonator, wherein said projectile is formed of detachably connected front and rear sections, and wherein said impact detonator is held in position between said front and rear sections by resilient means.
Claim 34
Dependent Claim
18 words
A projectile according to claim 31, wherein said impact detonator is arranged forwardly of said sliding sleeve means.
Claim 35
Dependent Claim
28 words
A projectile according to claim 2, wherein said connecting means include shear pin means arranged in radially extending bores of the rudder carrier means and sliding sleeve means.
Claim 36
Dependent Claim
48 words
A projectile according to claim 5, wherein said disk is threadedly connected to the rear of the rudder carrier means and includes an annular predetermined breaking zone where the disk is severed under the effect of powder gases from a propellant firing charge disposed rearwardly of the disk.
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) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |