US3640225A - Fuze apparatus - Google Patents
Fuze apparatus Download PDFInfo
- Publication number
- US3640225A US3640225A US835186A US3640225DA US3640225A US 3640225 A US3640225 A US 3640225A US 835186 A US835186 A US 835186A US 3640225D A US3640225D A US 3640225DA US 3640225 A US3640225 A US 3640225A
- Authority
- US
- United States
- Prior art keywords
- chamber
- spin
- fluid
- bubble
- detonator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/28—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids
- F42C15/285—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids stored within the fuze housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/34—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
- F42C9/02—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means
- F42C9/06—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by flow of fluent material, e.g. shot, fluids
Definitions
- ABSTRACT A centrifugally displaced fluid barrier for a spin-operated fuze arming delay. Safing and delay arming is provided by a relatively high density fluid positioned along the spin axis of a munition to block the output of a detonator along the spin axis. The fluid completely fills a chamber with the exception of a relatively small volume air bubble.
- the air bubble Under sustained spin environment, the air bubble is displaced by centrifugal forces within the fluid into a position along the axis of the munition, allowing the detonator output to pass through the air chamber.
- Various configurations of the chamber to provide arming delay are contemplated.
- the present invention pertains to percussive fuzes having safety means rendering the fume inactive for handling purposes and fuzes which are centrifugally armed in response to rotation of the projectile.
- centrifugal arming is well known in the prior art. Most centrifugal arming arrangements, however, comprise mechanical locks and weights. Fluid has been utilized in some cases for the purpose of delaying the operation of the fuze.
- U.S. Pat. No. 3,425,354 issued Feb. 4, 1969 and assigned to the assignee of the present invention, discloses a centrifugally armed fuze wherein fluid is used as a positive force in the arming sequence.
- a detonator positioned within a chamber has a normal position toward the periphery of the chamber.
- a buoyant slider member Upon spin, a buoyant slider member is displaced by the centrifugal force of the fluid to the center of the chamber in line with the spin axis of the munition where it is in position to be actuated by a firing pin and in turn initiate a pyrotechnic chain.
- the present invention provides a centrifugally actuated fluid barrier for spin-actuated, delay arming fuzes.
- the fluid barrier is positioned across the spin axis to block a detonator output along the spin axis.
- the barrier is made up of a preferably circular cross-sectional chamber positioned perpendicular to the spin axis.
- the chamber is filled with a relatively high-density fluid containing a bubble.
- the chamber design is such that the bubble stays around the periphery of the chamber and will not locate itself along the spin axis except under sustained spin.
- Delay is achieved by selecting a viscous fluid through which the bubble will move at a controlled rate commensurate with chamber diameter, spin rate, and delay requirements. The delay may therefore be adapted to suit almost any spin to arm fuze application.
- Premature initiation of the detonator will cause the detonator output to be blocked by the fluid barrier, thus protecting a lead explosive.
- the central portion of the chamber located along the spin axis is restricted in dimensions to prevent the bubble from entering this region accidentally during handling.
- FIG. 1 is a cross-sectional view of a typical embodiment of the invention.
- FIG. 2 is a cross-sectional view of the embodiment of FIG. 1 in combination with a percussive fuze.
- a radially symmetrical chamber generally designated 1 is filled with a high-density fluid 2.
- the chamber 1 is completely filled with the exception of a small void 3 taking the form of a bubble.
- the central portion of the chamber is separated from the periphery by a restriction 4.
- the bubble 3 is therefore prevented from crossing through the center section due to this restriction.
- the centrifugal forces in the fluid displace the bubble 3 toward the center, causing it to deform from its natural spherical shape and pass through the restriction 4.
- the bubble 3 will never enter the central region of the chamber 1.
- the chamber 1 is shown positioned in a munition comprising a nose 6 crimped onto a base portion 7 and having a plastic probe 8 inserted in the forward portion.
- a firing pin is located in a cavity directly aft of the probe 8.
- the firing pin 9 is separated from a detonator 10, also located along the axis of the munition, by a collar 11.
- the detonator 10 is positioned to fire toward the rear of the projectile along the axis into a lead cup 12.
- a fluid barrier mechanism as represented in FIG. 1. The port between the detonator output and the lead cup 12 is blocked by the fluid contained within the chamber 1.
- the many variations possible on the configuration of the chamber will be realized by those skilled in the art.
- the considerations for the design of the chamber are that the bubble never pass through the center of the chamber under normal handling and that the barrier be of sufficient thickness to block the detonator output should it be initiated before arming is achieved.
- the thickness of thechamber is adjusted to require deformation of the bubble from its normal spherical shape in an armed" position. Due to the tendency of the bubble to remain spherical, a continuous force from all sides must be maintained to hold the bubble in its armed position.
- a centrifugally displaced fluid barrier for positioning on a spin axis of a spin munition, and between a lead explosive and a detonator positioned to initiate said lead explosive along the spin axis, comprising:
- a hermetically sealed housing defining a chamber, said chamber being completely filled with a relatively highdensity fluid except for a buoyant bubble contained within and defined by said fluid, said housing having a restriction therein which prevents said bubble from being positioned along said spin axis unless said munition experiences sustained spin.
- a fluid barrier safing and arming mechanism for separating an axially positioned detonator and lead cup in a spin operated fuze comprising a hermetically sealed housing defining a chamber, said chamber being completely filled with a viscous fluid except for an air bubble contained within and defined by said fluid, said housing having a annular restricted thickness portion requiring deformation of said air bubble to occupy a position along the axis of said fuze, whereby said air bubble remains away from the axis of the fuze in all orientations except under a sustained spin environment thereby allowing the detonator to fire through the air bubble to initiate the lead cup.
- a centrifugally displaced fluid barrier for positioning on a spin axis of a spin munition, and between a lead explosive and a detonator positioned to initiate said lead explosive along the spin axis, comprising:
- a radially symmetrical hermetically sealed housing defining a first chamber and a second chamber, said chambers being positioned coaxially with said spin axis between said detonator and said lead explosive, said second chamber being further from said spin axis than said first chamber and communicating with said first, chamber through a restricted portion, said chambers being filled with a relatively high-density fluid free to flow therebetween, said fluid containing and defining a bubble, said bubble being normally within said second chamber and unable to pass through said restricted portion into said first chamber until said munition fuze experiences sustained spin whereupon said bubble becomes positioned along said spin axis.
Abstract
A centrifugally displaced fluid barrier for a spin-operated fuze arming delay. Safing and delay arming is provided by a relatively high density fluid positioned along the spin axis of a munition to block the output of a detonator along the spin axis. The fluid completely fills a chamber with the exception of a relatively small volume air bubble. Under sustained spin environment, the air bubble is displaced by centrifugal forces within the fluid into a position along the axis of the munition, allowing the detonator output to pass through the air chamber. Various configurations of the chamber to provide arming delay are contemplated.
Description
United States atent Carlson et al.
[ Feb. 8, 1972 both of Minneapolis, Minn.
[73] Assignee: Honeywell Inc., Minneapolis, Minn.
[22] Filed: June 20, 1969 [21] Appl. No.: 835,186
FOREIGN PATENTS OR APPLICATIONS 17,795 1905 Great Britain l02/80 Primary Examiner-Samuel W. Engle Attorney-Charles J. Ungemach, Ronald T. Reiling and Albin Medved [57] ABSTRACT A centrifugally displaced fluid barrier for a spin-operated fuze arming delay. Safing and delay arming is provided by a relatively high density fluid positioned along the spin axis of a munition to block the output of a detonator along the spin axis. The fluid completely fills a chamber with the exception of a relatively small volume air bubble. Under sustained spin environment, the air bubble is displaced by centrifugal forces within the fluid into a position along the axis of the munition, allowing the detonator output to pass through the air chamber. Various configurations of the chamber to provide arming delay are contemplated.
3 Claims, 2 Drawing Figures Pmmanrw 8H7? 3.640.225
INVENTORS DONOVAN R. CARLSON WILLIAM O. MARUSKA ATTORNEY ruzr: APPARATUS BACKGROUND OF THE INVENTION I. Field of the Invention The present invention pertains to percussive fuzes having safety means rendering the fume inactive for handling purposes and fuzes which are centrifugally armed in response to rotation of the projectile.
2. Description of the Prior Art Centrifugal arming is well known in the prior art. Most centrifugal arming arrangements, however, comprise mechanical locks and weights. Fluid has been utilized in some cases for the purpose of delaying the operation of the fuze.
U.S. Pat. No. 3,425,354, issued Feb. 4, 1969 and assigned to the assignee of the present invention, discloses a centrifugally armed fuze wherein fluid is used as a positive force in the arming sequence. A detonator positioned within a chamber has a normal position toward the periphery of the chamber. Upon spin, a buoyant slider member is displaced by the centrifugal force of the fluid to the center of the chamber in line with the spin axis of the munition where it is in position to be actuated by a firing pin and in turn initiate a pyrotechnic chain.
It is an object of the present invention to provide a simple spin-operated arming mechanism utilizing no moving parts.
SUMMARY OF THE INVENTION The present invention provides a centrifugally actuated fluid barrier for spin-actuated, delay arming fuzes. The fluid barrier is positioned across the spin axis to block a detonator output along the spin axis. The barrier is made up of a preferably circular cross-sectional chamber positioned perpendicular to the spin axis. The chamber is filled with a relatively high-density fluid containing a bubble. The chamber design is such that the bubble stays around the periphery of the chamber and will not locate itself along the spin axis except under sustained spin.
Under sustained spin, centrifugal force tends to push the fluid radially outward from the spin axis which centers the bubble along the spin axis. The detonator, having anoutput along the spin axis, can then initiate a lead cup or other explosive through the gap. Delay is achieved by selecting a viscous fluid through which the bubble will move at a controlled rate commensurate with chamber diameter, spin rate, and delay requirements. The delay may therefore be adapted to suit almost any spin to arm fuze application.
Premature initiation of the detonator will cause the detonator output to be blocked by the fluid barrier, thus protecting a lead explosive. The central portion of the chamber located along the spin axis is restricted in dimensions to prevent the bubble from entering this region accidentally during handling.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a typical embodiment of the invention.
FIG. 2 is a cross-sectional view of the embodiment of FIG. 1 in combination with a percussive fuze.
DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. I, a radially symmetrical chamber generally designated 1 is filled with a high-density fluid 2. The chamber 1 is completely filled with the exception of a small void 3 taking the form of a bubble. The central portion of the chamber is separated from the periphery by a restriction 4. The bubble 3 is therefore prevented from crossing through the center section due to this restriction. Upon spinning this barrier about the axis of symmetry, however, the centrifugal forces in the fluid displace the bubble 3 toward the center, causing it to deform from its natural spherical shape and pass through the restriction 4. In the absence of sustained spin, the bubble 3 will never enter the central region of the chamber 1.
Referring to FIG. 2, the chamber 1 is shown positioned in a munition comprising a nose 6 crimped onto a base portion 7 and having a plastic probe 8 inserted in the forward portion. A firing pin is located in a cavity directly aft of the probe 8. The firing pin 9 is separated from a detonator 10, also located along the axis of the munition, by a collar 11. The detonator 10 is positioned to fire toward the rear of the projectile along the axis into a lead cup 12. Between the detonator 10 and the lead cup 12 is a fluid barrier mechanism as represented in FIG. 1. The port between the detonator output and the lead cup 12 is blocked by the fluid contained within the chamber 1.
During launch of the embodiment shown in FIG. 2, all components are stationary. After the specified delay time in a spin environment, the air (or other appropriate gas) bubble is forced through the restriction and aligns with the explosive train along the munition axis between the detonator l0 and the lead cup 12. Upon impact, the plastic probe 8 is extruded through the hole in the ogive, shearing off the shoulder 11 on the firing pin 9. The firing pin is thus driven into the stab-initiating detonator 10. The detonator output initiates the lead cup through the air bubble and the frangible walls of the chamber.
The many variations possible on the configuration of the chamber will be realized by those skilled in the art. The considerations for the design of the chamber are that the bubble never pass through the center of the chamber under normal handling and that the barrier be of sufficient thickness to block the detonator output should it be initiated before arming is achieved. The thickness of thechamber is adjusted to require deformation of the bubble from its normal spherical shape in an armed" position. Due to the tendency of the bubble to remain spherical, a continuous force from all sides must be maintained to hold the bubble in its armed position.
Wherein I claim:
1. A centrifugally displaced fluid barrier for positioning on a spin axis of a spin munition, and between a lead explosive and a detonator positioned to initiate said lead explosive along the spin axis, comprising:
a hermetically sealed housing defining a chamber, said chamber being completely filled with a relatively highdensity fluid except for a buoyant bubble contained within and defined by said fluid, said housing having a restriction therein which prevents said bubble from being positioned along said spin axis unless said munition experiences sustained spin.
2. A fluid barrier safing and arming mechanism for separating an axially positioned detonator and lead cup in a spin operated fuze, comprising a hermetically sealed housing defining a chamber, said chamber being completely filled with a viscous fluid except for an air bubble contained within and defined by said fluid, said housing having a annular restricted thickness portion requiring deformation of said air bubble to occupy a position along the axis of said fuze, whereby said air bubble remains away from the axis of the fuze in all orientations except under a sustained spin environment thereby allowing the detonator to fire through the air bubble to initiate the lead cup.
3. A centrifugally displaced fluid barrier for positioning on a spin axis of a spin munition, and between a lead explosive and a detonator positioned to initiate said lead explosive along the spin axis, comprising:
a radially symmetrical hermetically sealed housing defining a first chamber and a second chamber, said chambers being positioned coaxially with said spin axis between said detonator and said lead explosive, said second chamber being further from said spin axis than said first chamber and communicating with said first, chamber through a restricted portion, said chambers being filled with a relatively high-density fluid free to flow therebetween, said fluid containing and defining a bubble, said bubble being normally within said second chamber and unable to pass through said restricted portion into said first chamber until said munition fuze experiences sustained spin whereupon said bubble becomes positioned along said spin axis.
Claims (3)
1. A centrifugally displaced fluid barrier for positioning on a spin axis of a spin munition, and between a lead explosive and a detonator positioned to initiate said lead explosive along the spin axis, comprising: a hermetically sealed housing defining a chamber, said chamber being completely filled with a relatively high-density fluid except for a buoyant bubble contained within and defined by said fluid, said housing having a restriction therein which prevents said bubble from being positioned along said spin axis unless said munition experiences sustained spin.
2. A fluid barrier safing and arming mechanism for separating an axially positioned detonator and lead cup in a spin operated fuze, comprising a hermetically sealed housing defining a chamber, said chamber being completely filled with a viscous fluid except for an air bubble contained within and defined by said fluid, said housing having a annular restricted thickness portion requiring deformation of said air bubble to occUpy a position along the axis of said fuze, whereby said air bubble remains away from the axis of the fuze in all orientations except under a sustained spin environment thereby allowing the detonator to fire through the air bubble to initiate the lead cup.
3. A centrifugally displaced fluid barrier for positioning on a spin axis of a spin munition, and between a lead explosive and a detonator positioned to initiate said lead explosive along the spin axis, comprising: a radially symmetrical hermetically sealed housing defining a first chamber and a second chamber, said chambers being positioned coaxially with said spin axis between said detonator and said lead explosive, said second chamber being further from said spin axis than said first chamber and communicating with said first chamber through a restricted portion, said chambers being filled with a relatively high-density fluid free to flow therebetween, said fluid containing and defining a bubble, said bubble being normally within said second chamber and unable to pass through said restricted portion into said first chamber until said munition fuze experiences sustained spin whereupon said bubble becomes positioned along said spin axis.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83518669A | 1969-06-20 | 1969-06-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3640225A true US3640225A (en) | 1972-02-08 |
Family
ID=25268852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US835186A Expired - Lifetime US3640225A (en) | 1969-06-20 | 1969-06-20 | Fuze apparatus |
Country Status (9)
Country | Link |
---|---|
US (1) | US3640225A (en) |
BE (1) | BE752110A (en) |
CA (1) | CA950265A (en) |
CH (1) | CH508865A (en) |
DE (1) | DE2028447A1 (en) |
FR (1) | FR2046952B1 (en) |
GB (1) | GB1265767A (en) |
NL (1) | NL7008801A (en) |
SE (1) | SE353957B (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3962973A (en) * | 1974-10-29 | 1976-06-15 | Motorola, Inc. | Time delay control mechanism |
US5088413A (en) * | 1990-09-24 | 1992-02-18 | Schlumberger Technology Corporation | Method and apparatus for safe transport handling arming and firing of perforating guns using a bubble activated detonator |
US6148263A (en) * | 1998-10-27 | 2000-11-14 | Schlumberger Technology Corporation | Activation of well tools |
US6283227B1 (en) | 1998-10-27 | 2001-09-04 | Schlumberger Technology Corporation | Downhole activation system that assigns and retrieves identifiers |
US6385031B1 (en) | 1998-09-24 | 2002-05-07 | Schlumberger Technology Corporation | Switches for use in tools |
US20040074411A1 (en) * | 2001-03-12 | 2004-04-22 | Detlef Haeselich | Igniter with a safety device for a projectile which is shot from a pipe with angular momentum |
US6752083B1 (en) | 1998-09-24 | 2004-06-22 | Schlumberger Technology Corporation | Detonators for use with explosive devices |
US20050045331A1 (en) * | 1998-10-27 | 2005-03-03 | Lerche Nolan C. | Secure activation of a downhole device |
US6938689B2 (en) | 1998-10-27 | 2005-09-06 | Schumberger Technology Corp. | Communicating with a tool |
US9464508B2 (en) | 1998-10-27 | 2016-10-11 | Schlumberger Technology Corporation | Interactive and/or secure activation of a tool |
US20190249970A1 (en) * | 2018-02-15 | 2019-08-15 | Goodrich Corporation | High explosive firing mechanism |
CN115265299A (en) * | 2022-08-19 | 2022-11-01 | 南京理工大学 | Centrifugal safety mechanism of small-caliber cannonball warhead trigger fuse acupuncture firing mechanism |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB190517795A (en) * | 1905-09-02 | 1906-05-03 | King S Norton Metal Company Lt | Improvements in Fuzes for Lyddits Shells and other Explosive Projectiles. |
US2331633A (en) * | 1939-06-20 | 1943-10-12 | Henry W Spooner | Fuse for projectiles |
US2971463A (en) * | 1951-07-30 | 1961-02-14 | Burrell Ellis | Spherical pellet delay device |
US2977883A (en) * | 1955-08-09 | 1961-04-04 | Czajkowski Norman | Detent release mechanism |
US3118379A (en) * | 1960-11-23 | 1964-01-21 | Fuze for a gyratory projectile | |
US3425354A (en) * | 1967-10-30 | 1969-02-04 | Honeywell Inc | Centrifugally armed fuze |
-
1969
- 1969-06-20 US US835186A patent/US3640225A/en not_active Expired - Lifetime
-
1970
- 1970-05-20 CA CA083,220,A patent/CA950265A/en not_active Expired
- 1970-06-09 CH CH862770A patent/CH508865A/en not_active IP Right Cessation
- 1970-06-10 DE DE19702028447 patent/DE2028447A1/en active Pending
- 1970-06-11 GB GB1265767D patent/GB1265767A/en not_active Expired
- 1970-06-16 NL NL7008801A patent/NL7008801A/xx unknown
- 1970-06-17 BE BE752110D patent/BE752110A/en unknown
- 1970-06-18 SE SE08440/70A patent/SE353957B/xx unknown
- 1970-06-18 FR FR707022587A patent/FR2046952B1/fr not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB190517795A (en) * | 1905-09-02 | 1906-05-03 | King S Norton Metal Company Lt | Improvements in Fuzes for Lyddits Shells and other Explosive Projectiles. |
US2331633A (en) * | 1939-06-20 | 1943-10-12 | Henry W Spooner | Fuse for projectiles |
US2971463A (en) * | 1951-07-30 | 1961-02-14 | Burrell Ellis | Spherical pellet delay device |
US2977883A (en) * | 1955-08-09 | 1961-04-04 | Czajkowski Norman | Detent release mechanism |
US3118379A (en) * | 1960-11-23 | 1964-01-21 | Fuze for a gyratory projectile | |
US3425354A (en) * | 1967-10-30 | 1969-02-04 | Honeywell Inc | Centrifugally armed fuze |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3962973A (en) * | 1974-10-29 | 1976-06-15 | Motorola, Inc. | Time delay control mechanism |
US5088413A (en) * | 1990-09-24 | 1992-02-18 | Schlumberger Technology Corporation | Method and apparatus for safe transport handling arming and firing of perforating guns using a bubble activated detonator |
US6752083B1 (en) | 1998-09-24 | 2004-06-22 | Schlumberger Technology Corporation | Detonators for use with explosive devices |
US6385031B1 (en) | 1998-09-24 | 2002-05-07 | Schlumberger Technology Corporation | Switches for use in tools |
US6386108B1 (en) | 1998-09-24 | 2002-05-14 | Schlumberger Technology Corp | Initiation of explosive devices |
US7347278B2 (en) | 1998-10-27 | 2008-03-25 | Schlumberger Technology Corporation | Secure activation of a downhole device |
US6604584B2 (en) | 1998-10-27 | 2003-08-12 | Schlumberger Technology Corporation | Downhole activation system |
US6283227B1 (en) | 1998-10-27 | 2001-09-04 | Schlumberger Technology Corporation | Downhole activation system that assigns and retrieves identifiers |
US6148263A (en) * | 1998-10-27 | 2000-11-14 | Schlumberger Technology Corporation | Activation of well tools |
US20050045331A1 (en) * | 1998-10-27 | 2005-03-03 | Lerche Nolan C. | Secure activation of a downhole device |
US9464508B2 (en) | 1998-10-27 | 2016-10-11 | Schlumberger Technology Corporation | Interactive and/or secure activation of a tool |
US6938689B2 (en) | 1998-10-27 | 2005-09-06 | Schumberger Technology Corp. | Communicating with a tool |
US20040074411A1 (en) * | 2001-03-12 | 2004-04-22 | Detlef Haeselich | Igniter with a safety device for a projectile which is shot from a pipe with angular momentum |
AU2002257524B2 (en) * | 2001-03-12 | 2006-05-18 | Nico-Pyrotechnik Hanns-Jurgen Diederichs Gmbh & Co. Kg | Igniter with a safety device for a projectile which is shot from a pipe with angular momentum |
US6880464B2 (en) * | 2001-03-12 | 2005-04-19 | Nico-Pyrotechnik Hans-Juergen Diederichs Gmbh & Co. Kg | Igniter for a projectile which is fired from a barrel with angular momentum |
US20190249970A1 (en) * | 2018-02-15 | 2019-08-15 | Goodrich Corporation | High explosive firing mechanism |
US10837747B2 (en) * | 2018-02-15 | 2020-11-17 | Goodrich Corporation | High explosive firing mechanism |
CN115265299A (en) * | 2022-08-19 | 2022-11-01 | 南京理工大学 | Centrifugal safety mechanism of small-caliber cannonball warhead trigger fuse acupuncture firing mechanism |
CN115265299B (en) * | 2022-08-19 | 2023-06-09 | 南京理工大学 | Centrifugal safety mechanism of small-caliber shell warhead triggering fuze needling ignition mechanism |
Also Published As
Publication number | Publication date |
---|---|
FR2046952B1 (en) | 1973-01-12 |
CA950265A (en) | 1974-07-02 |
NL7008801A (en) | 1970-12-22 |
BE752110A (en) | 1970-12-01 |
GB1265767A (en) | 1972-03-08 |
CH508865A (en) | 1971-06-15 |
DE2028447A1 (en) | 1971-01-07 |
SE353957B (en) | 1973-02-19 |
FR2046952A1 (en) | 1971-03-12 |
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