US3513778A - Self-sterilizing fuze - Google Patents
Self-sterilizing fuze Download PDFInfo
- Publication number
- US3513778A US3513778A US707376A US3513778DA US3513778A US 3513778 A US3513778 A US 3513778A US 707376 A US707376 A US 707376A US 3513778D A US3513778D A US 3513778DA US 3513778 A US3513778 A US 3513778A
- Authority
- US
- United States
- Prior art keywords
- fuze
- sterilizing
- self
- initiator
- mass
- 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
Links
- 238000010304 firing Methods 0.000 description 10
- 239000003999 initiator Substances 0.000 description 10
- 230000001954 sterilising effect Effects 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000004659 sterilization and disinfection Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 206010009696 Clumsiness Diseases 0.000 description 1
- 241001234640 Hemicrambe Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- DWPDSISGRAWLLV-JHZYRPMRSA-L calcium;(1r,4ar,4br,10ar)-1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylate Chemical compound [Ca+2].C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C([O-])=O.C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C([O-])=O DWPDSISGRAWLLV-JHZYRPMRSA-L 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 229940035564 duration Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/192—Initiators therefor designed for neutralisation on contact with water
-
- 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
- F42C15/38—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein arming is effected by chemical action
-
- 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
- F42C15/44—Arrangements for disarming, or for rendering harmless, fuzes after arming, e.g. after launch
Definitions
- the subject invention answers the needs of the art as described above by providing a simple chemically-actuated device for use in the sterilization of items of destruction such as mines and the like over a predetermined period of time in a relatively safe and reliable manner.
- Another object is to provide such a device which is simple in construction, low in cost, and facile in maintenance and use under a wide variety of service conditions.
- the figure is a side view, in section, of the device of this invention.
- the device of this invention is provided with a spring-loaded firing pin 11 adapted for engagement with an initiator 12.
- An annular ring 13 composed of a solidified deliquescent mass circumscribes the area intermediate the firing pin 11 and the initiator 12.
- the deliquescent mass 13 is adapted to absorb moisture out of the air through defined channels or inlets provided in the mass itself. The size of the channels control the sterilization time.
- ring 13 Upon the absorption of moisture, ring 13 will liquify and expand over a predetermined period of time into a fluidized cement.
- Such fluid upon expansion will then be directed by means of an inner channel 14 to the area, intermediate the firing pin and initiator, where it will be deposited.
- the fluidized cement will harden into a solidified mass. This will prevent the firing pin from moving in the direction of the initiator by creating an obstacle to such movement thereby sterilizing the mine.
- the process of sterilization begins when the air enters the channels and reacts with the deliquescent solid which pulls the moisture out of the air. As a result of this reaction, the pellet is liquified and such liquid enters the cavity between the firing pin and the initiator through the defined channels 14.
- the deliquescent material 13 may contain a hardening material such as the oxide or hydroxide of calcium or magnesium. In such case, the liquefaction of the hydroscope pellet 13 will dissolve the hardening agents mentioned and the resulting fluid will be directed into the cavity between the firing pin and the initiator. The carbon dioxide in the air will then convert the liquefied setting agent into a solid obstruction thereby preventing the firing pin from moving in the direction of the initiator.
- a hardening agent selected from the group consisting of magnesium oxide, magnesium hydroxide, calcium oxide, and calcium hydroxide.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Description
y 1970 R. w. HEINEMANN 3,513,778
SELF-STERILIZING FUZE Filed Feb. 9, 1968 INVENTOR.
ATTORNEY United States Patent Ofice 3,513,778 Patented May 26, 1970 3,513,778 SELF-STERILIZING FUZE Robert W. Heinemann, Dover, N.J., assignor to the United States of America as represented by the Secretary of the Army Filed Feb. 9, 1968, Ser. No. 707,376 Int. Cl. F42c 3/00, 9/00, 9/08 US. Cl. 102-70 6 Claims ABSTRACT OF THE DISCLOSURE This invention relates to a device for use in the selfsterilization of a mine.
Military success of an offensive activity within a specified sector of a battlefield ultimately requires mobility of forces which dictates movement within the area. It is therefore a military requirement of the opposing forces to impede or hinder this movement ultimately affecting the mobility of the enemy. In modern times this is accomplished within the specified sector by the mass sowing of items of destruction such as mines and the like. After a time, however, in order for the friendly or opposing forces to have access and mobility of their own within the sector, there must be provision for the deactivation of such items of destruction in a comparatively safe manner in contradistinction of their designed use of destruction. In the past, there were numerous mechanical adaptations placed on mines for the express purpose of sterilization but none of these expedients were acceptable due to a loss of reliability of the mine, or clumsiness of construction of the sterilizing device itself.
The subject invention answers the needs of the art as described above by providing a simple chemically-actuated device for use in the sterilization of items of destruction such as mines and the like over a predetermined period of time in a relatively safe and reliable manner.
It is therefore an object of this invention to provide a device for use in the self sterilization of a mine and the like.
Another object is to provide such a device which is simple in construction, low in cost, and facile in maintenance and use under a wide variety of service conditions.
Other objects and many of the attendant advantages of this invention will be more readily appreciated as the same becomes better understood by reference to the following detailed description and drawings, wherein:
The figure is a side view, in section, of the device of this invention.
The device of this invention, as shown in the figure, is provided with a spring-loaded firing pin 11 adapted for engagement with an initiator 12. An annular ring 13 composed of a solidified deliquescent mass circumscribes the area intermediate the firing pin 11 and the initiator 12. The deliquescent mass 13 is adapted to absorb moisture out of the air through defined channels or inlets provided in the mass itself. The size of the channels control the sterilization time. Upon the absorption of moisture, ring 13 will liquify and expand over a predetermined period of time into a fluidized cement. Such fluid upon expansion will then be directed by means of an inner channel 14 to the area, intermediate the firing pin and initiator, where it will be deposited. After a predetermined dura tion, the fluidized cement will harden into a solidified mass. This will prevent the firing pin from moving in the direction of the initiator by creating an obstacle to such movement thereby sterilizing the mine.
The annular deliquescent mass may be composed of a multilayer pellet or mixed with other ingredients to accomplish the design requirements.
The process of sterilization begins when the air enters the channels and reacts with the deliquescent solid which pulls the moisture out of the air. As a result of this reaction, the pellet is liquified and such liquid enters the cavity between the firing pin and the initiator through the defined channels 14. The deliquescent material 13 may contain a hardening material such as the oxide or hydroxide of calcium or magnesium. In such case, the liquefaction of the hydroscope pellet 13 will dissolve the hardening agents mentioned and the resulting fluid will be directed into the cavity between the firing pin and the initiator. The carbon dioxide in the air will then convert the liquefied setting agent into a solid obstruction thereby preventing the firing pin from moving in the direction of the initiator. It is further possible to encapsulate the solidified hydroscopic mass in a plastic or other impervious material with a defined number of holes to control the sterilization time. It is also possible to incorporate a variety of binders such as stearic acid or calcium resinate in order to achieve structural integrity of the hydroscopic mass 13 when in the dry state.
The deliquescent material which may be utilized in this invention include acids, base, or neutral materials. Thus, calcium chloride, lithium chloride, a magnesium chloride may be utilized in this invention as relatively neutral salts. The acidic type materials which may be used to advantage in this invention are numerous and include trichloroacetic, o bromobenzenesulfonic, p chlorobenzenesulfonic, 2- naphthalenesulfonic, and o-toluenesulfonic. The basic materials which may be used to advantage include sodium or potassium hydroxide.
Obviously, there are many modifications and variations of the present invention which are possible in light of the above teaching. One of the advantages of this invention lies in the simplicity and low cost of this type of fuze component system. It is therefore to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as described.
I claim:
1. In a fuze having a spring-loaded firing pin for engagement with an initiator, the improvement of an annular ring circumscribing the area intermediate said firing pin and said initiator, said ring composed of a solidified deliquescent mass containing a hardening agent chemically convertible to a fluid for deposition and set-up as a solid in the area intermediate said firing pin and said initiator.
2. The fuze of claim 1 wherein said ring consists of a deliquescent mass having dispersed therein a hardening agent selected from the group consisting of magnesium oxide, magnesium hydroxide, calcium oxide, and calcium hydroxide. i
3. The fuze of claim 2 whereinv said hardening agent is an oxide of magnesium.
4. The fuze of claim 2 wherein said hardening agent is magnesium hydroxide.
5. The fuze of claim 2 wherein said hardening agent 5 11/1909 Larsen 102-10 7/1955 MacAdams 10270 BENJAMIN A. BORCHELT, Primary Examiner T. H. WEBB, Assistant Examiner
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70737668A | 1968-02-09 | 1968-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3513778A true US3513778A (en) | 1970-05-26 |
Family
ID=24841458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US707376A Expired - Lifetime US3513778A (en) | 1968-02-09 | 1968-02-09 | Self-sterilizing fuze |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3513778A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4515088A (en) * | 1981-11-05 | 1985-05-07 | Valtion Teknillinen Tutkimuskeskus | Burner for pellets |
| FR2564965A1 (en) * | 1984-05-25 | 1985-11-29 | Matra | TEMPERATURE SENSITIVE PYROTECHNIC CHAIN INTERRUPTION DEVICE |
| WO2005036094A1 (en) * | 2003-10-16 | 2005-04-21 | Boris Pervan | Supplement to mines by which the time period is limited within which the activation of mines after their placing is possible |
| US11674784B2 (en) | 2016-03-14 | 2023-06-13 | JD Pharma, LLC | Systems and methods for selectively disabling electrical and mechanical devices |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US940033A (en) * | 1909-07-01 | 1909-11-16 | Martinus Larsen | Torpedo. |
| US2712790A (en) * | 1951-12-20 | 1955-07-12 | Edwin Hutchinson J | Sympathetic or concussion firing device |
-
1968
- 1968-02-09 US US707376A patent/US3513778A/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US940033A (en) * | 1909-07-01 | 1909-11-16 | Martinus Larsen | Torpedo. |
| US2712790A (en) * | 1951-12-20 | 1955-07-12 | Edwin Hutchinson J | Sympathetic or concussion firing device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4515088A (en) * | 1981-11-05 | 1985-05-07 | Valtion Teknillinen Tutkimuskeskus | Burner for pellets |
| FR2564965A1 (en) * | 1984-05-25 | 1985-11-29 | Matra | TEMPERATURE SENSITIVE PYROTECHNIC CHAIN INTERRUPTION DEVICE |
| WO2005036094A1 (en) * | 2003-10-16 | 2005-04-21 | Boris Pervan | Supplement to mines by which the time period is limited within which the activation of mines after their placing is possible |
| US20070101890A1 (en) * | 2003-10-16 | 2007-05-10 | Boris Pervan | Supplement to mines by which the time period is limited within which the activation of mines after their placing is possible |
| CN100529647C (en) * | 2003-10-16 | 2009-08-19 | 宝莱斯·斐尔凡 | Additon for land mines, which limits the time period during which the mine may be triggered after its placement |
| US7849799B2 (en) | 2003-10-16 | 2010-12-14 | Boris Pervan | Supplement to mines by which the time period is limited within which the activation of mines after their placing is possible |
| US11674784B2 (en) | 2016-03-14 | 2023-06-13 | JD Pharma, LLC | Systems and methods for selectively disabling electrical and mechanical devices |
| US20230324158A1 (en) * | 2016-03-14 | 2023-10-12 | JD Pharma, LLC | Systems and methods for selectively disabling electrical and mechanical devices |
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