US2891475A - Fuse - Google Patents
Fuse Download PDFInfo
- Publication number
- US2891475A US2891475A US477944A US47794454A US2891475A US 2891475 A US2891475 A US 2891475A US 477944 A US477944 A US 477944A US 47794454 A US47794454 A US 47794454A US 2891475 A US2891475 A US 2891475A
- Authority
- US
- United States
- Prior art keywords
- sheath
- sodium
- fuse
- composition
- chloride
- 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
- 239000000203 mixture Substances 0.000 claims description 18
- 229920001169 thermoplastic Polymers 0.000 claims description 12
- 239000004416 thermosoftening plastic Substances 0.000 claims description 12
- 239000011230 binding agent Substances 0.000 claims description 9
- 239000004753 textile Substances 0.000 claims description 9
- TZRXHJWUDPFEEY-UHFFFAOYSA-N Pentaerythritol Tetranitrate Chemical compound [O-][N+](=O)OCC(CO[N+]([O-])=O)(CO[N+]([O-])=O)CO[N+]([O-])=O TZRXHJWUDPFEEY-UHFFFAOYSA-N 0.000 claims description 7
- 239000000026 Pentaerythritol tetranitrate Substances 0.000 claims description 7
- 229960004321 pentaerithrityl tetranitrate Drugs 0.000 claims description 7
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 6
- 229910001610 cryolite Inorganic materials 0.000 claims description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 4
- 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 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 235000011164 potassium chloride Nutrition 0.000 claims description 3
- 239000001103 potassium chloride Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 235000010265 sodium sulphite Nutrition 0.000 claims description 3
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 2
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 2
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 2
- 239000001099 ammonium carbonate Substances 0.000 claims description 2
- 235000019270 ammonium chloride Nutrition 0.000 claims description 2
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 claims description 2
- 229910001863 barium hydroxide Inorganic materials 0.000 claims description 2
- 239000010436 fluorite Substances 0.000 claims description 2
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 2
- 239000011736 potassium bicarbonate Substances 0.000 claims description 2
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 2
- 239000002360 explosive Substances 0.000 description 8
- 240000002636 Manilkara bidentata Species 0.000 description 5
- 235000016302 balata Nutrition 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
- 229920000915 polyvinyl chloride Polymers 0.000 description 5
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 238000005474 detonation Methods 0.000 description 4
- 239000000899 Gutta-Percha Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 240000000342 Palaquium gutta Species 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 229920000588 gutta-percha Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229960002816 potassium chloride Drugs 0.000 description 2
- 235000015424 sodium Nutrition 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000001828 Gelatine Substances 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000002575 chemical warfare agent Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012170 montan wax Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical group OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
- C06C5/00—Fuses, e.g. fuse cords
- C06C5/04—Detonating fuses
Definitions
- Detonating explosive compositions used for blasting operations in gassy mines are of low power and have a low velocity of detonation, i.e., less than 3,000 metres per second and these have been made safer for such use by the provision of a flame suppressing sheathing material, in amount by weight of the order of 50 percent of that of the explosive, round the outside of the explosive cartridge.
- a flame suppressing sheathing material in amount by weight of the order of 50 percent of that of the explosive, round the outside of the explosive cartridge.
- such an explosive which unsheathed can be fired in amounts of about 4 oz. in inflammable methane/air mixtures can when sheathed be fired in amounts of about 20 oz. without causing ignition.
- the use of high power explosives of high velocity of detonation in inflammable gas atmospheres is not made safe by sheathing with these flame suppressing materials.
- the object of the present invention is to provide a flexible waterproof detonating fuse having a core of pentaerythritol tetranitrate which can be fired in inflammable gas mixtures without causing ignition thereof while still retaining the high initiating power and the high velocity of detonation of said core.
- a textile detonating fuse comprises a core comprising pentaerythritol tetranitrate and a sheath of a flexible waterproof thermoplastic composition of extrudable consistency between 60 C.
- Cryolite, sodium bicarbonate and sodium chloride are, however, preferred on'account of their effectiveness, low cost and: availability. It is also permits a composition to be obtained having the desired plasticity and extrudability between 60 and 200 C.
- thermoplastic binder may be either non-inflammable'for inflammable as long as the desired amount of flame'suppres'sorcan be incorporated to produce a com-.' position having the necessary plastic properties.
- Suitable binders include, for example a polyvinyl chloride, a polyethylene, rubber, a synthetic rubber, balata, gutta percha and bitumen.
- the flame suppressor and the thermoplastic binder may be mixed together by any convenient method, for example by mixing on hot rolls or in a heated dough mixer. With some thermoplastic binders it may be necessary or desirable to include other ingredients such as plasticisers and antioxidants.
- the detonating fuse of the invention can be used to extinguish an ignited inflammable gas and also for dispersing flame-extinguishing media contained in the sheath of the flexible waterproof thermoplastic composition.
- a number of lengths of textile detonating fuse are made having a core of pentaerythritol tetranitrate.
- One length is standard Cordtex (registered trademark) fuse and the others diifer from this only in having instead of the normal outer thermoplastic covering a sheath of the thickness and composition shown in the table below.
- These various fuses are then fired freely suspended in a methaneair mixture containing 9 percent methane, in an iron cylindrical chamber 20 ft. long and 5 ft. in diameter, to determine the maximum length which does not cause ignition thereof.
- the weight of pentaerythritol tetranitrate per foot length is in all cases 3 g. and the weights of flame suppressor are of the order of 9 g. per foot length.
- Composition A consists of 69.4 parts by weight soft balata, 16.3 parts by weight neoprene, 5.1 parts by weight montan wax and 9.2 parts of a neutral organic solid antioxidant produced by the condensation of an aliphatic a1- dehyde and an aromatic base.
- thermoplastic binder is a compound selected is 6,700 metr%/sec. and the powder is 93% blasting from the group consisting of polyvinyl chloride, poly- :gelatine.
- Examples 7 to 9 are the upper limits which are considered permissible to be fired in said chamber without damage to it.
- a textile detonating fuse including a core comprising pentaerythritol tetranitrate and a flexible waterproof sheath, the composition of said sheath consisting essentially of a finely divided flame suppressor and a thermoplastic binder, the amount of said flame suppressor being greater than the amount of said thermoplastic binder, said flame suppressor being a compound selected from the group consisting of cryolite, sodium bicarbonate, sodium chloride, fluorspar, potassium bicarbonate, potassium chloride, sodium sulphite, barium hydroxide, am-
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Multicomponent Fibers (AREA)
Description
June 23, '1959 DOL ET 2,891,475
FUSE,
Filed Dec. 27, 1954 THERMOPLAST SHEATH IMPREGNATED TH FLAME SUPPRESSING MATERIAL.
TEXTILE COVERING FOR coma ZWIIIIIIIIIIIIIIIIII I4 v '6 PENTAERYTHRITOL CORE NVENTORS Jaw/v EDMUND L 4 ATTORNEYS United States Patent FUSE John Edmund Dolan, Kilwinning, Kenneth John Brimley, Stevenston, and Beter Blaekwood Dempster, Saltcoats, Scofland, assignor's to Imperial Chemical Industries Limited, London, England, a corporation ofGreat Britain" -1 Application December 27, 1954, Serial No. 477,944 Claims priority, application Great Britain Fel'n'uary 1,1954
3Claims. '(Cl. 102-27) This invention is concerned with a. new and improved detonating fuse which on being detonated in inflammable gas mixtures will not cause ignition thereof;
Textile ,detonating fuses of variouslrinds comprising a core ofpentaefythritoltetranitrate. and a, sheath of textile material are well known and have been used for a Variety of applications. 'It is also known to provide these fuses with an outer covering of a thermoplastic material such as polyvinyl chloride or polyethylene; It has, however,
not previously been consideredpossible to use detonating fuses in inflammable gas mixtures :because of the danger of ignition thereof by the flame from the'detonating explosive'forming the core.
Detonating explosive compositions used for blasting operations in gassy mines are of low power and have a low velocity of detonation, i.e., less than 3,000 metres per second and these have been made safer for such use by the provision of a flame suppressing sheathing material, in amount by weight of the order of 50 percent of that of the explosive, round the outside of the explosive cartridge. Thus, for example, such an explosive which unsheathed can be fired in amounts of about 4 oz. in inflammable methane/air mixtures can when sheathed be fired in amounts of about 20 oz. without causing ignition. The use of high power explosives of high velocity of detonation in inflammable gas atmospheres, however, is not made safe by sheathing with these flame suppressing materials.
Although it is stated for instance in British specification No. 428,187 that fuse cords having a non-inflammable cover of polyvinyl chloride or certain related materials are particularly serviceable in fire damp pits, fuses having a core of pentaerythritol tetranitrate and an outer covering of polyvinyl chloride cannot be fired in the presence of inflammable gas mixtures without causing ignition of these mixtures.
The object of the present invention is to provide a flexible waterproof detonating fuse having a core of pentaerythritol tetranitrate which can be fired in inflammable gas mixtures without causing ignition thereof while still retaining the high initiating power and the high velocity of detonation of said core.
Further objects and advantages of the invention will be in part obvious and in part pointed out hereinafter.
The novel features of the invention may be best made clear from the following description and accompanying drawings wherein a safety detonating fuse embodying the invention is illustrated fragmentarily in longitudinal section.
preferred'thattheflame suppressor is in admixture with" the thermoplastic binder in the maximum amount which 'A'ocor'ding to the present invention a textile detonating fuse comprises a core comprising pentaerythritol tetranitrate and a sheath of a flexible waterproof thermoplastic composition of extrudable consistency between 60 C.
.bon'ate, potassiumchloride, sodium sulphite, barium hy droxide, ammonium chloride, ammonium bicarbonate and sodium silicofluoride. Cryolite, sodium bicarbonate and sodium chloride are, however, preferred on'account of their effectiveness, low cost and: availability. It is also permits a composition to be obtained having the desired plasticity and extrudability between 60 and 200 C.
The thermoplastic binder may be either non-inflammable'for inflammable as long as the desired amount of flame'suppres'sorcan be incorporated to produce a com-.' position having the necessary plastic properties. "Suitable binders include, for example a polyvinyl chloride, a polyethylene, rubber, a synthetic rubber, balata, gutta percha and bitumen.
The flame suppressor and the thermoplastic binder may be mixed together by any convenient method, for example by mixing on hot rolls or in a heated dough mixer. With some thermoplastic binders it may be necessary or desirable to include other ingredients such as plasticisers and antioxidants.
The detonating fuse of the invention can be used to extinguish an ignited inflammable gas and also for dispersing flame-extinguishing media contained in the sheath of the flexible waterproof thermoplastic composition.
The invention is illustrated by Examples 1-9 in the following table.
A number of lengths of textile detonating fuse are made having a core of pentaerythritol tetranitrate. One length is standard Cordtex (registered trademark) fuse and the others diifer from this only in having instead of the normal outer thermoplastic covering a sheath of the thickness and composition shown in the table below. These various fuses are then fired freely suspended in a methaneair mixture containing 9 percent methane, in an iron cylindrical chamber 20 ft. long and 5 ft. in diameter, to determine the maximum length which does not cause ignition thereof. The weight of pentaerythritol tetranitrate per foot length is in all cases 3 g. and the weights of flame suppressor are of the order of 9 g. per foot length.
Composition A consists of 69.4 parts by weight soft balata, 16.3 parts by weight neoprene, 5.1 parts by weight montan wax and 9.2 parts of a neutral organic solid antioxidant produced by the condensation of an aliphatic a1- dehyde and an aromatic base.
Patented June 23, 1959 Thlck- Outer Example Composition of ness of Diameter Length Fired Ignition Sheath Sheath of Fuse (17.)
Standard Cordtex 0. 21 0.5. Yes. Cryolite/Balata 6:1 0.034 0. N do 0.046
do 0.054 4 Cryolite/Balata 8:1 0. 034 5 do 0. 049 6 Sodium Bicarbonate] 0. 049
Composltion A 4:1. 7 Sodium Biearbonate/ 0.053 0.
Composition A 6:1. 8 do 0. 053 0. 248 150 plus 10 side No.
branches 1 a foot long. 9 do 0. 058 0. 248 2 x 75 ft. strapped No;
together.
In all the above examples of textile detonating fuses including the Cordtex fuse the velocity of detonation textile detonating fuse'as' claimed in claim 1 wherein the thermoplastic binder is a compound selected is 6,700 metr%/sec. and the powder is 93% blasting from the group consisting of polyvinyl chloride, poly- :gelatine.
The lengths given for Examples 7 to 9 are the upper limits which are considered permissible to be fired in said chamber without damage to it.
What we claim is:
1. A textile detonating fuse including a core comprising pentaerythritol tetranitrate and a flexible waterproof sheath, the composition of said sheath consisting essentially of a finely divided flame suppressor and a thermoplastic binder, the amount of said flame suppressor being greater than the amount of said thermoplastic binder, said flame suppressor being a compound selected from the group consisting of cryolite, sodium bicarbonate, sodium chloride, fluorspar, potassium bicarbonate, potassium chloride, sodium sulphite, barium hydroxide, am-
ethylene, natural rubber, synthetic rubber, balata, gutta percha and bitumen.
References Cited in the tile of this patent OTHER REFERENCES Bebie: Manual of Explosives, Military Pyrotechnics and Chemical Warfare Agents, The MacMillan Co., New York (1943), p. 136. (Copy in Div. 70.)
Colver: High Explosives, Crosby Lockwood and Son, London (1918), pp. 650, 651. (Copy in Div. 70.)
Claims (1)
1. A TEXTILE DETONATING FUSE INCLUDING A CORE COMPRISING PENTAERYTHRITOL TETRANITRATE AND A FLEXIBLE WATERPROOF SHEATH, THE COMPOSITION OF SAID SHEATH CONSISTING ESSENTIALLY OF A FINELY DIVIDED FLAME SUPPRESSOR AND A THERMOPLASTIC BINDER, THE AMOUNT OF SAID FLAME SUPPRESSOR BEING GREATER THAN THE AMOUNT OF SIAD THERMOPLASTIC BINDER, SAID FLAME SUPPRESSOR BEING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF CRYOLITE, SODIUM BICARBONATE, SODIUM CHLORIDE, FLUORSPAR, POTASSIUM BICARBONATE, POTASSIUM CHLORIDE, SODIUM SULPHITE, BARIUM HYDROXIDE, AMMONIUM CHLORIDE, AMMONIUM BICARBONATE, AND SODIUM SILICOFLUORIDE, AND SAID SHEATH COMPOSITION BEING EXTRUDABLE BETWEEN 60* AND 200* C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2891475X | 1954-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2891475A true US2891475A (en) | 1959-06-23 |
Family
ID=10917261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US477944A Expired - Lifetime US2891475A (en) | 1954-02-01 | 1954-12-27 | Fuse |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2891475A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2992611A (en) * | 1958-06-27 | 1961-07-18 | Du Pont | Seismic prospecting device |
| US3125024A (en) * | 1964-03-17 | Explosive connecting cord | ||
| US3155038A (en) * | 1962-09-21 | 1964-11-03 | Ensign Bickford Co | Detonating fuse |
| US3260201A (en) * | 1963-11-15 | 1966-07-12 | Ensign Bickford Co | Fuse having cellular plastic sheath |
| US3373686A (en) * | 1965-03-01 | 1968-03-19 | Lockheed Aircraft Corp | Explosive actuator |
| US3474730A (en) * | 1967-09-20 | 1969-10-28 | Apache Powder Co | Luminescent coated detonating fuse |
| US3730097A (en) * | 1970-11-20 | 1973-05-01 | Dynamit Nobel Ag | Fuze for use in firedamp-endangered and coal-dust-endangered operations |
| US4160062A (en) * | 1975-03-27 | 1979-07-03 | Dynamit Nobel Aktiengesellschaft | Pyrotechnical sealing cord |
| US4991511A (en) * | 1988-11-05 | 1991-02-12 | Haley & Weller Limited | Non-disruptive detonating cord |
| US5317974A (en) * | 1988-02-03 | 1994-06-07 | Imperial Chemical Industries Plc | Low energy fuse and method and manufacture |
| US5509355A (en) * | 1988-02-03 | 1996-04-23 | Imperial Chemical Industries Plc | Low energy fuse and method of manufacture |
| US5939661A (en) * | 1997-01-06 | 1999-08-17 | The Ensign-Bickford Company | Method of manufacturing an explosive carrier material, and articles containing the same |
| US20040232678A1 (en) * | 2003-05-23 | 2004-11-25 | Smith Bradley W. | Flexible inflator with co-extruded propellant and moisture barrier |
| US6960268B2 (en) | 2003-05-23 | 2005-11-01 | Autoliv Asp, Inc. | Gas generating propellant compositions adapted for co-extrusion with a plastic sheath |
| US20080028970A1 (en) * | 2004-06-01 | 2008-02-07 | Walsh Brendan M | Detonating Cord With Protective Jacket |
| US11371658B2 (en) * | 2019-03-12 | 2022-06-28 | Nikola Corporation | Pressurized vessel heat shield and thermal pressure relief system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1310666A (en) * | 1919-07-22 | Emmanuel lemaire | ||
| US2078240A (en) * | 1933-03-14 | 1937-04-27 | Ici Ltd | Manufacture of safety explosives |
| US2363569A (en) * | 1940-07-01 | 1944-11-28 | Ici Ltd | Manufacture of nondetonating fuses for blasting and similar purposes |
| US2445032A (en) * | 1946-02-26 | 1948-07-13 | Atlas Powder Co | Detonating fuse |
| US2513391A (en) * | 1943-10-06 | 1950-07-04 | Ici Ltd | Waterproof fuse |
| US2687553A (en) * | 1944-10-04 | 1954-08-31 | Lavorazione Mat Plast | Apparatus for manufacturing fuses |
-
1954
- 1954-12-27 US US477944A patent/US2891475A/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1310666A (en) * | 1919-07-22 | Emmanuel lemaire | ||
| US2078240A (en) * | 1933-03-14 | 1937-04-27 | Ici Ltd | Manufacture of safety explosives |
| US2363569A (en) * | 1940-07-01 | 1944-11-28 | Ici Ltd | Manufacture of nondetonating fuses for blasting and similar purposes |
| US2513391A (en) * | 1943-10-06 | 1950-07-04 | Ici Ltd | Waterproof fuse |
| US2687553A (en) * | 1944-10-04 | 1954-08-31 | Lavorazione Mat Plast | Apparatus for manufacturing fuses |
| US2445032A (en) * | 1946-02-26 | 1948-07-13 | Atlas Powder Co | Detonating fuse |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3125024A (en) * | 1964-03-17 | Explosive connecting cord | ||
| US2992611A (en) * | 1958-06-27 | 1961-07-18 | Du Pont | Seismic prospecting device |
| US3155038A (en) * | 1962-09-21 | 1964-11-03 | Ensign Bickford Co | Detonating fuse |
| US3260201A (en) * | 1963-11-15 | 1966-07-12 | Ensign Bickford Co | Fuse having cellular plastic sheath |
| US3373686A (en) * | 1965-03-01 | 1968-03-19 | Lockheed Aircraft Corp | Explosive actuator |
| US3474730A (en) * | 1967-09-20 | 1969-10-28 | Apache Powder Co | Luminescent coated detonating fuse |
| US3730097A (en) * | 1970-11-20 | 1973-05-01 | Dynamit Nobel Ag | Fuze for use in firedamp-endangered and coal-dust-endangered operations |
| US4160062A (en) * | 1975-03-27 | 1979-07-03 | Dynamit Nobel Aktiengesellschaft | Pyrotechnical sealing cord |
| USRE37689E1 (en) * | 1988-02-03 | 2002-05-07 | Orica Explosives Technology Pty. Ltd. | Low energy fuse and method of manufacture |
| US5317974A (en) * | 1988-02-03 | 1994-06-07 | Imperial Chemical Industries Plc | Low energy fuse and method and manufacture |
| US5509355A (en) * | 1988-02-03 | 1996-04-23 | Imperial Chemical Industries Plc | Low energy fuse and method of manufacture |
| US4991511A (en) * | 1988-11-05 | 1991-02-12 | Haley & Weller Limited | Non-disruptive detonating cord |
| US5939661A (en) * | 1997-01-06 | 1999-08-17 | The Ensign-Bickford Company | Method of manufacturing an explosive carrier material, and articles containing the same |
| US20040232678A1 (en) * | 2003-05-23 | 2004-11-25 | Smith Bradley W. | Flexible inflator with co-extruded propellant and moisture barrier |
| US6960268B2 (en) | 2003-05-23 | 2005-11-01 | Autoliv Asp, Inc. | Gas generating propellant compositions adapted for co-extrusion with a plastic sheath |
| US6979022B2 (en) | 2003-05-23 | 2005-12-27 | Autoliv Asp, Inc. | Flexible inflator with co-extruded propellant and moisture barrier |
| US20080028970A1 (en) * | 2004-06-01 | 2008-02-07 | Walsh Brendan M | Detonating Cord With Protective Jacket |
| US7921776B2 (en) | 2004-06-01 | 2011-04-12 | Ensign-Bickford Aerospace & Defense Company | Detonating cord with protective jacket |
| US11371658B2 (en) * | 2019-03-12 | 2022-06-28 | Nikola Corporation | Pressurized vessel heat shield and thermal pressure relief system |
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