US3372643A - Low explosive primerless formed charges - Google Patents

Low explosive primerless formed charges Download PDF

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Publication number
US3372643A
US3372643A US524168A US52416866A US3372643A US 3372643 A US3372643 A US 3372643A US 524168 A US524168 A US 524168A US 52416866 A US52416866 A US 52416866A US 3372643 A US3372643 A US 3372643A
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US
United States
Prior art keywords
pellet
charge
ignition
explosive
nitrocellulose
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
Application number
US524168A
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English (en)
Inventor
Robert C Kvavle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
United Shoe Machinery Corp
Original Assignee
United Shoe Machinery Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by United Shoe Machinery Corp filed Critical United Shoe Machinery Corp
Priority to US524168A priority Critical patent/US3372643A/en
Priority to IL27242A priority patent/IL27242A/en
Priority to BE693087D priority patent/BE693087A/xx
Priority to DE1646330A priority patent/DE1646330C3/de
Priority to ES0336661A priority patent/ES336661A1/es
Priority to FR92782A priority patent/FR1509565A/fr
Priority to GB4555/67A priority patent/GB1171338A/en
Priority to CH141267A priority patent/CH443999A/de
Priority to NL676701530A priority patent/NL145483B/xx
Priority to SE6701404A priority patent/SE379038B/xx
Application granted granted Critical
Publication of US3372643A publication Critical patent/US3372643A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/16—Cartridges specially adapted for impact tools; Cartridge and bolts units
    • B25C1/166—Pellets
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C06B45/02—Compositions or products which are defined by structure or arrangement of component of product comprising particles of diverse size or shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container

Definitions

  • a primerless, low explosive nitrocellulose charge is adapted by its apparent density and preferably also by configuration, to be easily ignited in a substantially closed chamber by friction due to direct impact and without reliance upon diesel type ignition.
  • This invention relates to low explosive, formed charges, and more particularly to a pellet or capsule for providing operating energy to a device upon its impact ignition and deflagration therein.
  • the invention is herein illustrated as embodied in two configurations which are preferred for use in manually controlled, explosively actuated tools, but it will be appreciated that the charge is not necessarily thus limited in shape, it being recognized that various modifications may be desirable, within selected ranges of physical characteristics, to alter the potential energy of a given charge or its rate of deflagration, or to suit a particular ignition cavity.
  • low explosives including, for example, the better known gunpowder and nitrated cellulose wherein the nitrogen content does not exceed about 13 /2 by weight
  • the low explosive especially for industrial use, be available in a convenient, easily handled form, that it be at least relatively noncorrosive, perform uniformly over a wide range of prevailing temperatures with predictable energy release, and that it have fairly long shelf life without appreciable physical or chemical change.
  • Another object of the invention is to provide this preferred charge in an advantageous form facilitating its feeding, ignition and storage.
  • a further object of the invention is to provide a low explosive capsule requiring minimal energy little or none of which need be expended in compressing ambient gas, to obtain its ignition, and which charge is entirely consumable, that is, will leave substantially no residue other than the gases evolved in deflagration.
  • fibrous nitrated cellulose having a nitrogen content on the order to 13 /2% by weight is compacted and molded to an advantageous pellet shape from its ordinary commercially available powdered state, the pellet retaining a porosity such that its gross or apparent density comes Within the range of 0.6 gram per cc. to 1.55 grams per cc. and preferably having a thinner internal portion adapted to be crushed by impact to facilitate ignition and hence defiagration of the entire molded charge.
  • a further feature of the invention resides in providing a pellet molded of nitrocellulose as just described wherein the thinner portion mentioned is a central recessed web having the shape and size substantially corresponding to the impacting surface of a firing pin whereby the latter is enabled to initiate ignition by occluding within the pellet a predetermined limited amount of air entrapped externally of the web and internally thereof.
  • Another feature of the invention as herein shown consists in the provision, of a cup-shaped nitrocellulose pellet of the type aforesaid, its base constituting the web thinner than its surrounding cylindrical wall and having a slightly thicker, preferably raised, central portion adapted to receive energy from a firing pin in a localized initial ignition area.
  • FIG. 1 is a perspective view of an exemplary molded pellet consisting of a low explosive
  • FIG. 2 is a diametric section of the charge shown in FIG. 1 and indicating (though not in true proportion) a thickened igniter portion;
  • FIG. 3 is a diametric section of a modified form of my explosive capsule.
  • FIGS. 1 and 2 there is shown one configuration of a capsule or pellet 10 to low explosive having special merit when employed to supply energy to a device, for instance a fastener driving tool.
  • low explosive is meant that class of explosive materials which will, upon ignition, progressively burn or deflagrate, and the definition is intended to exclude those more highly sensitive explosive materials which have their ignition characterized as detonation, a phenomenon which occurs much more violently and at about the speed of sound or roughly one-thousand times faster than usual defiagration.
  • the pellet 10 has a generally cylindrical or cupshaped body 12 and a thinner base or web 14.
  • the entire pellet exclusive of any or 'various diluents and additives, is preferably molded from a nitrocellulose fibre powder having a nitrogen content in the range of from l2 /2% to 15% by Weight. It is essential of course to take preventive precaution against premature explosion of any dust from such powder, but the fibrous nitrocellulose powder while in the normal atmosphere of a room and in reasonably dry condition may be safely compacted to mold it into conveniently useful configuration.
  • ignition of a low explosive charge may be effected by direct mechanical impact therewith thus avoiding any need for using a primer or other complex ignition mechanism, and rendering an explosively actuated device, such as a fastener tool, more compact, safe, and portable.
  • an explosively actuated device such as a fastener tool
  • the relatively obdurate low explosive to be ignited by impact must be substantially confined so that only a limited amount of trapped air, preferably some surrounding and some entrapped within the charge itself, is available for aiding ignition and insuring that gas then evolved builds up pressure conductive to defiagrating the entire explosive charge.
  • the pellet is desirably molded in a configuration to constitute an obturating liner for an ignition cavity wherein the explosive is to be used, the pellet 10 shown in FIGS. 1, 2 presuming a generally cylindrical ignition cavity of substantially corresponding size.
  • a male forming die (not shown) is selected to correspond substantially in shape and size at its central portion with a firing pin (or a protrusion on such a pin) expected to be used, and would compact the charge material thus providing a central bore or recess 16 in the pellet which is ultimately used to entrap a predetermined volume of air aiding in ignition and/ or ensuing defiagraton.
  • the thin base 14 preferably has a thickened central igniter portion 18 which, in this case, is raised to approximately double the base thickness surrounding the portion 18. This configuration is effected by a suitable corresponding recess in the chargeengaging end of the male mold.
  • the reduced central portion 18 is shown as a truncated cone having a tapered wall 20 (FIG. 2) extending at about a 45 angle between the base 14 and the raised igniter or reduced central area adapted to be struck by a firing pin.
  • one pellet configuration according to the invention and adapted for use in a stud driving tool has an outside diameter of approximately an inside diameter of approximately 0.187", an overall thickness of about /3, a minimum base thickness of about 0.030 to 0.040" and a raised igniter portion of about 0.055 to 0.065. Since it is probable that the mechanics which facilitates impact ignition of low explosive is assisted by air entrapped between the molded nitrocellulose fibres themselves, i.e.
  • the molding process should compact the powder to the preferred self-sustaining form and still retain porosity, a suitable range of pellet density for nitrocellulose fibre having a nitrogen content on the order of 13.2% by Weight being on the order of about 0.6 gram to 1.55 grams per cubic centimeter, for example.
  • Solid nitrocellulose, incidentally, i.e. nonporous, has a density of 1.6 grams per cc.
  • the raised igniter portion 18 may be more porous, its fibres defining substantially continuous burning surfaces, and be expected to entrap slightly more air than in the surrounding web, such entrapped air being advantageously available together with air compressed about the igniter portion in this critical locality for chemical decomposition when the firing pin kinetic energy is absorbed in frictionally crushing and initiating ignition in a space then enclosed by the pin end and the inside walls of the pellet.
  • the kinetic energy upon impact tends to produce localized incipient ignition that less reliably results in complete burning of the charge.
  • a variant form of pellet of low explosive preferably having substantially the same chemical composition as referred to above, is provided intermediate its height with a web 32 having a thickness which is less than that of the surrounding wall with which it is integral.
  • the web 32 may have a centrally thickened igniter portion (not shown in FIG. 3) corresponding to that at 18 in FIGS. 1 and 2, but need not have such a portion. This is because it is a feature of the configuration now being described that its general symmetry and duplicate upper and lower face portions 34 avoid the problem of orienting each molded charge 30 to insure that one or the other face of the web 32 will confront a firing pin.
  • the occlusion aflTorded by the pellet 30 is probably not as precise as that attained with the pellet 10; for most purposes, however, its precision is adequate though the molding dies Will not be quite as simple and slightly greater kinetic energy may be needed in the firing pin.
  • the firing pin moving axially in a pellet crushes the nitrocellulose fibres after it has been received in the closely fitting pellet walls forming the recess 16.
  • the impacting stroke of the pin may commence either when it is spaced axially or otherwise from the pellet, or it may start, as is often preferred, with the pin in an initial rest position of engagement with the pellet, for instance contacting a portion such as at 18 or 32 of the pellet.
  • An advantage of such stationary pin contact with the pellet prior to ignition by frictional engagement therewith of the pin is that the pellet can thus be urged into self-sealing relation within its firing chamber.
  • the body of the pellet 10 or 30 is adapted to closely fit the percussion cavity so that gas pressure generated will not prematurely displace the pellet or blow it apart. It is believed that the impact action of the firing pin (or other equivalent striker means) closely fitting the recess 16 on the pellet is concomitant with an adiabatic pressure increase in the trapped and entrapped gas. It has been ascertained from trials that given a certain potential impact energy, the initial ignition is facilitated 'by the provision of the reduced igniter portion 18 for localizing pellet compression.
  • the molded composition and structure of the charge as described is found to be economical and reliable. Its corrosive effect on steel commonly used is minimal. If desired, the external walls of the pellet may be treated to shed water and moisture though such processing is probably unnecessary for many commercial uses, but probably desirable in the case of military use.
  • a primerless defiagrating charge for use in an explosively actuated device comprising a compacted body of nitrocellulose fibres having air in the substantially interconnected interstitial spaces between the fibres defining continuous burning surfaces, said charge having a density less than 1.6 grams per cc. yet more than about 0.6 gram per cc.
  • a primerless mechanically fired cartridge comprising a pellet of nitrated cellulose fibres, said pellet having air in the substantially interconnected interstitial spaces between the fibres defining continuous burning surfaces, and having suflicient resilience to act as an obturator in an enclosing chamber, the density of said pellet being less than that of nitrocellulose per se and sufficient to retain its self-sustaining form.
  • a low explosive pellet adapted to be entirely deflagrated in an impact ignition cavity, said pellet being annular in cross section and having a central recess adapted to serve as an igniter, the bottom of said recess being defined by a wall having a thickness less than that of the surrounding wall.
  • a relatively stable low explosive charge ignitable by impact to generate gas by defiagration, said charge comprising a pellet of nitrocellulose fibres molded into a self-sustaining porous form retaining entrapped air in its substantially interconnected interstitial spaces between the fibres, said pellet having an outer resilient Wall for lining an enclosing chamber wherein the charge is to be deflagrated, and an igniter portion recessed with respect to said outer wall, at least said igniter portion having a density less than nitrocellulose per se and its fibres defining continuous burning surfaces.
  • a wholly consumable caseless defiagrating charge to be ignited by impact therewith in a chamber said charge comprising a substantially resilient pellet compacted from fibrous nitrocellulose and having a density less than nitrocellulose per se and having an igniter portion provided with a web thickness less than any other dimension of any other portion of the pellet.
  • a charge as set forth in claim wherein the nitrogen in the nitrocellulose fibre is within the range of 12.75% to 13.75% by weight.
  • a charge as set forth in claim 6 wherein the pellet has a density in the range of from 0.9 gram per cubic centimeter to 1.55 grams per cubic centimeter.
  • pellet is cylindrical and has an inner bore the bottom of which is determined by the igniter portion, the surface of said bore being smooth to cooperate in closely fitting relation with an impacting means.
  • a defiagration pellet comprising compacted fibrous nitrocellulose, the cross section of the pellet being such as to serve as an obturator and corresponding substantially to that of the chamber, and the pellet having an axial recess an end of which is defined in part by a raised igniter portion, the cross section of said recess corresponding substantially with that of at least a portion of said firing pin.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Air Bags (AREA)
  • Reinforced Plastic Materials (AREA)
  • Fodder In General (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
US524168A 1966-02-01 1966-02-01 Low explosive primerless formed charges Expired - Lifetime US3372643A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US524168A US3372643A (en) 1966-02-01 1966-02-01 Low explosive primerless formed charges
IL27242A IL27242A (en) 1966-02-01 1967-01-11 Primerless explosive charge
BE693087D BE693087A (sv) 1966-02-01 1967-01-24
DE1646330A DE1646330C3 (de) 1966-02-01 1967-01-25 Feste, zünderlose, gepreßte, durch Schlag zündbare Treibladungstablette
ES0336661A ES336661A1 (es) 1966-02-01 1967-01-26 Perfeccionamientos en la fabricacion de cargas de explosivo lento, sin cebo, para aparatos accionados por explosiones.
FR92782A FR1509565A (fr) 1966-02-01 1967-01-27 Pastilles de matières explosives
GB4555/67A GB1171338A (en) 1966-02-01 1967-01-31 Improvements in Low Explosive Primerless Formed Charges
CH141267A CH443999A (de) 1966-02-01 1967-01-31 Zünderloser Explosivkörper
NL676701530A NL145483B (nl) 1966-02-01 1967-02-01 Homogene pil of dergelijk vormstuk van vast, weinig explosief materiaal, welke door een mechanische slag ontstoken kan worden.
SE6701404A SE379038B (sv) 1966-02-01 1967-02-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US524168A US3372643A (en) 1966-02-01 1966-02-01 Low explosive primerless formed charges

Publications (1)

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US3372643A true US3372643A (en) 1968-03-12

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US524168A Expired - Lifetime US3372643A (en) 1966-02-01 1966-02-01 Low explosive primerless formed charges

Country Status (10)

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US (1) US3372643A (sv)
BE (1) BE693087A (sv)
CH (1) CH443999A (sv)
DE (1) DE1646330C3 (sv)
ES (1) ES336661A1 (sv)
FR (1) FR1509565A (sv)
GB (1) GB1171338A (sv)
IL (1) IL27242A (sv)
NL (1) NL145483B (sv)
SE (1) SE379038B (sv)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463086A (en) * 1967-11-06 1969-08-26 Olin Mathieson Caseless smokeless powder pellet and method of preparing same
US3580180A (en) * 1967-09-19 1971-05-25 Dynamit Nobel Ag Consumable industrial propellant cartridge
US3648616A (en) * 1969-09-10 1972-03-14 Omark Industries Inc Multistage power load
US3724375A (en) * 1970-04-06 1973-04-03 Us Navy Illuminating flare having high drag configuration
US3795195A (en) * 1970-01-21 1974-03-05 J Silva Electrical initiator
US3911825A (en) * 1970-07-18 1975-10-14 Dynamit Nobel Ag Caseless formed propellant powder charge
EP0022261A1 (en) * 1979-07-04 1981-01-14 Berfi S.P.A. Bullet for firearms
US4702167A (en) * 1984-09-01 1987-10-27 Rheinmetall Gmbh Propellant-charge module
EP0441098A1 (en) * 1988-04-01 1991-08-14 Avtec Research And Development Corporation Self-energizing fastener system
US5054396A (en) * 1988-01-09 1991-10-08 Dynamit Nobel Aktiengesellschaft Fuse element, preferably with long delay period and method for producing the same
US5208420A (en) * 1992-03-13 1993-05-04 Hamilton Brian K Propellant strip assembly
US5216200A (en) * 1990-12-07 1993-06-01 Dynamit Nobel Aktiengesellschaft Device for igniting a propellant charge, a cartridge for the charge and a magazine for holding cartridges, especially for stud setting or driving tools
US5485790A (en) * 1993-05-28 1996-01-23 Oea, Inc. Gas generator with multiple-charge primer
US5684266A (en) * 1995-06-05 1997-11-04 Sencorp Propellant charge structure for generating gases to propel an object from a tool
WO1999024777A1 (en) * 1997-11-10 1999-05-20 Joe Lin Solid propellant charge unit for fasteners
WO1999036745A1 (en) 1998-01-13 1999-07-22 Senco Products. Inc. Propellant strip assembly and propellant charge structure
CN1055887C (zh) * 1997-08-18 2000-08-30 上海海行机械厂 无击发药无壳射钉弹及其制造方法
WO2003084900A1 (en) * 2002-04-08 2003-10-16 Borisenko, Viktor Nikolayevich Method for production of nitrocellulose base for consolidated charges and consolidated propellant charge based thereon
US20040244626A1 (en) * 2003-05-24 2004-12-09 Gerhard Ehmig Propellant charge batch in particular for bolt setting tools
US20120321413A1 (en) * 2010-02-12 2012-12-20 Fernando Masas Apparatus for installing fasteners and explosive loads for use therewith
US20130200601A1 (en) * 2010-10-29 2013-08-08 Trw Airbag Systems Gmbh Solid fuel body, gas generator, module having a gas generator, and pyrotechnic drive unit
CN103387475A (zh) * 2013-07-31 2013-11-13 雅化集团绵阳实业有限公司 一种地震勘探电雷管引火药
EP2592061A3 (de) * 2011-10-21 2014-01-29 Bayern-Chemie Gesellschaft für flugchemische Antriebe mbH Treibstoffformkörper für einen Gasgenerator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570645B1 (fr) * 1984-09-24 1989-07-21 Poudres & Explosifs Ste Nale Procede de fabrication d'objets combustibles par emboutissage de papier combustible et objets combustibles ainsi obtenus
DE3524496A1 (de) * 1985-07-09 1987-01-15 Nitrochemie Gmbh Beiladung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE27652C (de) * G. DÜNNINGHAUS !n Unna Neuerungen an einer Saugflasche
US552919A (en) * 1889-09-24 1896-01-14 Cellular explosive charge
GB160940A (en) * 1919-12-31 1921-03-31 Conrad Fergus Howden Improvements in apparatus for drying coated or enamelled paper, waterproofed cloth and such like
US3283657A (en) * 1964-03-30 1966-11-08 United Shoe Machinery Corp Method for direct percussive ignition of stable explosives, and apparatus therefor
US3302319A (en) * 1964-04-22 1967-02-07 Corat S A Cie De Rech S Et D A Devices for firing objects of the class of projectiles, plugs, pins and nails

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE27652C (de) * G. DÜNNINGHAUS !n Unna Neuerungen an einer Saugflasche
US552919A (en) * 1889-09-24 1896-01-14 Cellular explosive charge
GB160940A (en) * 1919-12-31 1921-03-31 Conrad Fergus Howden Improvements in apparatus for drying coated or enamelled paper, waterproofed cloth and such like
US3283657A (en) * 1964-03-30 1966-11-08 United Shoe Machinery Corp Method for direct percussive ignition of stable explosives, and apparatus therefor
US3302319A (en) * 1964-04-22 1967-02-07 Corat S A Cie De Rech S Et D A Devices for firing objects of the class of projectiles, plugs, pins and nails

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3580180A (en) * 1967-09-19 1971-05-25 Dynamit Nobel Ag Consumable industrial propellant cartridge
US3463086A (en) * 1967-11-06 1969-08-26 Olin Mathieson Caseless smokeless powder pellet and method of preparing same
US3648616A (en) * 1969-09-10 1972-03-14 Omark Industries Inc Multistage power load
US3795195A (en) * 1970-01-21 1974-03-05 J Silva Electrical initiator
US3724375A (en) * 1970-04-06 1973-04-03 Us Navy Illuminating flare having high drag configuration
US4014963A (en) * 1970-07-18 1977-03-29 Dynamit Nobel Aktiengesellschaft Molding a primer charge within a caseless propellant charge
US3911825A (en) * 1970-07-18 1975-10-14 Dynamit Nobel Ag Caseless formed propellant powder charge
EP0022261A1 (en) * 1979-07-04 1981-01-14 Berfi S.P.A. Bullet for firearms
US4702167A (en) * 1984-09-01 1987-10-27 Rheinmetall Gmbh Propellant-charge module
US4864932A (en) * 1984-09-01 1989-09-12 Kalrheinz Reinelt Propellant charge module
US5054396A (en) * 1988-01-09 1991-10-08 Dynamit Nobel Aktiengesellschaft Fuse element, preferably with long delay period and method for producing the same
EP0441098A1 (en) * 1988-04-01 1991-08-14 Avtec Research And Development Corporation Self-energizing fastener system
US5216200A (en) * 1990-12-07 1993-06-01 Dynamit Nobel Aktiengesellschaft Device for igniting a propellant charge, a cartridge for the charge and a magazine for holding cartridges, especially for stud setting or driving tools
US5208420A (en) * 1992-03-13 1993-05-04 Hamilton Brian K Propellant strip assembly
US5485790A (en) * 1993-05-28 1996-01-23 Oea, Inc. Gas generator with multiple-charge primer
US5684266A (en) * 1995-06-05 1997-11-04 Sencorp Propellant charge structure for generating gases to propel an object from a tool
CN1055887C (zh) * 1997-08-18 2000-08-30 上海海行机械厂 无击发药无壳射钉弹及其制造方法
WO1999024777A1 (en) * 1997-11-10 1999-05-20 Joe Lin Solid propellant charge unit for fasteners
WO1999036745A1 (en) 1998-01-13 1999-07-22 Senco Products. Inc. Propellant strip assembly and propellant charge structure
US6053108A (en) * 1998-01-13 2000-04-25 Senco Products, Inc. Propellant strip assembly and propellant charge structure
WO2003084900A1 (en) * 2002-04-08 2003-10-16 Borisenko, Viktor Nikolayevich Method for production of nitrocellulose base for consolidated charges and consolidated propellant charge based thereon
US20040244626A1 (en) * 2003-05-24 2004-12-09 Gerhard Ehmig Propellant charge batch in particular for bolt setting tools
US20120321413A1 (en) * 2010-02-12 2012-12-20 Fernando Masas Apparatus for installing fasteners and explosive loads for use therewith
US20130200601A1 (en) * 2010-10-29 2013-08-08 Trw Airbag Systems Gmbh Solid fuel body, gas generator, module having a gas generator, and pyrotechnic drive unit
US10501386B2 (en) * 2010-10-29 2019-12-10 Trw Airbag Systems Gmbh Solid fuel body, gas generator, module having a gas generator, and pyrotechnic drive unit
EP2592061A3 (de) * 2011-10-21 2014-01-29 Bayern-Chemie Gesellschaft für flugchemische Antriebe mbH Treibstoffformkörper für einen Gasgenerator
CN103387475A (zh) * 2013-07-31 2013-11-13 雅化集团绵阳实业有限公司 一种地震勘探电雷管引火药

Also Published As

Publication number Publication date
IL27242A (en) 1971-12-29
FR1509565A (fr) 1968-01-12
GB1171338A (en) 1969-11-19
ES336661A1 (es) 1967-11-01
CH443999A (de) 1967-09-15
SE379038B (sv) 1975-09-22
BE693087A (sv) 1967-07-03
NL6701530A (sv) 1967-08-02
DE1646330A1 (de) 1971-07-08
DE1646330C3 (de) 1979-08-23
NL145483B (nl) 1975-04-15
DE1646330B2 (de) 1973-09-13

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