US3007409A - Explosive cartridge - Google Patents
Explosive cartridge Download PDFInfo
- Publication number
- US3007409A US3007409A US793814A US79381459A US3007409A US 3007409 A US3007409 A US 3007409A US 793814 A US793814 A US 793814A US 79381459 A US79381459 A US 79381459A US 3007409 A US3007409 A US 3007409A
- Authority
- US
- United States
- Prior art keywords
- casing
- wad
- cartridge
- explosive
- primer
- 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
- 239000002360 explosive Substances 0.000 title description 10
- 239000000843 powder Substances 0.000 description 11
- 239000003380 propellant Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000037452 priming Effects 0.000 description 3
- 238000005474 detonation Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
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
- B25C1/163—Cartridges
-
- 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
-
- 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
- F42B3/04—Blasting cartridges, i.e. case and explosive for producing gas under pressure
-
- 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
Definitions
- This invention relates to explosive cartridges. More particularly it relates to cartridges which are adapted for use in providing the power means for explosively operated industrial tools.
- FIGURE 1 is a perspective view illustrating a preferred embodiment of the present invention
- FIGURE 2 is an assembled perspective view of the device taken along line 2-2 of FIGURE 1;
- FIGURE 3 is an exploded perspective view similar to FIGURE 2.
- the cartridge consists of a tubular casing comprising a cylinder closed at one end 12 and by a breech closure having a rim 13 for seating the cartridge in an igniting device.
- the cartridge may be made of a molded plastic, e.g. polyethylene.
- a wad 14 Positioned within the cylinder by an interference fit is a wad 14. The wad is disposed from the breeched closure 12 of the casing 10 to form a closed space 16 therewith. A quantity of explosive powder 18 is retained in the space 16.
- the wad 14 may also be of plastic, in the same manner as the casing.
- a flash tube 20 extends longitudinally through the wad so that its inner end communicates with the powder charge 18.
- the outer end of the wad 14- contains a recess 22 which is concentric with the flash tube 20.
- the recess 22 retains a cartridge primer 24.
- the wad may be dome-shaped on its inner surface and have a circular recess 26 about its intermediate periphery. This recess functions as a gas check and traps gasses which tend to escape.
- the cartridge When it is desired to use the cartridge (e.g. in a tool such as identified above), it is seated therein by rim 13 with the primer detonating means extending into the open end of the casing 10. The cartridge is actuated by the detonating means operating on the cartridge primer 24 in the direction of the arrow shown in FIGURE 2.
- the explosion of the primer in turn ignites the powder charge 16. Since the cartridge is confined in the tool, the explosive force drives the wad toward the free end of the cartridge. Thus because of the inaccessibility of the primer, the cartridge cannot be detonated accidentally e.g. by dropping it or inadvertently striking it. It can only be discharged by inserting a detonating means in the free end of the cartridge and delivering energy to the priming means in such a manner calculated to cause actuation of the primer.
- the primer is located centrally of the cartridge, the noise of detonation is muffled. Also the breech closure of the cartridge is sealed so that the only opening is in the direction of thrust. Thus there is no possibility of escape gasses leaking out through the back of the cartridge, as is possible in cartridges having a primer seated in the exterior wall.
- a device of the character described including a tubular casing closed at one end to form a breech closure and opened at the opposite end, a powder charge in said casing adjacent the closed end thereof, a wad in said casing adjacent the powder charge, the surface of said wad facing the open end of the casing spaced from the open end of the casing, and means in said wad for igniting said powder charge,
- a shell comprised of a tubular casing, one end of said casing being closed to form a breech closure, the opposite end of the casing being open, a powder charge in said casing adjacent the closed end, a wad in said casing adjacent said powder charge and spaced fromthe open end of the shell, said wad having a diameter substantially equal to the diameter of the casing, priming means located in the surface of the wad facing the open end of the casing for igniting said powder charge, and a flash tube in said wad between the priming means and powder charge.
- a device of the character described including a plastic tubular casing, closed at one end and open at the opposite end, a propellant charge in said casing adjacent the closed end, a plastic wad in said casing with an interference fit disposed from the open end of said casing adjacent said powder charge, and means in the surface of said wad facing the open end of the casing for igniting said charge.
- a device of the character described including a tubular casing comprised of a thermoplastic material, closed at one end to form a breech closure and open at the other end, a propellant charge in said casing, a wad of thermoplastic material disposed in said casing with an interference fit, said wad being adjacent to said propellant charge and spaced from the open end of the casing, primer means in said wad having its striking surface spaced from the open end of the casing, said wad adjacent the propellant charge is concave to form a gas sealing means.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Description
Nov. 7, 1961 w. F. BROSKE EXPLOSIVE CARTRIDGE Filed Feb. 17, 1959 INVENTOR. (Amman E BRQsKE United Sta meat --e;ii.' e
Patented Nov. 7, 1961 3,007,409 EXPLOSIVE CARTRIDGE William F. Broske, Camp Hill, Pa., assignor to AMP Incorporated, Harrisburg, Pa. Filed Feb. 17, 1959, Ser. No. 793,814 6 Claims. (Cl. 10238) This invention relates to explosive cartridges. More particularly it relates to cartridges which are adapted for use in providing the power means for explosively operated industrial tools.
Tools actuated by an explosive charge have found wide acceptance for uses which require a high thrust delivered by a small compact tool, also such tools are inexpensively operated at sites where conventional power means may be unavailable.
One objection to the use of these tools is the danger associated with the use of explosive tools. Conventional cartridges are liable to explode accidentally if dropped or used carelessly. Additionally the noise of the detonation report is unsatisfactory for use in populated areas or places where other persons are working.
Thus it is an object of this invention to provide an explosive cartridge that cannot be discharged accidentally but can only be fired deliberately. It is also an object of this invention to provide an explosive cartridge that is relatively noiseless and designed to preclude the escape of gasses generated by the explosion.
Other objects and attainments of the present invention will become apparent to those skilled in the art upon a reading of the following detailed description when taken in conjunction with the drawings in which there is shown and described an illustrative embodiment of the invention; it is to be understood, however, that this embodiment is not intended to be exhaustive nor limiting of the invention but is given for purposes of illustration in order that others skilled in the art may fully understand the invention and the principles thereof and the manner of applying it in practical use so that they may modify it in various forms, each as may be best suited to the conditions of a particular use.
FIGURE 1 is a perspective view illustrating a preferred embodiment of the present invention;
FIGURE 2 is an assembled perspective view of the device taken along line 2-2 of FIGURE 1;
FIGURE 3 is an exploded perspective view similar to FIGURE 2.
As shown in the drawings, the cartridge consists of a tubular casing comprising a cylinder closed at one end 12 and by a breech closure having a rim 13 for seating the cartridge in an igniting device. In the preferred embodiment the cartridge may be made of a molded plastic, e.g. polyethylene. Positioned within the cylinder by an interference fit is a wad 14. The wad is disposed from the breeched closure 12 of the casing 10 to form a closed space 16 therewith. A quantity of explosive powder 18 is retained in the space 16.
The wad 14 may also be of plastic, in the same manner as the casing. A flash tube 20 extends longitudinally through the wad so that its inner end communicates with the powder charge 18. The outer end of the wad 14- contains a recess 22 which is concentric with the flash tube 20. The recess 22 retains a cartridge primer 24. The wad may be dome-shaped on its inner surface and have a circular recess 26 about its intermediate periphery. This recess functions as a gas check and traps gasses which tend to escape.
When it is desired to use the cartridge (e.g. in a tool such as identified above), it is seated therein by rim 13 with the primer detonating means extending into the open end of the casing 10. The cartridge is actuated by the detonating means operating on the cartridge primer 24 in the direction of the arrow shown in FIGURE 2.
The explosion of the primer in turn ignites the powder charge 16. Since the cartridge is confined in the tool, the explosive force drives the wad toward the free end of the cartridge. Thus because of the inaccessibility of the primer, the cartridge cannot be detonated accidentally e.g. by dropping it or inadvertently striking it. It can only be discharged by inserting a detonating means in the free end of the cartridge and delivering energy to the priming means in such a manner calculated to cause actuation of the primer.
Because the primer is located centrally of the cartridge, the noise of detonation is muffled. Also the breech closure of the cartridge is sealed so that the only opening is in the direction of thrust. Thus there is no possibility of escape gasses leaking out through the back of the cartridge, as is possible in cartridges having a primer seated in the exterior wall.
Changes in construction will occur to those skilled in the art and various apparently different modifications and embodiments may be made without departing from the scope of the invention. The matter set forth in the foregoing description and accompanying drawings is offered by way of illustration only. The actual scope of the invention is intended to be defined in the following claims when viewed in their proper perspective against the prior art.
I claim:
1. A device of the character described including a tubular casing closed at one end to form a breech closure and opened at the opposite end, a powder charge in said casing adjacent the closed end thereof, a wad in said casing adjacent the powder charge, the surface of said wad facing the open end of the casing spaced from the open end of the casing, and means in said wad for igniting said powder charge,
2. A shell, comprised of a tubular casing, one end of said casing being closed to form a breech closure, the opposite end of the casing being open, a powder charge in said casing adjacent the closed end, a wad in said casing adjacent said powder charge and spaced fromthe open end of the shell, said wad having a diameter substantially equal to the diameter of the casing, priming means located in the surface of the wad facing the open end of the casing for igniting said powder charge, and a flash tube in said wad between the priming means and powder charge.
3. A device of the character described including a plastic tubular casing, closed at one end and open at the opposite end, a propellant charge in said casing adjacent the closed end, a plastic wad in said casing with an interference fit disposed from the open end of said casing adjacent said powder charge, and means in the surface of said wad facing the open end of the casing for igniting said charge.
4. A device of the character described including a tubular casing comprised of a thermoplastic material, closed at one end to form a breech closure and open at the other end, a propellant charge in said casing, a wad of thermoplastic material disposed in said casing with an interference fit, said wad being adjacent to said propellant charge and spaced from the open end of the casing, primer means in said wad having its striking surface spaced from the open end of the casing, said wad adjacent the propellant charge is concave to form a gas sealing means.
4 1 References QCited "in the 1e o'f'th'is patent UNITED STATES PATENTS,
49,773 V ,Lugo Sept. 5; 1865 430,229 Garland June 17, 1890 1,270,719 Franklin June 25; 1918 r 1,296,836 Mosher Mar. 11, 1919 1,605,655
-Dupont Nov. 2, 19 26
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL248411D NL248411A (en) | 1959-02-17 | ||
NL110246D NL110246C (en) | 1959-02-17 | ||
US793814A US3007409A (en) | 1959-02-17 | 1959-02-17 | Explosive cartridge |
DEA33932A DE1145073B (en) | 1959-02-17 | 1960-02-10 | Explosive cartridge for driving a tool |
BE587489A BE587489A (en) | 1959-02-17 | 1960-02-11 | Explosive cartridges |
GB4997/60A GB873192A (en) | 1959-02-17 | 1960-02-12 | Improvements in propellant explosive cartridges |
CH171760A CH382081A (en) | 1959-02-17 | 1960-02-16 | Cartridge for tools operated by explosive force |
FR818627A FR1248396A (en) | 1959-02-17 | 1960-02-16 | Explosive cartridges |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US793814A US3007409A (en) | 1959-02-17 | 1959-02-17 | Explosive cartridge |
Publications (1)
Publication Number | Publication Date |
---|---|
US3007409A true US3007409A (en) | 1961-11-07 |
Family
ID=25160875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US793814A Expired - Lifetime US3007409A (en) | 1959-02-17 | 1959-02-17 | Explosive cartridge |
Country Status (7)
Country | Link |
---|---|
US (1) | US3007409A (en) |
BE (1) | BE587489A (en) |
CH (1) | CH382081A (en) |
DE (1) | DE1145073B (en) |
FR (1) | FR1248396A (en) |
GB (1) | GB873192A (en) |
NL (2) | NL110246C (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3155039A (en) * | 1962-07-02 | 1964-11-03 | Amp Inc | Safety plug for explosive cartridge |
US3162123A (en) * | 1962-11-28 | 1964-12-22 | Olin Mathieson | Liquid propellant cartridge |
US3173369A (en) * | 1962-11-23 | 1965-03-16 | Amp Inc | Explosive shell for powder actuated tool |
US3187500A (en) * | 1959-01-12 | 1965-06-08 | Amp Inc | Explosively-actuated crimping tool |
US3293732A (en) * | 1959-04-13 | 1966-12-27 | Amp Inc | Hand tool for crimping electrical connectors |
DE1503136B1 (en) * | 1962-01-08 | 1971-08-26 | Amp Inc | CAP-SHAPED LOCKING PIECE FOR A PUSHING TOOL, ACTUATED BY A DRIVE CHARGE, FOR PRESSING LOET FREE CONNECTION TERMINALS |
US3973498A (en) * | 1973-05-28 | 1976-08-10 | Nitro-Nobel A.B. | Initiation device for explosive charge |
US5329855A (en) * | 1993-07-20 | 1994-07-19 | The Whitaker Corporation | Cartridge for explosively operated industrial tools |
US5388499A (en) * | 1994-03-15 | 1995-02-14 | The Whitaker Corporation | Cartridge for explosively operated industrial tools |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB882796A (en) * | 1959-04-13 | 1961-11-22 | Amp Inc | Improvements in tools for crimping electrical connectors to electrical conductors |
US3029705A (en) * | 1959-08-18 | 1962-04-17 | Amp Inc | Closure member for the firing chamber of an explosively-operated device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US49773A (en) * | 1865-09-05 | Improvement in projectiles for ordnance | ||
US430229A (en) * | 1890-06-17 | Cartridge | ||
US1270719A (en) * | 1917-10-29 | 1918-06-25 | Henry L Franklin | Well-shooting torpedo. |
US1296836A (en) * | 1918-07-29 | 1919-03-11 | Lewis A Mosher | Oil-well torpedo. |
US1605655A (en) * | 1923-05-07 | 1926-11-02 | Du Pont | Shell |
-
0
- NL NL248411D patent/NL248411A/xx unknown
- NL NL110246D patent/NL110246C/xx active
-
1959
- 1959-02-17 US US793814A patent/US3007409A/en not_active Expired - Lifetime
-
1960
- 1960-02-10 DE DEA33932A patent/DE1145073B/en active Pending
- 1960-02-11 BE BE587489A patent/BE587489A/en unknown
- 1960-02-12 GB GB4997/60A patent/GB873192A/en not_active Expired
- 1960-02-16 CH CH171760A patent/CH382081A/en unknown
- 1960-02-16 FR FR818627A patent/FR1248396A/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US49773A (en) * | 1865-09-05 | Improvement in projectiles for ordnance | ||
US430229A (en) * | 1890-06-17 | Cartridge | ||
US1270719A (en) * | 1917-10-29 | 1918-06-25 | Henry L Franklin | Well-shooting torpedo. |
US1296836A (en) * | 1918-07-29 | 1919-03-11 | Lewis A Mosher | Oil-well torpedo. |
US1605655A (en) * | 1923-05-07 | 1926-11-02 | Du Pont | Shell |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3187500A (en) * | 1959-01-12 | 1965-06-08 | Amp Inc | Explosively-actuated crimping tool |
US3293732A (en) * | 1959-04-13 | 1966-12-27 | Amp Inc | Hand tool for crimping electrical connectors |
DE1503136B1 (en) * | 1962-01-08 | 1971-08-26 | Amp Inc | CAP-SHAPED LOCKING PIECE FOR A PUSHING TOOL, ACTUATED BY A DRIVE CHARGE, FOR PRESSING LOET FREE CONNECTION TERMINALS |
US3155039A (en) * | 1962-07-02 | 1964-11-03 | Amp Inc | Safety plug for explosive cartridge |
DE1503138B1 (en) * | 1962-07-02 | 1971-09-23 | Amp Inc | EXPLOSIVE CARTRIDGE FOR DRIVING A TOOL FOR PRESSING LOET-FREE CONNECTION TERMINALS TO ELECTRIC CONDUCTORS AND PUSH TOOL |
US3173369A (en) * | 1962-11-23 | 1965-03-16 | Amp Inc | Explosive shell for powder actuated tool |
US3162123A (en) * | 1962-11-28 | 1964-12-22 | Olin Mathieson | Liquid propellant cartridge |
US3973498A (en) * | 1973-05-28 | 1976-08-10 | Nitro-Nobel A.B. | Initiation device for explosive charge |
US5329855A (en) * | 1993-07-20 | 1994-07-19 | The Whitaker Corporation | Cartridge for explosively operated industrial tools |
AU674952B2 (en) * | 1993-07-20 | 1997-01-16 | Whitaker Corporation, The | Cartridge for explosively operated industrial tools |
US5388499A (en) * | 1994-03-15 | 1995-02-14 | The Whitaker Corporation | Cartridge for explosively operated industrial tools |
Also Published As
Publication number | Publication date |
---|---|
NL110246C (en) | |
DE1145073B (en) | 1963-03-07 |
NL248411A (en) | |
CH382081A (en) | 1964-09-15 |
BE587489A (en) | 1960-05-30 |
FR1248396A (en) | 1960-12-09 |
GB873192A (en) | 1961-07-19 |
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