US3339487A - Cartridge - Google Patents

Cartridge Download PDF

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Publication number
US3339487A
US3339487A US423785A US42378565A US3339487A US 3339487 A US3339487 A US 3339487A US 423785 A US423785 A US 423785A US 42378565 A US42378565 A US 42378565A US 3339487 A US3339487 A US 3339487A
Authority
US
United States
Prior art keywords
cartridge
cartridge case
bullet
neck portion
firing
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
US423785A
Other languages
English (en)
Inventor
Stadler Hans
Gawlick Heinz
Umbach Hans
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Application granted granted Critical
Publication of US3339487A publication Critical patent/US3339487A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/067—Mounting or locking missiles in cartridge cases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/26—Cartridge cases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/26—Cartridge cases
    • F42B5/30—Cartridge cases of plastics, i.e. the cartridge-case tube is of plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/02—Cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/02—Cartridges
    • F42B8/04—Blank cartridges, i.e. primed cartridges without projectile but containing an explosive or combustible powder charge

Definitions

  • the present invention relates to a cartridge, and more particularly to a cartridge made of plastic material for firing over short distances.
  • German Patent 341,991 to manufacture in one piece the bullet and cartridge case with an infantry cartridge consisting of metal and to create by a corresponding dimensioning of the wall thickness between the bullet and cartridge case a definite separating zone
  • German Patent 1,146,785 for firing over short distances.
  • plastic material particularly of plastic resinous material.
  • the plastic part is composed of three parts, namely the case part, the bullet part and a neck part connecting the case with the bullet.
  • the neck part thereby has a smaller diameter than the cartridge case.
  • a step is provided whereas at the transition from the neck part to the bullet the wall thickness is so chosen that a definite separating zone occurs thereat.
  • the bullet separates in this zone from the cartridge case with its neck portion.
  • the aforementioned aim to avoid the wedging or jamming of the cartridge case in the cartridge chamber is made possible according to the present invention by a novel construction of the neck part, and more particularly in that a number of bursting grooves extending in the direction of the cartridge axis are worked or formed into the neck portion. If with such a construction the propellent gas pressure occurs in the neck portion, which leads to the separation of the bullet, then the bursting grooves tear open. These grooves act in a manner of a number of valve apertures through which the propellent gases reach the outside of the neck part.
  • the inventive concept can also be extended to the cartridge case in such a manner that the bursting grooves extend beyond the shoulder over the case, appropriately up to within proximity of the bottom piece.
  • the effect of the pressure relief thereby takes place practically over the entire length of the case and the neck part.
  • Another object of the present invention resides in the provision of a plastic cartridge for practice ammunition consisting of integrally formed bullet, neck portion and cartridge case which assures with certainty the absence of jamming or sticking of the cartridge case and/or neck portion in the cartridge chamber.
  • a further object of the present invention resides in the provision of a unitary plastic cartridge, especially for practice ammunition, which assures proper operation even when using semi-automatic or automatic weapons.
  • Still another object of the present invention resides on the provision of a plastic cartridge made in one piece and consisting of bullet and cartridge case which may be readily manufactured in such a manner as to avoid the aforementioned shortcomings.
  • FIGURE 1 is an elevational view of a cartridge in accordance with the present invention prior to firing thereof, one-half of the cartridge being shown in axial cross section,
  • FIGURE 2 is an elevational view of the cartridge case of FIGURE 1 after firing thereof
  • FIGURE 3 is a partial cross sectional view, in a plane transverse to the cartridge axis, through the neck portion of a cartridge in accordance with the present invention.
  • FIGURES 4 and 5 are partial cross sectional views. similar to FIGURE 3, of two further modified embodiments of cartridge cases in accordance with the present invention.
  • the cartridge illustrated in FIGURE 1 is made with the bullet part 1, the neck part 2 and the cartridge case 3 thereof in one piece and of plastic material. Any suitable known plastic material may thereby be used.
  • the bottom piece 4 together with the primer consists of metal and is clamped to or connected in a conventional manner with the open end of the case 3 by an elastic formlocking connection.
  • the separating zone between neck part 2 and bullet part 1 is indicated by reference numeral 5.
  • the neck part 2 passes over into the cartridge case 3 by way of a shoulder 6.
  • a plurality of bursting grooves 7 are formed into the 3 neck part 2 which extend from the separating zone 5 up to the shoulder 6.
  • the embodiment illustrated in FIGURE 1 also shows the further development of the present invention, namely that the bursting grooves 7 are extended beyond the shoulder 6 over the cartridge case jacket 3 up to within proximity of the bottom piece 4.
  • FIG- URE 2 The condition of the cartridge part remaining in the cartridge chamber after the firing can be seen from FIG- URE 2.
  • the bursting grooves 7 and 8 are torn open by the pressure produced during the firing.
  • the developed gas has therefore the possibility of passing from the cartridge inside to the outside thereof.
  • FIGURES 3 to 5 Various cross sectional forms of the neck part 2 and/ or cartridge case part 3 are described by referenc to FIGURES 3 to 5.
  • the bursting grooves 10 are made as web portions between two thickened or reinforced portions 11. Six bursting grooves 10 are assumed in this embodiment.
  • the bursting grooves 10 are formed in the embodiment of FIGURE 4 by the web portions 12.
  • the reinforced portions 13, however, have in this embodiment approximately the shape of a fish-belly.
  • the Web portions 14 forming the bursting grooves 10- are disposed between the thickened or reinforced portions 15 in such a manner that they form a part of the boundary of the inner diameter which in this case is polygonal.
  • a cartridge for firing over short distances comprising a one-piece structure of plastic material and in cluding a substantially tubular cartridge case, a. bullet portion and a substantially tubular neck portion connecting the cartridge case with the bullet portion, propellant powder within said cartridge case, a bottom piece closing the rearward end of said cartridge case, means effectively constituting between the rearward end of the bullet ,portion and the forward end of the neck portion a separating zone where the bullet portion separates from the neck portion upon firing of the cartridge, and means in said neck portion effectively constituting a plurality of throughout their lengths and quickly release the gases produced by the ignition of said propellant powder for equalizing the pressure within said cartridge case and outside said cartridge case immediately after said bullet portion separates from said neck portion.
  • a cartridge for firing over short distances including an abutment shoulder being provided between said neck portion and said cartridge case, the latter being of larger diameter than said neck portion,
  • the bursting grooves extending by way of said abutment shoulder at least over a substantial portion of the cartridge case.
  • a cartridge for firing over short distances according to claim 1, wherein the bursting grooves are constituted by relatively thinwalled web portions between adjacent reinforced material portions.
  • a practice cartridge according to claim 1 wherein said bursting grooves extend forwardly to the separating zone to produce a plurality of forwardly unconnected strips upon firing of the cartridge.
  • one of the two parts consisting of the neck portion and the cartridge case has reinforced material portions and adjacent thin-Walled web portions defining said bursting grooves and forming an interior polygonal cross-sectional shape with the reinforced portions constituting the polygon sides and the web portions constituting flattened 01f end faces of the poly on.
  • a cartridge for firing over short distances including an abutment shoulder being provided between said neck portion and said cartridge case, the latter being of larger diameter than said neck portion,
  • the bursting grooves extending by way of said abutment shoulder at least over a portion of the cartridge case.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US423785A 1964-02-28 1965-01-06 Cartridge Expired - Lifetime US3339487A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED43751A DE1232046B (de) 1964-02-28 1964-02-28 Patrone zum Schiessen auf kurze Entfernungen

Publications (1)

Publication Number Publication Date
US3339487A true US3339487A (en) 1967-09-05

Family

ID=7047835

Family Applications (1)

Application Number Title Priority Date Filing Date
US423785A Expired - Lifetime US3339487A (en) 1964-02-28 1965-01-06 Cartridge

Country Status (8)

Country Link
US (1) US3339487A (en)van)
BE (1) BE660327A (en)van)
DE (1) DE1232046B (en)van)
DK (1) DK128756B (en)van)
ES (1) ES310714A1 (en)van)
FR (1) FR1425101A (en)van)
GB (1) GB1028951A (en)van)
NL (1) NL6502472A (en)van)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641935A (en) * 1969-06-23 1972-02-15 Dynamit Nobel Ag Pressure cartridge containing solid fuel propellant charge
US3706256A (en) * 1968-06-26 1972-12-19 Andrew J Grandy Method of making ammunition
US3732826A (en) * 1971-04-09 1973-05-15 E Johnson Cartridge
US4391199A (en) * 1979-08-10 1983-07-05 Lionel Morin Safe ammunition for exhibition and target shooting
US5048423A (en) * 1988-12-27 1991-09-17 Loral Aerospace Corp. Cartridge case for telescoped ammunition round
EP0538733A1 (de) * 1991-10-25 1993-04-28 Wilhelm Brenneke Kg Fabrikation Von Jagdgeschossen Verwendung einer Kartusche zum Laden und Abschiessen von Diabolos
US7059251B1 (en) * 2004-09-09 2006-06-13 The United States Of America As Represented By The Secretary Of The Army Propelling charge support for a mortar cartridge
US20100282112A1 (en) * 2009-05-06 2010-11-11 Vin Battaglia Spiral case ammunition
US20150047527A1 (en) * 2011-01-14 2015-02-19 Pcp Tactical, Llc Frangible portion for a high strength polymer-based cartridge casing and manufacturing method
WO2019036491A1 (en) * 2017-08-14 2019-02-21 Mac Llc AMMUNITION WITH ENERGY ABSORPTION CHARACTERISTICS
US10794671B2 (en) 2011-01-14 2020-10-06 Pcp Tactical, Llc Polymer-based cartridge casing for subsonic ammunition
US11448491B2 (en) 2018-07-30 2022-09-20 Pcp Tactical, Llc Polymer cartridge with enhanced snapfit metal insert and thickness ratios
US11543218B2 (en) * 2019-07-16 2023-01-03 True Velocity Ip Holdings, Llc Polymer ammunition having an alignment aid, cartridge and method of making the same
US12247818B2 (en) 2018-07-30 2025-03-11 Pcp Tactical, Llc Polymer ammunition article designed for use across a wide temperature range
US12247819B2 (en) 2010-07-30 2025-03-11 Pcp Tactical, Llc Two-piece insert and/or flash tube for polymer ammunition cartridges

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE508650C2 (sv) * 1994-03-10 1998-10-26 Bofors Ab Sätt att vid patronerad stridsammunition minska skadeverkan i omgivningen vid extrema tryckstegringar i ammunitionens drivladdningar samt patronhylsa för stridsammunition

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1269442A (fr) * 1960-09-02 1961-08-11 Dynamit Nobel Ag Cartouche d'exercice en matière synthétique
US3146712A (en) * 1960-04-16 1964-09-01 Dynamit Nobel Ag Target practice ammunition of thermoplastic material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE341991C (en)van) *
DE732216C (de) * 1940-02-11 1943-02-25 Heinrich Krieghoff Fuer Feuerwaffen, insbesondere selbsttaetige Feuerwaffen, bestimmte Patrone
DE958182C (de) * 1943-10-08 1957-02-14 Paul Kurt Johannes Grossfuss Patronenhuelse mit OEffnungen in der Huelsenwand
DE1165457B (de) 1959-04-25 1964-03-12 Lars Ringdal Scheibenstand-Patrone

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146712A (en) * 1960-04-16 1964-09-01 Dynamit Nobel Ag Target practice ammunition of thermoplastic material
FR1269442A (fr) * 1960-09-02 1961-08-11 Dynamit Nobel Ag Cartouche d'exercice en matière synthétique

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3706256A (en) * 1968-06-26 1972-12-19 Andrew J Grandy Method of making ammunition
US3641935A (en) * 1969-06-23 1972-02-15 Dynamit Nobel Ag Pressure cartridge containing solid fuel propellant charge
US3732826A (en) * 1971-04-09 1973-05-15 E Johnson Cartridge
US4391199A (en) * 1979-08-10 1983-07-05 Lionel Morin Safe ammunition for exhibition and target shooting
US5048423A (en) * 1988-12-27 1991-09-17 Loral Aerospace Corp. Cartridge case for telescoped ammunition round
EP0538733A1 (de) * 1991-10-25 1993-04-28 Wilhelm Brenneke Kg Fabrikation Von Jagdgeschossen Verwendung einer Kartusche zum Laden und Abschiessen von Diabolos
US7059251B1 (en) * 2004-09-09 2006-06-13 The United States Of America As Represented By The Secretary Of The Army Propelling charge support for a mortar cartridge
US20100282112A1 (en) * 2009-05-06 2010-11-11 Vin Battaglia Spiral case ammunition
WO2010129781A1 (en) * 2009-05-06 2010-11-11 Vin Battaglia Spiral case ammunition
US8408137B2 (en) 2009-05-06 2013-04-02 Vin Battaglia Spiral case ammunition
US12247819B2 (en) 2010-07-30 2025-03-11 Pcp Tactical, Llc Two-piece insert and/or flash tube for polymer ammunition cartridges
US20150047527A1 (en) * 2011-01-14 2015-02-19 Pcp Tactical, Llc Frangible portion for a high strength polymer-based cartridge casing and manufacturing method
US20160169641A1 (en) * 2011-01-14 2016-06-16 Pcp Tactical, Llc Frangible portion for a high strength polymer-based cartridge casing and manufacturing method
US10794671B2 (en) 2011-01-14 2020-10-06 Pcp Tactical, Llc Polymer-based cartridge casing for subsonic ammunition
US11353299B2 (en) 2011-01-14 2022-06-07 Pcp Tactical, Llc Polymer-based cartridge casing for subsonic ammunition
US11976911B2 (en) 2011-01-14 2024-05-07 Pcp Tactical, Llc Polymer-based cartridge casing for subsonic ammunition
US9261335B2 (en) * 2011-01-14 2016-02-16 Pcp Tactical, Llc Frangible portion for a high strength polymer-based cartridge casing and manufacturing method
WO2019036491A1 (en) * 2017-08-14 2019-02-21 Mac Llc AMMUNITION WITH ENERGY ABSORPTION CHARACTERISTICS
US11448491B2 (en) 2018-07-30 2022-09-20 Pcp Tactical, Llc Polymer cartridge with enhanced snapfit metal insert and thickness ratios
US12163770B2 (en) 2018-07-30 2024-12-10 Pcp Tactical, Llc Polymer cartridge with enhanced snapfit metal insert and thickness ratios
US12247818B2 (en) 2018-07-30 2025-03-11 Pcp Tactical, Llc Polymer ammunition article designed for use across a wide temperature range
US11543218B2 (en) * 2019-07-16 2023-01-03 True Velocity Ip Holdings, Llc Polymer ammunition having an alignment aid, cartridge and method of making the same

Also Published As

Publication number Publication date
ES310714A1 (es) 1965-12-01
DE1232046B (de) 1967-01-05
FR1425101A (fr) 1966-01-14
BE660327A (en)van) 1965-06-16
GB1028951A (en) 1966-05-11
NL6502472A (en)van) 1965-08-30
DK128756B (da) 1974-06-24

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