US2862446A - Cartridge - Google Patents

Cartridge Download PDF

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Publication number
US2862446A
US2862446A US528256A US52825655A US2862446A US 2862446 A US2862446 A US 2862446A US 528256 A US528256 A US 528256A US 52825655 A US52825655 A US 52825655A US 2862446 A US2862446 A US 2862446A
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US
United States
Prior art keywords
projectile
case
cartridge
partition wall
moulded
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
US528256A
Inventor
Ringdal Lars
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.)
KUPAG KUMSTSTOFF PATENT VERWAL
Kupag Kumststoff-Patent-Verwaltungs A-G
Original Assignee
KUPAG KUMSTSTOFF PATENT VERWAL
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Publication date
Application filed by KUPAG KUMSTSTOFF PATENT VERWAL filed Critical KUPAG KUMSTSTOFF PATENT VERWAL
Priority to US528256A priority Critical patent/US2862446A/en
Application granted granted Critical
Publication of US2862446A publication Critical patent/US2862446A/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

Definitions

  • the present invention relates to an ammunition cartridge intended to be used in rifles, shot-guns, automatic guns or other types of arms.
  • the invention relates to a cartridge of the type comprising a base member having a tubular extention and a case integrally moulded from elastic, plastic material such as polyvinyl chloride or polyethylene and telescopically enclosing the said tubular extension.
  • One object of the invention is to adapt a cartridge of the type described for use as live ammunition by particularly constructing the front end of the case in such a way that a secure anchoring of a projectile in the said front end is provided.
  • the said case is closed at its front end by a radial partition Wall which is moulded integrally with the case and has such a thickness that it may serve as a reinforcement of the front end of the case and as an anchoring for a projectile secured at the said front end.
  • the projectile is moulded fast in the front end at the same time as the latter is m-ounded or cast in one piece.
  • the rear end of the envelope of the projectile is bent or flanged and embedded in the partition wall so as to ob tain a secure and tight' connection with the case.
  • the projectile is tightly enclosed by the walls of the front end of the case, and that as known per se the case may be provided with a bead or flange which engages a corresponding groove in the projectile to further secure the connection between the case and the projectile.
  • Fig. 1 is a longitudinal section of a cartridge according to the invention.
  • Fig. 2 is an enlarged section of the front end of the cartridge shown in Fig. 1.
  • Fig. l 1 designates a cartridge base which may consist of metal and which has a tubular extension 1a and a recess 2 for accommodating a percussion cap.
  • a case 3 which has the shape of a tube closed at the front end, is connected with the base by being slided telescopically 2,862,446 Patented Dec. 2, 1958 over the tubular extension 1a.
  • 6 designates a radial partition wall which separates the rear portion of the case 3 from a front portion in which the projectile 7 is secured.
  • the projectile 7 is moulded or cast in the front end 3' of the case by being moulded together with the case at the same time as the latter is moulded in one piece.
  • the front end of the case is provided with a head or flange *8, which engages a corresponding groove in the projectile.
  • the rear end 9 of the envelope of the projectile is bent in, as shown, and moulded into i. e. embedded in the partition wall 6, so that the projectile is secured and tightly connected with the case.
  • the partition wall 6 may at its circumference suitably be weakened for example by score lines, notches or the like (not shown), so that it may be easily blown out together with the projectile.
  • partition wall in addition to serve as an anchoring for the envelope of the projectile also serves as a bracing of the forward end of the case 3.
  • a cartridge comprising a 'base member, a percussion cap in the base member, a case member integrally moulded from elastic, plastic material connected with said base member with a tight tit, a radial partition wall provided as an integral part of said case member at the front end thereof, and a projectile comprising an envelope secured in front of said partition wall, said partition wall having a thickness so that it may serve as an anchoring for said envelope of the projectile, and the rear end of said envelope being flanged and embedded in said partition wall.
  • a cartridge as set forth in claim 1, wherein said partition wall at its circumference has weakening notches.

Description

Dec. 2, 1958 LRlNGDAL I 2,862,446
' CARTRIDGE 4 Filed Aug. 15, 1955 FlG.l
INVENTOR LARS RINGDAL Attg.
United States Patent CARTRIDGE Lars Ringdal, Oslo, Norway, assignor to Kupag Kumststoif-Patent-Verwaltungs A.-G., Zug, Switzerland Application August 15, 1955, Serial No. 528,256
4 Claims. c1. 102 3s The present invention relates to an ammunition cartridge intended to be used in rifles, shot-guns, automatic guns or other types of arms.
More particularly the invention relates to a cartridge of the type comprising a base member having a tubular extention and a case integrally moulded from elastic, plastic material such as polyvinyl chloride or polyethylene and telescopically enclosing the said tubular extension.
One object of the invention is to adapt a cartridge of the type described for use as live ammunition by particularly constructing the front end of the case in such a way that a secure anchoring of a projectile in the said front end is provided.
According to one feature of the invention the said case is closed at its front end by a radial partition Wall which is moulded integrally with the case and has such a thickness that it may serve as a reinforcement of the front end of the case and as an anchoring for a projectile secured at the said front end.
According to a further feature of the invention the projectile is moulded fast in the front end at the same time as the latter is m-ounded or cast in one piece.
According to a still further feature of the invention the rear end of the envelope of the projectile is bent or flanged and embedded in the partition wall so as to ob tain a secure and tight' connection with the case.
It will of course'be understood that the projectile is tightly enclosed by the walls of the front end of the case, and that as known per se the case may be provided with a bead or flange which engages a corresponding groove in the projectile to further secure the connection between the case and the projectile.
Other features of the invention will appear from the following description with reference to the accompanying drawing, in which:
Fig. 1 is a longitudinal section of a cartridge according to the invention.
"Fig. 2 is an enlarged section of the front end of the cartridge shown in Fig. 1.
In Fig. l, 1 designates a cartridge base which may consist of metal and which has a tubular extension 1a and a recess 2 for accommodating a percussion cap. A case 3 which has the shape of a tube closed at the front end, is connected with the base by being slided telescopically 2,862,446 Patented Dec. 2, 1958 over the tubular extension 1a. 'It has been shown that the connection between the members may be sufficiently secured when the two members are pressed together with a a certain friction, but for further securing of the conneca soft elastic material such as polyethylene or polyvinyl chloride. 6 designates a radial partition wall which separates the rear portion of the case 3 from a front portion in which the projectile 7 is secured. In the embodiment shown, the projectile 7 is moulded or cast in the front end 3' of the case by being moulded together with the case at the same time as the latter is moulded in one piece. For securing the projectile the front end of the case is provided with a head or flange *8, which engages a corresponding groove in the projectile. The rear end 9 of the envelope of the projectile is bent in, as shown, and moulded into i. e. embedded in the partition wall 6, so that the projectile is secured and tightly connected with the case. The partition wall 6 may at its circumference suitably be weakened for example by score lines, notches or the like (not shown), so that it may be easily blown out together with the projectile.
It will be seen that the partition wall in addition to serve as an anchoring for the envelope of the projectile also serves as a bracing of the forward end of the case 3.
I claim:
1. A cartridge comprising a 'base member, a percussion cap in the base member, a case member integrally moulded from elastic, plastic material connected with said base member with a tight tit, a radial partition wall provided as an integral part of said case member at the front end thereof, and a projectile comprising an envelope secured in front of said partition wall, said partition wall having a thickness so that it may serve as an anchoring for said envelope of the projectile, and the rear end of said envelope being flanged and embedded in said partition wall.
2. A cartridge as set forth in claim 1 wherein said partition wall at its circumference has weakening score lines.
3. A cartridge as set forth in claim 1, wherein said partition wall at its circumference =has weakening notches.
4. A cartridge as set forth in claim 1 wherein weakening means are provided in said partition wall at its circumference.
References Cited in the file of this patent UNITED STATES PATENTS 2,440,568 Arter Apr. 27, 1948 2,476,291 Garber July 19, 1949 2,654,319 Roske Oct. 6, 1953 FOREIGN PATENTS 1,094,753 France Dec. 8, 1954
US528256A 1955-08-15 1955-08-15 Cartridge Expired - Lifetime US2862446A (en)

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US528256A US2862446A (en) 1955-08-15 1955-08-15 Cartridge

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Cited By (133)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3060856A (en) * 1959-03-02 1962-10-30 Plastic Training Products Comp Practice round of ammunition
US3078800A (en) * 1959-09-02 1963-02-26 Prospection & Inventions Munitions
US3146712A (en) * 1960-04-16 1964-09-01 Dynamit Nobel Ag Target practice ammunition of thermoplastic material
US3283720A (en) * 1965-06-15 1966-11-08 Remington Arms Co Inc Molded plastic shotshell
US3485170A (en) * 1967-11-29 1969-12-23 Remington Arms Co Inc Expendable case ammunition
US4365559A (en) * 1979-04-17 1982-12-28 Eric Gruaz Munition round for firearms
WO1983000213A1 (en) * 1981-07-06 1983-01-20 Palcher, Joseph, J. Ammunition casing and bullet
US4565131A (en) * 1984-09-17 1986-01-21 Buchner Delmer B Cartridge assembly
US4593621A (en) * 1984-09-17 1986-06-10 Buchner Delmer B Cartridge assembly
WO1989007496A1 (en) * 1988-02-09 1989-08-24 Vatsvog Marlo K Composite cartridge for high velocity rifles and the like
US5033386A (en) * 1988-02-09 1991-07-23 Vatsvog Marlo K Composite cartridge for high velocity rifles and the like
AU621352B2 (en) * 1988-02-09 1992-03-12 Amtech Overseas, Inc. Composite cartridge for high velocity rifles and the like
US5259288A (en) * 1988-02-09 1993-11-09 Vatsvog Marlo K Pressure regulating composite cartridge
WO1995013516A1 (en) * 1993-11-08 1995-05-18 Amtech Overseas, Inc. Pressure-regulating composite cartridge with gas expansion zone
US5708231A (en) * 1996-10-17 1998-01-13 Sigma Research, Inc. Delayed release cartridge for a firearm
WO2003036222A1 (en) * 2001-10-22 2003-05-01 Armtec Defense Products Co. Ammunition round assembly with combustible cartridge case
US6752084B1 (en) 1999-01-15 2004-06-22 Amtech, Inc. Ammunition articles with plastic components and method of making ammunition articles with plastic components
US20050081704A1 (en) * 2003-05-29 2005-04-21 Nabil Husseini Ammunition articles and method of making ammunition articles
US20050257711A1 (en) * 1999-01-15 2005-11-24 Natec, Inc. A Cartridge Casing Body And An Ammunition Article Having A Cartridge Casing Body Wherein The Cartridge Casing Body Is Plastic, Ceramic, Or A Composite Material
US7363861B2 (en) 2004-08-13 2008-04-29 Armtec Defense Products Co. Pyrotechnic systems and associated methods
US20090044717A1 (en) * 1999-01-15 2009-02-19 Development Capital Managment Company base for a cartridge casing body for an ammunition article, a cartridge casing body and an ammunition article having such base, wherein the base is made from plastic, ceramic, or a composite material
US20100275804A1 (en) * 2009-05-04 2010-11-04 Roger Blaine Trivette Plastic ammunition casing and method
US7913625B2 (en) 2006-04-07 2011-03-29 Armtec Defense Products Co. Ammunition assembly with alternate load path
US20110072996A1 (en) * 2008-06-03 2011-03-31 Diehl Bgt Defence Gmbh & Co. Kg Propellant charge
US8146502B2 (en) 2006-01-06 2012-04-03 Armtec Defense Products Co. Combustible cartridge cased ammunition assembly
US8443730B2 (en) 2011-01-14 2013-05-21 Pcp Tactical, Llc High strength polymer-based cartridge casing and manufacturing method
WO2013096848A1 (en) 2011-12-22 2013-06-27 LEMKE, Paul Polymer-based composite casings and ammunition containing the same, and methods of making and using the same
US8573126B2 (en) 2010-07-30 2013-11-05 Pcp Tactical, Llc Cartridge base and plastic cartridge case assembly for ammunition cartridge
US8763535B2 (en) 2011-01-14 2014-07-01 Pcp Tactical, Llc Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition
US8807008B2 (en) 2011-01-14 2014-08-19 Pcp Tactical, Llc Polymer-based machine gun belt links and cartridge casings and manufacturing method
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US8869702B2 (en) * 2011-01-14 2014-10-28 Pcp Tactical, Llc Variable inside shoulder polymer cartridge
WO2014184451A1 (en) 2013-05-15 2014-11-20 Etat Français Represente Par Le Delegue General Pour L'armement Flangeless cartridge
US20150192394A1 (en) * 2014-01-09 2015-07-09 Randy R. Fritz Hollow Slug and Casing
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US9429407B2 (en) 2010-11-10 2016-08-30 True Velocity, Inc. Lightweight polymer ammunition
US9470485B1 (en) 2004-03-29 2016-10-18 Victor B. Kley Molded plastic cartridge with extended flash tube, sub-sonic cartridges, and user identification for firearms and site sensing fire control
US9506735B1 (en) 2016-03-09 2016-11-29 True Velocity, Inc. Method of making polymer ammunition cartridges having a two-piece primer insert
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USD778391S1 (en) * 2015-04-28 2017-02-07 True Velocity, Inc. Notched cartridge base insert
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US9587918B1 (en) 2015-09-24 2017-03-07 True Velocity, Inc. Ammunition having a projectile made by metal injection molding
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US9644930B1 (en) 2010-11-10 2017-05-09 True Velocity, Inc. Method of making polymer ammunition having a primer diffuser
US9835427B2 (en) 2016-03-09 2017-12-05 True Velocity, Inc. Two-piece primer insert for polymer ammunition
US9835423B2 (en) 2010-11-10 2017-12-05 True Velocity, Inc. Polymer ammunition having a wicking texturing
US9869536B2 (en) 2016-03-09 2018-01-16 True Velocity, Inc. Method of making a two-piece primer insert
US9885551B2 (en) 2010-11-10 2018-02-06 True Velocity, Inc. Subsonic polymeric ammunition
US9921017B1 (en) 2013-03-15 2018-03-20 Victor B. Kley User identification for weapons and site sensing fire control
US10041770B2 (en) 2010-11-10 2018-08-07 True Velocity, Inc. Metal injection molded ammunition cartridge
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US2476291A (en) * 1945-05-31 1949-07-19 Thomas H Garber Sealing wad
US2440568A (en) * 1946-01-02 1948-04-27 Roy C Arter Cartridge loading
US2654319A (en) * 1950-12-26 1953-10-06 Jack W Roske Sectional cartridge
FR1094753A (en) * 1955-11-08 1955-05-24

Cited By (280)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3060856A (en) * 1959-03-02 1962-10-30 Plastic Training Products Comp Practice round of ammunition
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