Propellant case for an ammunition cartridge

• US 6,131,519 A
• Filed: 11/20/1998
• Issued: 10/17/2000
• Est. Priority Date: 11/22/1997
• Status: Expired due to Fees

• Current Assignee: Rheinmetall W & M GmbH (Rheinmetall AG)
• Original Assignee: Rheinmetall W & M GmbH (Rheinmetall AG)
• Inventors: Thiesen, Stefan, Jungbluth, Dieter
• Primary Examiner(s): Price, Thomas
• Application Number:
  US09/196,189
• Time in Patent Office: 697 Days
• Field of Search: 102/469, 102/470, 102/430, 102/431, 102/432, 102/433, 102/434, 102/700, 102/466, 102/467, 102/439
• US Class Current: 102/469
• CPC Class Codes: F42B 5/285 formed by assembling several elements

Abstract

A propellant case includes a case sleeve having a longitudinal axis; a case bottom including a case bottom base; and an axially extending case bottom dome having a socket for supporting a primer therein. The case bottom base is releasably attached to the case bottom dome, while the case bottom dome is permanently attached to the case sleeve, whereby upon removing the case bottom from the case bottom dome, a connection between the case bottom dome and the case sleeve is preserved.

Claims

1. A propellant case comprising

(a) a case sleeve having a longitudinal axis;

(b) a case bottom including

(1) a case bottom base; and

(2) an axially extending case bottom dome including a socket for supporting a primer therein;

(c) first connecting means for releasably attaching said case bottom base to said case bottom dome;

(d) second connecting means for permanently attaching said case bottom dome to said case sleeve, whereby upon removing said case bottom from said case bottom dome, a connection between said case bottom dome and said case sleeve is preserved; and

(e) tool-receiving means provided in said case bottom dome for accommodating a tool to hold said case bottom dome during connection of said case bottom base to and removal thereof from said case bottom dome;

said tool-receiving means comprising bore holes extending radially outwardly from said socket.

2. The propellant case a defined in claim 1, wherein said first connecting means comprises a screw connection.

3. A propellant case comprising

(a) a case sleeve having a longitudinal axis;

(b) a case bottom including

(1) a case bottom base; and

(2) an axially extending case bottom dome including

(i) a socket for supporting a primer therein; and

(ii) a laterally projecting collar;

(c) first connecting means for releasably attaching said case bottom base to said case bottom dome;

(d) second connecting means for permanently attaching said case bottom dome to said case sleeve, whereby upon removing said case bottom from said case bottom dome, a connection between said case bottom dome and said case sleeve is preserved; and

(e) a spring holding said case sleeve against said collar and securing means for supporting said spring on said case bottom dome.

4. The propellant case as defined in claim 3, wherein said securing means comprises a securing ring held in said case bottom dome and engaging said flat spring.

5. The propellant case as defined in claim 3, wherein said case bottom base is provided with a recess oriented toward said case bottom dome and accommodating said collar;

said case bottom base having an outwardly oriented surface adjoining said recess;

said collar having a radial surface oriented outwardly from said case bottom base;

said outwardly oriented surface of said case bottom base and said radial surface of said collar being in a flush, adjoining relationship.