Cartridge case

Claim 2

A casing comprising a hollow elongated casing portion having an inwardly diverging open end portion with a passageway communicating with the hollow interior of the remainder of said casing portion, and a fitting means for securing said casing portion arranged at the open end portion of said casing portion, said fitting means including an internal section, at least a portion of which is constructed to abut the interior of said casiNg portion and another portion of which extends through the passageway in said open end portion, and a separate external section, at least a portion of which is constructed to abut the exterior of the open end portion of said casing portion and another portion of which abuts the portion of the inner section extending through the passageway, said internal and external sections having means for operatively joining said sections in the manner of a snap connection, at least one of said sections having at least an elastic portion constructed to be temporarily deformed in forming said snap connection and to spring back to a substantially undeformed state upon completion of the formation of said snap connection.

Claim 3

Casing according to claim 1, wherein the end of the casing is operatively held between the internal and external sections by a form-locking connection.

Claim 4

Casing according to claim 2, wherein the internal and external section and the end of the pipe are formed, in the zone of the form-locking connection, substantially with truncated cone surfaces having a generating angle of about 45* with respect to a longitudinal axis of the casing.

Claim 5

Casing according to claim 3, wherein the external section substantially annularly surrounds the internal section.

Claim 6

Casing according to claim 2, wherein, in the zone of the form-locking connection, at least one of the sections is provided with groove means extending substantially in the peripheral direction of the pipe.

Claim 7

Casing according to claim 5, wherein the external section substantially annularly surrounds the internal section.

Claim 8

Casing according to claim 6, wherein the internal and external sections and the end of the pipe are formed, in the zone of the form-locking connection, substantially with truncated cone surfaces having a generating angle of about 45* with respect to a longitudinal axis of the casing.

Claim 9

Casing according to claim 2, wherein the casing is a shot cartridge case, and the internal section is provided with primer cap support means and a substantially axial flash hole.

Claim 10

Casing according to claim 8, wherein the internal and external sections and the end of the pipe are formed, in the zone of the form-locking connection, substantially with truncated cone surfaces having a generating angle of about 45* with respect to a longitudinal axis of the casing.

Claim 11

Casing according to claim 9, wherein the external section substantially annularly surrounds the internal section.

Claim 12

Casing according to claim 10, wherein, in the zone of the form-locking connection, at least one of the sections is provided with groove means extending substantially in the peripheral direction of the pipe.

Claim 13

Casing according to claim 1, wherein the end of the casing is operatively held between the internal and external sections by a frictional connection.

Claim 14

Casing according to claim 12, wherein the internal and external sections and the end of the pipe are formed, in the zone of the frictional connection, substantially with truncated cone surfaces having a generating angle of about 45* with respect to a longitudinal axis of the casing.

Claim 15

Casing according to claim 13, wherein the external section substantially annularly surrounds the internal section.

Claim 16

Casing according to claim 12, wherein, in the zone of the frictional connection, at least one of the sections is provided with groove means extending substantially in the peripheral direction of the pipe.

Claim 17

Casing according to claim 15, wherein, in the zone of the frictional connection, at least one of the sections is provided with groove means extending substantially in the peripheral direction of the pipe.

Claim 18

Casing according to claim 15, wherein the internal and external sections and the end of the pipe are formed, in the zone of the frictional connection, substantially with truncated cone surfaces having a generating angle of about 45* with respect to a longitudinal axis of the casing.

Claim 19

Casing according to claim 17, wherein the external section substantially annularly surrounds the internal section.

Claim 20

Casing according to claim 12, wherein the casing is a shot cartridge case, and the internal section is provided with primer cap support means and a substantially axial flash hole.

Claim 21

Casing according to claim 19, wherein the external section substantially annularly surrounds the internal section.

Claim 22

Casing according to claim 20, wherein the internal and external sections and the end of the pipe are formed, in the zone of the frictional connection, substantially with truncated cone surfaces having a generating angle of about 45* with respect to a longitudinal axis of the casing.

Claim 23

Casing according to claim 1, wherein the external section substantially annularly surrounds the internal section.

Claim 24

Casing according to claim 22, wherein the end of the casing is operatively held between the internal and external sections by a form-locking connection.

Claim 25

Casing according to claim 22, wherein the end of the casing is operatively held between the internal and external sections by a frictional connection.

Claim 26

Casing according to claim 1, wherein the end of the casing is operatively held between the internal and external sections by form-locking and frictional connections.

Claim 27

A shot cartridge casing comprising a hollow cylindrical casing portion having a substantially truncated conical end with a passageway communicating with the hollow interior of the remainder of said casing portion, and a fitting means for securing said casing portion arranged at the truncated conical end of said casing portion, said fitting means including an internal section having a hollow interior for receiving a primer cap and for providing an axial flash hole, a portion of the exterior of said internal section arranged in abutting relation to the interior of said casing portion and the remaining portion of the exterior of said internal section adapted to extend through the passageway in said truncated conical end of said casing portion, and an external section annularly surrounding and frictionally contacting said truncated conical end of said casing portion and the portion of said internal section extending therethrough, said internal and external sections being operatively joined in the manner of a snap connection, at least one of said sections having at least an elastic portion constructed to be temporarily deformed in forming said snap connection and to spring back to a substantially undeformed state upon completion of the formation of said snap connection.

Claim 28

A shot cartridge casing comprising a hollow cylindrical casing portion having a substantially truncated conical end with a passageway communicating with the hollow interior of the remainder of said casing portion, and a fitting means for securing said casing portion arranged at the truncated conical end of said casing portion, said fitting means including an internal section having a hollow interior for receiving a primer cap and for providing an axial flash hole, a portion of the exterior of said internal section arranged in abutting relation to the interior of said casing portion and the remaining portion of the exterior of said internal section adapted to extend through the passageway in said truncated conical end of said casing portion, and an external section annularly surrounding and frictionally contacting said truncated conical end of said casing portion and the portion of said internal section extending therethrough, said internal and external sections being operatively joined in the manner of a snap connection, at least one of said sections having at least an elastic portion constructed to be temporarily deformed in forming said snap connection and to spring back to a substantially undeformed state upon completion of the formation of said snap connection.

Claim 29

A casing according to claim 26, wherein the external portion of said internal section extending through the passageway in said casing portion is elastic and provided with an expanded ridge which corresponds to a recess in said external section.