EP 0437675 B1 19950111 - Grooves for a gun barrel.
Title (en)
Grooves for a gun barrel.
Title (de)
Waffenrohr mit optimiertem Drallverlauf.
Title (fr)
Rayures pour le tube d'une arme à feu.
Publication
Application
Priority
DE 4001130 A 19900117
Abstract (en)
[origin: EP0437675A2] To improve the lifetime of known gun barrels and to improve the ballistics of a projectile fired by them, according to the invention a gun barrel having optimised rifling is proposed. <??>An edge-force trend (R(x)) according to the invention, obtained from this rifling and taken along the gun barrel (x), exhibits an essentially trapezoidal trend, with a markedly reduced edge-force maximum in comparison with such edge-force trends of conventional riflings (constant rifling: dot-and-dash line; parabolic rifling: dashed line). <IMAGE>
IPC 1-7
IPC 8 full level
F41A 21/18 (2006.01)
CPC (source: EP US)
F41A 21/18 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB LI SE
DOCDB simple family (publication)
EP 0437675 A2 19910724; EP 0437675 A3 19920506; EP 0437675 B1 19950111; DE 4001130 A1 19910718; DE 59008253 D1 19950223; US 5077926 A 19920107
DOCDB simple family (application)
EP 90118945 A 19901004; DE 4001130 A 19900117; DE 59008253 T 19901004; US 64178291 A 19910116