EP 0251902 A1 19880107 - Tube breech block sealing system for guns.
Title (en)
Tube breech block sealing system for guns.
Title (de)
Abdichtung zwischen Rohr und Verschluss an Kanonen.
Title (fr)
Système d'étancheité tube-culasse pour canon.
Publication
Application
Priority
FR 8609172 A 19860625
Abstract (en)
1. A sealing system disposed between the breech (4) and the combustion chamber (2) of a weapon (1), the breech moving perpendicularly to the axis (7) of the combustion chamber so as to be positioned in front of an opening in the latter at the location of the rear face (3) of the weapon, a system consisting of an elastically deformable ring (6) having a cylindrical side surface (13) enabling it to fit into a housing (4) in the combustion chamber (2) and a front sealing surface (12) brought into contact with a portion of the breech (4) by elastic means, characterized in that the ring (6) comprises, in its side surface (13), two protrusions (9) symmetrical with each other as to the ring axis (24), associated with two cams (8) integral with the breech, which apply axially the ring in its housing (14) outwardly from the breech during a part of the breech locking motion.
Abstract (fr)
Le secteur technique de l'invention est celui de l'étanchéité entre culasse et tube pour armes de gros calibre. Un anneau d'étanchétité 6 est plaqué au cours de la fermeture sur une plaque de tir 5 au moyen de lames-ressort 10 et positionné par un jeu de cames 8 solidaires du coin de culasse 4. L'effort presseur contrôlé permet d'assurer un auto-nettoyage de la plaque de tir pendant le cycle. Le jeu de cames assure une bonne mise en place de l'anneau d'étanchétité et évite son arcboutement. Application au domaine de l'armement.
IPC 1-7
IPC 8 full level
CPC (source: EP)
Citation (search report)
- [Y] US 2998755 A 19610905 - THIERRY ROBERT J
- [Y] US 3420139 A 19690107 - BARTELS ERICH
- [A] US 3446113 A 19690527 - DARDICK DAVID
Designated contracting state (EPC)
BE CH DE GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0251902 A1 19880107; EP 0251902 B1 19891011; DE 3760768 D1 19891116; FR 2600762 A1 19871231; FR 2600762 B1 19900427
DOCDB simple family (application)
EP 87401459 A 19870625; DE 3760768 T 19870625; FR 8609172 A 19860625