Abrégé

a) of the bolt bearing raceway groove defines a non-constant height (H(y)) between upper and lower guide edges (18, 19) that varies as a function of the distance (y) from the firing chamber body (16), said profile comprising a velocity control portion with a slope (P) configured to impart a braking effect on the bolt during its sliding movement to slow down the rate of fire.

Classes IPC  ?

• F41A 3/66 - Boîtes ou châssis de culasse; Carcasses
• F41A 3/64 - Montage de blocs de culasse; Accessoires pour les blocs de culasse ou pour leur montage
• F41A 3/50 - Verrous à genouillère, p.ex. à commande par leviers coudés
• F41A 3/78 - Amortisseurs ou dispositifs récupérateurs pour les blocs de culasse

Abrégé

The mechanism comprises a main frame (1) and its extension (1′), which accommodate a barrel (21) with fixed mounting, a mobile bolt (22) and its guiding pin ensemble (66) and main spring (67) moving in the main frame (1), a mobile mass (34) and its assembly of guiding pin (60), push plate (61) and return spring (62), and a mobile mass catch sear (42) and its spring (7). The mobile mass pivots from a first position under the barrel to a downward position in reaction to the backward movement of the mobile bolt. The placement of the mobile mass in front of the chamber directs counteracting forces down on the barrel to prevent muzzle climb during operation.

Classes IPC  ?

• F41A 3/38 - Mécanismes à verrous semi-libres, c. à d. à verrous montés mobiles sur le bloc de culasse, ou sur le tube de l'arme ou la boîte de culasse munis d'éléments de verrouillage basculants, p.ex. de leviers ou de volets pivotants

Abrégé

The invention relates to a sighting device containing at least one self-luminous light source and at least one element made of a light-guiding and/or light-collecting material. Preferably, the self-luminous light source is embodied as a tube or ring and this light source is arranged in at least a portion of the length of the tube or ring, or along its entirety, and most preferably uses a tritium gas-containing element.

Classes IPC  ?

• G01C 3/00 - Mesure des distances dans la ligne de visée; Télémètres optiques
• F41G 1/32 - Appareils de visée de nuit, p.ex. luminescents
• F41G 1/34 - Appareils de visée de nuit, p.ex. luminescents combinés à une source lumineuse, p.ex. projecteur
• F41G 1/42 - Appareils de visée à tube; Montants de hausse

Abrégé

The invention comprises improved designs in a recoil control device comprising a bolt and slider for use in a variety of firearms. In one embodiment, the bolt and slider are articulated so that the displacement of the bolt results in a force component accompanying the slider as it moves along a slider path that traverses a line formed by a linear firing axis of the barrel of the firearm. The slider can have additional structural and functional features, including stabilizing features, vibrational damping elements, elements of the fire control mechanism, and devices to manage the peak impulse of the slider movement as it contacts a base or terminus point.

Classes IPC  ?

• F41A 3/10 - Culasses à bloc ou à coin, c. à d. dont le mouvement principal d'ouverture est transversal à l'axe du tube de l'arme avec un mécanisme à bloc de culasse coulissant, p.ex. verticalement

Abrégé

The mechanism comprises a main frame (1) and its extension (1′), which accommodate a barrel (21) with fixed mounting, a mobile bolt (22) and its guiding pin ensemble (66) and main spring (67) moving in the main frame (1), a mobile mass (34) and its assembly of guiding pin (60), push plate (61) and return spring (62), and a mobile mass catch sear (42) and its spring (7). The mobile mass pivots from a first position under the barrel to a downward position in reaction to the backward movement of the mobile bolt. The placement of the mobile mass in front of the chamber directs counteracting forces down on the barrel to prevent muzzle climb during operation.

Classes IPC  ?

• F41A 3/50 - Verrous à genouillère, p.ex. à commande par leviers coudés