US12540784 - Break-barrel firearm with mechanical extraction assembly

The patent describes a break-barrel firearm featuring a tilting barrel group that can engage and disengage from a housing seat, equipped with a mechanical extraction assembly. This assembly includes an extractor device that can operate in two modes: one for fully ejecting spent casings and another for partially expelling unexploded ammunition.

Claim 1

1 . A firearm comprising at least: a frame defining a housing seat for a barrel group; and a barrel group comprising at least one barrel with longitudinal development axis (A), the barrel group being mounted in a tilting manner with respect to the frame between a position in which the barrel group engages the housing seat and a position in which the barrel group is rotated with respect to the housing seat, a frame defining a housing seat for a barrel group; and a barrel group comprising at least one barrel with longitudinal development axis (A), the barrel group being mounted in a tilting manner with respect to the frame between a position in which the barrel group engages the housing seat and a position in which the barrel group is rotated with respect to the housing seat, wherein the barrel group comprises, at least one extractor device associated with the at least one barrel of the barrel group and configured to selectively operate in a first mode in which it integrally ejects a casing of an exploded ammunition and in a second mode in which it accompanies part of an unexploded ammunition in partially exiting from the at least one barrel, and an ejection trigger device configured to drive the at least one extractor device so as to selectively operate in the first ejection mode, wherein the at least one extractor device comprises: an engagement element configured to engage with an ammunition inserted in the at least one barrel and housed in a structure of the barrel group according to an elastic preload condition, in a sliding manner in parallel to the longitudinal development axis (A); and a retention element housed in the structure of the barrel group movably between a constraint configuration with the engagement element, in which the retention element maintains the engagement element in the elastic preload condition, and a release configuration of the engagement element, in which the engagement element is free to slide in parallel to the longitudinal development axis (A) under the action of the elastic preload, wherein the engagement element comprises a slot and the ejection trigger device is configured to bring the retention element into the constraint configuration with the engagement element by bringing the retention element to engage the slot of the engagement element, and wherein the extractor device comprises a clamp housed in the structure of the barrel group and configured to cooperate with the retention element to maintain it in the constraint configuration with the engagement element while the barrel group is rotated away from the housing seat. at least one extractor device associated with the at least one barrel of the barrel group and configured to selectively operate in a first mode in which it integrally ejects a casing of an exploded ammunition and in a second mode in which it accompanies part of an unexploded ammunition in partially exiting from the at least one barrel, and an ejection trigger device configured to drive the at least one extractor device so as to selectively operate in the first ejection mode, wherein the at least one extractor device comprises: an engagement element configured to engage with an ammunition inserted in the at least one barrel and housed in a structure of the barrel group according to an elastic preload condition, in a sliding manner in parallel to the longitudinal development axis (A); and a retention element housed in the structure of the barrel group movably between a constraint configuration with the engagement element, in which the retention element maintains the engagement element in the elastic preload condition, and a release configuration of the engagement element, in which the engagement element is free to slide in parallel to the longitudinal development axis (A) under the action of the elastic preload, wherein the engagement element comprises a slot and the ejection trigger device is configured to bring the retention element into the constraint configuration with the engagement element by bringing the retention element to engage the slot of the engagement element, and wherein the extractor device comprises a clamp housed in the structure of the barrel group and configured to cooperate with the retention element to maintain it in the constraint configuration with the engagement element while the barrel group is rotated away from the housing seat.

Google Patents

https://patents.google.com/patent/US12540784

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12540784