| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 089194000 | Blow back breech block | 9 |
| 20110168009 | Semiautomatic Rifle with Downward Ejection - A bolt assembly for a rifle is configured for recoil blowback operation and cooperation with a round of ammunition dispensed from a magazine into a firing chamber of the rifle. An extractor disposed in a lower, forward portion of the bolt assembly and an ejector disposed in an upper, forward portion of the bolt assembly further cooperate with the round of ammunition to extract a spent cartridge of the round of ammunition from the firing chamber and eject the spent cartridge downward from the firing chamber. | 07-14-2011 |
| 20130092018 | Recoil-Spring Device for a Handgun - In a recoil-spring device ( | 04-18-2013 |
| 20150308763 | PROGRESSIVE GUN SPRING RECOIL SYSTEM WITH HIGH ENERGY REBOUND - Spring-based recoil assembly for a firearm. At least some of the example systems include: a first spring that defines a first end a second end opposite the first end; a guide rod lengthwise situated within the first spring, the guide rod comprises a front-end and a back-end opposite the front-end, and the guide rod defines a back stop at the back-end; and a Belleville spring stack arranged on the guide rod, the Belleville spring stack defines first end and a second end opposite the first end, the first end abuts the first spring, and the second end abuts back stop. | 10-29-2015 |
| 20160003565 | Post Barrel Plenum Operated Gas Cycling System for Automatic Firearms - A gas buffer plenum positioned at the end of the barrel of an automatic firearm. A barrel side end cap connects the system to the barrel. A plenum tube holds one or more chamber walls and retains gas pressure within the enclosure. A target side end cap creates the final pressure chamber enclosure and is attached to the plenum tube to lock the system together. This gas buffer plenum allows a bullet to leave the barrel of the firearm before the bolt of the firearm starts to open. As the gas buffer plenum is filled with the exploding gas behind the bullet, the gas chambers build and maintain pressure that is then forced back through a hole in the plenum. The gas is forced down a gas tube or into a piston system. Depending on the configuration of the firearm, either the gas force, or the piston, strikes the bolt and cycles the firearm. The system may also be used to retrofit a gas operated firearm that uses a traditional gas block design. | 01-07-2016 |
| 20160033218 | SEMIAUTOMATIC FIREARM - A semiautomatic firearm is presented that is a combination of known parts from the AR-15 style firearms and AK-47 style firearms and new parts. The firearm includes a receiver and a removable trunnion inserted into the receiver. A barrel is threaded and pinned into the trunnion and an adjustable gas block is connected to the barrel. The gas block includes a gas bore and an adjustable member that extends into and out of the gas bore thereby adjusting the amount of gases that travel through the gas block. The firearm also includes a foregrip installed over the barrel and gas block. The foregrip has a pattern of venting openings therein and an opening that provides access to the adjustable member of the gas block as well as a top rail and a bottom rail. The combination of these components provides a semiautomatic firearm that operates smoothly while being rugged and durable. | 02-04-2016 |
| 20160076834 | CHARGING HANDLE ENGAGEMENT WITH CARRIER KEY OF FIREARM - Firearms that pull back the carrier using a charging handle and carriers and charging handles for firearms. In various embodiments, the charging handle engages the carrier at a gas key or tab thereon. In some embodiments, the charging handle has a bridge or engagement face located between a rearward end and a forward end of the charging handle. In particular embodiments, the bridge extends from a left wall to a right wall of the charging handle. In some embodiments, the bridge, the left wall, the right wall, and a top wall are all one piece and a stem of the charging handle has an open bottom between the left and right walls. In various embodiments, the bridge does not extend below the left or right wall, the tab on the gas key extends upward between the left and right walls to engage the bridge on the charging handle, or both. | 03-17-2016 |
| 20160076836 | ENHANCED GAS ADJUSTABLE BOLT CARRIER - Disclosed is bolt carrier for a firearm wherein the bolt carrier has an adjustable gas flow feature to control the amount of gas used to cycle a bolt carrier group that the bolt carrier is located in. The adjustment of the gas flow can be used to regulate the gas flow as require by changes in ammunition, addition or removal of a sound suppressor, and a desire to alter felt recoil of the firearm. The gas flow feature includes one or more gas adjustment valves that fit into the bolt carrier and that can be used to reliably and rapidly alter the gas flow in a repeatable fashion to cycle the bolt carrier group. | 03-17-2016 |
| 20160187082 | OPERATING SYSTEM UTILIZING AN ARTICULATED BOLT TRAIN TO MANAGE RECOIL FORCE - An Operational System for Firearms founded on the use of the synchronic controlled motion and cooperative interaction of elements of a Pivotally Articulated Bolt Train displacing reciprocatingly within a compliant receiver, along guiding means, disposed according to a purposely engineered Path, capable of generating anticipated adjustable dynamic reactions, and to execute mechanical actions, due to pre-calculated movements of interconnecting mechanisms within said Train members, when they pivot one relative to the other. The alternate divergent and converging motion of the Train Bolt and A Firing Mechanism Carriage subassembly, along a horizontal path, and a transverse path, modifies and splits the linear bearing of the recoil force, and generates a Gyroscopic Effect or Angular Moment, decreasing the Barrel Torque magnitude, conveying a unique tailored dynamic behavior, while performing different functions and achieving the eleven different purposes of this invention. Numerous motion parameters are adjustable to attain the distinctive recoil Dynamic reaction. | 06-30-2016 |
| 089195000 | Pistol grip magazine | 1 |
| 089196000 | Breech slide type | 1 |
| 20140216243 | Progressive Gun Spring Recoil System with High Energy Rebound - A spring/rod recoil assembly may be improved with Belleville springs arranged in combinations of nested and inverted stacks that absorb recoil impact energy while providing rebound energy to properly load cartridges from the magazine into the chamber. A firearm assembly may include a cylindrical spring, and guide rod—having stops at both ends—lengthwise situated within the cylindrical spring. The assembly may include a Belleville spring stack captured on the guide rod between a back-end stop and the cylindrical spring, with one or more stacks of nested springs and one or more stacks of inverted springs. The spring stack may be arranged to return some of the recoil energy produced during firing of the firearm, and decelerate slide velocities without damage to the firearm. Each spring has a diameter allowing it to fit within a back chamber where at least the back-end of the guide rod and spring are situated. | 08-07-2014 |
