Resources Contact Us Home
Dual pivoting extractors

Image Number 12 for United States Patent #7469496.

Apparatus and methods to improve the functioning of a firearm includes a simplistic, condensed extractor mechanism that is easy to manufacture. Two symmetrical extractors mounted on the sides of a sliding breech block rotate around a pivot point and navigate forward to connect to the rim of a cartridge in the barrel of a firearm. Spring arrangements force the extractors upward and forward in an extraction/ejection cycle that begins with the extractor arms grabbing the rear end of a cartridge, moving rearward with the cartridge or spent case on a horizontal plane relative to the rifle barrel. The extracted case is rotated upward at an angle, then moved forward and fed into an ejection chute just above the barrel. Concurrently, another round is fed into the chamber of the barrel and the extractor arms cam down thereby engaging the rim of a new cartridge; thus completing the cycle.

  Recently Added Patents
Apparatus for restoring setting information of a board management controller from a backup memory before loading an OS when a system board is replaced
Artificial engine sound control unit, approaching vehicle audible system, and electric vehicle having them
Sealing member for piezoelectric resonator device, and piezoelectric resonator device
Method and a channel estimating arrangement for performing channel estimation
Single integrated circuit configured to operate both a capacitive proximity sensor device and a resistive pointing stick
Undercabinet plug-in mount
Deflection device for a scanner with Lissajous scanning
  Randomly Featured Patents
Casing distortion control for rotating machinery
Cordless telephone transmitter unit or similar article
Device and method for treating thoracic aorta
Surface trace electrical feedthru
Microwave synthesizer with fractional division
Method and apparatus for adaptive control of closed throttle downshifts in an automatic transmission
Processing system for identifying a string formed from a number of hand-written characters
Telemetry-based wake up of an implantable medical device
Method and apparatus for axially aligning the coupled shafts of a steam turbine
Method for assigning slots in a mobile network