Abstract:
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.

Description:
The present invention generally relates to extractors for handheld firearms, and more particularly, to apparatus, devices, systems and methods for extracting and ejecting cartridges and spent cartridge cases. 
   BACKGROUND AND PRIOR ART 
   There has been considerable prior art for cartridge ejection mechanisms, and the prior art dates back to mid-20 th  century times, with cartridge or spent cartridge case ejection mechanism of various structures and configurations. In the discussion below, the terms “cartridge case”, “spent cartridge case” and “case”, are used interchangeably, to mean the metal casing or holder, usually cylindrical in shape, that is loaded with a primer, powder charge, and bullet. 
   Cartridge cases drop at random to the ground or surface beneath or beside the firearm and in the course of ejection are liable to soil the clothing of the user or of onlookers nearby since they become fouled by reason of the explosive gases emitted upon firing. The random ejection of spent cartridge cases can be very disturbing or even injurious to someone standing close to the shooter when the gun is fired as the case is expelled from the gun with considerable violence. 
   When a shooter is standing close to a wall for protection of his or her body while operating a firearm, the shooter can be injured or burned when the spent cartridge case is randomly ejected from the firearm and ricochets from the nearby wall used as a shield. 
   The ejection and spill of empty cartridge cases on to the floor of aircraft and ships can create hazards, for example, the empty cases could become ingested into the aircraft engine or trigger slip and fall injuries to persons moving over the floor in the heat of battle. The spent cases also have some value as scrap material and it is economical to collect as many as possible for subsequent reuse and/or sale. 
   The known prior art includes several patents discussed below. U.S. Pat. No. 2,476,904 to C. A. Perry, has a breech block with an extractor that engages the cartridge case, extracts the empty cartridge, then exposes the cartridge through an ejection aperture below the barrel of a firearm. U.S. Pat. No. 2,866,289 to L. L. Wilcox describes an unloading attachment for rifles wherein an unloading tube acts as a guide way for cartridges. U.S. Pat. No. 3,000,126 to R. S. Robinson describes a cartridge guiding mechanism that guides the cartridge through an exit groove. 
   U.S. Pat. No. 3,087,387 to V. A. Browning describes a case catcher for firearms that moves rearward after firing wherein, the spent case is extracted from the firing chamber and drawn laterally before being ejected via an opening. U.S. Pat. No. 3,270,617 to R. V. Seymour et al. describes a case catcher attached to the reciprocal bolt of a firearm and is readily attached to existing firearms. 
   U.S. Pat. No. 3,733,728 to Kuslich describes a case catcher with parallel arms for repeating firearms. U.S. Pat. No. 4,265,042 Isola describes a cartridge retriever mounting and attaching device for a Colt M-16 rifle that is fitted on top of rifle with lugs. U.S. Statutory Invention Registration H211 to Vanderbeck discloses an extractor hook-feed ramp combination wherein the spent cartridge case spins around a pivot formed by the extraction hook. 
   U.S. Pat. No. 5,024,016 to D. E. Smith describes a self-loading pistol with an insertable mechanism for extracting empty cartridge cases. U.S. Pat. No. 5,307,724 to Breuer et al. describes dual claws fastened to the ends of L-shaped ejection levers used to remove empty cartridge cases from large caliber guns. U.S. Pat. No. 5,675,924 to Predazzer describes an ejection device for a firearm having an automatic or manual cycle using an extractor that catches the casing by its neck with an ejection lever mounted in a swiveling manner around an axis. 
   U.S. Pat. No. 5,934,002 to Blanchet describes a claw type device with a detachable container for receiving and collecting spent cases ejected from a firearm having a spent case ejection port. U.S. Patent Publication 2005/0235543 A1 to J. Murello describes a cartridge ejection mechanism with guide rods and pivoting extractors in a bolt head attached to the breech block of a firearm. U.S. Pat. No. 6,389,725 to Denuit provides an improvement to the Predazzer &#39;924 patent supra to make sure the extractor exposes the casing when it is tilted. 
   These patents disclose the respective art in relation to ejecting cartridge cases from firearms, but do not disclose an easy to manufacture, spring-loaded, dual pivoting extractor with ejection chute on top of a firearm that safely extracts an empty cartridge case and does not interfere with the shooter&#39;s sight line. 
   SUMMARY OF THE INVENTION 
   The disclosed invention, which shall be subsequently described in greater detail, provides a new device designed to improve the functioning of a bull pup rifle with a forward cartridge case ejecting system. The design and precision with which the dual pivoting extractors of the present invention are made contribute to many advantages over the prior art. The new and novel features include, but are not limited to, the efficient arrangement of a spring-loaded bolt carrier attached to a breech block having dual pivoting extractor arms that extract, pivot and release a cartridge or an empty cartridge case into an ejection chute. The design and function of the apparatus of the present invention has not been suggested, anticipated or even rendered obvious by any of the prior art references. 
   The first objective of the present invention is to provide a cartridge remover and methods that pull a cartridge or an empty case from a firearm and directs it to an ejector chute. 
   The second objective of the present invention is to provide a dual pivoting extractor and methods that pull a cartridge or an empty case from a firearm, raise or pivot the case upward while carrying the cartridge or spent case safely to an exit point on top of the firearm. 
   The third objective of the present invention is to provide a permanently attached device or system to the breech block of a firearm that extracts and ejects a cartridge or cartridge case in a safe manner without interfering with the shooter&#39;s line of sight. 
   The fourth objective of the present invention is to provide a permanently attached device or system to the breech block of a firearm that extracts and ejects a cartridge or cartridge case in a safe manner without injury to the shooter or persons in close range to the shooter. 
   The fifth objective of the present invention is to provide a permanently attached device or system to the breech block of a firearm that extracts and ejects a cartridge or cartridge case in a safe manner when the firearm is being operated in close quarters, such as, against a wall or behind a shield. 
   The sixth objective of the present invention is to provide a dual pivoting extractor or method that disposes of a cartridge or empty cartridge case to the side of the firearm. 
   A preferred apparatus for ejecting cartridges or spent cartridge cases from firearms, includes a rifle having a trigger and a magazine holding ammunition, an extractor with a pivoting arm having one end that grips a rear end of a cartridge case, the pivoting extractor arm raising and lowering a spent cartridge case relative to the rifle, and an ejector for ejecting the spent cartridge case into an exit from the firearm. 
   The preferred extractor apparatus of the present invention has a pair of pivoting arms with ends that grip about the rear end of a spent cartridge case. The ends that grip about the rear end of the spent cartridge case have a lower catch area that grips the spent cartridge case when the pivoting arm is moving in a rearward position and the ejector, which includes an upper catch area that releases the spent cartridge case as the pivoting arm cams down from a pivoted position into an exit portal. The preferred extractor further includes an ejector impact surface that pushes the released cartridge down or through the exit portal. 
   The preferred exit portal includes a chute on the rifle that allows the spent cartridge case to eject forward and to one side of the rifle or another preferred exit portal includes an attached flexible, fireproof container to receive and collect the spent cartridge case ejected forward and to one side of the rifle. 
   A more preferred extractor of the present invention includes a slideable carriage for supporting the pivoting arm, wherein the slideable cartridge moves the grabbed spent cartridge case in a horizontal direction relative to the rifle. The pivoting extractor arms cam up the spent cartridge case to an acute angle in line with the exit portal on the firearm. The preferred pivoting extractor arms release the spent cartridge case into an ejection chute and cam down to grip about the rear end of a new cartridge. 
   The more preferred extractor apparatus of the present invention further includes a spring-loaded bolt carrier extension, which is activated manually by a handle or activated automatically by a gas piston. 
   A preferred method for extracting and ejecting a cartridge or a spent cartridge case from a firearm includes providing a rifle having a trigger and a magazine holding ammunition, attaching an extractor with a pivoting extractor arm having one end that grips a rear end of a cartridge case, the pivoting arm raising and lowering a spent cartridge case relative to the rifle, releasing the spent cartridge case into an exit portal on the firearm, and pushing the released spent cartridge case into the exit portal thereby safely removing the spent cartridge case on the side of the firearm and out of the sight line. 
   The preferred extractor/ejection method includes a pair of pivoting arms, the pivoting arms having ends that grip about the rear end of the spent cartridge case. The ends that grip about the rear end of the spent cartridge case have a lower catch area that grips and extracts the spent cartridge case when the pivoting arm is moving in a rearward position and ejects the spent cartridge case when an upper catch area of the pivoting arm releases the spent cartridge case as the pivoting arm cams down from a pivoted position into an exit portal. The ejector further includes an ejector impact surface that pushes the case down and through the exit portal. 
   The preferred method has an exit portal that includes a chute on the rifle that receives and allows the spent cartridge case to eject forward and to one side of the rifle. Another preferred exit portal includes an attached flexible, fireproof container to receive and collect the spent cartridge case ejected forward and to one side of the rifle. 
   The preferred method of extracting and ejecting cartridges or cartridge cases further includes a slideable carriage for supporting the pivoting arm, wherein the slideable carriage moves the grabbed spent cartridge case in a horizontal direction relative to the rifle. 
   The preferred method also includes pivoting extractor arms that cam up the spent cartridge case to an acute angle in line with the exit portal on the firearm. The pivoting extractor arms release the spent cartridge case into an ejection chute and cam down to grip about the rear end of a new cartridge. 
   The preferred method further includes a spring-loaded bolt carrier extension that is manually activated by a handle or automatically activated by a gas piston. 
   Further objects and advantages of this invention will be apparent from the following detailed description of a presently preferred embodiment, which is illustrated in the accompanying flow chart and drawings. 

   
     BRIEF DESCRIPTION OF THE FIGURES 
     Referring particularly to the drawings for the purposes of illustration only, and not limitation: 
       FIG. 1  is a plan perspective view of the cartridge or cartridge case extractor assembly of the present invention. 
       FIG. 2  is an enlarged side view of the cartridge case extractor with bolt carrier extension removed. 
       FIG. 3  is an exploded plan perspective view of the bolt carrier extension for the cartridge case extractor. 
       FIG. 4  is a bottom view of the bolt carrier extension assembly for the cartridge case extractor. 
       FIG. 5  is a bottom view of the bolt carrier extension assembly for the cartridge case extractor with the bolt carrier attached thereto. 
       FIG. 6  is an exploded view of the cartridge case extractor of the present invention. 
       FIG. 7  is an enlarged view of the dual pivoting extractor arms of the cartridge case extractor. 
       FIG. 8  is a partial cut-away perspective view of the cartridge case extractor showing the lower catch area of the dual pivoting extractor arms gripping the rear end of a cartridge in position to be fired. 
       FIG. 9  is a partial cut-away perspective view of the cartridge case extractor after the firearm is fired, showing the lower catch area of the dual pivoting extractor arms gripping the rear end of a cartridge and extracting the spent case from the barrel of the gun as the entire extractor assembly moves rearward. 
       FIG. 10  is a partial cut-away perspective view of the cartridge case extractor showing the lower catch area of the dual pivoting extractor arms gripping the rear end of a cartridge at the end of the rearward movement of the extractor assembly with the empty case raised at an acute angle. 
       FIG. 11  is a partial cut-away perspective view of the cartridge case extractor showing the lower catch area of the dual pivoting extractor arms gripping and holding the rear end of a spent case in a raised and angled position in line with the ejection chute, as the extractor assembly moves forward and the breech block feeds the new cartridge into the barrel. 
       FIG. 12  is a partial cut-away perspective view of the cartridge case extractor showing the rear end of a spent cartridge moving from the lower catch area of the dual pivoting extractor arms to the upper catch area as the cartridge enters the space between the extractor bolt carrier extension and the ejection chute while simultaneously loading the cartridge. 
       FIG. 13  is a partial cut-away perspective view of the cartridge case extractor showing the empty cartridge case being pushed down the ejection chute as the dual pivoting extractor arms are cammed down to grasp the rear end of a new cartridge case with bullet that has moved from the magazine into the barrel of the firearm. 
       FIG. 14  is a partial cut-away perspective view of the cartridge case extractor showing empty cartridge cases exiting the ejection cute to side of firearm. 
       FIG. 15  is a flow chart of the extraction and ejection cycle of a cartridge case extractor assembly of the present invention. 
   

   DESCRIPTION OF THE PREFERRED EMBODIMENT 
   Before explaining the disclosed embodiment of the present invention in detail, it is to be understood that the invention is not limited in its application to the details of the particular arrangement shown since the invention is capable of other embodiments. Also, the terminology used herein is for the purpose of description and not of limitation. 
   It would be useful to discuss the meanings of some words used herein and their applications before discussing the cartridge or spent cartridge case extractor of the present invention and method of using the same. A cartridge that has not been fired can be extracted and ejected using the present invention and it is understood to be within the scope of the invention. 
   “Ammunition” and “cartridge” are used interchangeably to mean a cylindrical, usually metal casing containing the primer and powder charge or bullet for a firearm. 
   “Cartridge remover,” “cartridge case extractor,” “extractor arms” and “extractor” are used interchangeably to mean a device for withdrawing a cartridge or spent cartridge case from the chamber of the barrel of a firearm. The device holds onto the rim of the ammunition, extracts and ejects the empty casing when cycling after a shot has been fired. 
   “Firearm” is used herein to refer to all weapons to which an extractor can be attached, such as bolt action, lever-action, semi-automatic and fully automatic weapons. A preferred weapon for attaching the present invention is the bull pup rifle. 
   The directional terms “horizontal,” “vertical,” “front,” “forward,” “rear,” “rearward,” “right,” “left” refer to the firearm when held in the normal firing position. 
   Listed below are the components of the dual pivoting extractor assembly shown in  FIGS. 1-14 .
           10  Bolt carrier of cartridge case extractor     11  Right front cam surface     12  Left front cam surface     15  Ejector impact surface     17  Transverse retaining pin     20  Bolt carrier extension for cartridge case extractor     21  Rear housing guide for bolt carrier extension     23  Right recoil spring rod attached to inside right side of bolt carrier extension     24  Left recoil spring rod attached to inside left side of bolt carrier extension     25  Tension screws holding springs onto rods     26  Anchor plate for right and left recoil spring rods     27  Openings for screws to secure bolt carrier of cartridge case extractor to bolt carrier extension     27   a  Matching threaded screw holes in bolt carrier of cartridge case extractor     30  Curved ejection chute     40  Handle for manual recoil of bolt carrier extension     45  Forward housing for ejection chute with bore hole     50  Bore hole in forward housing through which spent case is ejected     60  Barrel of firearm     70  Magazine for cartridges to be fed into barrel chamber     80  Firearm to which the cartridge case extractor assembly is attached     110  Breech block of cartridge case extractor     112  Left pivoting extractor arm     114  Right pivoting extractor arm     116  Spring clip     118  Assisting coil spring     120  Transverse longitudinal L-shaped slot     122  Right wedge-shaped guide or notch     124  Left wedge-shaped guide or notch     126  Axis for pivoting     200  Receiver with inner curved surface     400  Cartridge to be fired     500  Spent cartridge case   a Lower catch area of gripping end for right pivoting arm   b Upper catch of gripping end for right pivoting arm   c Lower catch of gripping end for left pivoting arm   d Upper catch area of gripping end for left pivoting arm   e Right orifice for insertion of spring clip   f Left orifice for insertion of spring clip   g Orifice in breech block of cartridge case extractor for insertion of the pivoting axis       

   In general, the operation of the cartridge case ejector of the present invention includes the use of a pivoting extractor, preferably, dual pivoting extractors with gripping ends that hold the rear end of the cartridge case while the ejection device moves rearward on a slideable breech block carriage, propelled backward by applying force to a spring-loaded assembly bolt carrier extension. 
   The extraction/ejection cycle described below is applicable to a cartridge or spent cartridge case; however, the description is as if the weapon has been fired and a spent cartridge case is left in the barrel chamber. 
   In an extraction/ejection cycle, single or dual pivoting extractor grabs the rear rim of a cartridge before the firearm is fired; the extractor holds on to the spent case left in the chamber; the extractor moves the spent case backwards on a horizontal plane relative to the rifle barrel while pivoting to lift or cam up the spent cartridge case at an angle; the magazine exposes a new cartridge; the pivoting extractor moves forward on the sliding breech block; the pivoting extractor cams down and exposes the spent cartridge case into a chute or exit portal on top of the rifle; simultaneously, the front end of the breech block pushes a new cartridge into the barrel of the firearm and the bolt carrier pushes the spent cartridge case into an exit portal on the firearm. The preferred exit portal is a curved chute on top of the rifle. 
   The cycle of gripping, rearward movement, raising or pivoting, moving forward and releasing a cartridge or spent cartridge case into an ejection chute takes about 1/10 of a second and is automatic, continuous and safe for any user of the cartridge case ejection device of the present invention. 
   The cartridge case extractor assembly of the present invention consists of four distinct, carefully machined, and easy to manufacture parts, which are, the bolt carrier of the extractor, the breech block of the extractor, the spring-loaded bolt carrier extension, and the extractor chute. 
     FIG. 1  is a perspective view of the cartridge case ejection device and the ejection chute on top of the firearm. The bolt carrier  10  of the cartridge extractor is positioned above the magazine  70  and aligned with the ejection chute  30  that curves slightly to the right side of the top of the firearm  80 , below and to the right of handle  40  used for manual recoil of the bolt carrier. The ejection chute  30  terminates in a forward housing  45  with an opening  50  through which the cartridge or spent cartridge case exits to the side of the barrel  60 . The forward housing  45  provides a secure means for attaching the end of the chute  30  to the top of the firearm  80 . The chute  30  is made of a strong, thin gauge metal and is approximately 12 inches in length, and approximately 0.5 inches in diameter. The chute  30  can be adapted to curve slightly to the left or right to accommodate the preferences of a right- or left-handed shooter. 
     FIG. 1  also shows a rear housing  21  which guides the bolt carrier extension backward and forward stabilizing the movement of the cartridge case ejection apparatus disclosed herein. The rear housing  21  and the forward housing  45  have threaded screw holes for attachment of optical sights. 
     FIG. 2  is an enlarged side view of the cartridge case extractor showing how the bolt carrier  10  is seated on the breech block  110 . A retaining pin  17  connects the bolt carrier  10  to the breech block  110  and provides a transverse axis that cooperates in the forward, backward and pivoting movements of pivoting arms  112  and  114  (not shown). 
     FIG. 3  is an exploded top perspective view of the cartridge case extractor bolt carrier extension  20 , which is approximately 14 inches in length and approximately 1.25 inches in diameter with three screw holes  27  at the distal end spaced approximately 1 inch apart. The screw holes  27  align matingly with three threaded openings in the bolt carrier  10  of the extractor, so that the bolt carrier extension  20  and the bolt carrier  10  of the extractor are securely attached with screws for the operation of the extractor. The screw attachments shown in  FIGS. 1-6  are an optional means of attaching the bolt carrier extension  20  to the bolt carrier  10 ; the extension and carrier can be welded together as shown in  FIGS. 8-14 . Any other means of metal to metal attachment can be used to provide a permanent and secure connection of the two parts. 
   Bolt carrier extension  20  may have an attached lever or handle  40  located at the forward end that is used to manually retract the bolt carrier extension to cause the backward movement of the extractor. It is also possible to install a gas piston in the forward housing  45  of the bolt carrier extension  20  that operates in conjunction with the firing of the weapon and generates a force sufficient to fully recoil the bolt carrier extension  20  with the attached cartridge case extractor. A set of spring rods  23  and  24  have springs held in place by screws  25  on one end with the opposite end permanently attached to an anchor plate  26  that hold the spring rods in parallel alignment. The spring rods  23  and  24  are mounted on a welded plate inside the cartridge extractor bolt carrier extension  20  at a distance that is approximately 8.5 inches from the distal end of bolt carrier extension  20 . The spring rods  23  and  24  function as parallel spring-loaded rails that provide the force to move the extractor forward from the fully recoiled position. 
     FIG. 4  is a bottom view of the assembled bolt carrier extension  20  showing screw holes  27  and the placement of the spring rods  23  and  24  with end screws  25  and attachment to anchor plate  26 . 
     FIG. 5  is a bottom view of the assembled bolt carrier extension  20  showing the placement of the bolt carrier  10  of the extractor with the right front cam surface  11  and left front cam surface  12  in place to slide forward and backward over spring rods  23  and  24  that are held in parallel alignment by anchor plate  26 . Bolt carrier  10  is approximately 3.5 inches long, approximately 0.6 inches wide and approximately 1.25 inches high and is machined of one piece of steel. The bolt carrier  10  includes an ejector impact surface  15  that is designed to push the spent cartridge down the ejection chute or exit portal when the spent cartridge case is released by the dual pivoting extractor arms. The right front cam surface  11  and left front cam surface  12  cam down on the corresponding pivoting extractor arms and cause them to grip the rear end of a cartridge at the end of the extraction/ejection cycle. 
     FIG. 6  is an exploded view of the cartridge case ejection device with all parts, including, but not limited to, dual pivoting extractor arms  112  and  114  each approximately 1.8 inches in length and each machined from one piece of steel to include a wedge-shaped guide or notch  122  (shown on right pivoting arm  112 ), gripping ends of arms  112  and  114  with lower catch areas a, c, and upper catch areas b and d. Orifices e and f are positioned approximately 0.75 inches from the rear of the pivoting arms to receive the connecting spring clip  116  for holding arms in pivoting position. Orifice g contains the pivoting axis  126 . 
   Also shown in  FIG. 6  is the assisting coil spring  118  that is centrally located in the body of the breech block  110  of the cartridge case extractor. Coil spring  118  assists with the cam motion of the dual pivoting extractor arms. Pivoting axis  126  protrudes from the left pivoting arm  114  to stabilize the dual pivoting extractor arms during pivoting, forward and rearward movement of the extractor assembly. 
   The bolt carrier  10  of the extractor assembly is attached to the breech block  110  with a transverse retaining pin  17  that extends through holes in the left and right rear end of the bolt carrier  10  and through a transverse longitudinal L-shaped slot  120  in the breech block  110 . The L-shaped slot  120  is designed to assist in the action of raising and lowering the pivoting arms. Bolt carrier  10  further includes right front cam surface  11  that functions together with left front cam surface  12  (shown in  FIG. 5 ) to cam down the dual pivoting extractor arms at the end of the ejection of a cartridge or spent cartridge case. 
   Also shown in  FIG. 6  is the extractor bolt carrier extension  20  with handle or lever  40  for manual recoil of the entire extractor assembly when the bolt carrier  10  is connected by the transverse retaining pin  17  to the breech block  110  and the bolt carrier extension  20  is secured by the appropriate screws with holes  27  aligned with threaded screw holes  27   a  in the bolt carrier  10 . 
   It should be noted that the design and fitting of each part of the extractor assembly is done with precision so that each groove, orifice, curved surface and angled piece is functional in gripping, pivoting, starting and stopping rearward and forward movement, including the frontal protrusion  15  on the bolt carrier  10  for pushing an empty case  500  down the ejection chute  30  or other acceptable exit portal on top of the firearm. 
   Another acceptable exit portal can include, but is not limited to, a deflector or guide at the point where forward movement of the extractor ceases, that allows the extracted case or cartridge to exit an opening in the extractor bolt carrier extension that is enclosed by an empty case collector for firearm as disclosed and claimed in U.S. Pat. No. 5,934,002 to Blanchet, the teachings of which are incorporated herein by reference. 
     FIG. 7  is an enlarged view of the dual pivoting extractor arms of the extractor assembly. Right arm  112  has a wedge-shaped guide or notch  122  that rides along an inner curved surface of the breech block attachment for the extractor assembly. The left arm  114  has a corresponding wedge-shaped guide or notch  124  that rides along an inner curved surface on the left side of the breech block attachment. The path taken in unison by wedge shaped guides  122  and  124  contribute to the raising and lowering of the dual pivoting extractor arms when moving backward and forward during the extraction and releasing of the spent cartridge case  500  in ejection chute  30 . The function of the lower catch areas a and c and the upper catch area b and d will be explained in greater detail in the discussion of  FIGS. 8-12 . 
     FIG. 8  is a partial cut-away perspective view showing the position of the dual pivoting extractor assembly of the present invention positioned above a magazine  70  when a cartridge  400  has been moved from the magazine  70  and is chambered in the barrel  60  of a firearm. The bolt carrier  10  is connected to the breech block  110  by the transverse retaining pin  17  inserted through the transverse longitudinal L-shaped slot  120  of breech block  110 . This position is considered the beginning of the extraction/ejection cycle of the extractor assembly. Pivoting arm  112  is gripping the rear end of the cartridge  400  in the lower catch area a. Ejector impact surface  15  is aligned with the ejection chute  30  and bolt carrier extension  20  is shown in an attached position. 
     FIG. 9  is a partial cut-away perspective view showing the position of the dual pivoting extractor assembly of the present invention as it begins to move rearward away from magazine  70  after the firing of cartridge  400  ( FIG. 8 ). The rearward movement is caused by the manual force using lever  40  or a gas piston (not shown). Pivoting arms  112  and  114  are shown gripping the rear end of the spent cartridge  500  in the lower catch area a and c and extracting the cartridge from the barrel of the firearm. Ejector impact surface  15  is also moving rearward away from the ejection chute  30  and bolt carrier extension  20  is shown in an attached position. 
     FIG. 10  is a partial cut-away perspective view showing the position of the dual pivoting extractor assembly of the present invention at the end of its rearward movement away and to the rear of magazine  70 . At this point, the magazine  70  is now cleared to release a new cartridge  400  for the barrel of the firearm. At this position, pivoting extractor arms  112  and  114  are still gripping the rear end of the spent cartridge  500  in the lower catch area a and c, after extracting the cartridge from the barrel of the firearm and is pivoting the spent cartridge case  500  at an acute angle as a result of the guide  122  traveling along the inner curved surface  200  of the receiver attachment, the extractor arms are cammed up as the transverse retaining pin  17  drops into the lowest portion of the transverse longitudinal L-shaped slot  120  and the spring clip  116  holds the pivoting arms upward. 
   Limits on the upward movement of the case  500  are provided by the extractor bolt carrier extension  20 , the right front cam surface  11  and the left front cam surface  12  (not shown). The extractor assembly is at the most rearward position from the ejection chute  30 . Note the ejection chute bolt carrier extension  20  in its attached position. 
     FIG. 11  is a partial cut-away perspective view showing the position of the dual pivoting extractor assembly of the present invention as it begins forward movement toward and above magazine  70 . At this point, the magazine  70  is exposing a new cartridge  400  and the breech block  110  feeds the new cartridge into the barrel of the firearm. At this position, pivoting arms  112  and  114  are still gripping the rear end of the spent cartridge  500  in the lower catch area a and c, and the spent cartridge case  500  is held at an acute angle and stabilized by the action of the assisting coil spring  118  (shown in  FIG. 6 ). The transverse retaining pin  17  remains in the lowest portion of the transverse longitudinal L-shaped slot  120  as the spent cartridge  500  remains in the pivoted position with the front end moving laterally along the inside of the extractor bolt carrier extension  20  in line with the ejection chute  30 . Note the position of the ejection chute bolt carrier extension  20  does not change in relation to the bolt carrier  10  of the extractor assembly because of secure attachment or connection by screws, welding, or other techniques known to those skilled in the art. 
     FIG. 12  is a partial cut-away perspective view showing the position of the dual pivoting extractor assembly of the present invention just before the end of its forward movement toward and above magazine  70 . At this point, the breech block  110  has fed a new cartridge  400  into the barrel of the firearm. At this position, the spent cartridge  500  is in contact with receiving end of the ejection chute  30  and the pivoting arms  112  and  114  are releasing the rear end of the spent cartridge  500  into the upper catch area b and d, causing the spent cartridge case  500  to move into a horizontal position between the extractor bolt carrier extension  20  and the ejection chute  30 . The transverse retaining pin  17  is still in the lowest portion of the transverse longitudinal L-shaped slot  120  providing tension and stability so that the spent cartridge  500  moves into the upper catch area area b and d. The force of the forward motion of the spring-loaded bolt carrier extension and extractor assembly moves the spent cartridge  500  into a horizontal position with the front end moving laterally along the inside of the extractor bolt carrier extension  20  into the ejection chute  30 . The position of the bolt carrier extension  20  does not change in relation to the bolt carrier  10  of the extractor assembly. 
     FIG. 13  is a partial cut-away perspective view showing the position of the dual pivoting extractor assembly of the present invention at the end of its forward movement above magazine  70 . At this point, a new cartridge  400  is chambered in the barrel of the firearm. At this position, the spent cartridge  500  is released from the upper catch area area b and d of the dual pivoting extractor arms into ejection chute  30  and the pivoting arms  112  and  114  are cammed down by right front cam surface  11  and the left front cam surface  12  (not shown). The transverse retaining pin  17  now moves laterally along the transverse longitudinal L-shaped slot  120  causing the ejector impact surface  15  to push the spent cartridge case  500  down the ejection chute  30 . The force of dropping the dual pivoting extractor arms after the release of the spent cartridge case  500  causes the right pivoting arm  112  to grip about the rear end of the new cartridge  400  in the lower catch area a. It is understood that the left pivoting arm  114  having lower catch area c works in unison with the right pivoting arm  112 . To reiterate, the position of bolt carrier extension  20  does not change in relation to the bolt carrier  10  of the extractor assembly because the two parts are securely attached. 
     FIG. 14  is a partial cut-away perspective view showing the position of the dual pivoting extractor assembly of the present invention at the end of its rearward movement away from magazine  70 . At this point, the magazine  70  is now exposing a new cartridge  400  that will be fed into the barrel of the firearm by breech block  110 . At this position, pivoting arms  112  and  114  are gripping the rear end of a spent cartridge  500 ; however, this operation is shown after several complete cycles of extraction and ejection of cartridge cases as shown by the three spent cartridges in the ejection chute  30 . The bolt carrier  10  connected to the breech block  110  by a transverse retaining pin  17  have been moved to the position shown by the spring-loaded extractor bolt carrier extension  20 . Spent cartridge cases  500  are shown exiting the ejection chute  30  above the barrel  60  to the right of the firearm. 
     FIG. 15  is a flow chart of the extraction/ejection cycle of the cartridge case extractor assembly of the present invention. The cycle begins with the extractor assembly in its forward most position with the dual pivoting extractor arms gripping the rear end of a cartridge chambered in the barrel of a firearm. The weapon fires, or the shooter may decide to extract the cartridge rather than fire it, in either case, the operation is the same and is explained herein as if the shooter has fired the weapon. 
   After firing the weapon, an empty cartridge case is left in the barrel of the firearm. Force one can be a manual pull on a lever attached to the extractor bolt carrier extension or the action of a gas piston installed in the forward housing  45  that will impact the forward end of the bolt carrier extension. This force moves the extractor assembly rearward while the dual pivoting extractor pulls the empty case out of the chamber. 
   The dual extractor on the slideable breech block moves rearward over the curved inner surface of the receiver and raises or cams up the empty case at an acute angle in alignment with an ejection chute positioned on top of the barrel of the firearm. In this rearward position, a new cartridge is exposed in the magazine. 
   Force two that moves the assembly towards the chute is the spring-loaded arrangement in the extractor bolt carrier extension. The slideable breech block moves forward, contacts the rear of a new cartridge and pushes the cartridge toward the barrel while the dual extractors hold the empty cartridge case in a pivoted position. The empty cartridge case comes in contact with the entrance to the ejection chute and the force of the contact (Force three) moves the case from the lower catch area of the pivoting extractor to the upper catch area of the pivoting extractor. Then, the space between the extractor bolt carrier extension and the entrance to the ejection chute forces the cartridge to move laterally in a horizontal position. 
   At the end of the forward movement of the extractor assembly, the breech block chambers a new cartridge into the barrel of the firearm and the dual pivoting extractor releases the cartridge case into the ejection chute before it cams down to grip the rear end of a new cartridge. As the pivoting extractor arms cam down, force four, the ejector impact surface, pushes the cartridge case, so that the case safely exits the ejection chute that is curved to the side of the firearm. This is the end of the cycle, which is completed in less than approximately 0.1 of a second. 
   Disclosed herein is a device designed to improve the functioning of a firearm, such as, a bull pup rifle, with a forward cartridge or spent cartridge-case ejecting system by providing a simpler, more condensed mechanism. Four distinct, carefully machined parts function to safely and reliably extract and eject cartridges or empty cartridge cases in a manner that does not injure or interfere with the shooter&#39;s line of sight. 
   While the invention has been described, disclosed, illustrated and shown in various terms of certain embodiments or modifications which it has presumed in practice, the scope of the invention is not intended to be, nor should it be deemed to be, limited thereby and such other modifications or embodiments as may be suggested by the teachings herein are particularly reserved especially as they fall within the breadth and scope of the claims here appended.