SYSTEMS AND METHODS FOR A FIREARM CONVERSION KIT WITH SLAVED EJECTOR

Abstract

A slide for a weapon conversion kit of the type used in conjunction with a firearm having a stock ejector and configured to fire ammunition is provided. The slide includes a slide body and a slaved ejector member rotatably coupled to the slide body. The slaved ejector member has a first portion and a second portion, the second portion including a contact region. The slaved ejector member is configured to contact the stock ejector when the slide body slides rearward in response to firing of the firearm and thereby causes the contact region of the second portion of the slaved ejector member to eject a cartridge case of the ammunition.

Claims

1. A slide for a weapon conversion kit of the type used in conjunction with a firearm having a stock ejector and configured to fire ammunition, the slide including: a slide body; and a slaved ejector member rotatably coupled to the slide body, the slaved ejector member having a first portion and a second portion, the second portion including a contact region; wherein the slaved ejector member is configured to contact the stock ejector when the slide body slides rearward in response to firing of the firearm and thereby causes the contact region of the second portion of the slaved ejector member to eject a cartridge case of the ammunition.

2. The slide of claim 1, wherein the slaved ejector member has a surface that is substantially flush with a breech face of the slide body in a resting state.

3. The slide of claim 1, wherein the second portion of the slaved ejector member is generally J shaped.

4. The slide of claim 1, wherein the second portion has an arcuate contact surface to reduce binding when contacting the stock ejector.

5. The slide of claim 1, wherein the slaved ejector member is manufactured from a material selected from the group consisting of steel, aluminum, brass, and high-strength polymers.

6. The slide of claim 1, further including a spring component coupled to the first portion of the slaved ejector member to constrain the slaved ejector member to the slide body in the resting state.

7. The slide of claim 1, wherein the weapon conversion kit is of the type used to fire low-energy training ammunition.

8. A slide for a firearm conversion kit, the slide including a slaved ejector member that interacts with a stock ejector of the firearm to eject a cartridge case associated with ammunition fired by the firearm.

9. The slide of claim 8, wherein the ammunition is low-energy training ammunition.

10. The slide of claim 8, wherein the slaved ejector member interacts with the stock ejector by rotating with respect to a body of the slide when contacted by the stock ejector.

11. A firearm configured to fire ammunition, the firearm comprising: a stock ejector; and a conversion slide provided in place of a stock slide of the firearm, the conversion slide including a slide body and a slaved ejector member rotatably coupled to the slide body, the slaved ejector member having a first portion and a second portion, the second portion including a contact region; wherein the slaved ejector member is configured to contact the stock ejector when the slide body slides rearward in response to firing the firearm and thereby causes the contact region of the second portion of the slaved ejector member to eject a cartridge case of the ammunition.

12. The firearm of claim 11, wherein the conversion slide is configured to allow the firearm to fire low-energy training ammunition.

13. A firearm kit comprising: A firearm configured to fire ammunition, the firearm having a stock ejector and a stock slide; a conversion slide configured to replace the stock slide of the firearm, the conversion slide including a slide body and a slaved ejector member rotatably coupled to the slide body, the slaved ejector member having a first portion and a second portion, the second portion including a contact region, wherein the slaved ejector member is configured to contact the stock ejector when the slide body slides rearward in response to firing the firearm and thereby causes the contact region of the second portion of the slaved ejector member to eject a cartridge case of the ammunition.

14. The firearm kit of claim 13, further including a low-energy training ammunition cartridge configured to be fired by the firearm when outfitted by the conversion slide.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The exemplary embodiments will hereinafter be described in conjunction with the following drawing figures, wherein like numerals denote like elements.

[0022] FIG. 1 is an isometric section view of a conversion kit slide with slaved ejector in resting mode, in accordance with one embodiment.

[0023] FIG. 2 is an isometric section view of the conversion kit slide of FIG. 1 in an ejection mode.

[0024] FIG. 3 is an isometric overview of the conversion kit slide of FIG. 1 in accordance with one embodiment.

[0025] FIG. 4 is an isometric view of an exemplary slaved ejector member in accordance with one embodiment.

[0026] FIGS. 5-7 depict various free-body diagrams of exemplary slaved ejector members in accordance with various embodiments.

DETAILED DESCRIPTION

[0027] In general, the subject matter described herein relates to an improved conversion kit slide including a slaved ejector that overcomes the limitations of the prior art by being actuated by the rearward motion of the conversion slide as it passes over the existing ejector of the host or stock weapon frame during cycling. That is, the improved ejector is slaved to (i.e., actuated by) the rearward motion of the conversion slide relative to the stock ejector.

[0028] As a preliminary matter, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description. Embodiments of the present disclosure may be described herein in terms of functional and/or logical block components and various processing steps. In addition, those skilled in the art will appreciate that embodiments of the present disclosure may be practiced in conjunction with any number of systems, and that the designs described herein are merely various exemplary embodiments of the present disclosure. For the sake of brevity, conventional techniques related to firearms, conversion kits, ammunition, and other functional aspects of the systems (and the individual operating components of the systems) may not be described in detail herein.

[0029] Referring now to FIG. 1, an exemplary conversion kit slide (or simply conversion slide or slide) 100 will be described. As will be understood, slide 100 is suitably configured to translate respect to a barrel assembly 120 (left and right along the z-axis in FIG. 1) due to the presence of rails or other mechanical constraints. Specifically, slide 100 is configured to move to the right during blowback resulting from firing of the low-energy cartridge.

[0030] As shown, slide 100 generally includes a slave ejector member (or simply ejector member or member) 110 rotatably secured to slide 100 via a pin or other pivot component 104 defining a rotational axis 105 relative to the body of ejector member 110. Ejector member 110 has a first (or upper) portion 111 and a second (e.g., lower) portion 112. In this state (the rest state) ejector member 110 is held in place within slide 100 via a suitable retaining force (e.g., via a spring as shown in the subsequent drawings). Other components that provide a retaining force may alternatively be employed.

[0031] In some embodiments, the rest state ejector member 110 fits within slide 100 such that it does not extend beyond the breech face 102 of slide 100 (i.e., along negative z-axis as illustrated in FIG. 1). In a particular embodiment, ejector member 110 has a surface that is substantially flush with breech face 102.

[0032] FIG. 2 is an isometric section view of the conversion kit slide of FIG. 1 in an ejection mode. Specifically, this figure illustrates ejector member 110 in a (clockwise) rotated position relative to the rest mode of FIG. 1. As shown, the rotation of ejector member 110 is opposed by a spring 205 that provides a force on the backside of upper portion 111 of ejector member 110 and causes member 110 to spring back to its rest position after actuation. It should be noted that ejector member 110 may be opposed by the spring (205) force acting on a plunger (206) or other such intermediate structure. Also shown in FIG. 2 is the stock ejector 202 that is, as mentioned above, fixed to the frame of the firearm and which impinges (at 203) upon the backside of the bottom portion 112 of stock ejector 202 as slide 100 moves backward (to the right in the figure).

[0033] As a result of the rotation of ejector member 110, bottom region 112 contacts and helps to eject a cartridge case 201 (illustrated by the arrow leading from cartridge case 201). Thus, as can be seen, ejector member 110through its interaction with stock ejector 202effectively provides an increased area at the correct offset position to affect ejection of cartridge case 201.

[0034] FIG. 3 provides another isometric section overview of the conversion kit slide 100 of FIG. 1 in a resting mode. This figure shows a ring-shape range of diameters (302) extending from a center 305 (corresponding to a firing pin location) that might be contacted by lower portion 112 of ejector member 110. That is, the ejector member 110 of FIG. 3 would be most effective in ejecting cartridge cases having outer diameters in the illustrated range due to the shape of bottom region 112 of ejector member 110. It can be seen that slaved ejector 110 acts as a surface area augmenter and thus results in more effective contact with the fired cartridge case 201 rim, thus greatly enhancing ejection reliability.

[0035] FIG. 4 presents a close-up view of a slaved ejector member 110 in accordance with a particular embodiment. As shown, member 110 includes a bore 402 configured to rotatably accept the pivot component 104 of FIGS. 1-2. In this embodiment, member 110 includes a tapered back surface 415 configured to contact the stock ejector 202 (shown in FIG. 2). Member 110 also includes a hockey-stick or J-shaped bottom region 112 defined by a contact face 410 configured to contact and assist in ejecting the cartridge case 201 (FIG. 2). In other embodiments, bottom region 112 is paddle shaped or simply of a wider, substantially constant width. Contact face 410 is bounded by a top edge 414 (which may be sloped, as shown), a distal edge 413, a bottom edge 412, and a beveled edge 411 as shown. In general, it will be appreciated that the design of slide 100 in FIG. 1 will include a modified breech face structure that can accommodate the shape of bottom region 412 (and indeed the entirety of member 110) within the confines of breech face 102 such that contact face 410 is substantially flush with breech face 102.

[0036] While the above figures illustrate an embodiment wherein the top portion 111 of member 110 rotates about a central pivot component 104 and is constrained via a compressive force applied to the backside of upper portion 111, the invention is not so limited, and any form of constrained lever configuration may be used. In that regard, FIGS. 5-6 depict simplified free-body diagrams of exemplary slaved ejector members in accordance with various embodiments. Specifically, FIG. 5 depicts the mode of operation shown in FIGS. 1 and 2, wherein the loading force is applied to the top portion and the stock ejector force is applied to the bottom portion of member 110, resulting in selective rotation around pivot component 104. FIG. 6, on the other hand, shows the case where the loading force comprises a rotational moment provided, for example, by a torsion spring or other such component.

[0037] Finally, FIG. 7 illustrates the case in which the pivot component 104 is located near the top of member 110 and the opposing loading force and stock ejector force occur below the pivot component 104. It will be appreciated that the embodiments shown in FIG. 5-7 are not intended to be limiting, and that any mechanical assembly that allows member 110 to eject the cartridge case by virtue of interaction with the stock ejector may be employed. That is, the present invention contemplates any slaved arrangement of a moveable conversion kit ejector configured to interact with a stock ejector.

[0038] Ejector member 110 may be manufactured using a variety of materials, including a rigid metal, such as steel, brass or aluminum, high strength polymers, or the like. In some embodiments, steel is a particularly advantageous material due to its strength, cost and manufacturing ease.

[0039] While at least one exemplary embodiment has been presented in the foregoing detailed description, it should be appreciated that a vast number of variations exist. It should also be appreciated that the exemplary embodiment or exemplary embodiments are only examples, and are not intended to limit the scope, applicability, or configuration of the disclosure in any way. Rather, the foregoing detailed description will provide those skilled in the art with a convenient road map for implementing the exemplary embodiment or exemplary embodiments. It should be understood that various changes can be made in the function and arrangement of elements without departing from the scope of the disclosure as set forth in the appended claims and the legal equivalents thereof.