Non-semiautomatic receiver compatible with AR15/10 line of components, parts and accessories

Abstract

A receiver for a firearm and a method of disposing the receiver to prevent automatic reloading and/or trigger reset of a firearm are disclosed. A blocking mechanism is moveable between an upward and a downward position and the blocking mechanism is in the downward position when the firearm is in battery. The blocking mechanism automatically moves to the upward position after a round is fired and the blocking mechanism prevents automatic reloading and/or trigger reset of the firearm when in the upward position.

Claims

1. A receiver for a firearm, wherein the firearm includes a hammer and a trigger, comprising: a bolt block pocket having an orifice formed in a bottom wall thereof; a spring disposed in the orifice; and a blocking mechanism moveable between an upward position and a downward position; wherein the spring urges the blocking mechanism from the downward position to the upward position after a round is fired and thereby prevents movement of the hammer into engagement with the trigger.

2. The receiver of claim 1, wherein the firearm includes a bolt carrier and when the blocking mechanism is in the upward position, the blocking mechanism holds the bolt carrier in a retracted position.

3. The receiver of claim 2, wherein holding the blocking mechanism in the upward position prevents automatic reloading of the firearm.

4. The receiver of claim 2, wherein the bolt carrier holds the blocking mechanism in the downward position when the firearm is in battery.

5. The receiver of claim 1, wherein the firearm includes a bolt block, the blocking mechanism further includes a plunger disposed atop the spring, and at least a portion of the plunger is disposed in a notch formed in a bottom wall of bolt block.

6. The receiver of claim 1, wherein the blocking mechanism is coupled to the receiver by a pivot pin and a portion of the blocking mechanism pivots about the pivot pin when the blocking mechanism moves between the upward position and the downward position.

7. The receiver of claim 1, wherein the blocking mechanism includes a release paddle, wherein the release paddle allows manual movement of the blocking mechanism from the upward position to the downward position.

8. The receiver of claim 7, wherein the release paddle is disposed on a left side of the firearm when viewed from a front of the firearm.

9. The receiver of claim 1 in combination with other components of the firearm, wherein the other components include at least one of a barrel, a bolt, a bolt carrier, an ejector, an extractor, a firing pin, a grip, a hammer, a magazine, and a trigger.

10. A method of preventing resetting a trigger of a firearm, wherein the firearm includes a hammer and a trigger, comprising: disposing a blocking mechanism in a receiver of the firearm, wherein the blocking mechanism is movable between an upward position and a downward position; disposing a spring in an orifice formed in a bottom wall of a bolt block pocket of the receiver; extending the spring after a round is fired and thereby urging the blocking mechanism from the downward position to the upward position; and preventing movement of a hammer into engagement with the trigger when the blocking mechanism is in the upward position.

11. The method of claim 10, further comprising holding a bolt carrier of the firearm in a retracted position when the blocking mechanism is in the upward position.

12. The method of claim 11, further comprising preventing automatic reloading of the firearm when the blocking mechanism is in the upward position.

13. The method of claim 11, further comprising holding the blocking mechanism in the downward position when firearm is in battery.

14. The method of claim 10, further including disposing a plunger atop the spring, and further and disposing at least at least a portion of the plunger in a notch formed in a bottom wall of a bolt block of the firearm.

15. The method of claim 10, further including coupling the blocking mechanism to the receiver by a pivot pin and wherein urging the blocking mechanism from the downward position to the upward position includes pivoting a portion of the blocking mechanism about the pivot pin.

16. The method of claim 10, further including operating a release paddle to manually move the blocking mechanism from the upward position to the downward position.

17. The method of claim 16, further including disposing the release paddle on a left side of the firearm when viewed from a front of the firearm.

Description

DESCRIPTION OF THE DRAWINGS

(1) Features of example implementations of the invention will become apparent from the description, the claims, and the accompanying drawings in which:

(2) FIG. 1 is an isometric view of left, front, and top sides of a receiver for a firearm having a blocking mechanism installed therein;

(3) FIG. 1A is an isometric view of left, front, and top sides of the receiver of FIG. 1;

(4) FIG. 1B is an isometric view of right and top sides of the receiver of FIG. 1 having a portion of the blocking mechanism installed therein;

(5) FIG. 2 is a cross-sectional view of the receiver of FIG. 1 taken generally along the lines A-A; and

(6) FIG. 3 is another cross-sectional view of the receiver of FIG. 1 taken generally along the lines A-A;

(7) FIG. 4 is isometric view of portions of a firearm and the receiver of FIG. 1 having certain portions omitted for clarity; and

(8) FIG. 5 is planar view of portion of a firearm and the receiver of FIG. 1 having certain portion omitted for clarity.

(9) For the sake of clarity, identical components which have identical functions have been designated by identical characters throughout the several views illustrated in the drawings.

DETAILED DESCRIPTION

(10) The attached figures and description below illustrate one possible configuration of a device that comprises a non-semiautomatic firearm receiver.

(11) Referring to FIGS. 1, 1A, and 1B, a receiver 100 for use with a non-semiautomatic firearm, has a front side 102, a rear side 104, a left side 106, and a right side 108. When the receiver 100 is used with other components of a firearm, the front side 102 of the receiver 100 is proximate a discharge portion of the firearm relative to the rear side 104 thereof. The receiver 100 may substitute prior art semiautomatic receivers that would be apparent to one who has ordinary skill in the art and includes a body 102, a portion 114 through which a trigger group may be inserted so that the trigger group extends into a cut out section 116 of the receiver 100, and a magazine well 110. However, the receiver 100 includes differences in, for example, milling and/or construction, as described below to prevent a firearm with which such receiver 100 is used to operate in semiautomatic fashion. Thus, the receiver 100 is not simply a reconfigured receiver typically used with semiautomatic firearms such as an AR 15/10 firearm. Rather the receiver 100 is new type of receiver adapted for use with components compatible with the AR 15/10 and other firearms.

(12) Referring also to FIGS. 2 and 3, the receiver 100 includes bolt block pocket 150 having an orifice 152 milled into a bottom wall 154 thereof. The blocking mechanism 110 is disposed in the pocket 150 and orifice 152. The blocking mechanism 110 includes a plunger control sleeve 156, a push spring 158, a plunger 160, a bolt block 162, and a release paddle 164. In some embodiments, the release paddle 164 is attached to the bolt block 162 and in other embodiments the release paddle 164 and bolt block 162 are milled from a single material and are integral with one another.

(13) The plunger control sleeve 156 of the blocking mechanism 110 is inserted into the orifice 152 and extends upwardly from the bottom wall 154 of the receiver 100. Thereafter, the push spring 158 is inserted into the plunger control sleeve 156 and the plunger 160 is inserted into the plunger control sleeve 156 to rest atop the push spring 158.

(14) In some embodiments, the plunger control sleeve 156 may be integral with the receiver 100 rather than a separate piece. In such embodiments, the orifice 152 is not necessary and the plunger control sleeve 156 is formed from the same material as the receiver 100. In still other embodiments, the plunger control sleeve 156 may be replaced by a shelf or ledge that rises upwardly from the bottom wall 154 and the spring 158 is disposed on such shelf. In some such embodiments, the shelf may include an indentation to facilitate positioning and/or hold the spring 158 in place.

(15) The bolt block 162 is disposed into the receiver 100 such that at least a portion 165 of the bolt block 162 is disposed in the pocket 150 such that at least a portion of the plunger 160 is disposed in a notch 168 formed in a bottom wall 170 of the bolt block 162.

(16) The bolt block 162 is pivotably secured to the receiver 100 by a pivot pin 172 disposed in receiving orifices 174 of the receiver 100 such that the bolt block 162 is movable between a downward position (FIG. 2) and an upward position (FIG. 3). In addition, the receiver 100 includes a spacer 176 disposed in a buffer hole 178 thereof. It should be apparent that conventional receivers include a similar hole 178 to accommodate, for example, a bolt catch spring of such conventional receivers.

(17) FIG. 4 shows a bolt 202 and a bolt carrier 204 of a firearm 200 that is chambered and ready to discharge a round and FIG. 5 shows the bolt 202 of the firearm 200 after the round has been discharged and blocked by the blocking mechanism 110 (FIG. 1). Referring to FIGS. 1-5, when the firearm 200 is in battery (see FIG. 4) with a round chambered and ready to fire, the bolt 202 of the firearm 200 extends past the bolt block 162 toward the front 102 of the receiver 100. When in this position, the bolt carrier 204 to which the bolt 202 is coupled is disposed such that that the bolt block 162 is urged via the plunger 160 against the push spring 158 and held in the downward position (see FIG. 2) by the bolt carrier 204.

(18) As would be apparent to one who has ordinary skill in the art, after a round is fired, a portion of the energy causes the bolt 202 (and the bolt carrier 204) of the firearm 200 to unlock, eject, and extract a casing of the fired round. Thereafter, the bolt 202 and the bolt carrier 204 retract toward the rear 104 of the receiver 100 until the bolt 202 is between the rear 104 of the receiver 100 and a blocking portion 206 of the bolt block 162. When the bolt 202 is rearward of the bolt block 162, upward spring force exerted on the push plunger 160 by the push spring 158 urges the bolt block 162 to pivot about the pivot pin 172 in a direction shown by arrow B and into the upward position (see FIG. 3). The bolt block 162 pivots in this direction until a wall 208 of the bolt block 162 engages the spacer 176. When in the upward position, the blocking portion 206 of the bolt block 162 blocks the bolt 202 and thereby prevents the bolt 202 (and thus the bolt carrier 204) from moving forward (i.e., toward the front 102 of the receiver 100). Such blocking prevents chambering of another round and resetting a trigger 212 for firing of a subsequent round. In particular, while the bolt carrier 204 is held in the retracted position by the bolt block 162 (as shown in FIG. 5), the bolt carrier 204 blocks the hammer 210 from disengaging from a disconnector 214 and moving forward to engage with the trigger 212, and thus prevents resetting the trigger 212 to enable firing of a subsequent round.

(19) The bolt block 162 remains in the blocking (i.e., upward) position until force is applied to the paddle 164 coupled the bolt block 162 to cause the bolt catch 162 to pivot about the pivot pin 172 in the direction shown by the arrow C. Pivoting the bolt block 162 in this manner moves the bolt block 162 into the downward position (see FIG. 2). When the bolt block 162 is moved sufficiently in the downward position so that the bolt block 162 is below the bolt 202, the bolt block 162 stops blocking the bolt 202 and the bolt 202 and the bolt carrier 204 are allowed to move forward toward the front 102 of the receiver 100. Such forward movement of the bolt 202 loads another round (if there is a round in the magazine or manually loaded in the round chamber) and the firearm 200 is ready to fire another round (i.e., the firearm is in battery).

(20) As would be apparent to one who has ordinary skill in the art, a lever (not shown) may be coupled to the bolt block 162 and, when the bolt block 162 is in the upward position, moving the lever urges the bolt block 162 into the downward position. The lever and/or paddle 164 may be disposed on the left side 106, the right side 108, or both the left side 106 and the right side 108 of the receiver body. Having the lever and/paddle 164 on both the left side 106 and the right side 108 facilitates left handed or right handed, respectively, use of the lever and or paddle 164 to return the bolt block 162 into the downward position. Further, in some embodiments, such lever(s) may be coupled to the paddle 162.

(21) It should be apparent to one who has ordinary skill in the art that functions of the push spring 158 and/or the plunger 160 may be provided by other components such as, for example, a V spring or another component that operates to lift the bolt block 162 into the upward position after a shot is fired to block forward movement of the bolt 202 and bolt carrier 204. Further, as would be apparent to one of ordinary skill in the art, orifices in receiver may be formed to accommodate the components described herein or to accommodate other components, such as V springs, levers, and the like noted above, that provide a similar function.

INDUSTRIAL APPLICABILITY

(22) With respect to the above description, the optimum dimensional relationships for the parts of the invention, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one of ordinary skill in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present invention.

(23) All references, including publications, patent applications, and patents, cited herein are hereby incorporated by reference to the same extent as if each reference were individually and specifically indicated to be incorporated by reference and were set forth in its entirety herein.

(24) The use of the terms “a” and “an” and “the” and similar references in the context of describing the invention (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the disclosure and does not pose a limitation on the scope of the disclosure unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the disclosure.

(25) Numerous modifications to the present disclosure will be apparent to those skilled in the art in view of the foregoing description. It should be understood that the illustrated embodiments are exemplary only, and should not be taken as limiting the scope of the disclosure.