Bulk cartridge magazine for firearms and process for loading

• US 4,707,941 A
• Filed: 06/16/1986
• Issued: 11/24/1987
• Est. Priority Date: 06/16/1986
• Status: Expired due to Fees

• Current Assignee: Peter M. Eastman
• Original Assignee: Peter M. Eastman
• Inventors: Eastman, Peter M.
• Primary Examiner(s): Kyle, Deborah L.
• Assistant Examiner(s): Carone, Michael J.
• Application Number:
  US06/874,645
• Time in Patent Office: 526 Days
• Field of Search: 42/87, 42/88, 42/6, 42/49.01, 42/49.02, 42/50.0
• US Class Current: 42/50
• CPC Class Codes: F41A 9/68 Plural magazines, e.g. tandem magazines ; Arrangements of cartridges in two or more independent rows or channels which are selectively or sequentially brought into operative position

Abstract

A quick load magazine and loading process are described by which bulk cartridges can be transferred from a cartridge box to a magazine and from the cartridge magazine to the firing mechanism of a firearm in a quick and efficient manner. The magazine includes mechanisms facilitating a loading process by which the cartridge box is successively opened and cartridges are dropped gravitationally into the magazine as the box is opened. Guide mechanisms receive the cartridges within the magazine and align the cartridges into successive substantially parallel columns. Spring mechanisms bias the columns toward a magazine interface that is received by the magazine well of the associated firearm. Springs urge the columns upwardly such that one column of cartridges is fed through the interface to the firing mechanism of the weapon until depleted. At the instant one cartridge column is depleted, another column is pivoted into alignment with the interface and the associated spring mechanism operates to bias that column of cartridges into the interface. The procedure continues until the bulk loaded quantity of cartridges are depleted.

Claims

1. A large capacity quick load magazine for firearm cartridges adapted to be mounted to the magazine well of a firearm and for receiving cartridges in bulk from a cartridge box, said magazine comprising:

a cartridge well interface means having a cartridge guide channel for receiving a column of cartridges and having a discharge opening;

a magazine case having an interface end joined to the interface means;

said interface means being pivotally connected to said magazine case at the interface end thereof;

cartridge guide means within the magazine case having an open end for receiving a quantity of cartridges in a plurality of columns;

spring means associated with the guide means for selectively biasing columns of cartridges received by the cartridge guide means toward the interface means;

pivot means mounting the guide means and spring means within the housing for pivotal movement therein such that each column may be pivoted in succession into alignment with the cartridge guide channel of the interface; and

access means for exposing the guide means for bulk cartridge charging directly from the cartridge box; and

indexing means for actuating the pivot means to move successive columns into alignment with said cartridge guide channel in response to depletion of cartridges from columns previously aligned with said channel.

2. The magazine of claim 1 wherein said access means is comprised of:

a case cover mounted to the magazine case for movement between an operative position covering the cartridge guide means and an inoperative position exposing the magazine interior for bulk loading of cartridges.

3. The magazine of claim 1 wherein said access means is comprised of:

a case cover;

slide means mounting the case cover to the case for movement thereon between an operative position covering the cartridge guide means and an inoperative position exposing the cartridge guide means for bulk cartridge loading; and

wherein said spring means is operatively mounted to the slide means for movement therewith between said operative and inoperative positions.

4. The magazine of claim 3 wherein said guide means is mounted to said case for slidable movement thereon in an arc about an axis.

5. The magazine of claim 1 further comprising locking means for selective operation to lock the case cover in the operative position.

6. The magazine of claim 1 wherein said cartridge spring means is slidably mounted to the magazine case for translational motion longitudinally with respect to said columns between an operative position within the case and an inoperative position spaced from said operative position.

7. The magazine of claim 6 wherein said spring means is comprised of a compression spring for each column of cartridges, mounted to the spring means for movement therewith between the operative and inoperative positions;

and

wherein the cartridge guide means is comprised of spaced fingers mounted to the case for receiving and gathering cartridges received within the case into said columns.

8. The magazine of claim 1 further comprising cartridge box lid stripping means for abutment with and removal of a slidably removable lid of the cartridge box.

9. The magazine of claim 1 further comprising means for receiving and guiding a cartridge box for translational movement relative to said cartridge guide means to open said cartridge box and allow cartridges to be fed into the cartridge guide means.

10. The magazine of claim 1 wherein said indexing means is comprised of:

biasing means for urging the guide means to pivot the columns of cartridges toward the cartridge guide channel;

a cartridge engaging abutment means adjacent the top open end of the guide means and said cartridge guide channel for releasably engaging successive cartridges of each cartridge column within the guide means as said cartridges are fed by said spring means to the guide channel to prevent pivotal movement of the guide means only so long as a cartridge remains in a column presently aligned with the guide channel and for permitting said biasing means to pivot the guide means to bring a successive column of cartridges into alignment with said guide channel only when cartridges have been emptied from said column presently aligned with the guide channel.

11. The magazine of claim 1 further comprising:

manually actuatable lockout means interconnecting the spring means and magazine case for selectively locking the spring means in an operative position within the case and for unlocking the spring means to permit motion thereof to an inoperative position projecting outward of the magazine case.

12. A large capacity quick load magazine for firearm cartridges adapted to be mounted to the magazine well of a firearm and for receiving cartridges in bulk from a cartridge box, said magazine comprising:

a cartridge well interface means having a cartridge guide channel for receiving a column of cartridges and having a discharge opening;

a magazine case having an interface end joined to the interface means;

cartridge guide means within the magazine case having an open end for receiving a quantity of cartridges in a plurality of columns;

spring means associated with the guide means for selectively biasing columns of cartridges received by the cartridge guide means toward the interface means;

pivot means mounting the guide means and spring means within the housing for pivotal movement therein such that each column may be pivoted in succession into alignment with the cartridge guide channel of the interface; and

access means for exposing the guide means for bulk cartridge charging directly from the cartridge box;

indexing means for actuating the pivot means to move successive columns into alignment with said cartridge guide channel in response to depletion of cartridges from columns previously aligned with said channel;

cartridge box guide means on the magazine case for slidably receiving and guiding a cartridge box such that columns of cartridges within the box substantially align with columns defined by said guide means; and

cartridge box lid stripping means adjacent the cartridge guide means for abutment with the slidably removable lid of the cartridge box and for stripping the lid from the box such that cartridges within the box may be received by the cartridge guide means.

13. A large capacity quick load magazine for firearm cartridges adapted to be mounted to the magazine well of a firearm and for receiving cartridges in bulk from a cartridge box, said magazine comprising:

a cartridge well interface means having a cartridge guide channel for receiving a column of cartridges and having a discharge opening;

a magazine case having an interface end joined to the interface means;

cartridge guide means within the magazine case having an open end for receiving a quantity of cartridges in a plurality of columns;

spring means associated with the guide means for selectively biasing columns of cartridges received by the cartridge guide means toward the interface means;

pivot means mounting the guide means and spring means within the housing for pivotal movement therein such that each column may be pivoted in succession into alignment with the cartridge guide channel of the interface; and

access means for exposing the guide means for bulk cartridge charging directly from the cartridge box;

indexing means for actuating the pivot means to move successive columns into alignment with said cartridge guide channel in response to depletion of cartridges from columns previously aligned with said channel;

cartridge box lid stripping means adjacent the cartridge guide means for abutment with the slidably removable lid of the cartridge box and for stripping the lid from the box as the box is moved translationally over the guide means such that cartridges within the box may be shifted gravitationally from the box and received by the guide means.

14. A large capacity quick load magazine for firearm cartridges adapted to be mounted to the magazine well of a firearm and for receiving cartridges in bulk from a cartridge box, said magazine comprising:

a cartridge well interface means having a cartridge guide channel for receiving a column of cartridges and having a discharge opening;

a magazine case having an interface end joined to the interface means;

cartridge guide means within the magazine case having an open end for receiving a quantity of cartridges in a plurality of columns;

spring means associated with the guide means for selectively biasing columns of cartridges received by the cartridge guide means toward the interface means;

pivot means mounting the guide means and spring means within the housing for pivotal movement therein such that each column may be pivoted in succession into alignment with the cartridge guide channel of the interface; and

access means for exposing the guide means for bulk cartridge charging directly from the cartridge box;

indexing means for actuating the pivot means to move successive columns into alignment with said cartridge guide channel in response to depletion of cartridges from columns previously aligned with said channel;

wherein said interface means is movably mounted to the magazine case at the interface end thereof and movable between a closed position spanning the case interface end and covering the open end of the cartridge guide means, and an open position clear of and exposing the open end of the cartridge guide means; and

means for receiving and guiding a cartridge box for manual translational movement along said cartridge guide means and for opening said cartridge box during said movement, such that cartridges held therein may be transferred gravitationally to the cartridge guide means through the open end thereof.

15. A large capacity quick load magazine for firearm cartridges adapted to be mounted to the magazine well of a firearm and for receiving cartridges in bulk from a cartridge box, said magazine comprising:

a cartridge well interface means having a cartridge guide channel for receiving a column of cartridges and having a discharge opening;

a magazine case having an interface end joined to the interface means;

cartridge guide means within the magazine case having an open end for receiving a quantity of cartridges in a plurality of columns;

spring means associated with the guide means for selectively biasing columns of cartridges received by the cartridge guide means toward the interface means;

pivot means mounting the guide means and spring means within the housing for pivotal movement therein such that each column may be pivoted in succession into alignment with the cartridge guide channel of the interface; and

access means for exposing the guide means for bulk cartridge charging directly from the cartridge box;

indexing means for actuating the pivot means to move successive columns into alignment with said cartridge guide channel in response to depletion of cartridges from columns previously aligned with said channel; and

means for receiving and guiding a cartridge box for manual translational movement along said cartridge guide means and for opening said cartridge box during said movement, such that cartridges held therein may be transferred gravitationally to the cartridge guide means through the open end thereof.

16. A large capacity quick load magazine for firearm cartridges of the type supplied in a box and with the cartridges being held within said box in substantially parallel columns, each cartridge being elongated along an axis and having a rim at one end, said cartridges being axially removable rim first from said box, said magazine comprising:

a cartridge well interface means adapted to be releasably received within the cartridge well of a firearm, and having a cartridge guide channel formed therein for receiving a column of cartridges arranged with cartridge axes substantially parallel, said channel including an open top end adapted to discharge successive cartridges axially;

a hollow magazine case having a top end mounting said interface means;

access means on said case for receiving a cartridge box such that said cartridges can be axially transferred gravitationally from said box to said case;

cartridge guide means for receiving cartridges from said box and for aligning cartridges received through said access means into substantially parallel columns;

spring means within said case for engaging and biasing said cartridge columns toward the top end of the case;

indexing means for successively shifting said guide means and the columns of cartridges held by said guide means into alignment with said cartridge guide channel such that said successive columns of cartridges are urged to move through said channel by said spring means; and

cartridge box lid removing means for removing the cartridge box lid responsive to relative translational motion of the cartridge box over the cartridge guide means such that cartridges within said box drop gravitationally to be received by the cartridge guide means.

17. The magazine of claim 16 wherein the access means includes an opening formed into said case for receiving said cartridge box.

18. The magazine of claim 16 further comprising:

slide means mounting the spring means for slidable movement between an operative position within the magazine case and an inoperative position outward of the case; and

lockout means manually operable to lock the spring means in the operative position and to unlock the spring means thereby permitting movement thereof to the inoperative position.

19. The magazine of claim 16 further comprising cartridge box guide means for receiving and guiding a cartridge box for relative translational motion over said cartridge guide means such that columns of cartridges within said box substantially align with columns defined by said cartridge guide means.

20. A large capacity, quick loading magazine for firearm cartridges of the type supplied in bulk quantities within lid closed boxes, and with the cartridges in each box being unidirectionally oriented and axially removable from said box, said magazine comprising:

a magazine case having a cartridge discharge opening at a firearm interface end thereof;

cartridge loading means on said magazine case for progressively removing a cartridge box lid and for progressively receiving cartridges axially from said box as said box is opened, responsive to prescribed translational movement of said box lid relative to the box; and

means for delivering each cartridge received by said loading means to said cartridge discharge opening.

21. The magazine of claim 20 wherein said loading means is comprised of:

a stationary box lid opening means on said magazine case for engaging and stripping the lid from the box in response to prescribed movement of said box.

22. The magazine of claim 21 wherein said loading means is further comprised of

cartridge box guide means on said magazine case for supporting said cartridge box in relation to the box opening means.

23. A process for loading a firearm magazine having a box opening means and a cartridge receiving guide, with cartridges being loaded directly from a cartridge box having a box closure, the cartridges being unidirectionally oriented and axially removable from one side of said box by removal of said box closure, comprising the steps of:

orienting the magazine such that the cartridge receiving guide faces upwardly;

orienting said cartridge box such that said one side faces downwardly;

supporting the box on the magazine along a plane substantially parallel to and above the cartridge receiving guide;

engaging the box closure against the box opening means on said magazine;

engaging the box closure against the box opening means on said magazine;

moving the box relative to the opening means along the plane over the cartridge receiving guide such that the closure is progressively opened by said opening means;

progressively dropping cartridges gravitationally and axially from the box and into the cartridge receiving guide means; and

removing the box from said magazine.

24. The process as claimed by claim 23 wherein the step of moving the box relative to the opening means is accomplished by holding the closure and opening means stationary and moving the box translationally over the cartridge receiving guide.

25. The process as claimed by claim 23 wherein the step of dropping cartridges into the cartridge receiving guide is accomplished by:

removing axial support for the cartridges at an elevation above the guide less than the overall axial cartridge dimension such that the cartridges will drop only partially clear of the box to the guide.

26. A magazine for holding and dispensing cartridges to a firearm, comprising:

interface means having a cartridge guide channel for conveying a column of cartridges to a discharge opening adapted to convey the cartridges to the firearm;

a magazine case having an interface end connected to said interface means;

cartridge guide means movably mounted within the magazine case for pivotal motion therewithin and having an open end for receiving a quantity of cartridges in a plurality of columns;

a movable case section movably mounted to the magazine case;

a spring assembly mounted to the movable case section and adapted to interposition a plurality of spring elements into the cartridge guide means to bias columns of cartridges toward the interface means so that each column of cartridges is individually fed;

pivot means mounting the spring assembly to the movable case section to allow pivotal motion of the spring assembly and cartridge guide means during operation of the magazine;

access means for exposing the cartridge guide for loading;

indexing means for actuating the pivot means to move successive columns of cartridges into alignment with said cartridge guide channel in response to depletion of cartridges from columns previously aligned with said channel; and

case locking means for fixing the movable case section relative to the magazine case.

27. The magazine of claim 26 wherein the interface means is movably connected to the magazine case.

28. The magazine of claim 26 wherein the interface means is pivotally connected to the magazine case.

29. The magazine of claim 26 wherein the interface means is movably connected to the magazine and adapted to allow installation of cartridges into the magazine while the interface means is mounted in a magazine well in said firearm.

30. The magazine of claim 26 wherein the interface means is pivotally connected to the magazine case and adapted to be locked into a closed position by said movable case section.

31. The magazine of claim 26 further comprising cartridge box unloading means for opening a cartridge box containing a plurality of cartridges.

32. The magazine of claim 31 wherein the cartridge box unloading means includes a box lid removing means which engages a box lid on said cartridge box when the cartridge box is moved relative to said magazine.

33. The magazine of claim 26 wherein said indexing means comprises an abutment formed on interior surfaces of the magazine case adjacent the interface end and is adapted to engage end surfaces of cartridges in a column being fed through the cartridge guide channel.