Retainer for catching ejected cartridge cases from shotguns

Abstract

A retainer is shown for catching ejected cartridge cases from shotguns. The retainer includes a) a base adapted for being mounted on a shotgun; and b) an elongate member adapted for being releasably fastened to the base. The elongate member includes i) a core of one or more magnets; and ii) a cover adapted for covering the core of one or more magnet(s).

Claims

1. A retainer (100) adapted for catching ejected cartridge cases (14) from shotguns (10), said retainer (100) comprising: a base (110) adapted for being mounted on a shotgun (10); and an elongate member (120) configured for releasable fastening to said base (110); wherein the elongate member (120) comprises: a core (122) of one or more magnets (123); and a cover (124) configured for covering said core (122) of one or more magnets (123).

2. The retainer (100) according to claim 1, wherein the one or more magnets (123) comprise one or more permanent magnets arranged to form a relatively weak magnetic field on a first side face (126) of the elongate member (120), and a relatively strong magnetic field on a second, opposite side face (127) of the elongate member (120), and wherein the relatively strong magnetic field is facing away from the base (110).

3. The retainer (100) according to claim 2, wherein the one or more permanent magnets are arranged as a Halbach array.

4. The retainer (100) according to claim 2, wherein the core (122) of one or more magnets is magnetically shielded with a shield (129) at the first side face (126).

5. The retainer (100) according to claim 4, wherein the shield (129) is made from multiple layers of sheet metal.

6. The retainer (100) according to claim 4, wherein the shield (129) is made from a material having a high magnetic permeability.

7. The retainer (100) according to claim 4, wherein the cover (124) is configured with a rounded top face (128).

8. The retainer (100) according to claim 7, wherein the cover (124) is configured with the first side face (126) having a rounded shape facing towards the base (110).

9. The retainer (100) according to claim 8, wherein the cover (124) is configured with the second, opposite side face (127) having a straight shape facing away from the base (110).

10. The retainer (100) according to claim 7, wherein the elongate member (120) comprises one or more flexible elongated rods or bristles (130) configured to reduce speed of an ejected cartridge case (14).

11. The retainer (100) according to claim 10, wherein said elongated rods or bristles (130) extend upwards relative to the rounded top face (128) of said cover (124).

12. The retainer (100) according to claim 1, wherein the cover (124) comprises fastening means (121) adapted for being releasably fastened to the base (110).

13. The retainer (100) according to claim 1, wherein the base (110) is fastened to the shotgun (10) by gluing, welding, or with screws or bolts.

14. The retainer (100) according to claim 1, positioned substantially parallel to a barrel of said shotgun (10).

15. The retainer (100) according to claim 1, wherein the elongate member (120), when fastened to the base (110), is configured for movement relative to the base (110).

16. The retainer (100) according to claim 1, wherein the one or more magnets (123) are rare earth magnets.

17. A shotgun comprising the retainer (100) according to claim 1.

18. A method comprising mounting the retainer (100) according to claim 1 to a shotgun.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0029] FIG. 1 shows a perspective view of a shotgun with a retainer mounted in accordance with various embodiments of the invention.

[0030] FIG. 2 shows a perspective view of a retainer in accordance with various embodiments of the invention, where the base is removed, and with three cartridge cases attached thereto.

[0031] FIG. 3 shows a cross-sectional view of the retainer of FIG. 2.

[0032] FIG. 4 shows an end view of a retainer in accordance with various embodiments of the invention, where the base is removed.

[0033] FIGS. 5-7 show examples of the core of the retainer in accordance with various embodiments of the invention.

[0034] FIGS. 8-12 show examples of the position of elongated rods or groups of bristles on the elongate member.

DETAILED DESCRIPTION OF THE INVENTION

[0035] FIG. 1 shows a perspective view of a shotgun 10 with an ejection port 12. A retainer 100 is mounted in close relation to the ejection port 12. The retainer 100 is adapted for catching ejected cartridge cases 14 leaving the ejection port 12 during use and comprises a base 110 adapted for being mounted on a shotgun, and an elongate member 120 adapted for being releasably fastened to said base 110. 8. When mounted on the shotgun 10, the elongate member 120 is adapted positioned substantially parallel to the barrel of said shotgun 10.

[0036] FIG. 2 shows a perspective view of a retainer in accordance with various embodiments of the invention, where the base is removed, and with three cartridge cases 14 attached to the elongate member. The elongate member 120 comprises (best seen in FIG. 3) a core 122, and a cover 124 covering said core 122. The cover 124 (FIGS. 2-4) is configured with a rounded top face 128, and a straight side face 127 facing away from the base 110. The cover 124 comprises fastening means 121 adapted for being releasably fastened to the base (not shown).

[0037] The core may comprise different constructions, and two different examples are shown in FIGS. 5-7. Both examples are arranged to form a relatively weak magnetic field on a first side of the elongate member, and a relatively strong magnetic field on the second opposite side of the elongate member. The core is positioned such that the relatively strong magnetic field is facing away from the base.

[0038] The first example (FIG. 5) represents a core comprising a plurality of permanent magnets 123 arranged as a Halbach array. The second example represents a core comprising one or more magnets 123, and where the magnets are magnetically shielded with a shield 129 at the side face 126 facing towards the base.

[0039] FIGS. 8-12 show examples of the position of elongated rods or groups of bristles 130 on the elongate member 120. The elongated rods or groups of bristles 130 are present to reduce the speed of an ejected cartridge case (not shown), whereby the magnet can easier catch it. The number of elongated rods or bristles may vary depending on the type of cartridge, such as the caliber, or the size of the cartridge case. In FIG. 8, the elongate member 120 comprises a single flexible elongated rod or bristle 130. The elongated rod or bristle 130 extends upwards relative to the top face 128 of the cover.

[0040] The elongated rods or bristles 130 may be positioned at the rear end (relative to the shot gun) of the elongated member as shown in FIGS. 8, 9, and 11.

[0041] Alternatively, or in combination, they may be positioned in line along the length of the elongated member as shown in FIGS. 10-12.

REFERENCES

[0042] 10 Shotgun [0043] 12 Ejection port [0044] 14 Cartridge case [0045] 100 Retainer [0046] 110 Base [0047] 120 Elongate member [0048] 121 Fastening means [0049] 122 Core [0050] 123 Magnet [0051] 124 Cover [0052] 126 First side/face of elongate member [0053] 127 Second side/face of elongate member [0054] 128 Top face of elongate member [0055] 129 Shield [0056] 130 Rod or bundle of bristles