Magazine opener

Patent metadata

Field	Value
Publication number	US-10451370-B2
Application number	US-201715592155-A
Country	US
Kind code	B2
Filing date	May 10, 2017
Priority date	May 10, 2017
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

A magazine opener for removing a floor plate of a firearm magazine, wherein the floor plate defines a hole and the magazine defines a side wall, wherein the opener includes: a handle having a first end and a second free end; a first arm pivotally connected with the first end of the handle; a second arm extended from the handle to form an engagement point biased against the side wall; wherein the first arm comprises a L-shaped element inserted into the hole to secure the first arm with the floor plate.

First claim

What is claimed is:

1. A magazine opener for removing a floor plate of a firearm magazine,
a handle having a first end, a second end, and a first arm receiving cavity extended from said first end of said handle, wherein said handle further comprises a blocking wall formed at a bottom side of said first arm receiving cavity;
a first arm having a pivot end pivotally connected to said first end of said handle in an end-to-end manner, wherein said first arm is pivotally moved between an extended position and a stored position, wherein at said extended position, said first arm is pivotally moved out of said first arm receiving cavity of said handle until said first arm is blocked by said blocking wall, wherein at said stored position, said first arm is pivotally folded at said first end of said handle and is concealed in said first arm receiving cavity;
a second arm integrally extended from said handle, wherein a terminus of said first arm is arranged for engaging with the floor plate while said second arm is arranged for biasing against a sidewall of the magazine body as a fulcrum, such that a press force is exerted on said second end of said handle to generate a pulling force to said first arm for removing said floor plate, wherein said first arm further has a L-shaped element formed at said terminus of said first arm opposed to said pivot end thereof, wherein said L-shaped element comprises a vertical member downwardly extended from a bottom surface of said first arm and a transversal pin integrally extended from said vertical member towards a direction opposite to said first arm, wherein said transversal pin is arranged for inserting into a hole of the floor plate.

2. The magazine opener, as recited in claim 1 , wherein a distance between said terminus of said first arm and said engagement point of said second arm is adjustable via a pivotal connection between said pivot end of said first arm and said first end of said handle.

3. The magazine opener, as recited in claim 2 , wherein said distance between said L-shaped element and said engagement point is gradually decreased during said floor plate is removing from said magazine body.

4. The magazine opener, as recited in claim 2 , wherein said second arm has an elongated configuration that a length of said first arm is longer than that said second arm, wherein when said bottom surface of said first arm is blocked by said blocking wall, said terminus of said first arm is positioned below said second arm.

5. The magazine opener, as recited in claim 2 , wherein a magnitude of an angle formed between a longitudinal axis of said handle and said first arm is gradually decreased during the floor plate is removing from the magazine body.

6. The magazine opener, as recited in claim 5 , wherein said engagement surface of said second arm touches with the sidewall of the magazine body while said engagement point of said second arm is moved upwardly towards the floor plate.

7. The magazine opener, as recited in claim 2 , wherein said engagement surface of said second arm touches with the sidewall of the magazine body while said engagement point of said second arm is moved upwardly towards the floor plate.

8. The magazine opener, as recited in claim 1 , wherein said first arm receiving cavity is extended from said first end of said handle and formed at a top portion thereof, wherein at said extended position, said first arm is pivotally moved out of said first arm receiving cavity from said top portion of said handle until said bottom surface of said first arm is blocked by said blocking wall, wherein at said stored position, said first arm is pivotally folded on said top portion of said handle to face said bottom surface of said first arm upward.

9. The magazine opener, as recited in claim 8 , wherein said second arm has an engagement surface defined at a free end of said second arm, and an engaging point defined on said engagement surface for biasing against the sidewall of the magazine body.

10. The magazine opener, as recited in claim 9 , wherein a distance between said terminus of said first arm and said engagement point of said second arm is adjustable via a pivotal connection between said pivot end of said first arm and said first end of said handle.

11. The magazine opener, as recited in claim 9 , wherein said second arm has an elongated configuration that a length of said first arm is longer than that said second arm, wherein when said bottom surface of said first arm is blocked by said blocking wall, said terminus of said first arm is positioned below said second arm.

12. The magazine opener, as recited in claim 1 , wherein said handle further has a polygonal hole formed at said handle between said first and second ends, wherein said second arm is integrally extended from said handle at a position where said polygonal hole is formed on said handle.

13. The magazine opener, as recited in claim 1 , wherein said second arm has an engagement surface defined at a free end of said second arm, and an engaging point defined on said engagement surface for biasing against the sidewall of the magazine body.

14. The magazine opener, as recited in claim 1 , wherein said distance between said L-shaped element and said engagement point is gradually decreased during said floor plate is removing from said magazine body.

15. The magazine opener, as recited in claim 1 , wherein a magnitude of an angle formed between a longitudinal axis of said handle and said first arm is gradually decreased during the floor plate is removing from the magazine body.

Assignees

• Cheng Carson
• Tian Changan
• Thomas Richard
• Ncstar Inc

Inventors

• Cheng Carson
• Tian Changan
• Thomas Richard

Classifications

• B66F15/00

  Crowbars or levers · CPC title

• Y10T29/5373

  comprising driver for snap-off-mandrel fastener; e.g., Pop [TM] riveter · CPC title

• F41A11/00 Primary

  Assembly or disassembly features; Modular concepts; Articulated or collapsible guns (F41A3/64, F41A19/10 - F41A19/15, F41A21/48, F41A25/26 take precedence) · CPC title

• F41A9/65

  Box magazines having a cartridge follower · CPC title

• F41A35/00

  Accessories or details not otherwise provided for · CPC title