Tool-free dust cover for firearms

Patent metadata

Field	Value
Publication number	US-11085727-B2
Application number	US-201916702878-A
Country	US
Kind code	B2
Filing date	Dec 4, 2019
Priority date	Dec 6, 2018
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

Various examples of a tool-free dust cover for firearms are described. The dust cover is a monolithic piece having a cover plate, a first connection portion, and a second connection portion, with at least one of the first connection portion and the second connection portion being elastically deformable to allow the dust cover to be pivotably coupled to a receiver portion of the firearm. The first connection portion is received in a cavity of a first hinge knuckle on the receiver portion next to a first long side of an ejection port of the receiver portion. The second connection portion is received in a cavity of a second hinge knuckle on the receiver portion next to the first long side of the ejection port. When in an open position, the cover plate uncovers the ejection port. When in a closed position, the cover plate covers the ejection port.

First claim

What is claimed is:

1. A device implementable on a firearm, comprising:
a dust cover as a monolithic piece having a plurality of components comprising:
a cover plate;
a first connection portion; and
a second connection portion,

wherein at least one of the first connection portion and the second connection portion of the dust cover is elastically deformable to allow the dust cover to be pivotably coupled to a receiver portion of the firearm such that:
the first connection portion of the dust cover is received in a cavity of a first hinge knuckle on the receiver portion of the firearm next to a first long side of an ejection port of the receiver portion of the firearm, and
the second connection portion of the dust cover is received in a cavity of a second hinge knuckle on the receiver portion of the firearm next to the first long side of the ejection port,

wherein, when the dust cover is in an open position on the receiver portion of the firearm, the cover plate uncovers the ejection port, and
wherein, when the dust cover is in a closed position on the receiver portion of the firearm, the cover plate covers the ejection port.

2. The device of claim 1 , wherein the at least one of the first connection portion and the second connection portion that is elastically deformable is separated from the cover plate by a gap which, when the dust cover is coupled to the receiver portion of the firearm, extends radially from a dust cover pivotal axis around which the dust cover is pivotably coupled to the receiver portion of the firearm.

3. The device of claim 1 , wherein the plurality of components of the dust cover further comprise a third connection portion, and wherein, when the dust cover is in the closed position on the receiver portion of the firearm, the third connection portion latches onto a second long side of the ejection port opposite the first long side thereof.

4. The device of claim 3 , wherein the third connection portion is elastically deformable to allow a protrusion on the third connection portion to latch onto the second long side of the ejection port.

5. The device of claim 1 , wherein the dust cover is made of polymer.

6. The device of claim 1 , wherein the dust cover is made of metal.

7. A device implementable on a firearm, comprising:
a dust cover as a monolithic piece having a plurality of components comprising:
a cover plate;
a first connection portion;
a second connection portion; and
a third connection portion,

wherein the dust cover is pivotably coupled to a receiver portion of the firearm without any pin such that:
the first connection portion of the dust cover is received in a cavity of a first hinge knuckle on the receiver portion of the firearm next to a first long side of an ejection port of the receiver portion of the firearm, and
the second connection portion of the dust cover is received in a cavity of a second hinge knuckle on the receiver portion of the firearm next to the first long side of the ejection port,

wherein, when the dust cover is in an open position on the receiver portion of the firearm, the cover plate uncovers the ejection port,
wherein, when the dust cover is in a closed position on the receiver portion of the firearm, the cover plate covers the ejection port, and
wherein, when the dust cover is in the closed position on the receiver portion of the firearm, the third connection portion latches onto a second long side of the ejection port opposite the first long side thereof.

8. The device of claim 7 , wherein the third connection portion is elastically deformable to allow a protrusion on the third connection portion to latch onto the second long side of the ejection port.

9. The device of claim 7 , wherein at least one of the first connection portion and the second connection portion of the dust cover is elastically deformable to allow the dust cover to be pivotably coupled to a receiver portion of the firearm.

10. The device of claim 9 , wherein the at least one of the first connection portion and the second connection portion that is elastically deformable is separated from the cover plate by a gap which, when the dust cover is coupled to the receiver portion of the firearm, extends radially from a dust cover pivotal axis around which the dust cover is pivotably coupled to the receiver portion of the firearm.

11. The device of claim 7 , wherein the dust cover is made of polymer.

12. The device of claim 7 , wherein the dust cover is made of metal.

13. An apparatus, comprising:
a firearm comprising a receiver portion having an ejection port; and
a dust cover as a monolithic piece having a plurality of components comprising:
a cover plate;
a first connection portion; and
a second connection portion,

wherein at least one of the first connection portion and the second connection portion of the dust cover is elastically deformable to allow the dust cover to be pivotably coupled to the receiver portion of the firearm such that:
the first connection portion of the dust cover is received in a cavity of a first hinge knuckle on the receiver portion of the firearm next to a first long side of the ejection port, and
the second connection portion of the dust cover is received in a cavity of a second hinge knuckle on the receiver portion of the firearm next to the first long side of the ejection port,

wherein, when the dust cover is in an open position on the receiver portion of the firearm, the cover plate uncovers the ejection port, and
wherein, when the dust cover is in a closed position on the receiver portion of the firearm, the cover plate covers the ejection port.

14. The apparatus of claim 13 , wherein the at least one of the first connection portion and the second connection portion that is elastically deformable is separated from the cover plate by a gap which, when the dust cover is coupled to the receiver portion of the firearm, extends radially from a dust cover pivotal axis around which the dust cover is pivotably coupled to the receiver portion of the firearm.

15. The apparatus of claim 13 , wherein the plurality of components of the dust cover further comprise a third connection portion, and wherein, when the dust cover is in a closed position on the receiver portion of the firearm, the third connection portion latches onto a second long side of the ejection port opposite the first long side thereof.

16. The apparatus of claim 15 , wherein the third connection portion is elastically deformable to allow a protrusion on the third connection portion to latch onto the second long side of the ejection port.

17. The apparatus of claim 13 , wherein the dust cover is made of polymer.

18. The apparatus of claim 13 , wherein the dust cover is made of metal.

19. The apparatus of claim 13 , wherein the receiver portion comprises a receiver based on an AR-15 platform.

20. The apparatus of claim 13 , wherein the firearm comprises a rifle, carbine or pistol based on an AR-15 platform.

Assignees

• Strike Ind Inc

Inventors

• Jen Yihuei

Classifications

• F41A35/02 Primary

  Dust- or weather-protection caps or covers (protecting-caps for trigger guards F41A17/54) · CPC title