Ejector for firearm

US11846476B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11846476-B2
Application numberUS-202217960587-A
CountryUS
Kind codeB2
Filing dateOct 5, 2022
Priority dateOct 7, 2021
Publication dateDec 19, 2023
Grant dateDec 19, 2023

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

An ejector mechanism for a firearm includes an ejector disposed at a forward face of a bolt. The ejector includes a hole designed to provide clearance for the firing pin to pass at least partially through the ejector. The hole may include a counterbore on a rear side of the ejector.

First claim

Opening claim text (preview).

That which is claimed is: 1. An ejector mechanism for a firearm comprising: an ejector disposed at a forward face of a bolt, wherein the ejector comprises a hole designed to provide clearance for a firing pin to pass at least partially through the ejector. 2. The ejector mechanism of claim 1 , wherein the hole comprises a counterbore on a rear side of the ejector. 3. The ejector mechanism of claim 1 , wherein the ejector comprises a rear protrusion that extends into a corresponding hole in the bolt. 4. The ejector mechanism of claim 3 , wherein the corresponding hole in the bolt is disposed at a location on the forward face distal from the firing pin. 5. The ejector mechanism of claim 3 , wherein the corresponding hole in the bolt is disposed at bottom of the forward face. 6. The ejector mechanism of claim 3 , further comprising a spring disposed within the corresponding hole in the bolt. 7. The ejector mechanism of claim 1 , wherein the ejector comprises a flat surface such that the flat surface is defined by an offset from an extractor cavity of the bolt. 8. The ejector mechanism of claim 1 , wherein the ejector comprises a symmetric shape with at least two flat surfaces such that a first flat surface is compatible with an extractor on a right side of the bolt and a second flat surface is compatible with an extractor on a left side of the bolt. 9. The ejector mechanism of claim 1 , wherein the ejector comprises a forward interface comprising (i) a contact surface that protrudes forward and (ii) a secondary surface that is offset rearward from the contact surface. 10. The ejector mechanism of claim 1 , wherein the ejector comprises a retaining hole configured to interface with a retaining pin. 11. An ejector mechanism for a firearm comprising: an ejector disposed at a forward face of a bolt, wherein at least a portion of the ejector is disposed at a center of the forward face of the bolt. 12. The ejector mechanism of claim 11 , wherein the ejector comprises a hole designed to provide clearance for a firing pin to pass at least partially through the ejector. 13. The ejector mechanism of claim 12 , wherein the hole comprises a counterbore on a rear side of the ejector. 14. The ejector mechanism of claim 11 , wherein the ejector comprises a rear protrusion that extends into a corresponding hole in the bolt. 15. The ejector mechanism of claim 14 , wherein the corresponding hole in the bolt is disposed at a location on the forward face distal from the firing pin. 16. The ejector mechanism of claim 14 , wherein the corresponding hole in the bolt is disposed at bottom of the forward face. 17. The ejector mechanism of claim 11 , wherein the ejector comprises a flat surface such that the flat surface is defined by an offset from an extractor cavity of the bolt. 18. The ejector mechanism of claim 11 , wherein the ejector comprises a symmetric shape with at least two flat surfaces such that a first flat surface is compatible with an extractor on a right side of the bolt and a second flat surface is compatible with an extractor on a left side of the bolt. 19. The ejector mechanism of claim 11 , wherein the ejector comprises a forward interface comprising (i) a contact surface that protrudes forward and (ii) a secondary surface that is offset rearward from the contact surface. 20. The ejector mechanism of claim 11 , wherein the ejector comprises a retaining hole configured to interface with a retaining pin.

Assignees

Inventors

Classifications

  • F41A15/14Primary

    the ejector being mounted on or within the bolt; {Extractors per se} · CPC title

  • semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt · CPC title

  • Percussion or firing pins, i.e. fixed or slidably-mounted striker elements; Mountings therefor {(F41A19/26 takes precedence)} · CPC title

  • Breech housings or frames; Receivers · CPC title

  • the ejector being mounted on the breech housing or frame · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US11846476B2 cover?
An ejector mechanism for a firearm includes an ejector disposed at a forward face of a bolt. The ejector includes a hole designed to provide clearance for the firing pin to pass at least partially through the ejector. The hole may include a counterbore on a rear side of the ejector.
Who is the assignee on this patent?
Underwood James Matthew, Underwood Larry Cullen
What technology area does this patent fall under?
Primary CPC classification F41A15/14. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Dec 19 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).