Patents by Inventor David Arthur Headrick

David Arthur Headrick has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Automatic spent magazine ejection and control group
    Patent number: 10955208
    Abstract: A firearm comprising: (i) an ammunition magazine which automatically ejects from the lower receiver of the firearm when the ammunition magazine is spent; (ii) a control group comprising a magazine release mechanism for releasing the magazine catch so that the ammunition magazine is detachable from the lower receiver, a bolt catch engage mechanism for engaging the bolt catch with the bolt carrier and retaining the bolt carrier in the retracted position, and a bolt catch release mechanism for releasing the bolt catch from the bolt carrier and allowing the bolt carrier to move forward, wherein the control group components can be operated by the user on either the left side or right side of the firearm; and (iii) optionally, a charging handle which can be operated by the user on either the left side or right side of the firearm.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: March 23, 2021
    Assignee: 9579087 CANADA INC.
    Inventors: David Arthur Headrick, Leonel Henriques Machado
  • AUTOMATIC SPENT MAGAZINE EJECTION & CONTROL GROUP
    Publication number: 20200080806
    Abstract: A firearm comprising: (i) an ammunition magazine which automatically ejects from the lower receiver of the firearm when the ammunition magazine is spent; (ii) a control group comprising a magazine release mechanism for releasing the magazine catch so that the ammunition magazine is detachable from the lower receiver, a bolt catch engage mechanism for engaging the bolt catch with the bolt carrier and retaining the bolt carrier in the retracted position, and a bolt catch release mechanism for releasing the bolt catch from the bolt carrier and allowing the bolt carrier to move forward, wherein the control group components can be operated by the user on either the left side or right side of the firearm; and (iii) optionally, a charging handle which can be operated by the user on either the left side or right side of the firearm.
    Type: Application
    Filed: November 1, 2019
    Publication date: March 12, 2020
    Inventors: David Arthur HEADRICK, Leonel Henriques MACHADO
  • AUTOMATIC SPENT MAGAZINE EJECTION & CONTROL GROUP
    Publication number: 20200080805
    Abstract: A firearm comprising: (i) an ammunition magazine which automatically ejects from the lower receiver of the firearm when the ammunition magazine is spent; (ii) a control group comprising a magazine release mechanism for releasing the magazine catch so that the ammunition magazine is detachable from the lower receiver, a bolt catch engage mechanism for engaging the bolt catch with the bolt carrier and retaining the bolt carrier in the retracted position, and a bolt catch release mechanism for releasing the bolt catch from the bolt carrier and allowing the bolt carrier to move forward, wherein the control group components can be operated by the user on either the left side or right side of the firearm; and (iii) optionally, a charging handle which can be operated by the user on either the left side or right side of the firearm.
    Type: Application
    Filed: November 1, 2019
    Publication date: March 12, 2020
    Inventors: David Arthur HEADRICK, Leonel Henriques MACHADO
  • Automatic spent magazine ejection and control group
    Patent number: 10508874
    Abstract: A firearm comprising: (i) an ammunition magazine which automatically ejects from the lower receiver of the firearm when the ammunition magazine is spent; (ii) a control group comprising a magazine release mechanism for releasing the magazine catch so that the ammunition magazine is detachable from the lower receiver, a bolt catch engage mechanism for engaging the bolt catch with the bolt carrier and retaining the bolt carrier in the retracted position, and a bolt catch release mechanism for releasing the bolt catch from the bolt carrier and allowing the bolt carrier to move forward, wherein the control group components can be operated by the user on either the left side or right side of the firearm; and (iii) optionally, a charging handle which can be operated by the user on either the left side or right side of the firearm.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: December 17, 2019
    Assignee: 9579087 Canada Inc.
    Inventors: David Arthur Headrick, Leonel Henriques Machado
  • AUTOMATIC SPENT MAGAZINE EJECTION & CONTROL GROUP
    Publication number: 20180149438
    Abstract: A firearm comprising: (i) an ammunition magazine which automatically ejects from the lower receiver of the firearm when the ammunition magazine is spent; (ii) a control group comprising a magazine release mechanism for releasing the magazine catch so that the ammunition magazine is detachable from the lower receiver, a bolt catch engage mechanism for engaging the bolt catch with the bolt carrier and retaining the bolt carrier in the retracted position, and a bolt catch release mechanism for releasing the bolt catch from the bolt carrier and allowing the bolt carrier to move forward, wherein the control group components can be operated by the user on either the left side or right side of the firearm; and (iii) optionally, a charging handle which can be operated by the user on either the left side or right side of the firearm.
    Type: Application
    Filed: May 16, 2016
    Publication date: May 31, 2018
    Applicant: 95790087 Canada Inc.
    Inventors: David Arthur Headrick, Leonel Henriques Machado