Patents by Inventor Eric C. Burt

Eric C. Burt 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).

  • Patent number: 11761721
    Abstract: A firearm magazine assembly and a related method are disclosed. The follower has a top platform, a proximal end, a distal end, and at least one slider rail on a first side of the follower. At least a portion of the at least one slider rail is at a position that is between and remote from both the proximal end of the follower and the distal end of the follower. The housing is shaped to receive the follower. The housing has a first wall having a first recess for receiving the at least one slider rail, the first recess defined by opposing surfaces. At least a portion of the at least one slider rail is shaped to engage the two opposing surfaces to limit tilt of the follower.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: September 19, 2023
    Assignee: Magpul Industries Corp.
    Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
  • Publication number: 20210404757
    Abstract: A firearm magazine assembly and a related method are disclosed. The follower has a top platform, a proximal end, a distal end, and at least one slider rail on a first side of the follower. At least a portion of the at least one slider rail is at a position that is between and remote from both the proximal end of the follower and the distal end of the follower. The housing is shaped to receive the follower. The housing has a first wall having a first recess for receiving the at least one slider rail, the first recess defined by opposing surfaces. At least a portion of the at least one slider rail is shaped to engage the two opposing surfaces to limit tilt of the follower.
    Type: Application
    Filed: September 15, 2021
    Publication date: December 30, 2021
    Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
  • Patent number: 11150041
    Abstract: A firearm magazine assembly and a related method are disclosed. The follower has a top platform, a proximal end, a distal end, and at least one slider rail on a first side of the follower. At least a portion of the at least one slider rail is at a position that is between and remote from both the proximal end of the follower and the distal end of the follower. The housing is shaped to receive the follower. The housing has a first wall having a first recess for receiving the at least one slider rail, the first recess defined by opposing surfaces. At least a portion of the at least one slider rail is shaped to engage the two opposing surfaces to limit tilt of the follower.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: October 19, 2021
    Assignee: Magpul Industries Corp.
    Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
  • Publication number: 20200292262
    Abstract: A firearm magazine assembly and a related method are disclosed. The follower has a top platform, a proximal end, a distal end, and at least one slider rail on a first side of the follower. At least a portion of the at least one slider rail is at a position that is between and remote from both the proximal end of the follower and the distal end of the follower. The housing is shaped to receive the follower. The housing has a first wall having a first recess for receiving the at least one slider rail, the first recess defined by opposing surfaces. At least a portion of the at least one slider rail is shaped to engage the two opposing surfaces to limit tilt of the follower.
    Type: Application
    Filed: January 31, 2020
    Publication date: September 17, 2020
    Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
  • Patent number: 10724824
    Abstract: A grip and grip plug, the grip having a grip cavity extending from an open grip cavity bottom end; a tab aperture and a lock protrusion aperture formed proximate the grip cavity bottom end; the grip plug having a skirt extending from at least a portion of the plug body; a tether portion and a lock protrusion extending from the skirt, wherein the tether portion is positionable through at least a portion of the lock protrusion aperture, and wherein the lock protrusion extends beyond at least a portion of the lock protrusion aperture; and a tab extending from the skirt, proximate a first end portion of the grip plug body, wherein the tab is removably engageable with at least a portion of the tab aperture, such that the grip plug is positionable within at least a portion of the open grip cavity bottom end.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: July 28, 2020
    Assignee: Umbrella Corporation Weapons Research Group
    Inventors: Stephen D. Lister, Eric C. Burt
  • Patent number: 10641565
    Abstract: A firearm magazine assembly and a related method are disclosed. The follower has a top platform, a proximal end, a distal end, and at least one slider rail on a first side of the follower. At least a portion of the at least one slider rail is at a position that is between and remote from both the proximal end of the follower and the distal end of the follower. The housing is shaped to receive the follower. The housing has a first wall having a first recess for receiving the at least one slider rail, the first recess defined by opposing surfaces. At least a portion of the at least one slider rail is shaped to engage the two opposing surfaces to limit tilt of the follower.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 5, 2020
    Assignee: Magpul Industries Corp.
    Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
  • Publication number: 20190285386
    Abstract: Disclosed is a scope mount for a firearm that can be used for firing different types of ammunition without having to re-zero the scope when switching from one type of ammunition to another. The scope mount can include a base and a chassis pivotally mounted to the base. The chassis adjusts both elevation and windage alignments of the scope with respect to the base. Also disclosed is a method of operating a scope assembly mounted to a firearm, including the steps of setting a handle of the scope mount to a rested position corresponding to a first type of ammunition, zeroing the scope when the handle is in the rested position; moving the handle to an engaged position corresponding to a second type of ammunition different from the first type of ammunition; and zeroing the scope when the handle is in the engaged position.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 19, 2019
    Inventor: Eric C. Burt
  • Patent number: 10393457
    Abstract: The present invention is an ammunition magazine, preferably made of a reinforced polymer, utilizing a structurally enhancing ridge, angular guide rails and a follower made to interface with said guide rails to reduce wobble. The preferred embodiment also features a protective cover that distributes forces from the spring to more structurally sound areas of the magazine, thus reducing feed end splay, and an ammunition indication system comprised of at least one window and a noticeable marker on the follower spring. The follower and magazine casing are also designed to interface to prevent the follower from popping out of the feed end and the floor plate of the magazine utilizes a locking plate and sliding relationship between the floor plate, locking plate and magazine to secure the floor plate onto the magazine casing. The cover features built in tools for, among other things, unloading and disassembling the magazine.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: August 27, 2019
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
  • Publication number: 20190086170
    Abstract: A firearm magazine assembly and a related method are disclosed. The follower has a top platform, a proximal end, a distal end, and at least one slider rail on a first side of the follower. At least a portion of the at least one slider rail is at a position that is between and remote from both the proximal end of the follower and the distal end of the follower. The housing is shaped to receive the follower. The housing has a first wall having a first recess for receiving the at least one slider rail, the first recess defined by opposing surfaces. At least a portion of the at least one slider rail is shaped to engage the two opposing surfaces to limit tilt of the follower.
    Type: Application
    Filed: November 15, 2018
    Publication date: March 21, 2019
    Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
  • Patent number: 10161698
    Abstract: A firearm magazine assembly and a related method are disclosed. The follower has a top platform, a proximal end, a distal end, and at least one slider rail on a first side of the follower. At least a portion of the at least one slider rail is at a position that is between and remote from both the proximal end of the follower and the distal end of the follower. The housing is shaped to receive the follower. The housing has a first wall having a first recess for receiving the at least one slider rail, the first recess defined by opposing surfaces. At least a portion of the at least one slider rail is shaped to engage the two opposing surfaces to limit tilt of the follower.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: December 25, 2018
    Assignee: Magpul Industries Corp
    Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
  • Publication number: 20180347928
    Abstract: The present invention is an ammunition magazine, preferably made of a reinforced polymer, utilizing a structurally enhancing ridge, angular guide rails and a follower made to interface with said guide rails to reduce wobble. The preferred embodiment also features a protective cover that distributes forces from the spring to more structurally sound areas of the magazine, thus reducing feed end splay, and an ammunition indication system comprised of at least one window and a noticeable marker on the follower spring. The follower and magazine casing are also designed to interface to prevent the follower from popping out of the feed end and the floor plate of the magazine utilizes a locking plate and sliding relationship between the floor plate, locking plate and magazine to secure the floor plate onto the magazine casing. The cover features built in tools for, among other things, unloading and disassembling the magazine.
    Type: Application
    Filed: August 10, 2018
    Publication date: December 6, 2018
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
  • Patent number: 10072903
    Abstract: The present invention is an ammunition magazine, preferably made of a reinforced polymer, utilizing a structurally enhancing ridge, angular guide rails and a follower made to interface with said guide rails to reduce wobble. The preferred embodiment also features a protective cover that distributes forces from the spring to more structurally sound areas of the magazine, thus reducing feed end splay, and an ammunition indication system comprised of at least one window and a noticeable marker on the follower spring. The follower and magazine casing are also designed to interface to prevent the follower from popping out of the feed end and the floor plate of the magazine utilizes a locking plate and sliding relationship between the floor plate, locking plate and magazine to secure the floor plate onto the magazine casing. The cover features built in tools for, among other things, unloading and disassembling the magazine.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: September 11, 2018
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
  • Publication number: 20170328659
    Abstract: The present invention is an ammunition magazine, preferably made of a reinforced polymer, utilizing a structurally enhancing ridge, angular guide rails and a follower made to interface with said guide rails to reduce wobble. The preferred embodiment also features a protective cover that distributes forces from the spring to more structurally sound areas of the magazine, thus reducing feed end splay, and an ammunition indication system comprised of at least one window and a noticeable marker on the follower spring. The follower and magazine casing are also designed to interface to prevent the follower from popping out of the feed end and the floor plate of the magazine utilizes a locking plate and sliding relationship between the floor plate, locking plate and magazine to secure the floor plate onto the magazine casing. The cover features built in tools for, among other things, unloading and disassembling the magazine.
    Type: Application
    Filed: July 27, 2017
    Publication date: November 16, 2017
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
  • Patent number: 9746264
    Abstract: The present invention is an ammunition magazine, preferably made of a reinforced polymer, utilizing a structurally enhancing ridge, angular guide rails and a follower made to interface with said guide rails to reduce wobble. The preferred embodiment also features a protective cover that distributes forces from the spring to more structurally sound areas of the magazine, thus reducing feed end splay, and an ammunition indication system comprised of at least one window and a noticeable marker on the follower spring. The follower and magazine casing are also designed to interface to prevent the follower from popping out of the feed end and the floor plate of the magazine utilizes a locking plate and sliding relationship between the floor plate, locking plate and magazine to secure the floor plate onto the magazine casing. The cover features built in tools for, among other things, unloading and disassembling the magazine.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: August 29, 2017
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
  • Publication number: 20170153076
    Abstract: A firearm magazine assembly and a related method are disclosed. The follower has a top platform, a proximal end, a distal end, and at least one slider rail on a first side of the follower. At least a portion of the at least one slider rail is at a position that is between and remote from both the proximal end of the follower and the distal end of the follower. The housing is shaped to receive the follower. The housing has a first wall having a first recess for receiving the at least one slider rail, the first recess defined by opposing surfaces. At least a portion of the at least one slider rail is shaped to engage the two opposing surfaces to limit tilt of the follower.
    Type: Application
    Filed: February 10, 2017
    Publication date: June 1, 2017
    Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
  • Patent number: D766380
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: September 13, 2016
    Assignee: VANTAGE LLC
    Inventors: Caleb Clark Crye, Eric C. Burt
  • Patent number: D766381
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: September 13, 2016
    Assignee: VANTAGE LLC
    Inventors: Caleb Clark Crye, Eric C. Burt
  • Patent number: RE49104
    Abstract: The present invention is an ammunition magazine, preferably made of a reinforced polymer, utilizing a structurally enhancing ridge, angular guide rails and a follower made to interface with said guide rails to reduce wobble. The preferred embodiment also features a protective cover that distributes forces from the spring to more structurally sound areas of the magazine, thus reducing feed end splay, and an ammunition indication system comprised of at least one window and a noticeable marker on the follower spring. The follower and magazine casing are also designed to interface to prevent the follower from popping out of the feed end and the floor plate of the magazine utilizes a locking plate and sliding relationship between the floor plate, locking plate and magazine to secure the floor plate onto the magazine casing. The cover features built in tools for, among other things, unloading and disassembling the magazine.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: June 14, 2022
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
  • Patent number: D1005437
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: November 21, 2023
    Inventor: Eric C. Burt
  • Patent number: D1026156
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: May 7, 2024
    Assignee: Reptilia IP LLC
    Inventor: Eric C. Burt