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).
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Patent number: 11761721Abstract: 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: GrantFiled: September 15, 2021Date of Patent: September 19, 2023Assignee: Magpul Industries Corp.Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
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Publication number: 20210404757Abstract: 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: ApplicationFiled: September 15, 2021Publication date: December 30, 2021Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
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Patent number: 11150041Abstract: 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: GrantFiled: January 31, 2020Date of Patent: October 19, 2021Assignee: Magpul Industries Corp.Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
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Publication number: 20200292262Abstract: 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: ApplicationFiled: January 31, 2020Publication date: September 17, 2020Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
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Patent number: 10724824Abstract: 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: GrantFiled: June 3, 2019Date of Patent: July 28, 2020Assignee: Umbrella Corporation Weapons Research GroupInventors: Stephen D. Lister, Eric C. Burt
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Patent number: 10641565Abstract: 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: GrantFiled: November 15, 2018Date of Patent: May 5, 2020Assignee: Magpul Industries Corp.Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
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Publication number: 20190285386Abstract: 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: ApplicationFiled: March 15, 2019Publication date: September 19, 2019Inventor: Eric C. Burt
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Patent number: 10393457Abstract: 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: GrantFiled: August 10, 2018Date of Patent: August 27, 2019Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Publication number: 20190086170Abstract: 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: ApplicationFiled: November 15, 2018Publication date: March 21, 2019Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
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Patent number: 10161698Abstract: 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: GrantFiled: February 10, 2017Date of Patent: December 25, 2018Assignee: Magpul Industries CorpInventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
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Publication number: 20180347928Abstract: 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: ApplicationFiled: August 10, 2018Publication date: December 6, 2018Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Patent number: 10072903Abstract: 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: GrantFiled: July 27, 2017Date of Patent: September 11, 2018Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Publication number: 20170328659Abstract: 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: ApplicationFiled: July 27, 2017Publication date: November 16, 2017Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Patent number: 9746264Abstract: 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: GrantFiled: February 26, 2015Date of Patent: August 29, 2017Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Publication number: 20170153076Abstract: 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: ApplicationFiled: February 10, 2017Publication date: June 1, 2017Inventors: Brian L. Nakayama, Nicholas Kielsmeier, Eric Nakayama, Eric C. Burt
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Patent number: D766380Type: GrantFiled: January 8, 2015Date of Patent: September 13, 2016Assignee: VANTAGE LLCInventors: Caleb Clark Crye, Eric C. Burt
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Patent number: D766381Type: GrantFiled: January 8, 2015Date of Patent: September 13, 2016Assignee: VANTAGE LLCInventors: Caleb Clark Crye, Eric C. Burt
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Patent number: RE49104Abstract: 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: GrantFiled: September 10, 2020Date of Patent: June 14, 2022Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Patent number: D1005437Type: GrantFiled: August 4, 2020Date of Patent: November 21, 2023Inventor: Eric C. Burt
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Patent number: D1026156Type: GrantFiled: February 4, 2021Date of Patent: May 7, 2024Assignee: Reptilia IP LLCInventor: Eric C. Burt