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: 9297609Abstract: A hand guard attachment system for releasably attaching a hand guard to a firearm is disclosed herein. The system includes the hand guard having a proximal end configured to engage a forward end of a receiver of the firearm. The system further includes a tensioning assembly configured to interface between the hand guard and the forward end of the firearm. The tensioning assembly is further configured to selectively maintain an engaged position between the hand guard and the firearm such that the hand guard is releasably attached to the firearm without interfering with, or requiring removal of, the barrel and/or barrel nut connected to the receiver.Type: GrantFiled: March 13, 2013Date of Patent: March 29, 2016Assignee: RA Brands, L.L.C.Inventor: Eric C. Burt
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Publication number: 20150241152Abstract: 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: February 26, 2015Publication date: August 27, 2015Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Patent number: 9062922Abstract: A revolver type cylinder with a plurality of chambers for a shotgun. The rotating cylinder is generally hexagonal in cross-section and formed as an injection molded plastic part with openings that receive metal chamber sleeves. The cylinder has a rotation axis and a seventh opening surrounding the axis. The cylinder is mounted to, and rotatable on a receiver on a rotor and a cylinder pin captured within the seventh opening so as to prevent rotation of the cylinder pin with respect to the cylinder body. The cylinder pin has portions forming a central axial opening which extends along the rotational axis and a spring arranged to retract the cylinder pin into the cylinder body. A trigger linkage is mounted for movement in the central axial opening for linking a trigger to a firing mechanism through the opening.Type: GrantFiled: August 14, 2014Date of Patent: June 23, 2015Assignee: LINEWEIGHT, LLCInventors: Eric C. Burt, Caleb Clark Crye
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Patent number: 8991086Abstract: 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 15, 2014Date of Patent: March 31, 2015Assignee: Magpul Industries Corp.Inventors: Richard N. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Publication number: 20140352189Abstract: 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 15, 2014Publication date: December 4, 2014Inventors: Richard N. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Patent number: 8839543Abstract: 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: December 5, 2013Date of Patent: September 23, 2014Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Patent number: 8839709Abstract: A rail mountable shotgun employs a bullpup configuration and a revolver type cylinder with a plurality of chambers. A trigger is connected through the cylinder to a firing mechanism contained in a housing behind the cylinder to fire a shotgun shell contained in the chamber when the chamber is aligned with the barrel of the shogun.Type: GrantFiled: January 9, 2014Date of Patent: September 23, 2014Assignee: Lineweight LLCInventors: Caleb Clark Crye, Eric C. Burt
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Publication number: 20140215878Abstract: 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: December 5, 2013Publication date: August 7, 2014Applicant: Magpul Industries CorpInventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Publication number: 20140068987Abstract: A hand guard attachment system for releasably attaching a hand guard to a firearm is disclosed herein. The system includes the hand guard having a proximal end configured to engage a forward end of a receiver of the firearm. The system further includes a tensioning assembly configured to interface between the hand guard and the forward end of the firearm. The tensioning assembly is further configured to selectively maintain an engaged position between the hand guard and the firearm such that the hand guard is releasably attached to the firearm without interfering with, or requiring removal of, the barrel and/or barrel nut connected to the receiver.Type: ApplicationFiled: March 13, 2013Publication date: March 13, 2014Applicant: RA BRANDS, L.L.C.Inventor: Eric C. Burt
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Patent number: 8640373Abstract: A new sling mount for firearms is disclosed. The sling mount in particular also serves as a recoil lug for the firearm. At least one loop extends outward from the sling mount for use in attaching a sling. This passage may require a hole to be cut into the casing of the firearm for accommodation. The shape, size, contours and location of the sling mount will be dependent upon the intended weapon platform. In any event, the at least one loop provides attachment for a sling while also avoiding entanglement of the sling with a folding stock.Type: GrantFiled: July 15, 2011Date of Patent: February 4, 2014Assignee: Magpul Industrusties Corp.Inventor: Eric C. Burt
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Patent number: 8635796Abstract: 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: November 30, 2011Date of Patent: January 28, 2014Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Patent number: 8539871Abstract: A non-reciprocating, self-engaging charging handle is disclosed. It comprises a forward latch mounted upon a sliding body with a protruding handle. The latch positively engages the firearm's bolt carrier group when the handle is brought forward into contact therewith. A secondary latching system secures the charging handle to the upper receiver when not in use and disengages automatically when and only when a user desires to operate the handle. The charging handle's secondary latching system is also claimed as a stand-alone system.Type: GrantFiled: November 13, 2012Date of Patent: September 24, 2013Assignee: Magpul Industries CorpInventors: Eric C. Burt, Brian L. Nakayama, Richard M. Fitzpatrick, Michael T. Mayberry
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Publication number: 20130228065Abstract: A non-reciprocating, self-engaging charging handle is disclosed. It comprises a forward latch mounted upon a sliding body with a protruding handle. The latch positively engages the firearm's bolt carrier group when the handle is brought forward into contact therewith. A secondary latching system secures the charging handle to the upper receiver when not in use and disengages automatically when and only when a user desires to operate the handle. The charging handle's secondary latching system is also claimed as a stand-alone system.Type: ApplicationFiled: November 13, 2012Publication date: September 5, 2013Applicant: MAGPUL INDUSTRIES CORP.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt, Brian L. Nakayama
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Patent number: 8484882Abstract: The present invention is a rail mounted back-up sight with at least one, but preferred two, illumination apparatuses mounted thereon. The back-up sight features a sight housing that is configured to selectively alternate between a stowed and a spring-biased deployed position. Any type of illumination apparatus may be used, but the preferred apparatus is a flashlight, mounted upon wither side of a sight base. Either a front or a rear sight may be utilized as could different types of illumination apparatuses.Type: GrantFiled: December 14, 2010Date of Patent: July 16, 2013Assignee: Magpul Industries Corp.Inventors: Travis D. Haley, Eric C. Burt, Richard M. Fitzpatrick, Michael T. Mayberry
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Publication number: 20120317857Abstract: 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: November 30, 2011Publication date: December 20, 2012Applicant: MAGPUL INDUSTRIES CORP.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Patent number: D702792Type: GrantFiled: September 13, 2012Date of Patent: April 15, 2014Assignee: RA Brands, L.L.C.Inventors: Eric C. Burt, Ethan Lessard
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Patent number: D702793Type: GrantFiled: September 13, 2012Date of Patent: April 15, 2014Assignee: RA Brands, L.L.C.Inventors: Eric C. Burt, Ethan Lessard
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Patent number: D715885Type: GrantFiled: January 11, 2013Date of Patent: October 21, 2014Assignee: RA Brands, L.L.C.Inventors: Robert Silvers, Eric C. Burt
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Patent number: D716403Type: GrantFiled: September 13, 2012Date of Patent: October 28, 2014Assignee: RA Brands, L.L.C.Inventors: Eric C. Burt, Ethan Lessard
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Patent number: D750192Type: GrantFiled: June 3, 2014Date of Patent: February 23, 2016Assignee: RA Brands, L.L.C.Inventors: Robert Silvers, Eric C. Burt