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: 8307747Abstract: A non-reciprocating, self-engaging charging handle is disclosed. It comprises a spring biased forward latch mounted upon a sliding body with a protruding handle. The spring bias causes the latch to positively engage 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.Type: GrantFiled: January 19, 2011Date of Patent: November 13, 2012Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt, Brian L. Nakayama
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Publication number: 20120180368Abstract: 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: ApplicationFiled: December 14, 2010Publication date: July 19, 2012Applicant: Magpul Industries Corp.Inventors: Travis D. Haley, Eric C. Burt, Richard M. Fitzpatrick, Michael T. Maybery
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Patent number: 8161861Abstract: The present invention is a battery assist devise to aid in the locking and unlocking of the bolt in a long firearm. The battery assist devise attaches to the both catch button of the firearm and thereafter acts as an extension thereof. The battery assist device comprises an interface head and attachment plate, which secure about the bolt catch button, and a curved lever that protrudes from the head and projects around the underside of the firearm, through the trigger guard area, until it projects slightly on the opposite side of the firearm. The lever then is capable of ambidextrous operation.Type: GrantFiled: August 12, 2009Date of Patent: April 24, 2012Assignee: Magpul Industries Corp.Inventors: Travis D. Haley, Eric C. Burt
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Publication number: 20120011758Abstract: 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: ApplicationFiled: July 15, 2011Publication date: January 19, 2012Applicant: MAGPUL INDUSTRIES CORPInventor: Eric C. Burt
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Publication number: 20110302816Abstract: The present invention is an ammunition magazine, preferably made of a glass fiber 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: January 15, 2009Publication date: December 15, 2011Applicant: MAGPUL INDUSTRIES CORP.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Patent number: 8069601Abstract: The present invention is an ammunition magazine, preferably made of a glass fiber 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: January 15, 2009Date of Patent: December 6, 2011Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
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Patent number: 8061071Abstract: The present invention is a high capacity, non-drum magazine. The high capacity magazine comprises a broad general storage area capable of holding four staggered stacks of ammunition, a unified follower on a spring system biasing the follower and associated ammunition, a central partition a barrier separating two dual staggered round stacks and around which the follower will pass, and a transition area between the feed end of the magazine and the storage area. The spring may be a composite spring system, made of two springs joined in series, or a single, variable constant, spring.Type: GrantFiled: July 17, 2009Date of Patent: November 22, 2011Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Michael Morgan, Eric C. Burt, Eric S. Nakayama
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Patent number: 8006425Abstract: The present invention is a spring-biased folding firearm that stows compactly and safely. The firearm has three main components: a stock, a receiver and a grip/magazine combination. In folding, the stock folds over the receiver, sandwiching the grip/magazine between the components. When folded, the magazine over-inserts into the grip housing, allowing the stock to clear and providing additional safety when stowed by isolating the ammunition feed. A buttplate latches over the open joint to contain the unit and further secure it. When stowed, the bolt is disengaged from the ammunition feed supply, preventing accidental firing, so a loaded round can be safely carried in the chamber—allowing for immediate use of the firearm upon opening. The weapon is deployed through single-handed actuation and is spring-assisted into firing position. Currently the firearm uses readily available aftermarket parts for easier replacement if necessary and does contain hardware for mounting accessories.Type: GrantFiled: April 7, 2009Date of Patent: August 30, 2011Assignee: Magpul Industries Corp.Inventors: Eric C. Burt, Richard M. Fitzpatrick, Michael T. Mayberry
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Patent number: 7958660Abstract: The present invention is an ammunition magazine, preferably made of a glass fiber 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 may include 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.Type: GrantFiled: April 15, 2008Date of Patent: June 14, 2011Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt
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Publication number: 20110005113Abstract: The present invention is an ammunition magazine, preferably made of a glass fiber 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 may include 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.Type: ApplicationFiled: April 15, 2008Publication date: January 13, 2011Applicant: MAGPUL INDUSTRIES CORPInventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt
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Publication number: 20100251591Abstract: The present invention is a battery assist devise to aid in the locking and unlocking of the bolt in a long firearm. The battery assist devise attaches to the both catch button of the firearm and thereafter acts as an extension thereof. The battery assist device comprises an interface head and attachment plate, which secure about the bolt catch button, and a curved lever that protrudes from the head and projects around the underside of the firearm, through the trigger guard area, until it projects slightly on the opposite side of the firearm. The lever then is capable of ambidextrous operation.Type: ApplicationFiled: August 12, 2009Publication date: October 7, 2010Applicant: MAGPUL INDUSTRIES CORP.Inventors: Eric C. Burt, Travis D. Haley
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Publication number: 20100126053Abstract: The present invention is a high capacity, non-drum magazine. The high capacity magazine comprises a broad general storage area capable of holding four staggered stacks of ammunition, a unified follower on a spring system biasing the follower and associated ammunition, a central partition a barrier separating two dual staggered round stacks and around which the follower will pass, and a transition area between the feed end of the magazine and the storage area. The spring may be a composite spring system, made of two springs joined in series, or a single, variable constant, spring.Type: ApplicationFiled: July 17, 2009Publication date: May 27, 2010Applicant: MAGPUL INDUSTRIES CORP.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Michael Morgan, Eric C. Burt, Eric S. Nakayama
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Patent number: D620546Type: GrantFiled: January 16, 2009Date of Patent: July 27, 2010Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt
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Patent number: D622802Type: GrantFiled: May 1, 2009Date of Patent: August 31, 2010Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt
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Patent number: D636453Type: GrantFiled: February 1, 2008Date of Patent: April 19, 2011Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt
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Patent number: D640342Type: GrantFiled: May 23, 2009Date of Patent: June 21, 2011Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt
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Patent number: D643497Type: GrantFiled: October 30, 2009Date of Patent: August 16, 2011Assignee: Magpul Industries Corp.Inventors: Richard M. Fitzpatrick, Eric C. Burt, Michael Mayberry, Travis D. Haley, Bran Abbot, Michael Morgan
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Patent number: D648413Type: GrantFiled: July 6, 2009Date of Patent: November 8, 2011Assignee: Magpul Industries Corp.Inventors: Michael T. Mayberry, Richard M. Fitzpatrick, Eric C. Burt
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Patent number: D652468Type: GrantFiled: August 12, 2009Date of Patent: January 17, 2012Assignee: Magpul Industries Corp.Inventors: Eric C. Burt, Travis D. Haley
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Patent number: D667915Type: GrantFiled: May 10, 2011Date of Patent: September 25, 2012Assignee: Magpul Industries Corp.Inventors: Brian L. Nakayama, Eric C. Burt