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: 8307747
    Abstract: 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: Grant
    Filed: January 19, 2011
    Date of Patent: November 13, 2012
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt, Brian L. Nakayama
  • Publication number: 20120180368
    Abstract: 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: Application
    Filed: December 14, 2010
    Publication date: July 19, 2012
    Applicant: Magpul Industries Corp.
    Inventors: Travis D. Haley, Eric C. Burt, Richard M. Fitzpatrick, Michael T. Maybery
  • Patent number: 8161861
    Abstract: 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: Grant
    Filed: August 12, 2009
    Date of Patent: April 24, 2012
    Assignee: Magpul Industries Corp.
    Inventors: Travis D. Haley, Eric C. Burt
  • Publication number: 20120011758
    Abstract: 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: Application
    Filed: July 15, 2011
    Publication date: January 19, 2012
    Applicant: MAGPUL INDUSTRIES CORP
    Inventor: Eric C. Burt
  • Publication number: 20110302816
    Abstract: 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: Application
    Filed: January 15, 2009
    Publication date: December 15, 2011
    Applicant: MAGPUL INDUSTRIES CORP.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
  • Patent number: 8069601
    Abstract: 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: Grant
    Filed: January 15, 2009
    Date of Patent: December 6, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
  • Patent number: 8061071
    Abstract: 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: Grant
    Filed: July 17, 2009
    Date of Patent: November 22, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Michael Morgan, Eric C. Burt, Eric S. Nakayama
  • Patent number: 8006425
    Abstract: 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: Grant
    Filed: April 7, 2009
    Date of Patent: August 30, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Eric C. Burt, Richard M. Fitzpatrick, Michael T. Mayberry
  • Patent number: 7958660
    Abstract: 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: Grant
    Filed: April 15, 2008
    Date of Patent: June 14, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt
  • Publication number: 20110005113
    Abstract: 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: Application
    Filed: April 15, 2008
    Publication date: January 13, 2011
    Applicant: MAGPUL INDUSTRIES CORP
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt
  • Publication number: 20100251591
    Abstract: 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: Application
    Filed: August 12, 2009
    Publication date: October 7, 2010
    Applicant: MAGPUL INDUSTRIES CORP.
    Inventors: Eric C. Burt, Travis D. Haley
  • Publication number: 20100126053
    Abstract: 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: Application
    Filed: July 17, 2009
    Publication date: May 27, 2010
    Applicant: MAGPUL INDUSTRIES CORP.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Michael Morgan, Eric C. Burt, Eric S. Nakayama
  • Patent number: D620546
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: July 27, 2010
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt
  • Patent number: D622802
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: August 31, 2010
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt
  • Patent number: D636453
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: April 19, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt
  • Patent number: D640342
    Type: Grant
    Filed: May 23, 2009
    Date of Patent: June 21, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt
  • Patent number: D643497
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: August 16, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Eric C. Burt, Michael Mayberry, Travis D. Haley, Bran Abbot, Michael Morgan
  • Patent number: D648413
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: November 8, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Michael T. Mayberry, Richard M. Fitzpatrick, Eric C. Burt
  • Patent number: D652468
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: January 17, 2012
    Assignee: Magpul Industries Corp.
    Inventors: Eric C. Burt, Travis D. Haley
  • Patent number: D667915
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: September 25, 2012
    Assignee: Magpul Industries Corp.
    Inventors: Brian L. Nakayama, Eric C. Burt