Patents by Inventor Brian L. Nakayama
Brian L. Nakayama 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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Publication number: 20200263952Abstract: An accessory mounting interface for a firearm, and a related method, are disclosed. The interface has a firearm accessory, a first elongated fastener, and a second fastener rotationally mated to the first elongated fastener. The first elongated fastener has right-handed threading and is arranged through a through hole in the firearm accessory with a first end extending below first and second halves of a first slot protrusion of the firearm accessory. The second fastener has a length greater than a width, the length measured along a longitudinal axis of the second fastener, the second fastener having a plurality of straight edges. At least one of the plurality of straight edges prevents the second fastener from rotating further than a closed position when the at least one of the straight edges abuts a sidewall of an elongated slot in the firearm.Type: ApplicationFiled: November 21, 2019Publication date: August 20, 2020Inventors: Michael T. Mayberry, William Bradley Bennett, Timothy Eric Roberts, Duane Liptak, Brian L. Nakayama
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Publication number: 20200191520Abstract: The present disclosure describes a foldable firearm that collapses into a folded state under spring pressure. The foldable firearm may include a foldable grip assembly. The foldable grip assembly may include a foldable pistol grip, a foldable trigger assembly, a folding bar, and a foldable hand stop. The foldable grip assembly may fold into the top shell of the foldable firearm. The foldable firearm may also include an ambidextrous charging handle assembly that may include a bottom portion, a top portion, a guide bar, and two opposing charging handles. The charging handles may be pulled to unfold the foldable firearm, and/or butterflied such that pivoting one charging handle causes the other charging handle to pivot. The first-pivoted charging handle may then be pulled rearwards to unfold the firearm. The first-pivoted charging handle may then be pulled further rearwards to rack the slide of the foldable firearm.Type: ApplicationFiled: February 25, 2020Publication date: June 18, 2020Inventors: Nicholas Kielsmeier, Brian L. Nakayama, Jeremy M. Fiester, Michael T. Mayberry
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Patent number: 10677550Abstract: A magazine assembly for a firearm and a related method are disclosed. The assembly has a magazine housing defining a track, and a follower assembly. The magazine housing is configured to constrain a cartridge as the cartridge is moved within the magazine assembly such that majority of a proximal surface area of the cartridge does not contact the magazine housing, and a distal tip of the cartridge does not contact the magazine housing.Type: GrantFiled: November 27, 2018Date of Patent: June 9, 2020Assignee: Magpul Industries Corp.Inventors: Timothy Eric Roberts, Michael T. Mayberry, Brian L. Nakayama, Richard M. Fitzpatrick, Eric Nakayama, William Bradley Bennett
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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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Patent number: 10612887Abstract: The present disclosure describes a foldable firearm that collapses into a folded state under spring pressure. The foldable firearm may include a foldable grip assembly. The foldable grip assembly may include a foldable pistol grip, a foldable trigger assembly, a folding bar, and a foldable hand stop. The foldable grip assembly may fold into the top shell of the foldable firearm. The foldable firearm may also include an ambidextrous charging handle assembly that may include a bottom portion, a top portion, a guide bar, and two opposing charging handles. The charging handles may be pulled to unfold the foldable firearm, and/or butterflied such that pivoting one charging handle causes the other charging handle to pivot. The first-pivoted charging handle may then be pulled rearwards to unfold the firearm. The first-pivoted charging handle may then be pulled further rearwards to rack the slide of the foldable firearm.Type: GrantFiled: September 26, 2019Date of Patent: April 7, 2020Assignee: Magpul Industries Corp.Inventors: Nicholas Kielsmeier, Brian L. Nakayama, Jeremy M. Fiester, Michael T. Mayberry
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Publication number: 20200088493Abstract: The present disclosure describes a foldable firearm that collapses into a folded state under spring pressure. The foldable firearm may include a foldable grip assembly. The foldable grip assembly may include a foldable pistol grip, a foldable trigger assembly, a folding bar, and a foldable hand stop. The foldable grip assembly may fold into the top shell of the foldable firearm. The foldable firearm may also include an ambidextrous charging handle assembly that may include a bottom portion, a top portion, a guide bar, and two opposing charging handles. The charging handles may be pulled to unfold the foldable firearm, and/or butterflied such that pivoting one charging handle causes the other charging handle to pivot. The first-pivoted charging handle may then be pulled rearwards to unfold the firearm. The first-pivoted charging handle may then be pulled further rearwards to rack the slide of the foldable firearm.Type: ApplicationFiled: September 26, 2019Publication date: March 19, 2020Inventors: Nicholas Kielsmeier, Brian L. Nakayama, Jeremy M. Fiester, Michael T. Mayberry
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Patent number: 10551143Abstract: A quick detach mount and method are disclosed. The mount includes an accessory receiving portion shaped to receive a quick detach interface, and a first arm extending from the accessory receiving portion. The quick detach mount is shaped to receive a first fastener and a second fastener, whereby the quick detach mount is shaped distribute a force from the accessory receiving portion.Type: GrantFiled: August 25, 2016Date of Patent: February 4, 2020Assignee: Magpul Industries Corp.Inventors: NIcholas Kielsmeier, Brian L. Nakayama, Michael T. Mayberry, Timothy Eric Roberts, William Bradley Bennett
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Patent number: 10520279Abstract: An accessory mounting interface for a firearm, and a related method, are disclosed. The interface has a firearm accessory, a first elongated fastener, and a second fastener rotationally mated to the first elongated fastener. The first elongated fastener has right-handed threading and is arranged through a through hole in the firearm accessory with a first end extending below first and second halves of a first slot protrusion of the firearm accessory. The second fastener has a length greater than a width, the length measured along a longitudinal axis of the second fastener, the second fastener having a plurality of straight edges. At least one of the plurality of straight edges prevents the second fastener from rotating further than a closed position when the at least one of the straight edges abuts a sidewall of an elongated slot in the firearm.Type: GrantFiled: March 20, 2018Date of Patent: December 31, 2019Assignee: Magpul Industries Corp.Inventors: Michael T. Mayberry, William Bradley Bennett, Timothy Eric Roberts, Duane Liptak, Brian L. Nakayama
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Patent number: 10443971Abstract: The present disclosure describes a foldable firearm that collapses into a folded state under spring pressure. The foldable firearm may include a foldable grip assembly. The foldable grip assembly may include a foldable pistol grip, a foldable trigger assembly, a folding bar, and a foldable hand stop. The foldable grip assembly may fold into the top shell of the foldable firearm. The foldable firearm may also include an ambidextrous charging handle assembly that may include a bottom portion, a top portion, a guide bar, and two opposing charging handles. The charging handles may be pulled to unfold the foldable firearm, and/or butterflied such that pivoting one charging handle causes the other charging handle to pivot. The first-pivoted charging handle may then be pulled rearwards to unfold the firearm. The first-pivoted charging handle may then be pulled further rearwards to rack the slide of the foldable firearm.Type: GrantFiled: December 20, 2018Date of Patent: October 15, 2019Assignee: Magpul Industries Corp.Inventors: Nicholas Kielsmeier, Brian L. Nakayama, Jeremy Fiester, Michael T. Mayberry
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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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Patent number: 10371482Abstract: An accessory mounting interface and method are disclosed. The interface has an upper portion having a firearm accessory and at least one through hole extending from a first surface to a second surface of the upper portion, the upper portion having a first post portion with a first side surface and a first flange. A first elongated fastener is arranged through the through hole and has a first end extending below the second surface of the upper portion. The interface also has a second post portion that is movable between a first configuration defining a first transverse distance between the first and second side surfaces and a second configuration defining a second transverse distance between the first and second side surfaces, the first transverse distance greater than the second transverse distance. The first flange substantially opposes the second flange when the second post portion is in the first configuration.Type: GrantFiled: March 13, 2018Date of Patent: August 6, 2019Assignee: Magpul Industries Corp.Inventors: Timothy Eric Roberts, Michael T. Mayberry, William Bradley Bennett, Duane Liptak, Brian L. Nakayama, Eric Nakayama
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Publication number: 20190195595Abstract: The present disclosure describes a foldable firearm that collapses into a folded state under spring pressure. The foldable firearm may include a foldable grip assembly. The foldable grip assembly may include a foldable pistol grip, a foldable trigger assembly, a folding bar, and a foldable hand stop. The foldable grip assembly may fold into the top shell of the foldable firearm. The foldable firearm may also include an ambidextrous charging handle assembly that may include a bottom portion, a top portion, a guide bar, and two opposing charging handles. The charging handles may be pulled to unfold the foldable firearm, and/or butterflied such that pivoting one charging handle causes the other charging handle to pivot. The first-pivoted charging handle may then be pulled rearwards to unfold the firearm. The first-pivoted charging handle may then be pulled further rearwards to rack the slide of the foldable firearm.Type: ApplicationFiled: December 20, 2018Publication date: June 27, 2019Inventors: Nicholas Kielsmeier, Brian L. Nakayama, Jeremy Fiester, Michael T. Mayberry
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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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Publication number: 20190086172Abstract: A magazine assembly for a firearm and a related method are disclosed. The assembly has a magazine housing defining a track, and a follower assembly. The magazine housing is configured to constrain a cartridge as the cartridge is moved within the magazine assembly such that majority of a proximal surface area of the cartridge does not contact the magazine housing, and a distal tip of the cartridge does not contact the magazine housing.Type: ApplicationFiled: November 27, 2018Publication date: March 21, 2019Inventors: Timothy Eric Roberts, Michael T. Mayberry, Brian L. Nakayama, Richard M. Fitzpatrick, Eric Nakayama, William Bradley Bennett
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Patent number: 10184741Abstract: A magazine assembly for a firearm and a related method are disclosed. The assembly has a magazine housing defining a track, and a follower assembly. The magazine housing is configured to constrain a cartridge as the cartridge is moved within the magazine assembly such that majority of a proximal surface area of the cartridge does not contact the magazine housing, and a distal tip of the cartridge does not contact the magazine housing.Type: GrantFiled: November 17, 2016Date of Patent: January 22, 2019Assignee: Magpul Industries Corp.Inventors: Timothy Eric Roberts, Michael T. Mayberry, Brian L. Nakayama, Richard M. Fitzpatrick, Eric Nakayama, William Bradley Bennett
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Patent number: 10166658Abstract: A wrench and a method for performing gunsmithing operations is disclosed. The wrench may have a first end and a second end. The first end may have an integrated two-sided castle nut and flash hider wrench aperture, and the second end may have a tool interface. The aperture may have a plurality of raised elements for engaging indentations in a castle nut, each of the raised elements extending at least one of inwardly from a wall section of the aperture and upwardly from a first face of the wrench. The aperture may have a flash hider cutout portion.Type: GrantFiled: April 15, 2015Date of Patent: January 1, 2019Assignee: Magpul Industries Corp.Inventors: William Bradley Bennett, Michael T. Mayberry, Jeremy Fiester, Lance Johnston, Jonathan Cross, Brian L. Nakayama
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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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Publication number: 20180328693Abstract: An accessory mounting interface for a firearm, and a related method, are disclosed. The interface has a firearm accessory, a first elongated fastener, and a second fastener rotationally mated to the first elongated fastener. The first elongated fastener has right-handed threading and is arranged through a through hole in the firearm accessory with a first end extending below first and second halves of a first slot protrusion of the firearm accessory. The second fastener has a length greater than a width, the length measured along a longitudinal axis of the second fastener, the second fastener having a plurality of straight edges. At least one of the plurality of straight edges prevents the second fastener from rotating further than a closed position when the at least one of the straight edges abuts a sidewall of an elongated slot in the firearm.Type: ApplicationFiled: March 20, 2018Publication date: November 15, 2018Inventors: Michael T. Mayberry, William Bradley Bennett, Timothy Eric Roberts, Duane Liptak, Brian L. Nakayama
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Patent number: D849869Type: GrantFiled: January 3, 2018Date of Patent: May 28, 2019Assignee: Magpul Industries Corp.Inventors: Nicholas Kielsmeier, Brian L. Nakayama, Jeremy Fiester, Michael T. Mayberry