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: 20230304770Abstract: 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: May 4, 2023Publication date: September 28, 2023Inventors: Nicholas Kielsmeier, Brian L. Nakayama, Jeremy M. Fiester, Michael T. Mayberry
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Publication number: 20230304758Abstract: 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: May 4, 2023Publication date: September 28, 2023Inventors: Timothy Eric Roberts, Michael T. Mayberry, Brian L. Nakayama, Richard M. Fitzpatrick, Eric Nakayama, William Bradley Bennett
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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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Patent number: 11680763Abstract: 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: July 7, 2021Date of Patent: June 20, 2023Assignee: 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: 11680771Abstract: 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: January 19, 2022Date of Patent: June 20, 2023Assignee: Magpul Industries Corp.Inventors: Nicholas Kielsmeier, Brian L. Nakayama, Jeremy M. Fiester, Michael T. Mayberry
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Publication number: 20230109948Abstract: 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 23, 2022Publication date: April 13, 2023Inventors: Michael T. Mayberry, William Bradley Bennett, Timothy Eric Roberts, Duane Liptak, Brian L. Nakayama
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Patent number: 11536535Abstract: 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: April 8, 2021Date of Patent: December 27, 2022Assignee: Magpul Industries Corp.Inventors: Michael T. Mayberry, William Bradley Bennett, Timothy Eric Roberts, Duane Liptak, Brian L. Nakayama
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Publication number: 20220136799Abstract: 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: January 19, 2022Publication date: May 5, 2022Inventors: Nicholas Kielsmeier, Brian L. Nakayama, Jeremy M. Fiester, Michael T. Mayberry
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Patent number: 11262159Abstract: 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 16, 2020Date of Patent: March 1, 2022Assignee: Magpul Industries Corp.Inventors: Nicholas Kielsmeier, Brian L. Nakayama, Jeremy M. Fiester, Michael T. Mayberry
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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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Publication number: 20210341241Abstract: 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: July 7, 2021Publication date: November 4, 2021Inventors: Timothy Eric Roberts, Michael T. Mayberry, Brian L. Nakayama, Richard M. Fitzpatrick, Eric Nakayama, William Bradley Bennett
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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: 20210302123Abstract: 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: April 8, 2021Publication date: September 30, 2021Inventors: Michael T. Mayberry, William Bradley Bennett, Timothy Eric Roberts, Duane Liptak, Brian L. Nakayama
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Patent number: 11085718Abstract: 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: March 6, 2020Date of Patent: August 10, 2021Assignee: 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: 11002509Abstract: 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: November 21, 2019Date of Patent: May 11, 2021Assignee: Magpul Industries Corp.Inventors: Michael T. Mayberry, William Bradley Bennett, Timothy Eric Roberts, Duane Liptak, Brian L. Nakayama
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Publication number: 20210102777Abstract: 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 16, 2020Publication date: April 8, 2021Inventors: Nicholas Kielsmeier, Brian L. Nakayama, Jeremy M. Fiester, Michael T. Mayberry
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Patent number: 10900741Abstract: 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: February 25, 2020Date of Patent: January 26, 2021Assignee: MAGPUL INDUSTRIES CORP.Inventors: Nicholas Kielsmeier, Brian L. Nakayama, Jeremy M. Fiester, Michael T. Mayberry
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Publication number: 20200378704Abstract: 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: March 6, 2020Publication date: December 3, 2020Inventors: Timothy Eric Roberts, Michael T. Mayberry, Brian L. Nakayama, Richard M. Fitzpatrick, Eric Nakayama, William Bradley Bennett
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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: 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