公开(公告)号：US10982923B2

公开(公告)日：2021-04-20

申请号：US16811175

申请日：2020-03-06

申请人： The United States of America, as represented by the Secretary of the Navy

发明人： Steven Seghi ,  Kevin Kellar

IPC分类号： F41A21/48

摘要： The invention relates to quick acting interfaces that allow for easier transportation and maintenance of precision rifles. Embodiments include an interface with an engaging segment and a receiving segment that engage one another and lock together. The engaging segment may have a series of connective bearings that fit into indentations inside the receiving segment. Embodiments allow a firearm to be modulated such that a barrel of the firearm may be disassembled without the need of any specialized equipment and reassembled without impacting the firearm's accuracy or reliability. Embodiments are scalable such that multiple interfaces can be used to adjust the total length of the firearm barrel.

公开(公告)号：US20230008033A1

公开(公告)日：2023-01-12

申请号：US17860174

申请日：2022-07-08

申请人： The United States of America, as represented by the Secretary of the Navy

发明人： Kevin Kellar

IPC分类号： G01C19/72 ,  G01C21/16

摘要： Disclosed is an improved Sagnac interferometer sensor for inertial navigation and guidance systems (e.g., inertial measurement units (IMUs)) that affords a reduced area architecture. The sensor implements optical folding architectures and techniques to increase the optical path length of the Sagnac interferometer. The folding optical architecture increases the total optical path, which thereby increases the total phase difference between two counter-rotating optical beams in the Sagnac interferometer. The technique increases accuracy and durability of IMUs without the need for an increase in size, weight, and cost.

公开(公告)号：US11614301B2

公开(公告)日：2023-03-28

申请号：US17202819

申请日：2021-03-16

申请人： The United States of America, as represented by the Secretary of the Navy

发明人： Steven Seghi ,  Kevin Kellar

IPC分类号： F41A21/48

摘要： The invention relates to quick acting interfaces that allow for easier transportation and maintenance of precision rifles. Embodiments include an interface with an engaging segment and a receiving segment that engage one another and lock together. The engaging segment may have a series of connective bearings that fit into indentations inside the receiving segment. Embodiments allow a firearm to be modulated such that a barrel of the firearm may be disassembled without the need of any specialized equipment and reassembled without impacting the firearm's accuracy or reliability. Embodiments are scalable such that multiple interfaces can be used to adjust the total length of the firearm barrel.

公开(公告)号：US10393867B2

公开(公告)日：2019-08-27

申请号：US15140892

申请日：2016-04-28

申请人： The United States of America as represented by the Secretary of the Navy

发明人： Kevin Kellar

IPC分类号： G01S13/42 ,  G01S7/03 ,  G01S13/86 ,  G01S17/42 ,  H01Q3/26 ,  G02B6/02 ,  G02B6/293 ,  G01S7/41 ,  G01S13/02

摘要： Methods and systems for determining true time delay from each receiving element of an ‘active electronically scanned array’ (AESA) or a phased array antenna. Embodiments of the invention can include electromagnetic EM elements, optical waveguides, and wavelength selective FGBs are collectively configured as a plurality of dual purpose elements that couples an EM field and uses an induced voltage to change an index of refraction of the optical waveguide's electro-optic (EO) material, where the EO material will also function as a dielectric in an antenna element, where the signals comprising optical signals propagate through EM element acting as phase delay elements, where the measuring system compares the reflected signals with a reference signal with no phase delay to determine said signals phase delay.

公开(公告)号：US20210041201A1

公开(公告)日：2021-02-11

申请号：US16811175

申请日：2020-03-06

申请人： The United States of America, as represented by the Secretary of the Navy

发明人： Steven Seghi ,  Kevin Kellar

IPC分类号： F41A21/48

摘要： The invention relates to quick acting interfaces that allow for easier transportation and maintenance of precision rifles. Embodiments include an interface with an engaging segment and a receiving segment that engage one another and lock together. The engaging segment may have a series of connective bearings that fit into indentations inside the receiving segment. Embodiments allow a firearm to be modulated such that a barrel of the firearm may be disassembled without the need of any specialized equipment and reassembled without impacting the firearm's accuracy or reliability. Embodiments are scalable such that multiple interfaces can be used to adjust the total length of the firearm barrel.

公开(公告)号：US20160320475A1

公开(公告)日：2016-11-03

申请号：US15140892

申请日：2016-04-28

申请人： The United States of America as represented by the Secretary of the Navy

发明人： Kevin Kellar

IPC分类号： G01S13/42 ,  G01S17/42 ,  G01S13/86

CPC分类号： G01S13/42 ,  G01S7/03 ,  G01S7/032 ,  G01S7/41 ,  G01S13/865 ,  G01S17/42 ,  G01S2013/0254 ,  G02B6/02076 ,  G02B6/2938 ,  H01Q3/2676

摘要： Methods and systems for determining true time delay from each receiving element of an ‘active electronically scanned array’ (AESA) or a phased array antenna. Embodiments of the invention can include electromagnetic EM elements, optical waveguides, and wavelength selective FGBs are collectively configured as a plurality of dual purpose elements that couples an EM field and uses an induced voltage to change an index of refraction of the optical waveguide's electro-optic (EO) material, where the EO material will also function as a dielectric in an antenna element, where the signals comprising optical signals propagate through EM element acting as phase delay elements, where the measuring system compares the reflected signals with a reference signal with no phase delay to determine said signals phase delay.

摘要翻译： 用于从“有源电子扫描阵列”（AESA）或相控阵列天线的每个接收元件确定真实时间延迟的方法和系统。 本发明的实施例可以包括电磁EM元件，光波导和波长选择性FGB被共同配置为耦合EM场并使用感应电压以改变光波导的电光学折射率的多个双重目的元件 （EO）材料，其中EO材料还将用作天线元件中的电介质，其中包括光信号的信号通过作为相位延迟元件的EM元件传播，其中测量系统将反射信号与没有参考信号进行比较 相位延迟来确定所述信号的相位延迟。

公开(公告)号：US11828597B2

公开(公告)日：2023-11-28

申请号：US17860174

申请日：2022-07-08

申请人： The United States of America, as represented by the Secretary of the Navy

发明人： Kevin Kellar

IPC分类号： G01C19/72 ,  G01C21/16

CPC分类号： G01C19/72 ,  G01C21/16

摘要： Disclosed is an improved Sagnac interferometer sensor for inertial navigation and guidance systems (e.g., inertial measurement units (IMUs)) that affords a reduced area architecture. The sensor implements optical folding architectures and techniques to increase the optical path length of the Sagnac interferometer. The folding optical architecture increases the total optical path, which thereby increases the total phase difference between two counter-rotating optical beams in the Sagnac interferometer. The technique increases accuracy and durability of IMUs without the need for an increase in size, weight, and cost.

公开(公告)号：US20220018624A1

公开(公告)日：2022-01-20

申请号：US17202819

申请日：2021-03-16

申请人： The United States of America, as represented by the Secretary of the Navy

发明人： Steven Seghi ,  Kevin Kellar

IPC分类号： F41A21/48

摘要： The invention relates to quick acting interfaces that allow for easier transportation and maintenance of precision rifles. Embodiments include an interface with an engaging segment and a receiving segment that engage one another and lock together. The engaging segment may have a series of connective bearings that fit into indentations inside the receiving segment. Embodiments allow a firearm to be modulated such that a barrel of the firearm may be disassembled without the need of any specialized equipment and reassembled without impacting the firearm's accuracy or reliability. Embodiments are scalable such that multiple interfaces can be used to adjust the total length of the firearm barrel.