-
公开(公告)号：US11578707B1
公开(公告)日：2023-02-14
申请号：US17732295
申请日：2022-04-28
发明人： John Downs , Mahdi Mohajeri , Bahram Jadidian
IPC分类号： F03G7/06
摘要： A method for using a shape memory alloy (SMA) with a non-evaporable getter (NEG) employed in a vacuum device is disclosed. The method comprises coupling a NEG component to a SMA component to form an NEG/SMA assembly pair; heating the NEG/SMA assembly pair to activate the NEG component; and packaging the activated NEG component with the SMA component to form an NEG/SMA package having a gas tight seal. The method further comprises installing the NEG/SMA package in the vacuum device; and heating the installed NEG/SMA package such that the SMA component is actuated to expose the activated NEG component to a vacuum chamber in the vacuum device.
-
公开(公告)号：US20240249878A1
公开(公告)日：2024-07-25
申请号：US18159245
申请日：2023-01-25
发明人： Mahdi Mohajeri , Eric Passman
IPC分类号： H01F41/098 , H01F41/064 , H01F41/12
CPC分类号： H01F41/098 , H01F41/064 , H01F41/125
摘要： A method of fabricating a high-temperature bobbin for a solenoid or other electrical assembly includes the step of providing a bobbin configured for use in the assembly. The bobbin is coated with an anti-oxidation composition and an anti-corrosion composition to produce an oxidation/corrosion resistant bobbin. The oxidation/corrosion resistant bobbin is coated with an electrical insulating composition that is resistant to corona discharge at or below a predetermined voltage threshold to produce an insulated and oxidation/corrosion resistant bobbin. The anti-oxidation composition, the anti-corrosion composition, and the electrical insulating composition can withstand temperatures of subzero up to temperature greater than 1000° F.
-
公开(公告)号：US12027925B2
公开(公告)日：2024-07-02
申请号：US17823167
申请日：2022-08-30
发明人： Mahdi Mohajeri , Eric Passman , Bahram Jadidian , James Piascik , Robert Dietrich , Andre Robinson , Jimmy Wiggins , Tom McHugh , Yongbae Jung
CPC分类号： H02K15/067 , H02K15/026 , H02K15/105 , H02K15/12 , Y10T29/49009
摘要： A method of making an electromagnetic coil for use in a high-temperature electromagnetic machine includes pre-coating magnet wire with a high-temperature insulation precursor to produce pre-coated magnet wire, winding, while applying in-situ a glass-ceramic slurry, the pre-coated magnet wire into a predetermined coil shape to produce a wet-wound green coil, and thermally processing the wet-wound green coil to produce a processed coil. In some instances, a second layer of a high-temperature insulation may be applied to the processed coil to produce a further insulated processed coil, and then thermally processing the further insulated processed coil to produce a further processed electromagnetic coil.
-
公开(公告)号：US20240072621A1
公开(公告)日：2024-02-29
申请号：US17823167
申请日：2022-08-30
发明人： Mahdi Mohajeri , Eric Passman , Bahram Jadidian , James Piascik , Robert Dietrich , Andre Robinson , Jimmy Wiggins , Tom McHugh , Yongbae Jung
CPC分类号： H02K15/067 , H02K15/026 , H02K15/105 , H02K15/12
摘要： A method of making an electromagnetic coil for use in a high-temperature electromagnetic machine includes pre-coating magnet wire with a high-temperature insulation precursor to produce pre-coated magnet wire, winding, while applying in-situ a glass-ceramic slurry, the pre-coated magnet wire into a predetermined coil shape to produce a wet-wound green coil, and thermally processing the wet-wound green coil to produce a processed coil. In some instances, a second layer of a high-temperature insulation may be applied to the processed coil to produce a further insulated processed coil, and then thermally processing the further insulated processed coil to produce a further processed electromagnetic coil.
-
公开(公告)号：US20240100499A1
公开(公告)日：2024-03-28
申请号：US17935878
申请日：2022-09-27
发明人： John Downs , Mahdi Mohajeri , Dean Eivind Johnson
CPC分类号： B01J20/0225 , B01J20/04 , G01C19/661
摘要： Systems and methods for oxide-based doping of an evaporable getter are described herein. In certain embodiments, a method includes mixing a first getter material with a second getter material to create a mixed getter material. The method also includes mixing an oxide dopant with the mixed getter material to create a doped getter material. Further, the method includes sealing the doped getter material within a device. Moreover, the method includes applying heat to the doped getter material to cause the doped getter material to emit a doped gas for deposition on internal surfaces of the device.
-
公开(公告)号：US20240093998A1
公开(公告)日：2024-03-21
申请号：US17932612
申请日：2022-09-15
发明人： John Downs , Mahdi Mohajeri , Dean Eivind Johnson
CPC分类号： G01C19/661 , H01J7/183 , H01J29/94
摘要： Systems and methods for a stabilized evaporable getter for increased handleability is provided. In certain embodiments, a method includes preparing a first getter material, a second getter material, and a metal material. Additionally, the method includes mixing the first getter material, the second getter material, and the metal material into a mixed getter material. Further, the method includes placing the mixed getter material into a getter holder. Also, the heat-treating the getter holder at a temperature below an activation temperature for an exothermic reaction of the mixed getter material but above a melting temperature of the metal material.
-
公开(公告)号：US11921046B2
公开(公告)日：2024-03-05
申请号：US17008290
申请日：2020-08-31
发明人： Richard George Rateick, Jr. , Christopher Evans , Bahram Jadidian , Mahdi Mohajeri , Mehrad Mehr
CPC分类号： G01N21/65 , B01D39/2051 , G01J3/0229 , G01J3/44 , B01D2239/025 , B01D2239/0442 , B01D2239/0471 , B01D2239/1216
摘要： In some examples, a method of making a filter includes heating a metal substrate to precipitate a first phase on a surface of the metal substrate from a metal alloy, the metal substrate defining a plurality of apertures configured to allow a gas to pass through the apertures. The metal substrate is the metal alloy including a first metal and a second metal. The method further includes growing a plurality of carbon nanotubes (CNTs) on the surface of the first metal of the first phase, and the CNTs are configured to capture at least one particle.
-
公开(公告)号：US20230261059A1
公开(公告)日：2023-08-17
申请号：US17651092
申请日：2022-02-15
发明人： Mahdi Mohajeri , Eric Passman , Bahram Jadidian
IPC分类号： H01L29/205 , H01L21/02 , H01L29/20 , H01L29/66
CPC分类号： H01L29/205 , H01L21/0254 , H01L29/2003 , H01L29/66462
摘要： A high-temperature heterostructure conductor includes an electrically conductive heterostructure core, a second electrically conductive material, a ceramic layer and a dielectric layer. The electrically conductive heterostructure core includes a first electrically conductive material and an intermetallic layer that is formed on and surrounds the first electrically conductive material. The second electrically conductive material surrounds the intermetallic layer. The ceramic layer is formed or disposed on and surrounds the second electrically conductive material. The dielectric layer is disposed on and surrounding the ceramic layer.
-
公开(公告)号：US20220329133A1
公开(公告)日：2022-10-13
申请号：US17228890
申请日：2021-04-13
发明人： Bahram Jadidian , Eric Passman , Mahdi Mohajeri
摘要： A method for manufacturing an electromagnetic coil with an intentionally engineered heat flow path is provided. The method includes defining at least one preferential heat flow path for heat to flow for the electromagnetic coil. A coil cartridge in which to encase the electromagnetic coil is designed by selecting dimensions of different portions of the insulating coil cartridge that will result in the at least one preferential heat flow path. The electromagnetic coil is then encased in coil cartridge material to produce an encased electromagnetic coil.
-
10.发明申请公开(公告)号：US20220178263A1
公开(公告)日：2022-06-09
申请号：US17116426
申请日：2020-12-09
发明人： Mahdi Mohajeri , Bahram Jadidian
摘要： Disclosed is a superalloy gas turbine engine component including a glass coating. The glass coating is configured for resistance to hot corrosion caused by molten salts of sodium, magnesium, vanadium, and/or sulfur dioxide. The glass coating includes a mixture of two or more metal oxides, which are preferably selected from: barium oxide, silicon oxide, strontium oxide, aluminum oxide, magnesium oxide, calcium oxide, cobalt oxide, boron oxide, iron oxide, zirconium oxide, nickel oxide, and titanium oxide. The glass coating is in fully crystalline form and/or a mixture of crystalline and glass phases, and it has a coefficient of thermal expansion of from about 10 to about 18 μm/m-° C. The glass coating has a thickness over the superalloy gas turbine engine component of about 0.5 mils to about 10 mils.
-
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.015 秒)
