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公开(公告)号：US10444436B1
公开(公告)日：2019-10-15
申请号：US16264956
申请日：2019-02-01
Applicant: Northrop Grumman Systems Corporation
Inventor： Ge Wang
IPC: G02B6/26
Abstract: An exemplary gas cell is adapted to provide wavelength stability to a coherent beam of light. An optic fiber is wound in a plurality winding turns where the optic fiber transports the coherent beam of light from an input fiber end to an output fiber end. An encapsulating material engages and holds the windings in a fixed structure. A plurality of slots define severed portions of the optic fiber windings generally transverse to the windings and portions of the encapsulating material so that the optic fiber is divided into a plurality of end to end segments with open space filling the slots between respective facing ends of the severed optic fibers. A wavelength reference gas is disposed within the open space of the slots so that the beam of light passes from the input fiber end through respective facing ends of the optic fiber segments and wavelength reference gas in the corresponding slots to traverse a path through the plurality of winding turns to the output fiber end.
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2.发明授权公开(公告)号：US10182497B1
公开(公告)日：2019-01-15
申请号：US15176978
申请日：2016-06-08
Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
Inventor： Ge Wang
Abstract: An electronic device on a spacecraft that is enclosed by a conformal coating that is transparent and sufficiently conductive to conduct accumulated charge on the electronic device. The coating includes an intrinsic conducting polymer, such as PEDOT:PSS, dissolved, for example, in an organic solvent, and mixed with a polyurethane, such as Arathane™ 5750 or 5753.
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公开(公告)号：US09583884B1
公开(公告)日：2017-02-28
申请号：US15054424
申请日：2016-02-26
Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
Inventor： Ge Wang
IPC: H01R13/52 , H01R13/648
CPC classification number: H01R13/6485 , H01R13/03 , H01R13/405 , H01R13/748 , H01R43/24 , H01R2107/00
Abstract: A dissipative insert provided within an electrical connector having multiple connector pins and an outer conductive housing where the insert is configured around the pins within the housing and provides structural integrity thereto and prevents a short circuit between the pins and between the pins and the housing. The insert is comprised of a mixture of a polymer and a conductive material that causes the insert to have a volume resistivity in the range of 1×106-1×1010 ohm-cm. In one embodiment, the conductive material is carbon nanotubes.
Abstract translation: 设置在具有多个连接器引脚和外部导电壳体的电连接器内的消散插入件，其中插入件围绕壳体内的销构造并且提供结构完整性并防止销之间以及销和壳体之间的短路。 插入物由聚合物和导电材料的混合物组成，使得插入物的体积电阻率在1×106-1×1010欧姆 - 厘米的范围内。 在一个实施例中，导电材料是碳纳米管。
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公开(公告)号：US10481352B2
公开(公告)日：2019-11-19
申请号：US16027532
申请日：2018-07-05
Applicant: Northrop Grumman Systems Corporation
Inventor： Ge Wang
Abstract: An optical amplifier is provided in which radiation levels experienced by an optical fiber are minimized. A sealed enclosure houses an optical fiber. An input optical signal enters on end of the fiber and an amplified output optical signal exits the other end of the optical fiber. Small particles embedded with a gas fill the interior of the enclosure. An optical pump supplies an amplification laser beam coupled to one of the ends of the optical fiber. Due to energy supplied by the amplification laser beam, the input optical signal is amplified upon exiting the optical fiber. At least a portion of the gas embedded in the small particles is released inside the enclosure when the small particles are subjected to heat to provide a gaseous interior in the enclosure that minimizes radiation levels experienced by the optical fiber due to external radiation.
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公开(公告)号：US10071336B1
公开(公告)日：2018-09-11
申请号：US15414502
申请日：2017-01-24
Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
Inventor： Ge Wang
CPC classification number: B01D53/0407 , B01D2253/1122 , B01D2255/1021 , B01D2255/1023 , B01D2255/2063 , B01D2255/207 , B01D2255/20707 , B01D2255/20723 , B01D2256/18 , B01D2257/104 , B01D2257/702 , B01D2257/80 , B01D2259/4575 , B01J20/0207 , B01J20/0211 , B01J20/0214 , B01J20/0225
Abstract: A gas purification getter for purifying a gas. The getter includes a canister having a cylinder body including a corrugated wall, an inlet end cap coupled to an inlet end of the cylinder body and an outlet end cap coupled to an outlet end of the cylinder body so that the cylinder body, the inlet end cap and the outlet end cap define a sealed chamber. The getter also includes a powder bed of a getter material provided within the chamber so that a flow of the gas from the inlet end to the outlet end is purified by the getter material. Voids in the powder bed when the canister is horizontally oriented are limited to raised portions in the corrugated wall so that there is no short circuit path for the gas to flow from the inlet end to the outlet end.
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Patent Agency Ranking
公开(公告)号：US10006513B1
公开(公告)日：2018-06-26
申请号：US15414487
申请日：2017-01-24
Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
Inventor： Ge Wang
IPC: F16F7/01
CPC classification number: F16F7/015
Abstract: A particle impact damper including an outer body defining an internal cavity and a plurality of spherical particles positioned within the cavity. The spherical particles each include an inner core made of a high density and a high modulus material, such as tungsten, and a thin outer coating made of a high coefficient of friction and low yield strength material, such as aluminum. The cavity has a high coefficient of friction inner surface. The spherical particles can be provided in two sets of particles including a first set having a larger diameter and a second set having a smaller diameter so as to increase the fill ratio of the particles in the cavity.
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公开(公告)号：US09947634B1
公开(公告)日：2018-04-17
申请号：US15621726
申请日：2017-06-13
Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
Inventor： Ge Wang
CPC classification number: H01L24/14 , H01R12/52 , H01R12/712 , H01R13/24 , H05K7/1061
Abstract: A ball grid array (BGA) connector including an outer housing, an insert mounted within the outer housing having a first side and a second side, and a plurality of electrical contacts provided within the insert. The BGA connector also includes a plurality of connector balls electrically coupled to the electrical contacts at the first side of the insert, where some of the connector balls have a low Young's modulus and some of the connector balls have a high Young's modulus such that the high Young's modulus connector balls carry more of a separation load than the low Young's modulus connector balls. In one embodiment, the high Young's modulus connector balls are located around an outer periphery of the BGA. Also, the high modulus connector balls are soldered to larger solder pads than the low modulus connector balls.
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公开(公告)号：US10088641B1
公开(公告)日：2018-10-02
申请号：US15659835
申请日：2017-07-26
Applicant: Northrop Grumman Systems Corporation
Inventor： Ge Wang
IPC: G02B6/42
Abstract: An optical amplifier is provided in which radiation levels experienced by an optical fiber are minimized. A sealed enclosure houses an optical fiber. An input optical signal enters on end of the fiber and an amplified output optical signal exits the other end of the optical fiber. Small particles embedded with a gas fill the interior of the enclosure. An optical pump supplies an amplification laser beam coupled to one of the ends of the optical fiber. Due to energy supplied by the amplification laser beam, the input optical signal is amplified upon exiting the optical fiber. At least a portion of the gas embedded in the small particles is released inside the enclosure when the small particles are subjected to heat to provide a gaseous interior in the enclosure that minimizes radiation levels experienced by the optical fiber due to external radiation.
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公开(公告)号：US10578815B1
公开(公告)日：2020-03-03
申请号：US16536035
申请日：2019-08-08
Applicant: Northrop Grumman Systems Corporation
Inventor： Ge Wang
Abstract: An optical amplifier is provided in which radiation levels experienced by an optical fiber are minimized. A sealed enclosure houses an optical fiber. An input optical signal enters on end of the fiber and an amplified output optical signal exits the other end of the optical fiber. Small particles embedded with a gas fill the interior of the enclosure. An optical pump supplies an amplification laser beam coupled to one of the ends of the optical fiber. Due to energy supplied by the amplification laser beam, the input optical signal is amplified upon exiting the optical fiber. At least a portion of the gas embedded in the small particles is released inside the enclosure when the small particles are subjected to heat to provide a gaseous interior in the enclosure that minimizes radiation levels experienced by the optical fiber due to external radiation.
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公开(公告)号：US09719900B1
公开(公告)日：2017-08-01
申请号：US15139147
申请日：2016-04-26
Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
Inventor： Ge Wang
IPC: G01N3/08
Abstract: This invention installs multiple miniature strain gauges inside a regular dimensioned bolt washer to accurately measure bolt preload. To enhance the strain gauge sensitivity, an alloy with low elastic modulus and high yield strength is selected to fabricate the metal washer. In addition, multiple gauges are connected in series to multiply the effective gauge length and enhance measurement sensitivity. Further, the stain gauges are encapsulated in the middle of the washer as opposed to on the external surface which offers much improved sensitivity and physical protection of the strain gauges.
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