-
公开(公告)号：US09688537B2
公开(公告)日：2017-06-27
申请号：US14611734
申请日：2015-02-02
Applicant: The Boeing Company
Inventor： Keith D. Humfeld
CPC classification number: C01B32/172 , B82Y40/00 , C01B32/16 , C01B32/17 , C01B2202/02 , G01N21/64 , Y10S977/751 , Y10S977/842 , Y10S977/845
Abstract: In one aspect, methods of making semiconducting single-walled carbon nanotubes are described herein. In some implementations, a method of making semiconducting single-walled carbon nanotubes comprises providing a plurality of semiconducting nanotube seeds including (n,m) nanotube seeds and non-(n,m) nanotube seeds. The method further comprises illuminating the plurality of nanotube seeds with a first laser beam having a first wavelength and a second laser beam having a second wavelength, the second wavelength differing from the first wavelength. The first wavelength corresponds to an absorption maximum for a (n,m) carbon nanotube and the second wavelength corresponds to a photoluminescence emission frequency for the (n,m) carbon nanotube.
-
公开(公告)号：US20240085325A1
公开(公告)日：2024-03-14
申请号：US18509402
申请日：2023-11-15
Applicant: The Boeing Company
Inventor： Keith D. Humfeld , Morteza Safai
CPC classification number: G01N21/6402 , G01J3/0232 , G01J3/4406 , G01N2021/6419 , G01N2021/6421 , H01S5/1092
Abstract: An example system for inspecting a surface includes a laser, an optical system, a gated camera, and a control system. The laser is configured to emit pulses of light, with respective wavelengths of the pulses of light varying over time. The optical system includes at least one optical element, and is configured to direct light emitted by the laser to points along a scan line one point at a time. The gated camera is configured to record a fluorescent response of the surface from light having each wavelength of a plurality of wavelengths at each point along the scan line. The control system is configured to control the gated camera such that an aperture of the gated camera is open during fluorescence of the surface but closed during exposure of the surface to light emitted by the laser.
-
公开(公告)号：US20220136825A1
公开(公告)日：2022-05-05
申请号：US17013236
申请日：2020-09-04
Applicant: The Boeing Company
Inventor： Keith D. Humfeld , Morteza Safai
IPC: G01B17/02 , B29C70/38 , G01N29/06 , C08J5/04 , B29C70/02 , B29C70/54 , G01N29/11 , G01N29/07 , B29C70/30 , G01N29/04
Abstract: Systems and methods are provided for ultrasonic imaging of composite parts. One embodiment is a method that includes providing an object having multiple layers of fibers and resin, inducing ultrasonic waves at locations along the object, and attenuating the ultrasonic waves at the regions due to regions interspersed among the layers that each exhibit an elastic modulus distinct from an elastic modulus of the fibers and distinct from an elastic modulus of the matrix. The method further includes receiving the attenuated ultrasonic waves, and analyzing the attenuated ultrasonic waves to determine depths of the regions.
-
14.发明授权公开(公告)号：US10786955B2
公开(公告)日：2020-09-29
申请号：US16036215
申请日：2018-07-16
Applicant: The Boeing Company
Inventor： Keith D. Humfeld , Adam B. Lubchansky
IPC: B29C70/38
Abstract: A method for fabricating a composite structure includes steps of: (1) laying up, with a delivery head of a tape placement machine, a continuous segment of a composite tape on a composite panel to form a flange portion of an initial ply of a composite stiffener; (2) locating a backing plate, coupled to the delivery head, relative to the delivery head and the composite panel; and (3) further layup up, with the delivery head, the continuous segment of the composite tape on the backing plate to form a web portion of the initial ply of the composite stiffener.
-
公开(公告)号：US10705019B2
公开(公告)日：2020-07-07
申请号：US15991292
申请日：2018-05-29
Applicant: The Boeing Company
Inventor： Keith D. Humfeld , Morteza Safai
Abstract: An example system for inspecting a surface includes a laser, an optical system, a gated camera, and a control system. The laser is configured to emit pulses of light, with respective wavelengths of the pulses of light varying over time. The optical system includes at least one optical element, and is configured to direct light emitted by the laser to points along a scan line one point at a time. The gated camera is configured to record a fluorescent response of the surface from light having each wavelength of a plurality of wavelengths at each point along the scan line. The control system is configured to control the gated camera such that an aperture of the gated camera is open during fluorescence of the surface but closed during exposure of the surface to light emitted by the laser.
-
Patent Agency Ranking
16.发明申请公开(公告)号：US20200147902A1
公开(公告)日：2020-05-14
申请号：US16184146
申请日：2018-11-08
Applicant: The Boeing Company
Inventor： Matthew K. Fay , Keith D. Humfeld
Abstract: A method for forming composite materials and associated apparatuses is presented, including positioning at least one electronic component on a lay-up surface. The method also includes positioning a composite on the lay-up surface, where the composite comprises resin and fibers. Additionally, the method includes causing a flow of the resin between the lay-up surface and the fibers. Yet further, the method includes curing the resin to form a cured resin, where the electronic component and the fibers are located in the cured resin. The composite material includes a resin having a shape based on a surface of a lay-up system. Additionally, the composite material includes fibers contained within the resin. Further, the composite materials includes at least one electronic component. The electronic component of the composite material is located in the resin based on a flow of the resin around the electronic component on the surface of the lay-up.
-
公开(公告)号：US10454019B2
公开(公告)日：2019-10-22
申请号：US15280096
申请日：2016-09-29
Applicant: THE BOEING COMPANY
Inventor： Keith D. Humfeld , Morteza Safai
IPC: H01L41/193 , H01L41/316 , H01L41/314
Abstract: A micro electromechanical (mem) device includes a first electrode, a second electrode, and a shaped carbon nanotube with a first end and a second end. The first end of the shaped carbon nanotube is conductively connected to the first electrode and the second end is conductively connected to the second electrode. A system for making the device includes a plurality of electrodes placed outside the growth region of a furnace to produce a controlled, time-varying electric field. A controller for the system is connected to a power supply to deliver controlled voltages to the electrodes to produce the electric field. A mixture of gases is passed through the furnace with the temperature raised to cause chemical vapor deposition (CVD) of carbon on a catalyst. The sequentially time-varying electric field parameterizes a growing nanotube into a predetermined shape.
-
公开(公告)号：US20190291853A1
公开(公告)日：2019-09-26
申请号：US15933334
申请日：2018-03-22
Applicant: The Boeing Company
Inventor： Joseph A. Bolton , Keith D. Humfeld
Abstract: There is provided a hydraulic system for a vehicle. The hydraulic system has a hydraulic rotary actuator assembly rotationally coupled to a road wheel of the vehicle. The hydraulic rotary actuator assembly has a first operating mode, wherein a rotation of the road wheel causes the hydraulic rotary actuator assembly to pump a fluid from a fluid supply system. The hydraulic system further has a variable restrictor assembly coupled to the hydraulic rotary actuator assembly in the vehicle. The variable restrictor assembly controls a flow of the fluid flowing from the hydraulic rotary actuator assembly, to brake the rotation of the road wheel on a ground surface. The hydraulic system further has a variable restrictor controller coupled to the variable restrictor assembly. The variable restrictor controller controls the variable restrictor assembly, so as to enable a variation of a rate of braking of the road wheel on the ground surface.
-
公开(公告)号：US20190127615A1
公开(公告)日：2019-05-02
申请号：US15794328
申请日：2017-10-26
Applicant: The Boeing Company
Inventor： Keith D. Humfeld , Eileen O. Kutscha , Morteza Safai
Abstract: A composite material joined with a curable phenolic resin adhesive, with the phenolic resin adhesive comprising a stiffening agent precursor, and with the stiffening agent precursor selected to react with reaction by-products of the phenolic resin adhesive during curing to produce a reaction product stiffening agent in a cured bonding layer that is detectable by ultrasound, resins comprising the stiffening agent precursor, bonding layers comprising the reaction product stiffening agent, and methods for making the composite material joints and inspecting the composite material joints are disclosed.
-
公开(公告)号：US20180313272A1
公开(公告)日：2018-11-01
申请号：US15582010
申请日：2017-04-28
Applicant: The Boeing Company
Inventor： Scott D. Hartshorn , Keith D. Humfeld
Abstract: Multi-layer thermal insulator apparatus and methods are described. An example multi-layer thermal insulator includes a first thermally insulating layer, a second thermally insulating layer, and a thermally conductive layer positioned between and adjacent to the first thermally insulating layer and the second thermally insulating layer.
-
-
-
-
-
-
-
-
-
Search Results
66
records
(took 0.018 seconds)
