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公开(公告)号:US20200247770A1
公开(公告)日:2020-08-06
申请号:US16854265
申请日:2020-04-21
Inventor: Christopher J. Wohl, JR. , John W. Connell , Emilie J. Siochi , Joseph G. Smith, JR.
IPC: C07D305/08 , C08G65/333 , C08G65/322 , C08G65/18 , C08G73/10 , C09D179/08
Abstract: Copoly(imide oxetane) materials are disclosed that can exhibit a low surface energy while possessing the mechanical, thermal, chemical and optical properties associated with polyimides. The copoly(imide oxetane)s are prepared using a minor amount of fluorinated oxetane-derived oligomer with sufficient fluorine-containing segments of the copoly(imide oxetane)s migrate to the exterior surface of the polymeric material to yield low surface energies. Thus the coatings and articles of manufacture made with the copoly(imide oxetane)s of this invention are characterized as having an anisotropic fluorine composition. The low surface energies can be achieved with very low content of fluorinated oxetane-derived oligomer. The copolymers of this invention can enhance the viability of polyimides for many applications and may be acceptable where homopolyimide materials have been unacceptable.
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公开(公告)号:US20200239988A1
公开(公告)日:2020-07-30
申请号:US16787823
申请日:2020-02-11
Applicant: University of Florida Research Foundation, Inc. , United States Of America As Represented By The Administrator of NASA
Inventor: MICHELE VIOLA MANUEL , CHARLES ROBERT FISHER , MARIA CLARA WRIGHT
IPC: C22F1/00 , C22C1/10 , C22F1/043 , C22F1/057 , C22C21/14 , C22C1/04 , B22D19/00 , C22C49/14 , B32B15/20 , B22F1/00 , C22C21/02 , B22D21/00 , C22C49/06
Abstract: Disclosed herein is a composite comprising a metal alloy matrix; where the metal alloy matrix comprises aluminum in an amount greater than 50 atomic percent; a first metal and a second metal; where the first metal is different from the second metal; and where the metal alloy matrix comprises a low temperature melting phase and a high temperature melting phase; where the low temperature melting phase melts at a temperature that is lower than the high temperature melting phase; and a contracting constituent; where the contracting constituent exerts a compressive force on the metal alloy matrix at a temperature between a melting point of the low temperature melting phase and a melting point of the high temperature melting phase or below the melting points of the high and low temperature melting phases.
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公开(公告)号:US10717548B2
公开(公告)日:2020-07-21
申请号:US15713747
申请日:2017-09-25
Inventor: Luis H. Santos Soto
Abstract: A deployable multi-section boom comprising a first hinge assembly including a base section adapted to be attached to a structure, a movable section that is pivotably attached to the base section and a first boom attached to the movable section. The first hinge assembly is configured to allow the first boom to pivot in a first direction to a first predetermined maximum angle with respect to the base section. A first constant torque assembly constantly urges the first boom to pivot in the first direction and includes a component attached to the base section of the first hinge assembly. The multi-section boom includes a second hinge assembly that includes a first section attached to the first boom and a second section that is pivotably attached to the first section. A second boom is attached to the second section of the second hinge assembly wherein the second hinge assembly allows the second boom to pivot in a second direction to a second predetermined maximum angle with respect to the first boom. A second constant torque assembly constantly urges the second boom to pivot in the second direction and includes a component that is attached to the first section of the second hinge assembly. The first constant torque assembly and second constant torque assembly cooperate to configure the multi-section boom in a fully deployed state wherein the constant torque applied to the first boom causes the entire multi-section boom to pivot in the first direction while the constant torque applied to the second boom causes the second boom to simultaneously pivot in the second direction with respect to the first boom while the entire multi-section boom continues to pivot in the first direction. The multi-section boom is fully deployed when the first boom pivots to the first predetermined maximum angle and the second boom pivots to the second predetermined angle.
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公开(公告)号:US20200227169A1
公开(公告)日:2020-07-16
申请号:US16244555
申请日:2019-01-10
Inventor: Steven A. Curtis
Abstract: A method and apparatus for correcting Body Mass Index (BMI) where a plurality of inputs, such as, subject's sex, mass, height, waist size, body temperature, average outside temperature, room temperature, and hours spent outside per day are stored to compute a corrected BMI (BMIC). The BMIC is in turn used to accurately minimize metabolic syndrome inflammation to extend life expectancy through a temporal psychologically stable human diet in a calorie rich environment.
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公开(公告)号:US10705539B2
公开(公告)日:2020-07-07
申请号:US16348726
申请日:2017-11-30
Applicant: Nissan North America, Inc. , United States of America as Represented by the Administrator of NASA
Inventor: Liam Pedersen , Maarten Sierhuis , Hans Utz , Mauro Della Penna , Terrence Fong , Mark Allan , Maria Bualat , Eric Schafer
Abstract: Methods and systems for providing remote support and negotiating problem situations of autonomous operation of vehicles based on signal states and vehicle information are described. The disclosed technology receives state data for the vehicles by an apparatus such as a remote vehicle support apparatus. The state data indicates a respective current state for the vehicles. The vehicles are each assigned to respective remote vehicle support queues based on the respective state data. An indication that one of the vehicles is requesting remote support is received by the remote vehicle support apparatus. In response to a determination that a change in the state data indicates that autonomous operation of the one of the vehicles is operating outside of defined parameter values, the remote support is provided to the one of the vehicles through a communications link by transmitting instruction data to modify the autonomous operation of the one of the vehicles.
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公开(公告)号:US10659094B1
公开(公告)日:2020-05-19
申请号:US16371254
申请日:2019-04-01
Inventor: Joseph Knuble , Jeffrey Piepmeier , Kevin Horgan , Jared Lucey
Abstract: A microwave radiometer with reduced volume, mass, phase noise, and power requirements and increased harmonic rejection, includes a fixed number of frequency banks configured to provide signals within separate, non-overlapping local oscillation frequency bands, a detection circuit configured to detect one or more microwave RF signals, and an RF downconverter configured to mix the signals within the separate, non-overlapping local oscillation frequency bands with the one or more microwave RF signals to provide a continuous range of down converted frequencies.
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公开(公告)号:US10656131B1
公开(公告)日:2020-05-19
申请号:US16109093
申请日:2018-08-22
Inventor: Steven A. Bailey , Thomas Hanisco
Abstract: Cavity enhanced absorption spectroscopy (CEAS) may include a pulsed light emitting diode (LED) configured to emit a light towards a photomultiplier tube (PMT). CEAS may also include a cell, which includes a pair of reflective mirrors located at opposite ends of the cell. The pair of mirrors are configured to bounce the light back and forth a plurality of times increasing the effective path length of the cell. The PMT is configured to detect the emitted light for ozone absorption measurement.
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公开(公告)号:US10647439B1
公开(公告)日:2020-05-12
申请号:US16564382
申请日:2019-09-09
Inventor: Raymond F. Beach
Abstract: A hybrid propulsion system for an aircraft is provided that includes a turbine engine, a first electric machine assembly connected to the turbine engine, a second electric machine assembly driven by the first electric machine assembly, and multiple third electric machine assemblies driven by the first electric machine assembly, wherein the multiple third electric machines provide a thrust output to propel the aircraft.
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公开(公告)号:US10569939B1
公开(公告)日:2020-02-25
申请号:US15075542
申请日:2016-03-21
Inventor: Paulo J. Younse
Abstract: An axially sealing plug may not require modification of a hole being sealed in a tube or pipe. The plug may only require an axial load for activation (not torque), work independently of temperature, require no explosives, and be lightweight and compact. The plug may include a housing or a seal cup that includes at least one tooth on an outer surface and a ramp on an inner surface. The plug may also include a ferrule including a beveled, curved, or chamfered lower end. The ferrule is configured to be inserted inside the housing or seal cup.
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公开(公告)号:US10516246B2
公开(公告)日:2019-12-24
申请号:US15685932
申请日:2017-08-24
Inventor: Mark A. Stephen
IPC: H01S3/00 , G02B27/12 , G02B27/28 , H01S5/00 , G02B27/10 , G02B27/14 , H01S3/067 , G02B5/18 , G02B6/00 , H01S3/16 , H01S5/125
Abstract: The present invention is related to laser technology which enables efficient, passive, coherent beam combination from distributed gain sources. The present invention includes a novel architecture which coherently combines the power from multiple sources, and which adds considerable flexibility to laser gain materials for many applications. The novel architecture of the present invention combines two techniques: 1) beam splitting and combination; and 2) phase-locking (i.e., maintaining a common phase relationship between multiple beams), using reflective gratings. Thus, the present invention addresses important limitations in laser technology: efficiency, power scaling and wavelength selectivity.
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