AIR FILTERING DEVICES AND METHODS
    92.
    发明申请

    公开(公告)号:US20170281990A1

    公开(公告)日:2017-10-05

    申请号:US15626631

    申请日:2017-06-19

    Applicant: Elwha LLC

    CPC classification number: A62B7/10 A62B23/025 A62B23/06

    Abstract: A face mask includes an electrostatically-precipitating filter configured to be removably coupled to a face of a user, a controller operatively coupled to the electrostatically-precipitating filter, and a fastening member configured to removably couple the electrostatically-precipitating filter to the face of the user. The controller is configured to selectively control operation of the electrostatically-precipitating filter in response to an input received by the controller.

    Systems to monitor proximity of body portions relative to an environment

    公开(公告)号:US09779607B2

    公开(公告)日:2017-10-03

    申请号:US14665483

    申请日:2015-03-23

    Applicant: Elwha LLC

    CPC classification number: G08B21/0469

    Abstract: Systems are described for monitoring environmental conditions around extremities to aid in preventing damage associated with physical impact. A device embodiment includes, but is not limited to, a deformable substrate configured to conform to a skin surface of a body portion; a sensor assembly coupled to the deformable substrate, the sensor assembly including a proximity sensor configured to generate a sense signal associated with a proximity of an environmental object relative to the body portion; circuitry operably coupled to the sensor assembly and configured to receive the sense signal associated with the proximity of an environmental object relative to the body portion; and a reporting device operably coupled to the circuitry and configured to generate a communication signal associated with one or more of the environmental object or the proximity of the environmental object relative to the body portion responsive to instruction by the circuitry.

    SYSTEMS AND METHODS FOR ENHANCING RECOVERY OF HYDROCARBON DEPOSITS

    公开(公告)号:US20170268319A1

    公开(公告)日:2017-09-21

    申请号:US15606780

    申请日:2017-05-26

    Applicant: Elwha LLC

    Abstract: A method for enhancing the recovery of hydrocarbon deposit includes the step of sensing a material property of an underground volume. A three-dimensional map identifying the spatial variation in the sensed material property of the underground volume is generated. Propagating electromagnetic radiation is transmitted in the volume based on the map. The propagating electromagnetic radiation transmission is varied in at least one of frequency, polarization, wavelength, frequency, amplitude, mode, and phase in response to the variation in the material property of a region within the volume to which the propagating electromagnetic radiation is directed. Accordingly, the volume is heated in a spatially varying manner to heat material in the volume and thereby induce the flow of hydrocarbon deposits from the volume.

    ANTENNA SYSTEM FACILITATING REDUCTION OF INTERFERING SIGNALS

    公开(公告)号:US20170244172A1

    公开(公告)日:2017-08-24

    申请号:US15589551

    申请日:2017-05-08

    Applicant: Elwha LLC

    CPC classification number: H01Q15/0053 H01Q1/28 H01Q3/443 H01Q13/20 H01Q15/0086

    Abstract: Described embodiments include an antenna system and method. The antenna system includes a surface scattering antenna that has an electromagnetic waveguide structure and a plurality of electromagnetic wave scattering elements. The plurality of electromagnetic wave scattering elements are distributed along the waveguide structure, have a respective activatable electromagnetic response to a propagating electromagnetic wave, and produce a controllable radiation pattern. A gain definition circuit defines a radiation pattern configured to acquire a possible interfering signal. The defined antenna radiation pattern has a field of view covering at least a portion of an undesired field of view of an associated antenna. An antenna controller establishes the defined radiation pattern in the surface scattering antenna by activating the respective electromagnetic response of selected electromagnetic wave scattering elements. A correction circuit reduces an influence of the received possible interfering signal in a contemporaneously received signal by the associated antenna.

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