Single Sweep Whiteboard Eraser
    61.
    发明申请

    公开(公告)号:US20200031159A1

    公开(公告)日:2020-01-30

    申请号:US16522254

    申请日:2019-07-25

    Inventor: Caleb Dykema

    Abstract: A single sweep eraser system allows cleaning of a whiteboard with a single, simple and rapid motion across the board. The system provides track brackets and glides that support a cleaning bar applying sufficient pressure to a cleaning pad extending the height of the board to provide broad area cleaning without the need for the user to “lean in” hard against the cleaning pad. The tracks conveniently hold the cleaning bar off to one side of the board for ready access.

    Spatially Diverse Snowpack Sensing System
    62.
    发明申请

    公开(公告)号:US20190383967A1

    公开(公告)日:2019-12-19

    申请号:US16441707

    申请日:2019-06-14

    Abstract: Multiple spatially diverse and compact weight sensors are statistically combined to reduce or eliminate errors caused by snow bridging. Data transmission using satellite communication minimizes the power consumption of the sensor station further allowing the entire system to be relatively compact and easily transported. The weight sensors may be combined with other standard sensors for measurement of air temperature and snow height, the latter measurement, for example, using ultrasound ranging or the like.

    Micro-Grid Energy Management System
    65.
    发明申请

    公开(公告)号:US20190140477A1

    公开(公告)日:2019-05-09

    申请号:US16185852

    申请日:2018-11-09

    Inventor: Fang Yang Zhao LI

    Abstract: A micro-grid system blending utility power with power from multiple renewable sources including energy storage devices provides power factor correction using the renewable sources and energy storage devices by adjustment of associated converters. A controller maximizes power factor correction by utility source subject to a cost weighting of penalties for exceeding a power factor threshold.

    Devices, systems and methods for shifted delta sum angle measurement

    公开(公告)号:US10222243B2

    公开(公告)日:2019-03-05

    申请号:US15231289

    申请日:2016-08-08

    Inventor: Dennis Mikkelson

    Abstract: Disclosed herein are systems and methods for angle measurement. According to one embodiment, the angle of rotation between a first movable portion of the device and a second fixed portion of the device is measured based on the times when a plurality of marks on a third rotating portion of the device are sensed by a plurality of sensors on both the first movable and the second fixed portions of the device. The embodiment utilizes an electronic computation device to analyze the times and provide an accurate measurement of the angle.

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