SECTIONABLE FLOOR HEATING SYSTEM
    151.
    发明申请

    公开(公告)号:US20180335218A1

    公开(公告)日:2018-11-22

    申请号:US15977373

    申请日:2018-05-11

    Abstract: A heating device for a floor includes a membrane, a plurality of heating elements attached to the membrane, at least one positively charged electrode attached to each of the heating elements and at least one negatively charged electrode attached to each of the heating elements, where the at least one positively charged electrode and the at least one negatively charged electrode are connected to an electrical power source and supply electrical power to the heating elements. The heating elements, the at least one positively charged electrode and the at least one negatively charged electrode are arranged on the membrane so that cutting of the membrane along a cutting line in any direction across the membrane does not disrupt the supply of electrical power to the heating elements.

    BALL DROP IRIS FOR VERTICAL IMPACT TESTING
    154.
    发明申请

    公开(公告)号:US20180209884A1

    公开(公告)日:2018-07-26

    申请号:US15414424

    申请日:2017-01-24

    Inventor: Robert T. PEDDLE

    CPC classification number: G01N3/303 G01M7/08

    Abstract: A ball drop iris is provided for use in a ball drop testing apparatus. Included on the iris is a lower housing having an upper mounting flange having a ball opening and a body depending from the flange, the body defining a passage through which a test ball passes. A control ring is disposed on the upper mounting surface for sliding, rotating action relative to the lower housing. A plurality of iris petals is provided, each operationally connected to the control ring and to the upper mounting flange to pivot between a closed position in which the ball opening is blocked, and an open position in which the petals are simultaneously retracted and the opening is clear for passage of a test ball.

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