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    Electronic interface for water filtration system
    4.
    发明授权
    Electronic interface for water filtration system 有权
    水过滤系统电子接口

    公开(公告)号：US09533243B2

    公开(公告)日：2017-01-03

    申请号：US14073145

    申请日：2013-11-06

    Applicant: Whirlpool Corporation

    Inventor： Christopher A. Kruckenberg ,  John W. Morrison ,  Peter J. Richmond ,  Jeffrey A. Spindler

    IPC: B01D35/143 ,  B01D35/30 ,  C02F1/00 ,  C02F9/00

    CPC classification number: B01D35/143 ,  B01D35/30 ,  B01D2201/302 ,  B01D2201/4007 ,  B01D2201/4015 ,  B01D2201/4046 ,  B01D2201/52 ,  C02F1/003 ,  C02F9/005 ,  C02F2201/004 ,  C02F2201/006 ,  C02F2209/445 ,  C02F2307/12

    Abstract: A water filter includes a filter unit having a body portion adapted to be rotatingly received into a filter head assembly. An engagement protrusion extends from the body portion and is adapted for reception in a complementary receiver in the filter head assembly. An electronic device is disposed on the filter unit having a memory storage unit. A laterally extending key member is disposed on the body portion between the first engagement surface and the second engagement surface. The laterally extending key member is adapted to reposition an interference member from an interference position, whereby the body portion can be fully inserted into the filter head assembly to a non-interference position, whereby the body portion can be fully inserted into the filter head assembly.

    Abstract translation: 水过滤器包括具有主体部分的过滤器单元，该主体部分适于旋转地容纳在过滤器头组件中。 接合突起从主体部分延伸并且适于在过滤器头组件中的互补接收器中接收。 电子设备设置在具有存储器存储单元的过滤器单元上。 横向延伸的键构件设置在第一接合表面和第二接合表面之间的主体部分上。 横向延伸的键构件适于将干涉构件从干涉位置重新定位，由此主体部分可以完全插入到过滤头组件中到非干涉位置，由此主体部分可以完全插入过滤头组件 。

    Methods, apparatus and articles of manufacture to regulate relay coil switching
    6.
    发明授权
    Methods, apparatus and articles of manufacture to regulate relay coil switching 有权

    公开(公告)号：US09679728B2

    公开(公告)日：2017-06-13

    申请号：US14452780

    申请日：2014-08-06

    Applicant: Whirlpool Corporation

    Inventor： Erik Peter Oosterwal ,  Peter J. Richmond

    IPC: H01H47/00 ,  H01H50/86 ,  H01H9/56 ,  H01H47/22 ,  H01H7/16

    CPC classification number: H01H50/86 ,  H01H7/16 ,  H01H9/56 ,  H01H47/22 ,  H01H47/223 ,  H01H2231/012

    Abstract: Methods, apparatus, and articles of manufacture to regulate relay coil switching are disclosed. A disclosed example method of regulating switching times of a relay having a pair of contacts to selectively and electrically couple an analog alternating current (AC) power source and a load includes forming a digital pulse train representative of an AC signal at the load, determining a first value corresponding to a representative pulse width of the digital pulse train, providing a first relay switching signal to the relay at a first time relative to a zero crossing of the AC signal, selecting a second time for providing a second relay switching signal to the relay based the first value and a second value representative of the width of a first pulse of the digital pulse train associated with the first relay switching signal at the first time, and providing the second relay switching signal to the relay at the second time.

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