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Air treatment system

  • US 9,821,260 B2
  • Filed: 05/05/2015
  • Issued: 11/21/2017
  • Est. Priority Date: 02/14/2014
  • Status: Active Grant
First Claim
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1. An air treatment system comprising:

  • a system housing including a filter housing and defining an outlet;

    a plurality of filters arranged in said filter housing;

    a blower for moving air through said plurality of filters;

    a dust sensor for sensing a dust level;

    a proximity sensor configured to sense presence of an operator;

    a control system having an electronics module with a display having a plurality of display elements capable of being illuminated in a plurality of different configurations, wherein said plurality of display elements includes dust level display elements, blower speed input display elements, power display element, automatic mode input display element, turbo mode input display element, night mode input display element, said electronics module controlling operation of said blower, said electronics module being covered by a translucent portion having a translucency selected to provide a dead front display;

    a front cover disposed over said filters;

    wherein said control system is configured to selectively illuminate combinations of said plurality of display elements in a variety of configurations to provide a plurality of display states that present available control options based on one of a plurality of air treatment system modes of operation, wherein said plurality of air treatment system modes of operation include automatic mode, manual mode, turbo mode, and night mode, wherein a display element associated with a current mode of operation of said air treatment system is illuminated in a first color to indicate said current mode of operation of said air treatment system, wherein other display elements associated with modes other than said current mode of operation of said air treatment system are illuminated in a second, different, color;

    wherein during automatic mode, said control system evaluates said dust level sensed by said dust sensor, adjusts blower speed based on output of said dust sensor, and illuminates said dust level display elements based on output from said dust sensor, said blower speed input display elements based on said blower speed, and illuminates said turbo mode input display element, said night mode input display element, and said power display element to indicate those modes are available, and illuminates said automatic mode input display element to indicate current mode of said air treatment system;

    wherein during manual mode, all of said plurality of display elements are illuminated;

    wherein during turbo mode, said control system operates said blower at a predetermined speed setting for a preset period of time before returning automatically to a previous mode of operation and illuminates said blower speed input display elements, said night mode input display element, said automatic mode display element, and said power display element to indicate those modes are available, and illuminates said turbo mode input display element to indicate current mode of said air treatment system;

    wherein during night mode, said control system reduces light emission from said plurality of display elements except said night mode input display element;

    wherein said control system is configured to determine no operator is proximate the air treatment system based on output of said proximity sensor and in response adjust said plurality of display elements such that none of said plurality of display elements are illuminated except said dust level display elements, a display element indicating current mode of said air treatment system, and said power display element.

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