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Multiple volatile material dispensing device and operating methodologies therefore

  • US 8,255,089 B2
  • Filed: 05/28/2010
  • Issued: 08/28/2012
  • Est. Priority Date: 05/28/2010
  • Status: Active Grant
First Claim
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1. A dispensing device, comprising:

  • a controller;

    first and second actuators coupled to the controller and adapted to actuate first and second containers, respectively, to dispense volatile material therefrom; and

    a sensor coupled to the controller for detecting an environmental condition,wherein the controller is configured to operate in a first period during which the first and second actuators are inactive, in a second period during which the first actuator is controlled to periodically actuate the first container at a first frequency to dispense volatile material therefrom, and in a third period during which the second actuator is controlled to periodically actuate the second container at a second frequency to dispense volatile material therefrom, andwherein, if the sensor has detected the environmental condition, the controller is configured to control the first and/or second actuators to periodically actuate the first and/or second containers, respectively, during a fourth period at a third frequency different than the first and second frequencies to dispense volatile material therefrom.

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