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Barrier systems and associated methods, including vapor and/or fire barrier systems

  • US 8,113,266 B2
  • Filed: 01/14/2009
  • Issued: 02/14/2012
  • Est. Priority Date: 07/26/2007
  • Status: Active Grant
First Claim
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1. A barrier system, comprising:

  • a barrier having a first end, a second end opposite the first end, and first and second edge portions opposite each other and extending between the first and second ends, the barrier being movable between a deployed position and a retracted position;

    a spool coupled to the first end of the barrier, the barrier being positioned to be wound onto and off of the spool as the barrier moves between the deployed and the retracted position;

    a housing positioned to contain the spool and at least a portion of the barrier, the housing having an opening through which the barrier passes as the barrier moves between the deployed and the retracted position;

    a drive motor connected to a drive shaft and configured to drive the barrier toward and away from the deployed position;

    a first drive member coupled to the drive shaft and to the second end of the barrier, the first drive member being adjacent to the first edge portion of the barrier when the barrier is in the deployed position;

    a second drive member coupled to the drive shaft and to the second end of the barrier, the second drive member being adjacent to the second edge portion of the barrier when the barrier is in the deployed position;

    a controller coupled to the drive motor and configured to activate the drive motor to drive the barrier between the deployed and retracted positions;

    a first sensor adjacent to the drive member and coupled to the controller, the first sensor senses the position of the first drive member and communicating with the controller about a position of the first drive member, wherein the position of the first drive member is used to determine a position of the second end of the barrier relative to the deployed and retracted positions; and

    a second sensor adjacent to the drive member and coupled to the controller, the second sensor sensing the position of the second drive member and communicating with the controller about a position of the second drive member, wherein the position of the second drive member is used to determine the position of the second end of the barrier relative to the deployed and retracted positions.

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