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Electrical junction box with fastener knockout feature and method

  • US 7,812,255 B2
  • Filed: 06/10/2008
  • Issued: 10/12/2010
  • Est. Priority Date: 06/10/2008
  • Status: Active Grant
First Claim
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1. A junction box assembly for providing an air impermeable barrier between a box support structure and a junction enclosure, the junction box assembly comprising, in combination:

  • at least one fastener and an electrical junction box, said fastener having a fastener head, the junction box comprising a base plate and a peripheral wall, the peripheral wall extending from the base plate such that the base plate and peripheral wall define the junction enclosure, the base plate comprising a series of fastener-receiving apertures and a series of fastener-based aperture-covering slugs, the fastener-based aperture-covering slugs being attached to the base plate adjacent the fastener-receiving apertures thereby covering the fastener-receiving apertures and providing said air impermeable barrier, the fastener-based aperture-covering slugs being selectively detachable from the base plate via an implement for selectively exposing the series of fastener-receiving apertures, the selectively exposed fastener-receiving apertures for receiving said fastener, said fastener head for re-sealing the selectively exposed fastener-receiving apertures when fastening the junction box to the box support structure thereby providing said air impermeable barrier between the box support structure and the junction enclosure.

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