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Extendable electrical box

  • US 9,847,631 B2
  • Filed: 11/06/2014
  • Issued: 12/19/2017
  • Est. Priority Date: 09/12/2008
  • Status: Active Grant
First Claim
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1. An extendable electrical box comprising:

  • an electrical box comprising four walls including a first end wall, a first side wall, a second end wall and a second side wall, a first open end, a second open end opposite said first open end, an internal box space extending from said first open end to said second open end and having a first depth, a mounting structure integrally formed with at least one of said walls, the mounting structure configured to mount the electrical box to a vertical wall structure, a first guide projecting into said internal box space from a first corner between said first end wall and first side wall and extending from said first open end, and a second guide projecting into said internal box space from a second corner opposite said first corner between said second end wall and second side wall and extending from said first open end, said first guide having a first face extending from said first end wall, and a second face extending from said first side wall substantially perpendicular to said first face of said first guide; and

    an extendable first ring having a first open end and a second open end, said extendable first ring being slidably mounted in the internal box space of said electrical box, said extendable first ring having an outer surface with an inwardly angled first track at a first corner of said first ring extending between a first open end and a second open end receiving said first guide of the electrical box, an inwardly angled second track at a second corner of said first ring opposite said first corner and extending between a first open end and a second open end receiving said second guide, and a screw hole on two opposing walls of said extendable first ring for receiving a mounting screw and supporting an electrical device at said first open end of said first ring, said first track of said first ring having a first face extending substantially perpendicular from a first end wall of said first ring and a second face extending substantially perpendicular from a first side wall of said first ring defining a longitudinal recess receiving said first guide.

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