{
  "abstract": "A fire-rated poke-thru (FRPT) device for routing power and low voltage through an opening in a concrete floor assembly. The FRPT includes a support plate including an opening configured for mounting of a quad receptacle and cutouts for attachment of a plurality of low voltage keystones. The quad receptacle includes a central body with four corners. The support plate is configured for mounting of a low voltage keystone at each of the corners of the quad receptacle. A section of electrical metal tubing extends from the support plate. The FRPT includes a top flange, a sliding plate, a bottom seal off, and one or more intumescent discs. The FRPT may be inserted within the opening in the concrete floor and secured thereto. If exposed to the heat from a fire, the intumescent discs will expand around the FRPT and prevent spreading of the fire through the floor opening.",
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  "published_at": "2026-09-15T19:03:19.573165Z",
  "publisher": "Nebula Innovations Limited",
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  "source_date": "2026-04-14",
  "source_id": "US-12603486-B1",
  "source_name": "the United States Patent and Trademark Office",
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  "supersedes": null,
  "title": "Fire-rate poke-thru assembly for quad receptacle",
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}