Poke-through device

Patent metadata

Field	Value
Publication number	US-2019006830-A1
Application number	US-201816015695-A
Country	US
Kind code	A1
Filing date	Jun 22, 2018
Priority date	Jun 29, 2017
Publication date	Jan 3, 2019
Grant date	—

Abstract

A poke-through device for installation in a hole in a floor structure, the poke-through device including a body defining an interior. The body including a length bounded by an upper end and a lower end, the body including a central axis extending along its length. A mounting frame including a pair of opposed end lobes separated by at least one divider. One of the pair of lobes has a first electrical device mounting surface and the other of the pair of lobes including a second electrical device mounting surface. The first and second electrical mounting surfaces are angled toward the central axis. The first and second electrical device mounting surfaces each including an opening adapted to receive therein an electrical device. A first intumescent member is disposed at the body upper end, and an electrical box is secured to the body lower end. A fire resistant gasket is disposed between the electrical box and the body lower end. The gasket includes openings therein to permit passage of wiring between the electrical box and the body.

First claim

What is claimed is:

1 . A poke-through device for installation in a hole in a floor structure, the poke through device comprising:
a body defining an interior, the body including a length bounded by an upper end and a lower end, the body including a central axis extending along its length; a mounting frame including a pair of opposed end lobes separated by at least one divider, one of the pair of lobes including a first electrical device mounting surface and the other of the pair of lobes including a second electrical device mounting surface, the first and second electrical mounting surfaces being angled toward the central axis, the first and second electrical device mounting surfaces each including an opening adapted to receive therein an electrical device; a first intumescent member disposed at the body upper end; and an electrical box secured to the body lower end.

2 . The poke-through device as defined in claim 1 , wherein the mounting frame forms a plane extending perpendicular to the central axis and the first and second electrical device mounting surfaces are angled with respect to the plane

3 . The poke-through device as defined in claim 2 , wherein the first and second mounting surfaces are angled in the range of 5 to 40 degrees with respect to the plane.

4 . The poke-through device as defined in claim 2 , including a fire resistant gasket disposed between the electrical box and the body lower end, the gasket including openings therein to permit passage of wiring between the electrical box and the body.

5 . The poke-through device as defined in claim 1 , wherein the first intumescent member is disposed on the body, and wherein a portion of the first intumescent member extends above the body and a portion extends into the body.

6 . The poke-through device as defined in claim 1 , a second intumescent member is disposed on the body between the mounting frame and the body lower end, the second intumescent member including openings therein to permit wiring to pass therethrough.

7 . The poke-through device as defined in claim 1 , including a cover assembly secure above the body upper end.

8 . The poke-through device as defined in claim 7 , wherein the cover assembly includes a lid movable between an open and closed position, the cover assembly including an opening adapted to receive an electrical device wherein the electrical device is exposed when the lid is in the closed position.

9 . The poke-through device as defined in claim 2 , wherein the mounting frame has a pair of lobes connected to each other by at least one connecting member, and the first and second electrical device mounting surfaces are each disposed on one of the pair of lobes.

10 . The poke-through device as defined in claim 9 , including a plurality of metallic mounting plates secured to the mounting frame, the plurality of mounting plates adapted to secure an electrical device within the body.

11 . The poke-through device as defined in claim 1 , wherein the electrical box is formed of a metallic material, and includes a metallic top secured to the body lower end, the top engaging and supporting the gasket.

12 . A poke-through device comprising:
a body defining a body interior and including a length bounded by an upper end and a lower end, the body including a central axis extending along its length; a mounting frame is disposed in the body and adapted to secure an electrical device within the body; a first intumescent member disposed at the body upper end; a second intumescent member disposed in the body between the mounting frame and the body lower end; a cover secured to the upper end, the cover including a frame defining an opening and a lid movable between an open and closed position wherein access to the body interior is provided when the lid is in the open position, the cover including an electrical device access port adapted to receive an electrical device wherein the electrical device access port is exposed when the lid is in the closed position; and an electrical box secured to the body lower end.

13 . The poke-through device as defined in claim 12 , including a fire resistant gasket disposed between the electrical box and the body lower end, the gasket including openings therein to permit passage of wiring between the electrical box and the body.

14 . The poke-through device as defined in claim 12 , wherein the gasket slit is adapted to closely conform to wiring passing there through to prevent expanding intumescent material from entering the electrical box when subjected to a fire condition.

15 . The poke-through device as defined in claim 12 , wherein the first intumescent member is a ring-shaped member.

16 . The poke-through device as defined in claim 15 , wherein the first intumescent member is sized such that upon a fire condition, the first intumescent member expands to fill a volume of the body between the mounting frame and the body upper end.

17 . The poke-through device as defined in claim 16 , wherein the second intumescent member is sized such that upon a fire condition, the first intumescent member expands to fill a volume of the body between the mounting frame and the electrical box.

18 . The poke-through device as defined in claim 12 , wherein the mounting frame is formed of a thermally non-conductive polymer material.

19 . The poke-through device as defined in claim 18 , wherein at least one metallic plate is secured to the mounting frame, the metallic plate including mounting points thereon adapted to secure an electrical device thereto.

20 . The poke-through device as defined in claim 12 , wherein the frame includes a pair of opposed end lobes separated by at least one divider, one of the pair of lobes including a first electrical device mounting surface and the other of the pair of lobes including a second electrical device mounting surface, the first and second electrical mounting surfaces being angled toward the central axis, the first and second electrical device mounting surfaces each including an opening for receiving an electrical device.

21 . The poke-through device as defined in claim 20 , wherein the mounting frame forms a plane extending perpendicular to the central axis and the first and second electrical device mounting surfaces are angled with respect to the plane.

22 . The poke-through device as defined in claim 21 , wherein the first and second mounting surfaces are angled in the range of 5 to 40 degrees with respect to the plane.

23 . A poke-through device comprising:
a body defining an interior and including an upper end and a lower end and including a central axis extending between the upper and lower end; a mounting frame including a pair of opposed mounting surfaces adapted to support a first electrical device, the mounting surfaces being spaced apart by a divider, the divider forming an opening to receive a second electrical device, a plurality of metallic mounting plates secured to the mounting frame, the plurality of mounting plates adapted to secure the second electrical device to the mounting frame between the pair of mounting surfaces, the pair of mounting surfaces is angled toward the central axis; a first intumescent member disposed at the body upper end; a second intumescent member disposed in the body interior between the mounting frame and the body lower end; a metallic electrical box secured to the body lower end; and a fire resistant gasket disposed between the electrical b

Assignees

• Thomas & Betts Int Llc

Inventors

• Richards Gregory
• Drane Mark R
• Jolly Robert Kevin
• Martin Michael D

Classifications

• H02G3/088 Primary

  Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets · CPC title

• H02G3/22

  Installations of cables or lines through walls, floors or ceilings, e.g. into buildings · CPC title

• H02G3/081

  Bases, casings or covers · CPC title

• H02G3/185

  Floor outlets and access cups · CPC title

• E04B1/947

  by closing openings in walls or the like in the case of fire (fire-proof doors E06B5/16) · CPC title