Extendable sleeve for a poured concrete deck

Patent metadata

Field	Value
Publication number	US-10344472-B2
Application number	US-201615332916-A
Country	US
Kind code	B2
Filing date	Oct 24, 2016
Priority date	Mar 15, 2013
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

A tubular passage for poured concrete decks has an intumescent tube held in a two-part, clamshell base by a bottom clip. A first tube engages the base's top to clamp a funnel shaped, diaphragm seal to the base. The first tube has spaced, radially extending, parallel ridges at predetermined distances from the base. Longitudinal channels separate the ridges. An extension tube has inward extending lugs passing along the channels to engage various ridges when rotated to fix the passage length. The extension engages the base bottom for corrugated deck supports. A cap with repositionable, locating filaments closes either tube.

First claim

What is claimed is:

1. An assembly having a tubular passage through a poured concrete deck that has opposing upper and lower surfaces with a pipe passing through the tubular passage, comprising:
a base having a cylindrical sidewall with an upper end and an opposing bottom end and extending along a longitudinal axis, the lower end of the base having an outwardly extending base flange at the lower surface of the concrete;
intumescent material inside and adjacent to the sidewall and encircling the longitudinal axis and the pipe;
a flexible diaphragm seal having an outer periphery engaging the base and having an inner periphery defining an opening encircling and forming a friction seal with the pipe, the diaphragm having a funnel portion with a sidewall that is curved toward the longitudinal axis when viewed in a radial plane containing the longitudinal axis, the curved sidewall extending completely around the longitudinal axis and toward the upper surface of the deck before any pipe is inserted through the opening;
a first tube having opposing upper and lower ends with the lower end engaging the base and the tube extending along the longitudinal axis toward the upper surface of the concrete; and
wherein the base and first tube are entrained in the concrete deck and form at least a portion of the tubular passage, with the diaphragm seal being located between the opposing upper and lower surfaces of the deck.

2. The assembly of claim 1 , further comprising a corrugated support on the bottom surface of the deck, with the base connected to the corrugated surface.

3. The assembly of claim 1 , wherein the upper end of the first tube extends to the upper surface of the deck.

4. The assembly of claim 1 , further including a first extension tube having opposing top and bottom ends, the bottom end of the first extension tube being connected to the first tube with the top end of the first extension tube extending toward the upper surface of the deck along the longitudinal axis.

5. The assembly of claim 4 , wherein the lower end of the first tube has internal threads engaging external threads on the base.

6. The assembly of claim 4 , wherein the top end of the first extension tube extends to the upper surface of the deck.

7. The assembly of claim 4 , wherein the bottom end of the first extension tube has external threads.

8. The assembly of claim 1 , wherein the base is formed of two segments separated along a plane through the longitudinal axis but fastened together to form the base.

9. The assembly of claim 1 , wherein the first tube clamps the flexible diaphragm against the housing.

10. The assembly of claim 1 , wherein the diaphragm seal comprises an annular portion in a first plane orthogonal to the longitudinal axis and the curved sidewall curves from that first plane through an arc to extend generally parallel to the longitudinal axis.

11. The assembly of claim 10 , wherein the diaphragm seal has a lip around an outer periphery of the diaphragm seal, which lip extends parallel to the longitudinal axis.

12. The assembly of claim 1 , wherein an outer periphery of the diaphragm is clamped between a first flange on the base that extends inward toward the longitudinal axis and has a first inner periphery and a second flange on the sleeve that extends inward toward the longitudinal axis and has a second inner periphery, and wherein each of the first and second flanges inner peripheries end at a radial distance before the longitudinal axis and before the beginning of the curved portion of the diaphragm begins so there is a planar annular portion of the diaphragm seal that is orthogonal to the longitudinal axis and that is unsupported between the first and second inner peripheries and the beginning of the conical funnel portion before any pipe is inserted in through the opening in the diaphragm.

13. An assembly having a tubular passage through a poured concrete deck that has opposing upper and lower surfaces with a pipe passing through the tubular passage, comprising:
a base having a cylindrical sidewall with an upper end and an opposing bottom end and extending along a longitudinal axis, the lower end of the base having an outwardly extending base flange at the lower surface of the concrete;
intumescent material inside and adjacent to the sidewall and encircling the longitudinal axis and the pipe;
a flexible diaphragm seal having an outer periphery engaging the base and having an inner periphery defining an opening encircling and forming a friction seal with the pipe, the diaphragm having a funnel portion with a curved sidewall extending toward the upper surface of the deck before any pipe is inserted through the opening;
a first tube having opposing upper and lower ends with the lower end engaging the base and the tube extending along the longitudinal axis toward the upper surface of the concrete; and
wherein the base and first tube are entrained in the concrete deck and form at least a portion of the tubular passage;
wherein the first tube further includes:
a first set of parallel ridges extending outward from the first tube with each of the ridges in a plane orthogonal to the longitudinal axis, the first set of ridges each extending less than half way around the first tube;
a second set of parallel ridges extending outward from the first tube with each of the ridges in a plane orthogonal to the longitudinal axis, the second set of ridges each extending less than half way around the first tube and located on an opposing side of the first tube than the first set of ridges, the first and second ridges having ends spaced apart to define first and second longitudinal channels on opposing sides of the first tube;
wherein a plurality of the ends of two adjacent ridges in the first set of ridges are joined by first axially extending end segments with the first axially extending end segments joining only two adjacent ridges, and wherein a plurality of second axially extending end segments join adjacent ridges which ridges are each joined to a different one of the first axially extending end segments, with the first axially extending end segments located a first circumferential distance from a center of the first channel and the second axially extending end segments located a second circumferential distance from the center of the first channel with the second circumferential distance being greater than the first circumferential distance to form a first circumferential recess at each second axially extending end segment;
wherein a plurality of the ends of two adjacent ridges in the second of ridges are joined by third axially extending end segments with the third axially extending end segments joining only two adjacent ridges, and wherein a plurality of fourth axially extending end segments join adjacent ridges which ridges are each joined to a different one of the third axially extending end segments, with the third axially extending end segments located a third circumferential distance from the center of the first channel and the fourth axially extending end segments located a fourth circumferential distance from the center of the first channel, with the fourth circumferential distance being greater than the third circumferential distance to form a second circumferential recess at each fourth axially extending end segment.

14. The assembly of claim 13 , further including a first extension tube having opposing top and bottom ends, the bottom end of the first extension tube having first and second locking lugs each extending inward from a different opposing side of the first extension tube, the first and second locking lugs sized and located to slide along th

Assignees

• Securus Inc
• Reliance Worldwide Corp

Inventors

• Mcconnell Timothy M
• O'Neil Virgil
• Brown Larry D
• Hart Dennis L
• Price Darrell W

Classifications

• F16L1/06

  Accessories therefor, e.g. anchors · CPC title

• E04G15/061

  Non-reusable forms (positioning means without forming function E04G21/185; electric distribution boxes H02G3/08) · CPC title

• E04B1/948

  Fire-proof sealings or joints (for doors or windows E06B5/164) · CPC title

• H02G3/0412

  Heat or fire protective means (for fire in electric circuits A62C3/16) · CPC title

• F16L5/02 Primary

  Sealing · CPC title