IP Library Granted Patent US 8,097,310
Granted Patent B2
US 8,097,310 · App. 10/360,087 · Granted Jan 17, 2012

Firestop article with attachment surface

Assignee: 3M Innovative Properties Company
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Quick Facts
Patent No.
US 8,097,310
App. No.
10/360,087
Granted
Jan 17, 2012
Kind
B2
Abstract

A firestop article for fire stopping an opening in a floor or wall includes a firestop material, an enclosure surrounding the firestop material, and an attachment surface provided on the outer surface of the enclosure that allows the article to be repeatably connected to and removed from a mating surface.

Claims (14)

1. A firestop article for insertion into an opening in a partition for fire stopping the opening, comprising:

(a) a firestop material defining a periphery;

(b) an enclosure disposed around said periphery of said firestop material; and

(c) an attachment surface comprising attachment material selected from the group consisting of a refastenable mechanical fastener, a stretch release adhesive, a contact responsive fastener, and a repositionable adhesive coupled to an exterior of said enclosure,

wherein said firestop article is configured to be inserted into the opening such that upon final assembly within the opening, said attachment surface is arranged to allow said firestop article to be repeatably attached to, removed from, and reattached to an attachment surface of at least one adjacent firestop article within the opening.

2. A firestop article as defined in claim 1 , wherein said enclosure encompasses an entirety of said firestop material.

3. A firestop article as defined in claim 1 , wherein said enclosure permanently separates said attachment surface from said firestop material.

4. A firestop article as defined in claim 3 , wherein said attachment surface is a band comprising at least one of hook and loop fasteners, said band encircling said firestop material.

5. A firestop article as defined in claim 1 , wherein said enclosure is a sealed bag.

6. A firestop article as defined in claim 1 , wherein said firestop material is sealed within said enclosure.

7. A firestop article for insertion into an opening in a partition for fire stopping the opening, comprising:

(a) firestop material having an outer surface; and

(b) an attachment surface comprising attachment material selected from the group consisting of a refastenable mechanical fastener, a stretch release adhesive, a contact responsive fastener, and a repositionable adhesive, said attachment material being arranged on said firestop material outer surface;

wherein said firestop article is configured to be inserted into the opening such that upon final assembly within the opening, said attachment surface is exposed relative to said firestop material to allow said firestop article to be repeatably attached to, removed from, and reattached to a separate attachment surface apart from said firestop article, and wherein said firestop material comprises non-woven fibrous interior insulating material and an intumescent material arranged around at least a portion of said insulating material.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 7, 2003
From: MILLER, STEPHEN A.; STOBBIE, CHARLES W. IV; WAXER, LAUREN N.
To: 3M INNOVATIVE PROPERTIES COMPANY
Reel/Frame 013762/0720 →
Continuity (1)
Related Publication 20040157012A1 · Aug 12, 2004