IP Library › Granted Patent US 8,029,221
Granted Patent B2
US 8,029,221 · App. 12/350,352 · Granted Oct 4, 2011

Cage nut assembly

Assignee: Illinois Tool Works, Inc.
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Quick Facts
Patent No.
US 8,029,221
App. No.
12/350,352
Granted
Oct 4, 2011
Kind
B2
Abstract

A cage nut assembly includes a cage, a nut and a heat sensitive adhesive. The cage includes a plurality of walls defining an internal chamber and an open end. An opening is formed through one of the walls. The nut is secured to the cage within the internal chamber. The nut includes a threaded channel exposed through the opening. The heat sensitive adhesive adhesively secures the nut to the cage within the internal chamber. The nut breaks away from the cage within the internal chamber when heat is applied to the heat sensitive adhesive.

Claims (30)

1. A cage nut assembly comprising:

a cage comprising a plurality of walls defining an internal chamber and an open end, wherein an opening is formed through one of said plurality of walls;

a nut secured to said cage within said internal chamber, said nut comprising a threaded channel exposed through said opening; and

a heat sensitive adhesive adhesively securing said nut to said cage within said internal chamber, the heat sensitive adhesive is located on a surface between the cage and the nut wherein said nut breaks away from said cage within said internal chamber when heat is applied to said heat sensitive adhesive.

2. The assembly of claim 1 , wherein said cage comprises a tab secured to at least one of said plurality of said walls, wherein said tab extends over said open end.

3. The assembly of claim 1 , wherein said cage comprises a plurality of weld nibs extending from at least one of said plurality of said walls.

4. The assembly of claim 1 , wherein said cage is devoid of any protrusions within said internal chamber that are configured to secure said nut within said internal chamber.

5. The assembly of claim 1 , wherein said heat sensitive adhesive comprises glue.

6. The assembly of claim 1 , wherein said heat sensitive adhesive is a layer coating a surface of one or both of said nut and/or said cage.

7. The assembly of claim 1 , wherein said heat sensitive adhesive comprises a plurality of beads of glue.

8. A method of securing a nut to a coated structure, the method comprising:

applying a heat sensitive adhesive to a surface of one or both of a nut and a cage;

positioning the nut within an internal chamber of the cage;

aligning a threaded channel of the nut with an opening formed in a wall of the cage;

sandwiching the heat sensitive adhesive between the nut and the cage, wherein said sandwiching securely bonds the nut to the cage;

securing the cage to a structure;

applying a coating to the structure;

heating the heat sensitive adhesive in order to break the bond between the nut and the cage; and

dropping the nut to a free floating position on the structure through said heating.

9. The method of claim 8 , comprising prying a tab extending from the cage back in order to gain access to the nut within the internal chamber.

10. The method of claim 8 , wherein the heat sensitive adhesive comprises glue.

11. The method of claim 8 , wherein the heat sensitive adhesive is a layer coating a surface of one or both of the nut and/or the cage.

12. The method of claim 8 , wherein the heat sensitive adhesive comprises a plurality of beads of glue.

13. A cage nut assembly comprising:

a cage comprising: (i) a plurality of walls defining an internal chamber and an open end, (ii) a tab secured to at least one of said plurality of said walls, and (iii) a plurality of weld nibs extending from at least one of said plurality of said walls, wherein said tab extends over said open end, wherein an opening is formed through one of said plurality of walls;

a nut secured to said cage within said internal chamber, said nut comprising a threaded channel exposed through said opening; and

a heat sensitive adhesive adhesively securing said nut to said cage within said internal chamber, the heat sensitive adhesive is located on a surface between the cage and the nut wherein said nut breaks away from said cage within said internal chamber when heat is applied to said heat sensitive adhesive, wherein said cage is devoid of any protrusions within said internal chamber that are configured to secure said nut within said internal chamber.

14. The assembly of claim 13 , wherein said heat sensitive adhesive comprises glue.

15. The assembly of claim 13 , wherein said heat sensitive adhesive is a layer coating a surface of one or both of said nut and/or said cage.

16. The assembly of claim 13 , wherein said heat sensitive adhesive comprises a plurality of beads of glue.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 8, 2009
From: CURLEY, WILLIAM J., JR; PASCARIELLO, ANTHONY
To: ILLINOIS TOOL WORKS INC
Reel/Frame 022075/0344 →
Continuity (2)
Provisional Application 61041025 · Mar 31, 2008
Related Publication 20090245967A1 · Oct 1, 2009