IP Library › Granted Patent US 8,454,290
Granted Patent B2
US 8,454,290 · App. 13/254,778 · Granted Jun 4, 2013

Bushing assembly

Inventors: Robert R. Schaser (Hampshire, IL); Jason D. Holt (St. Charles, IL); Albert W. Van Boven (Barrington, IL); Jeremy R. D. Tuttle (Dearborn, MI); Glenn G. Heavens (Chesire, CT)
Assignee: Illinois Tool Works Inc.
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Quick Facts
Patent No.
US 8,454,290
App. No.
13/254,778
Granted
Jun 4, 2013
Kind
B2
Abstract

A fastener assembly includes a bushing having a flange configured to be urged toward a work-piece, and an isolation spring configured to be positioned between the flange and the work-piece. The isolation spring includes a metal core integrally formed with a rubber coating.

Claims (20)

1. A fastener assembly comprising:

a bushing assembly comprising a flange configured to be urged toward a work-piece, wherein said bushing comprises a central column integrally connected to said flange, wherein said central column defines an open-ended passage; and

an isolation spring configured to be positioned between said flange and the work-piece, wherein said isolation spring comprises a metal core integrally formed with a rubber coating, wherein said isolation spring is shaped as a wave spring.

2. The fastener assembly of claim 1 , wherein said rubber coating is bonded to said metal core.

3. The fastener assembly of claim 1 , wherein said rubber coating encapsulates said metal core.

4. The fastener assembly of claim 1 , further comprising a fastener positioned within said open-ended passage.

5. The fastener assembly of claim 4 , wherein said fastener comprises a bolt having a head integrally connected to a threaded shaft.

6. The fastener assembly of claim 1 , further comprising a second isolation spring, wherein said bushing comprises a second flange, and wherein said second isolation spring is positioned on said second flange.

7. The fastener assembly of claim 1 , wherein only said isolation spring is configured to contact the work-piece.

8. The fastener assembly of claim 1 , wherein no portion of said metal core is flat in an uncompressed state.

9. A fastener assembly comprising:

a bushing comprising first and second flanges integrally connected through a central column, wherein said central column defines an open-ended passage;

first and second isolation springs abutting said first and second flanges, respectively, wherein each of said first and second isolation springs comprises a metal wave-shaped core integrally formed with a rubber coating;

a work-piece compressively sandwiched between said first and second isolation springs.

10. The fastener assembly of claim 9 , wherein said rubber coating is bonded to said metal core.

11. The fastener assembly of claim 9 , wherein said rubber coating encapsulates said metal core.

12. The fastener assembly of claim 9 , further comprising a fastener positioned within said open-ended passage.

13. The fastener assembly of claim 12 , wherein said fastener comprises a bolt having a head integrally connected to a threaded shaft.

14. The fastener assembly of claim 9 , wherein only said first and second isolation springs contact said work-piece.

15. The fastener assembly of claim 9 , wherein no potion of said metal wave-shaped core is flat in an uncompressed state.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 2, 2011
From: SCHASER, ROBERT R.; HEAVENS, GLENN G.; VAN BOVEN, ALBERT W.; TUTTLE, JEREMY R.D.; HOLT, JASON D.
To: ILLINOIS TOOL WORKS INC.
Reel/Frame 026853/0317 →
Continuity (2)
Provisional Application 61157458 · Mar 4, 2009
Related Publication 20110311333A1 · Dec 22, 2011