Polymer filled capped nut

• US 9,360,040 B2
• Filed: 02/13/2013
• Issued: 06/07/2016
• Est. Priority Date: 02/16/2012
• Status: Active Grant

• Current Assignee: MacLean-Fogg Company
• Original Assignee: MacLean-Fogg Company
• Inventors: Milligan, Sean K., Dean, Gregory A.
• Primary Examiner(s): Estremsky, Gary
• Application Number:
  US13/766,119
• Publication Number:
  US 20130216330A1
• Time in Patent Office: 1,210 Days
• Field of Search: 411429-431, 470/24
• US Class Current: 1/1
• CPC Class Codes: F16B 37/14 Cap nuts; Nut caps or bolt caps

Abstract

Capped nuts are provided with an polymer in the top portion of the capped nut. The polymer may be disposed between the inner surface of the cap and a nut body. The polymer may extend into a top opening in the nut body and contact an inner wall of the opening in the nut body.

Claims

1. A nut comprising:

a nut body comprising an opening and a plurality of wrenching surfaces, said opening extending longitudinally through said nut body and comprising an internal thread along at least a bottom portion of said opening, said wrenching surfaces being disposed around an exterior of said nut body;

a cap disposed around a portion of said nut body and secured thereto, said cap covering a top of said opening; and

a hardenable support material disposed within said opening and contacting substantially all of an inner surface of said cap disposed above said top of said opening and contacting an inner wall of a top portion of said opening;

wherein said hardenable support material is injected into said cap in a fluid state, said hardenable support material pooling and hardening along said inner surface of said cap, hardenable support material has a Shore D durometer of 80 or higher, said hardenable support material thereby supporting said cap to increase damage resistance of said cap.

2. The nut according to claim 1, wherein said hardenable support material is a polymer.

3. The nut according to claim 2, wherein said polymer is further disposed between a top surface of said nut body and said cap.

4. The nut according to claim 2, wherein said top portion of said opening contacting said polymer is unthreaded.

5. The nut according to claim 2, wherein said polymer is an epoxy.

6. The nut according to claim 2, wherein said nut is an automotive wheel nut, said nut body is metallic and said cap is metallic, said polymer is further disposed between a top surface of said nut body and said cap, and a thickness of said cap is about 0.012″

to about 0.18″

.

7. The nut according to claim 6, wherein said top portion of said opening contacting said polymer is unthreaded, said cap is secured to said nut body with a skirt of said cap wrapped around a flange of said nut body, and said polymer is an epoxy.

8. The nut according to claim 2, wherein said nut is an automotive wheel nut, said polymer is an epoxy, said polymer is further disposed between a top surface of said nut body and said cap, said top portion of said opening contacting said polymer is unthreaded, and said cap is secured to said nut body with a skirt of said cap wrapped around a flange of said nut body.

9. The nut according to claim 1, wherein said cap is secured to said nut body with a skirt of said cap wrapped around a flange of said nut body.

10. The nut according to claim 1, wherein said cap forms a dome covering said top of said opening, said inner surface of said cap disposed at least 0.180″

above a top surface of said nut body.

11. The nut according to claim 10, wherein said cap is metallic and a thickness of said cap is about 0.015″

to about 0.18″

.

12. The nut according to claim 1, wherein said cap is metallic and a thickness of said cap is about 0.012″

to about 0.015″

.

13. The nut according to claim 1, wherein said nut body is metallic and said cap is metallic.

14. The nut according to claim 1, wherein said nut is an automotive wheel nut.