Claims
- 1. A weldable ring stud fastener comprising:
a fastener head having a first head thickness; an annular weldment area having a second head thickness, said second head thickness being less than the first head thickness, said annular weldment area having a first exterior radius and said head has an exterior wall having a second exterior radius equal to the first exterior radius; a solid cylindrical body having an exterior surface, a portion of the exterior surface being threaded.
- 2. The weldable fastener according to claim 1 wherein said shank comprises a weakened section position adjacent to said head.
- 3. A weldable ring stud fastener comprising:
a fastener head having a first head thickness greater than 1.5 mm; an annular weldment area having a second head thickness, the second head thickness is about 20% to about 35% of the first thickness, said annular weldment area having a first exterior radius and said head has an exterior wall having a second exterior radius equal to the first exterior radius; a solid cylindrical body having an exterior surface having an exterior radius less than the first exterior radius, a portion of the exterior surface being threaded.
- 4. An automotive, stud to structure construction comprising:
a metal laminate comprising a polymer layer; a fastener head having a first head thickness and a web portion; an annular weldment area having a second head thickness, said second head thickness being less than the first head thickness, said annular weldment area having a first exterior radius and said head has an exterior wall having a second exterior radius equal to the first exterior radius; a solid cylindrical shank having an exterior surface, a portion of the exterior surface being threaded; an annular weldment disposed between and coupling the weldable fastener to the metal laminate.
- 5. The stud to structure construction according to claim 4 configured such that the shank has a first failure load, and the web has a second failure load greater than the first failure load and wherein the annular weldment has a third failure load greater than the first failure load.
- 6. The stud to structure construction according to claim 4 wherein the laminate comprises first and second metallic layers, said polymer layer being disposed between the first and second layers.
- 7. The stud to structure construction according to claim 4 wherein the weldment is partially disposed between the first and second metallic layers.
- 8. A weld stud comprising:
a longitudinally elongated solid threaded shank; a laterally enlarged head extending from an end of the shank, said head having a first thickness is greater than 1.5 mm; and a substantially annular section longitudinally extending from the head opposite the shank, the annular section having a second thickness being less than the first thickness; and wherein a welding edge of the annular section is substantially flat along a lateral plane substantially parallel to a lateral plane of the head, prior to welding and wherein said head has an exterior wall having a first exterior radius and said annular weldment area has a second exterior radius equal to the first exterior radius.
- 9. The weldable fastener according to claim 8 wherein said shank comprises a weakened section position adjacent to said head.
- 10. The weldable fastener according to claim 8 wherein the second thickness is about 20% to about 35% of the first thickness.
Parent Case Info
[0001] This application is a continuation application of PCT International Application PCT/US03/20836 filed on Jul. 3, 2003 which claims the benefit of U.S. Provisional Application No. 60/416,614 filed on Oct. 7, 2002 and U.S. Provisional Application No. 60/420,951, filed on Oct. 24, 2002. The disclosures of the above applications are incorporated herein by reference.
Provisional Applications (2)
|
Number |
Date |
Country |
|
60416614 |
Oct 2002 |
US |
|
60420951 |
Oct 2002 |
US |
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/US03/20836 |
Jul 2003 |
US |
Child |
10714500 |
Nov 2003 |
US |