Projection welded fastener with integral sealer
US7645105B2 · kind B2 · utility
24Cited by
21References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2006 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | Mar 5, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/1418
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A fastener is provided for projection resistance welding to a panel. The fastener includes a base having a fastening element, such as a threaded stud or a nut integral therewith. Multiple projections formed integral with the base extend therefrom to engage with the panel to be welded to the panel by electric resistance welding. A groove is provided in the base facing the panel and is filled with a heat activated expandable sealer material. Upon heating of the base during the electric resistance welding, or in an oven, the sealer expands to fill and seal any gap between the base and the panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.