Resistance welding fastener, apparatus and methods
US12347988B2 · kind B2 · utility
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3References
20Claims
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Key dates
| Filing date | May 8, 2024 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | May 8, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/472
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for fastening dissimilar materials like steel, plastic and aluminum. A resistance welding fastener having multiple layers may be used with or without a sealant. The fastener may be used to form an aluminum covered steel laminate via a hemming pattern of attachment. The fastener may have a solid shaft or have an extended reach and have features for interacting with the welding electrode. A variety of electrode tips may be employed to cooperate with the fastener.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.