Method and system for batch forming spring elements in three dimensions
US7597561B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2005 |
| Grant date | Oct 6, 2009 |
| Priority date | — |
| Expiry date | Mar 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/326
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for batch forming a sheet of spring elements in three dimensions includes a top spacer layer. A plurality of ball bearings is arranged in a predetermined pattern on the top spacer layer. A spring element sheet containing the spring elements defined in two dimensions is positioned on the top spacer layer and the plurality of ball bearings. A top spacer layer is positioned on the spring element sheet. The top spacer layer and the bottom support layer are adapted to have a force applied thereto to push the plurality of ball bearings against the spring element sheet, such that the spring elements extend above the plane of the spring element sheet, thereby forming the spring elements in three dimensions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.