Perforated vacuum hold down surface
US6889967B2 · kind B2 · utility
4Cited by
5References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 27, 2002 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Sep 27, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1707
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A vacuum hold down table includes a surface sheet having perforations arranged so as to reduce surface cracking when the surface sheet is subject to forces during use of the table; the perforations may also be arranged to that a greater hold down force is produced in that portion of the table where the workpiece will be located, this may be accompanied by varying the hole diameter and/or hole spacing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.