Sieve, sifting device, solder balls, and method of sifting spherical particles
US8267255B2 · kind B2 · utility
3Cited by
6References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2010 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Sep 29, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B2230/01
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention aims to enhance efficiency of a sieve and to greatly improve productivity of a sifting operation. There is provided a sieve comprising a metal plate including long holes, wherein the long holes are plurally provided such that lines extending in length directions thereof cross one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.