Sieve
US10814353B2 · kind B2 · utility
0Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 20, 2018 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | May 7, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B1/469
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a sieve, unit blocks are arrayed along an up-down direction and a left-right direction. Each unit block includes elongated holes and short holes that are shorter than the elongated holes. In each of the unit blocks, the elongated holes include a first elongated hole extending along a first length direction and a second elongated hole extending along a second length direction intersecting an extension line running along the first length direction. Plural of the short holes are arranged in each of the unit blocks so as to be arranged between long edges of adjacent elongated holes of the elongated holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.