Blowing tube, blowing device, and image forming apparatus
US9869968B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2016 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Aug 12, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1645
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is provided blowing tube. A plurality of flow control members are provided in portions of a passage space of a passage portion which are positioned at different positions in an airflow direction, and control a flow of air. One of the flow control members is provided as a downstream-most flow control member such that the outlet port is blocked by a multi-hole member having a plurality of air holes. Each of the air holes of the downstream-most flow control member is configured as a through hole such that the opening area of the through hole decreases continuously or in a stepwisely toward the downstream side in an air passing direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.