Rack and pinion sieve adjustment mechanism
US8622792B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 2012 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Nov 26, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B1/4636
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A sieve adjustment mechanism including a rack gear, a pivot handle, and an actuator, to mitigate lost motion/play in pivot link sieve assembly. The rack gear is movable between a first and a second position and connectable to a first sieve segment for moving the first sieve segment between a first sieve position and a second sieve position. The pivot handle includes a pinion gear at a first end of the pivot handle for operatively engaging the rack gear for moving the rack gear between the first and second positions and a second end opposite the first end. The pinion gear is rotatable about a first axis. The actuator is connected to the second end of the pivot handle for pivoting the pivot handle about the first axis to move the rack gear between the first and second positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.