Screen cleaning system
US8974564B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2011 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Jul 18, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S180/90
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A screen cleaning system cleans debris from a material catching screen surrounded by a frame. A hollow vacuum arm which moves over the screen. The arm has a slot in a side which is adjacent to the screen. The arm includes an inner arm pivotally coupled to a duct and an outer arm which movable with respect to the inner arm. The arm is moved by an actuator mechanism which includes a first pulley coupled to a drive shaft, a second pulley coupled to an end of the arm, a belt drivingly coupling the first pulley to the second pulley. The outer arm is slidably coupled to the inner arm and a spring is biased to urge the outer arm radially inwardly. A track is formed by the frame and a roller rides along the track and is rotatably coupled to an end of the outer arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.