Automated vacuum actuated control
US9840378B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2016 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Feb 12, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G65/32
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A hopper loader having a hopper connected to a vacuum source for applying a vacuum to the hopper to convey material into the hopper through a material inlet. A material separator is disposed between the material inlet and the vacuum source for filtering the material. A material discharge assembly is connected to the hopper and disposed for controlling downwardly gravity flow of the material from the hopper, the material discharge assembly having a material outlet configured to be opened and closed to control the discharge of material from the hopper. A vacuum detector is disposed between the material separator and the vacuum source. A vacuum activated control operatively connected to the vacuum detector and configured to turn off the vacuum source in response to a signal from the vacuum detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.