System and method for transporting sand
US9718624B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2015 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Apr 17, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G2201/045
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A conveyor system for transporting sand including a transportation element for moving the sand, and a drive subassembly for moving the transportation element on a predetermined path. The drive subassembly includes a sprocket driven by a motor for moving the transportation element along the predetermined path, and a floating idler wheel supportable by the transportation element and positioned on the predetermined path downstream from the sprocket. The floating idler wheel is movable between an upper location and a lower location, depending on the tension to which the transportation element is subjected. The drive subassembly also includes a limit switch activatable upon the floating idler wheel moving to the lower location. Upon activation, the limit switch transmits a signal to a motor switch to de-energize the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.