Idler control system for a cable conveyor
US9132965B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 2014 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | May 29, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G43/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An improvement to cable conveyor system using a pneumatic cylinder system for keeping a cable tight is provided for preventing damage to the system if the cable stretches/fails or is too loose. The fluid cylinder/piston applies a force on the cable proportionate to the pressure that is regulated to the cylinder during normal operation of the cable conveyor system. The relative position of a magnetic switch and a magnet on a piston in the cylinder, provides a way to sense a lack of tension in the cable and shut the system down before damage is done to the conveyor. Likewise, if the cable stretches or fails, a carriage having an idler thereon, will move close enough to a proximity switch to cause the proximity switch to shut down the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.