Scrapers for scraper-chain conveyors
US4505379A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1982 |
| Grant date | Mar 19, 1985 |
| Priority date | — |
| Expiry date | Nov 17, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G19/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A scraper-chain conveyor has a scraper-chain assembly composed of a pair of outboard chains with scapers therebetween. The assembly passes along upper and lower runs and the lower run is enclosed. Each scraper has an upstanding front face and a lower foot face perpendicular thereto. The foot face slides along a floor of the conveyor and a scraping edge between the front and lower faces transfers material in the upper run. To prevent fine material building up in the lower run, the scraper has a further scraping edge formed between the front face and an upper face generally parallel to the lower face. This further scraping edge slides along the base of the lower run.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.