Reciprocating screening conveyor
US6000554A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 13, 1996 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | May 13, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S209/92
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A screening conveyor (10) for conveying particulate matter, such as comminuted wood fiber, in a forward direction while also screening to separate particles over a predetermined size from small particles under a predetermined size. The screening conveyor includes a frame (17, 50) and first and second conveyor bed sections (16, 30) supported by the frame. Each conveyor bed section defines a longitudinal axis and an upper surface (22) formed from a tiled series of trough shaped trays (20). Each tray defines a step including an ascending surface portion (96). The first and second conveyor bed sections are reciprocated in opposing balanced fashion along the longitudinal axis by a motor (48), cam assembly (54) and connecting rods (64, 66). The received particulate matter is carried on the stepped upper surfaces of the reciprocating conveyor bed and thrown forwardly from tray to tray. The upper surfaces further each define a plurality of apertures of predetermined size. Particulate matter is screened through first screening apertures (34) in the first conveyor bed section, with material below a predetermined size falling onto the second conveyor bed section. Material over the first prede…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.