Belt press with enclosed hydraulic actuator
US4388860A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 1981 |
| Grant date | Jun 21, 1983 |
| Priority date | — |
| Expiry date | Dec 2, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/709
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A belt press has at least one upper and at least one lower traverse respectively having lower and upper traverse faces, connectors extending vertically between the upper and lower traverses and securing the lower traverse to the upper traverse, upper and lower press platens carried on and between the traverses and having respective upper and lower platen faces respectively confronting the lower and upper traverse faces, and a hydraulic actuator for displacing the platens toward each other and thereby pressing the platens against a belt engaged therebetween. At least one of the traverses is formed of box section. The hydraulic actuator is engaged between the traverse face of the one box-section traverse and the confronting platen face and has a U-section pressure plate having a base bearing on the confronting platen face and a pair of flanges extending toward the one traverse face, at least one cushion forming at least one substantially closed chamber and lying between the flanges, and a pump for pressurizing the chamber. The cushion bears in one direction in surface contact on the pressure plate and in the opposite direction in surface contact at least indirectly on the face of the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.