Mold press force equalizer
US4753160A · kind A · utility
13Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1987 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Nov 20, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B15/061
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A mold press comprising a force equalizer independent of the mold platens. The force equalizer consists of a pair of plates defining a cavity therebetween. The cavity is filled with a force distributing material, such as hydraulic fluid. An opening is provided through the force equalizer to provide the extruder access to the mold plates. This opening is surrounded by a floating seal which permits movement of the equalizer plates with respect to the seal. The cavity is designed to extend beyond the chase footprint areas by an amount dictated by the size and relation of the footprint areas to one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.