Molding die stem with sleeve
US4251202A · kind A · utility
4Cited by
11References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1978 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Sep 27, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C25/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A die stem for an extrusion press connected at its one end to a die holder including a first connecting construction such as a screw or a bayonet provided in the inner bore of the end portion of a sleeve received by the inner bore of the die stem, and a second connecting construction such as a screw or a bayonet provided at the rear end projection of the die holder, the second connecting construction being adapted to cooperate with the first connecting construction, whereby the compression stress at the connecting portion thereof due to the extrusion force is prevented from taking place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.