Dummy block for extrusion press
US9839950B2 · kind B2 · utility
0Cited by
1References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 21, 2015 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Aug 14, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C33/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A dummy block for a metal extrusion press comprises a base having a first surface; an expandable collar seated against the base; a moveable plunger coupled to the base and accommodated by the collar, the plunger having a second surface configured to abut against the first surface of the base; and an outer connecting ring coupling the collar to the base. The connecting ring comprises at least one feature engaging the base and a plurality of fingers engaging the collar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.