Stopper body
US8173081B2 · kind B2 · utility
0Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2009 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Oct 31, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D41/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A stopper body of refractory material and cylindrical shape having a first end (10), a second end (14) and an intermediate zone (12) there between, with a bore (16) of circular cross section, extending from said first end (10) in an axial direction of the stopper body into said intermediate zone (12) towards the second end (14), wherein the said bore being provided with an enlarged cross section (at 16s) along at least part of said intermediate Zone (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.