Arrangement for preventing air from reaching abutting sliding surfaces of rotary sliding closure unit
US4619444A · kind A · utility
1Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1985 |
| Grant date | Oct 28, 1986 |
| Priority date | — |
| Expiry date | May 13, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D41/26
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A rotary sliding closure unit includes stationary and rotary refractory members having respective discharge openings and fixed and rotary mounting devices for supporting the respective refractory members. The rotary member is rotated by the rotary mounting device with respect to the stationary refractory member along respective complementary abutting sliding surfaces thereof. Air is prevented from contacting the abutting sliding surfaces by an annular chamber defined between the fixed and rotary mounting devices and closed by an annular seal positioned therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.