Shaker seal
US8960446B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Oct 28, 2010 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Oct 20, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B1/46
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A seal can have a middle portion, an upper lip, and a lower lip. The upper lip has a configuration with an upper end portion, an upper top portion, and an upper bottom portion with a void space defined in part by the upper end portion, the upper top portion, and the upper bottom portion. The lower lip can have a configuration with a lower end portion, a lower top portion, and a lower bottom portion with a void space defined in part by the lower end portion, the lower top portion, and the lower bottom portion. A middle portion connects the upper lip and the lower lip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.