Peripheral knife gate seal
US5154397A · kind A · utility
11Cited by
8References
20Claims
0Family size
Inventors
Key dates
| Filing date | May 20, 1991 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | May 20, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7036
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A trapezoidal shaped peripheral seal is inserted in a trapezoidal cast peripheral groove in the valve body. A relief cut-out is disposed beneath the peripheral groove. The sealing function is effected by loading the peripheral seal with the gate so as to deflect the seal into the groove a relief cut out which places the seal in a shear mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.