Sealing device having high differential pressure opening capability
US9580992B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 6, 2014 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Aug 27, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86879
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A sealing device is used in a flow control apparatus, the sealing device including a static seal and a protective seal or fluid restriction. The protective seal is formed between two members formed from resilient materials being substantially resistant to wear or failure when exposed to large pressure differentials and associated jetting action. The static seal is formed using a sealing element that includes a material that is at least partially deformable, such as an elastomer or the like. The protective seal is engaged prior to engaging or disengaging the static seal in order to prevent damage to the deformable material of the static seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.