Device having a hard seat support
US9212536B2 · kind B2 · utility
3Cited by
22References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2012 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Jun 14, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/05
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A device having a hard seat support disposed with a hard seat to reduce or prevent buckling, bursting, and/or permanent deformation of the hard seat that compromises the seal across the hard sealing surface and flapper sealing surface interface. The hard seat support may be positioned along an inner periphery of the hard seat or in direct contact with an outer periphery of the hard seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.