Live load packing system
US5230498A · kind A · utility
53Cited by
18References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1992 |
| Grant date | Jul 27, 1993 |
| Priority date | — |
| Expiry date | Jun 15, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8225
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved live load packing system for sealing an operating valve member in a fluid valve A packing follower includes a base and a guide sleeve adapted for slidable engagement on the operating valve member. A series of Belleville disk springs slidably engage the guide sleeve and maintain concentric mounting during loading of V-type TFE packing members to ensure uniform concentric spring loading and to prevent undesired side loading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.