Liveload assembly for rotary or reciprocating shaft packing
US5024453A · kind A · utility
20Cited by
4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1988 |
| Grant date | Jun 18, 1991 |
| Priority date | — |
| Expiry date | Dec 20, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49872
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A liveload assembly including an stack guide, compressed belleville washers stacked inside the stack guide and a retainer to hold the compressed washers in the stack guide. A longitudinal slot in the wall of the stack guide permits visual checking of the compression provided by the liveload assembly on the gland follower of the valve or pump. The rotary or reciprocating shaft of a valve or pump is liveloaded by placing the liveload assembly over the bolt securing the gland follower to the stuffing box. A nut is threaded on the bolt until it contacts the washers and the retainer removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.