Floating seal stuffing box for silo with reciprocating frame
US8267635B2 · kind B2 · utility
4Cited by
18References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2009 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Jan 4, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G69/08
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A silo includes a stuffing box forming for use with a reciprocating frame. A push-rod extends from a hydraulic cylinder through a stuffing box and a silo wall to actuate a reciprocating frame. The stuffing box forms a floating seal around the push-rod capable of moving with the push-rod to accommodate misalignment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.