One-piece core plug
US5915647A · kind A · utility
5Cited by
15References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 8, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Aug 8, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/5122
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A core plug includes a tube formed from a light-weight material, such as woven carbon fibers, inserted into and connected to a steel rib assembly. The rib assembly includes a series of ribs surrounding the tube, where each rib includes a beam parallel to the tube and columns connecting the beams to the tube. The tube can extend the complete length of the rib assembly or the rib assembly can extend beyond the end of the tube. A high molecular weight journal is inserted in the outer end of the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.