Seal with contact element for pick shield
US8322796B2 · kind B2 · utility
1Cited by
275References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2009 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Feb 28, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In one aspect of the present invention, a degradation assembly comprises a pressing seal element and a pressurized rigid element disposed intermediate a rotating component and a stationary component. The rotating component comprising an impact tip bonded to an end opposing the stationary component. The seal element may energize the rigid element against one of the components to form a slidable seal capable of holding lubricant within the assembly and keeping debris out while still rotating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.