Hydrodynamic seal and method of manufacture
US6168164A · kind A · utility
17Cited by
23References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1998 |
| Grant date | Jan 2, 2001 |
| Priority date | — |
| Expiry date | Dec 8, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49798
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydrodynamic shaft seal assembly and method of forming hydrodynamic grooves involves forming a spiraling open channel portion in the face of the seal element, and cutting a flex-enhancing portion extending from the open channel portion further into the seal element to enhance the flexibility of the seal without further enlarging the open channel portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.