Sealing ring for a dry running piston rod
US6367808B1 · kind B1 · utility
5Cited by
10References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1997 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Dec 12, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/946
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sealing ring, in particular for a piston rod with a circular cross-section, which has a height in the axial direction as well as a surface oriented towards a sliding surface, with the surface being executed to extend cylindrically over a part of the height in order to form a sealing surface and being executed to become wider along a further part. The sealing ring has a high sealing action in the axial direction so that a majority of the gas flows out between the piston rod and the sealing surface so that a gas storage arises.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.