Piston with lubricant-scraping ring and lubricant return ports
US6135008A · kind A · utility
2Cited by
15References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1998 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Mar 16, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J9/206
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A piston assembly including a piston having a work surface, a sidewall extending from the work surface, and ports in the sidewall. The piston assembly also includes a flexible lubricant-scraping ring clamped to the piston between the work surface and the ports, with the lubricant-scraping ring having an outer edge extending outwardly beyond the sidewall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.