Scraper ring
US11692543B2 · kind B2 · utility
2Cited by
31References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 20, 2020 |
| Grant date | Jul 4, 2023 |
| Priority date | — |
| Expiry date | Sep 16, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B1/0538
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An annular scraper ring for a packing arrangement is disclosed. The annular scraper ring that can form a seal with a plunger included in a fluid end of a reciprocating pump and includes a planar upstream face and an inner surface with a tapered section. The tapered section tapers away from the plunger along a downstream direction so that the scraper ring is widest at the planar upstream face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.