Scraper ring assembly
US12018676B2 · kind B2 · utility
1Cited by
28References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 21, 2023 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Jun 21, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/2607
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An annular scraper ring assembly for a packing arrangement that can form a seal with a plunger included in a fluid end of a reciprocating pump includes a first ring having an upstream face and an inner surface cooperatively forming an edge and a second ring having a downstream face configured to engage the upstream face of the first ring and urge the edge of the first ring inwards so that the edge of the first ring is positioned inwardly beyond the second ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.