Injection valve arrangement with switched bypass and method
US11098558B2 · kind B2 · utility
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1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 2019 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | May 29, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An embodiment of an injection arrangement including a principal fluid pathway having a first check valve; a bypass pathway fluidly connected to the principal fluid pathway upstream of the first check valve and connected to the principal fluid pathway downstream of the first check valve. Also a method for injecting a fluid including supplying an injection fluid to an injection arrangement as in any prior embodiment; flowing fluid through the bypass pathway; preventing fluid flow through the bypass pathway; and then flowing fluid through the principal fluid pathway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.