Rotating flow head apparatus
US9435165B2 · kind B2 · utility
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16References
19Claims
0Family size
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Key dates
| Filing date | Feb 5, 2014 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Oct 25, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus comprises a mandrel having a longitudinal axis and further comprises a plurality of pivoting elements spaced apart along a circumference of a cross-section of the mandrel. Each of the pivoting elements is pivotable around a transversal axis that is perpendicular to the longitudinal axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.