Directed-flow conduit
US8025271B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2008 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Jul 23, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87249
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Device including channel having channel input and output. Channel has interior channel surface extending along channel path from channel input to output. In one implementation, channel includes plurality of channel sections in serial communication along channel path. Each of channel sections includes first internal circumference spaced apart along channel path from second internal circumference, in each of channel sections the first and second internal circumferences being substantially different. Each of channel sections includes sub-surface of interior channel surface. At least region of sub-surface of each channel section includes distribution of raised micro-scale features. As another implementation, at least first region of interior channel surface includes distribution of raised micro-scale features interrupted by plurality of raised barriers spaced apart along channel path on interior channel surface. Each raised barrier extends on interior channel surface in directions partially transverse to and partially parallel to longitudinal axis. Method also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.