Nozzle for cryogenic particle blast system
US5660580A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1995 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Feb 28, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24C5/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A convergent-divergent Single/Multiple Expansion wave contour wall and wave Reflection solid wall Nozzle (S/MERN) for use with particle blast systems is provided which includes a single contoured converging-diverging wall opposing a generally flat, solid wall disposed generally parallel to the direction of the jet flow. The transition from a circular delivery hose to the rectangular throat of the S/MERN nozzle is preferably in only one dimension, with the distance between the side support walls being substantially the same as the diameter of the delivery hose. The S/MERN nozzle relies on reflection from the flat, solid wall for Mach wave expansions, rather than reflections of opposing expansion waves as in conventional nozzles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.