Methods for cleaning surfaces substantially free of contaminants
US6530823B1 · kind B1 · utility
40Cited by
42References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2000 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Aug 10, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1333
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A cryogenic cleaner for and a method of performing cleaning of a surface that must be substantially free of contaminants has a resiliently mounted nozzle for spraying a cryogenic cleaning medium on the surface. The nozzle is driven in an oscillatory manner at a predetermined amplitude and frequency so the nozzle spray is delivered in a manner to provide pulsing of the spray and to provide as “snow plow” effect on contaminants as the spray delivers the cleaning medium against the surface. The surface is transported past the nozzle, and the cleaning occurs in an enclosed controlled environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.