Solvent cleaning system
US6004403A · kind A · utility
15Cited by
13References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1996 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | May 13, 2016 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F43/086
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A improved solvent cleaning method and system which is truly a closed system in which the object to be cleaned is placed in a chamber and subjected to a negative gauge pressure to remove air and other non-condensible gases after which a solvent is introduced to the evacuated chamber and the object is cleaned and then the solvent is recovered from the object and chamber within the closed system before the clean object is removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.