Spot cleaning system and method
US5253378A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 1992 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Apr 30, 2012 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F43/002
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A substantially self-contained system and corresponding method provides practical spot cleaning of soiled garments without requiring the use of chlorinated solvents. A soiled garment may optionally be pretreated with either of a water based or petroleum based nonchlorinated cleaner. Thereafter, a relatively high level of vacuum force is applied to the soiled garment to be cleaned, and comprises the flushing agent for both the soil and the pretreatment cleaner. Drying effects obtained with the vacuum force may be augmented by the addition of compressed air directed onto the garment. A self-contained workstation practicing such methodology may optionally include an electric water boiler for generating steam to be applied as a supplement to vacuum and also include an industrial grade vacuum pick-up with a waste collector for generating the relatively high vacuum force, preferably at least about 80 inches of mercury of static pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.