Bubbler container automatic refill system
US4979545A · kind A · utility
47Cited by
15References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1990 |
| Grant date | Dec 25, 1990 |
| Priority date | — |
| Expiry date | Jul 31, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7287
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An automatic refill system for a liquid chemical temperature controller is provided wherein replenishing liquid chemical is automatically supplied from a chemical bulk supply to a bubbler ampule in the liquid chemical temperature controller based on sensed level depths in a manner that avoids contamination of the replenishing chemical.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.