Apparatus and method for injecting a concentrated fluorescent dye into a sealed air-conditioning system
US6469300B1 · kind B1 · utility
5Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2000 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | May 30, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2500/222
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An apparatus and a method for injecting a concentrated fluorescent dye into a sealed air-conditioning system prior to the system going into service are revealed. The apparatus is made of a heated reservoir connected to a heated hose which is connected to a heated injector. The method involves heating a fluorescent dye to form a molten liquid fluorescent dye, maintaining the liquid fluorescent dye at a constant temperature and viscosity and injecting the liquid fluorescent dye into a component of a sealed air-conditioning system prior to the system going into service.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.