Apparatus to clear oil from the hoses and front end of a recovery recharge machine
US8272228B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2008 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | Feb 6, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/18
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A refrigerant recovery unit is provided that can recover and recharge refrigerant. The unit is further configured with a pair of service hoses and a refrigerant control circuit operable to receive and transport the refrigerant between the hoses and the storage vessel and to process the refrigerant to substantially remove contaminants from the refrigerant. A fluid connector is provided in fluid communication with the hoses to enable the refrigerant to flow between the hoses and to establish a closed loop through the refrigerant control circuit, and a controller is operatively connected to the refrigerant control circuit and configured to control a flow of the refrigerant through the refrigerant control circuit and through the fluid connector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.