Refrigerant charging hose assembly
US6385986B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Nov 19, 2001 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Nov 19, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2345/006
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A refrigerant charging hose assembly has an aerosol shut-off valve connectable to a refrigerant canister and interconnected to a disconnect coupler fitting by a length of refrigerant charging hose, the body portion of the coupler fitting being economically formed from high tensile strength elastomeric plastic material. A spring-loaded, floatingly supported control pin member is shifted to open the disconnect coupler fitting when the pin member engages and depresses a corresponding pin member within an air conditioning system service fitting to which the coupler fitting is connected. when the coupler fitting is removed from the service fitting the coupler fitting pin member is spring-driven back to its original position in which a flange portion thereof closes the coupler fitting to prevent discharge of pressurized refrigerant therethrough from the canister.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.