Air conditioner access and service fittings
US6273397A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1999 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Dec 27, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/88038
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An air conditioner access fitting includes a valve body having a threaded bore and an annular valve seat extending around the bore. A twist-to-open valve is disposed in the bore and threadedly engaged with the valve body. The valve includes a valve element configured to form a metal-to-metal seal with the valve seat. A valve core is disposed in a second bore formed in the twist-to-open valve, and the valve core operates selectively to open and close a flow path extending through the second bore. The valve body further includes a quick connect shoulder disposed around the bore. An associated service fitting includes a quick release mechanism, a wrench for rotating the twist-to-open valve, and a valve core depressor for opening the valve core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.