Refrigeration system service adapter
US5139049A · kind A · utility
68Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1990 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Nov 15, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87965
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A refrigeration system service coupling having a valved service adapter employing a spring biased sleeve valve to maintain the adapter valve in a closed no flow condition except when the service adapter is properly connected to a charging port of predetermined configuration and capable of retaining the service adapter sleeve valve to permit opening of the service adapter valve upon the service adapter being properly connected to the charging port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.