Valve assembly
US8375991B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 26, 2010 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Apr 30, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87909
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A valve assembly including a body having a first end, a second end, a passageway extending between the first and the second ends, and four ports defined by the body and connected to the passageway. The assembly also has a first valve member received in the passageway at an intersection of the passageway and the first port, the valve member including a tee shaped passage such that in a first position the valve member opens the passageway and the first port, in a second position closes the passageway and connects the first end to the first port, in a third position closes the passageway and connects the first port to the second end, and in a fourth position opens the passageway and closes the first port. The assembly also includes a second valve member for opening and closing the third port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.