Thermostat housing with integral valve
US6679431B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2002 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Dec 6, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/309
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A plastic thermostat housing having a vent passage including a valve portion (46), a cap portion (48), and an outlet portion (54), with the cap portion (48) being larger in cross sectional area than the cap, portion (48). A check valve (52) is inserted into the valve portion (46) and a cap (50) with a vent hole (56) is inserted into the cap portion (48) for retaining the check valve (52) in the vent passage. The assembly is characterized by the plastic material of the housing (12) being deformed into engagement with the cap (50) for retaining the cap (50) in the valve portion (48) of the vent passage. The cap (50) may comprise a plastic material to be fused to the housing (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.