Air fitting with an integral check valve
US7353842B2 · kind B2 · utility
2Cited by
14References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2004 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Aug 12, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7927
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An air fitting with an integral check valve includes a housing having an inlet and at least one outlet, a passage extending between the inlet and the at least one outlet with a valve seat being formed in the passage adjacent the at least one outlet with a portion between the outlet and the valve having a plurality of channels separated by lands which form a guide surface for the valve as it is being forced onto the valve seat by a spring. The channels allow passage of air around the valve member with less restriction when the valve member is lifted off the valve seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.