Alternating state flow valve
US9116522B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 4, 2009 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Oct 6, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86413
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An improved sequencing fluid control valve comprising a housing having an inlet port and an outlet port, a valve seat disposed within the housing, a collapsible valve member disposed within the housing and forming a chamber and a bulb. A sequencing means disposed within the chamber that controls the axial motion of the valve member in response to application of fluid pressure at the inlet such that the motion of valve member alternates between an open free flowing state and a closed restricted flow state. Housing and valve member cooperate in the open position to provide an annular flow path that does not require the fluid flow direction to change by more than 45 degrees while flowing from inlet to outlet. Housing and valve member bulb cooperate in the closed position to form a circumferential seal to restrict the fluid flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.