Alternative state flow valve
US8752582B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 2010 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Jul 11, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86911
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved sequencing fluid control valve comprising a housing having inlet and outlet ports, 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 substantially change 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. Alternative embodiments including viscous damping means and variations on the housing mount are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.