Valve assembly
US8899387B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2010 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Oct 15, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87209
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A valve assembly including a housing (24′) provided with an inlet port (12′), a delivery port (14′), and an exhaust port (16′), the valve assembly further including a first movable element (32′), a first valve member (34a′) and a second valve member (26a′), the first movable element (32′) being engageable with the first valve member (34a′), engagement of the first valve member (34a′) and first movable element (32′) substantially preventing flow of fluid between the inlet port (12′) and the delivery port (14′), and the first movable element (32′) also being engageable with the second valve member (26a′), engagement of the second valve member (26a′) with the first movable element (32′) substantially preventing flow of fluid between the delivery port (14′) and the exhaust port (16′), the valve assembly further including a second movable element (26′) which divides the housing (24′) into a control chamber (22′) and a main chamber (30′) and which is movable relative to the housing (24′) under the influence of fluid pressure in the control chamber (22′) and main chamber (30′), wherein the first valve member (34a′) extends from the housing (24′) towards the first movable element (32′) thr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.