| MICROSTAQ, INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120000550 | Fluid Flow Control Assembly - A device has been disclosed that may include a spool valve including a body having a first connector and a second connector and a spool movable relative to the body for controlling flow between the first connector and the second connector. The reversible flow control assembly further may include a pilot valve device developing a single pressure command in the form of a fluid at a command pressure. The spool valve may be responsive to the single pressure command developed in said pilot valve device to control flow between the first connector and the second connector without regard to the direction of flow. The majority of axial forces acting on the spool to position the spool relative to the body when fluid is flowing through the valve may be fluid forces. | 01-05-2012 |
| 20110127455 | Improved Microvalve Device - A microvalve device includes a body, a valve element supported for movement relative to the body, and an actuator operatively coupled to the valve element for moving the valve element in a normal range of travel. A travel limiting structure operatively cooperates with at least one of the valve element and the actuator to effectively limit the magnitude of movement of the valve element or the actuator outside the normal range of travel to prevent failure of the body, the valve element, or the actuator due to exceeding failure stress limits. A method of forming a microvalve with such a travel limiting structure is also disclosed. | 06-02-2011 |
| 20100038576 | MICROVALVE DEVICE WITH IMPROVED FLUID ROUTING - A microvalve device for controlling the supply of pressurized fluid to a load in a fluid circuit, and having multiple internal fluid conduits for providing pressure feedback. | 02-18-2010 |
| 20100012195 | MICROVALVE DEVICE WITH PILOT OPERATED SPOOL VALVE AND PILOT MICROVALVE - The microvalve device includes a pilot microvalve and a pilot operated spool valve. The pilot microvalve includes a pilot input orifice; a pilot output orifice, at least one of the pilot input orifice and the pilot output orifice having a cross-section flow area that changes as the pilot microvalve is actuated; and a passageway providing fluid communication between the pilot input orifice and the pilot output orifice. The pilot operated spool valve includes a spool having a surface in fluid communication with the passageway; a spool input port; and a spool output port, at least one of the spool input port and the spool output port having a cross-section flow area that changes as the spool is actuated. The spool valve is operable by the pilot microvalve such that a ratio of the cross-sectional flow area of the spool input port to the spool output port will substantially equal to a ratio of the cross-sectional flow area of the pilot input orifice to the pilot output orifice. The spool valve may be a microvalve or a standard size valve. | 01-21-2010 |
