An dual acting solenoid valve (DASV) is a device for controlling mediums as gases or fluids through two valves simultaneously using a dual position latching solenoid operated with a bi-stable permanent magnet activation system (BSPMAS) to allow the DASV to be electrically energy efficient and power versatile.

A method and apparatus for a vehicle suspension system gas spring. In one embodiment, a vehicle suspension system gas spring includes a compressible main gas chamber and an additional volume combinable with the main chamber to change a gas spring rate of the system. In one embodiment, a low friction piston seal is created by a flexible seal member.

An dual acting solenoid valve (DASV) is a device for controlling mediums as gases or fluids through two valves simultaneously using a dual position latching solenoid operated with a bi-stable permanent magnet activation system (BSPMAS) to allow the DASV to be electrically energy efficient and power versatile.

A method and apparatus for a vehicle suspension system gas spring. In one embodiment, a vehicle suspension system gas spring includes a compressible main gas chamber and an additional volume combinable with the main chamber to change a gas spring rate of the system. In one embodiment, a low friction piston seal is created by a flexible seal member.

Provided is a backwash valve comprising a body including a central tube extending along a length of the body, a first pool port and first filter port axially aligned at a first position along the body length, a second pool port and second filter port axially aligned at a second position along the body length, and a waste port; and a sliding gate including a stem connected to a gate body, the gate body including first and second chambers separated by an internal wall; the sliding gate movable between a filter position wherein fluid communication is provided among the first filter port, first chamber, and first pool port, and a backwash position wherein fluid communication is provided among the first filter port, second fluid chamber, and second pool port, and between the second filter port and waste port.

A flow through isolation valve having a stationary member; a movable member, with a surface of the stationary member interfacing with a surface of the movable member; and at least one pin isolation valve. The pin isolation valve has a flow through internal conduit and is movable so that the internal conduit can fluidically communicate with at least one blank opening in the movable member and with a flow through internal conduit in the movable member. Movement is by rotation, linear or curvilinear translation. At least one pin isolation valve is fluidically coupled typically to a sample loop of a face seal valve, or to a pump supplying high pressure liquid to or to a column discharging liquid from a face seal valve of a high pressure liquid chromatography (HPLC) system or directly to the face seal valve.

A hands-free faucet control device includes a water valve assembly, a foot peddle assembly and a pull wire connected there between. A continuously-formed injection molded valve housing includes two cylindrically-shaped apertures disposed adjacent to one another where each has an inlet water port and an outlet water port. A valve is disposed in each of the apertures, where both valves are simultaneously movable between a closed position and an open position. A foot pedal assembly includes a foot peddle bracket and an attached foot pedal, where the foot pedal is movable between an up position and a down position. A pull wire is connected at a pull wire first end to the proximal end of the valve and connected at a pull wire second end to the foot pedal, wherein movement of the foot pedal to the down position by a user moves the valves to the open position.

The present disclosure is directed to an acoustically actuated flow valve having temperature-sensitive reed valves thereon. The flow valve and reed valves are configured to impart acoustical energy into a fluid flowing through the flow valve and one or more fluids downstream of the valve, leading to increased mixing of the fluids. The reed valves are further configured to be temperature-sensitive, thereby allowing more fluid to flow through the flow valve as the result of a change in temperature.