A lever float valve comprising a float stem with a central vertical axis; a float body coupled to the float stem and rotatable relative to the central vertical axis of the float stem; a valve segment positioned within the float body and configured to pivot around a first axis perpendicular to the vertical axis; and a lever comprising a float arm and a float coupled to the valve segment and configured to pivot around a second axis perpendicular to the vertical axis.

A lever float valve comprising a float stem with a central vertical axis; a float body coupled to the float stem and rotatable relative to the central vertical axis of the float stem; a valve segment positioned within the float body and configured to pivot around a first axis perpendicular to the vertical axis; and a lever comprising a float arm and a float coupled to the valve segment and configured to pivot around a second axis perpendicular to the vertical axis.

Irrigation valves for channels and for irrigation tanks are of three types. All are activated by a pair of tilting float arms to which a pair of floats are attached. One type is a T-shaped duct with a cylindrical valve disposed at 90 degrees to the part that is connected to the incoming flow. The floats rotate the valve. The second type has the same construction as the first type, thereby giving flow control but additionally has a rise and fall gate in the duct part that is connected to the incoming flow. The gate acts as a stop valve. The third type has a cylindrical duct connectable to the incoming flow but no valve and provides both flow control and stop valve facilities through a rise and fall gate actuated by the tilting of the float arms.

A water vessel flotation system is disclosed comprising a plurality of inflatable bladders disposed within a vessel. In the event of capsizing or hull rupture, the bladders can be automatically inflated with compressed gas. Inflation of the bladders can be performed by one or more omni directional float triggered valves coupled between the compressed gas tanks and the bladders. Each valve is operated by a lever having a flexible link (e.g. a chain) attached to its end. The flexible link extends somewhat perpendicularly away from the lever end to pass through an eyelet at distal point. A float is attached to the flexible link after exiting the eyelet allowing the buoyant action of the float in any direction to cause the flexible link to be pulled toward the eyelet and thereby pulling the lever end and opening the valve.

A water vessel flotation system is disclosed comprising a plurality of inflatable bladders disposed within a vessel. In the event of capsizing or hull rupture, the bladders can be automatically inflated with compressed gas. Inflation of the bladders can be performed by one or more omni directional float triggered valves coupled between the compressed gas tanks and the bladders. Each valve is operated by a lever having a flexible link (e.g. a chain) attached to its end. The flexible link extends somewhat perpendicularly away from the lever end to pass through an eyelet at distal point. A float is attached to the flexible link after exiting the eyelet allowing the buoyant action of the float in any direction to cause the flexible link to be pulled toward the eyelet and thereby pulling the lever end and opening the valve.

Embodiments for an automatic fluid shut off device having a float disposed in a fluid catch basin attached to a first end of a flexible cable movable in an opposite direction of rising fluid in the catch basin; a second flexible cable end extending to a fluid supply base and terminating adjacent to a restrained spider assembly, the spider assembly configured to be rotationally displaceable upon a force by the second flexible cable end in response to a rising fluid in the catch basin; the spider assembly pivotably connected to a shut-off valve; and the shut off valve retained in an open position while the spider assembly is restrained, and under a rotational force to close the shut-off valve upon activation of the spider valve in response to the force by the second flexible cable end.

Embodiments for an automatic fluid shut off device having a float disposed in a fluid catch basin attached to a first end of a flexible cable movable in an opposite direction of rising fluid in the catch basin; a second flexible cable end extending to a fluid supply base and terminating adjacent to a restrained spider assembly, the spider assembly configured to be rotationally displaceable upon a force by the second flexible cable end in response to a rising fluid in the catch basin; the spider assembly pivotably connected to a shut-off valve; and the shut off valve retained in an open position while the spider assembly is restrained, and under a rotational force to close the shut-off valve upon activation of the spider valve in response to the force by the second flexible cable end.

A printer table for supporting a substrate during a printing operation comprises a substrate support surface comprising a plurality of apertures. The apertures are arranged such that a substrate placed on the printer table covers at least one of the apertures. The printer table comprises a plurality of ball valves arranged in fluidic connection with the apertures, where each of the ball valves has an open configuration and a closed configuration and is biased to the open configuration. The printer table also comprises a negative air pressure source configured to apply a negative air pressure through the plurality of ball valves to the plurality of apertures.

A printer table for supporting a substrate during a printing operation comprises a substrate support surface comprising a plurality of apertures. The apertures are arranged such that a substrate placed on the printer table covers at least one of the apertures. The printer table comprises a plurality of ball valves arranged in fluidic connection with the apertures, where each of the ball valves has an open configuration and a closed configuration and is biased to the open configuration. The printer table also comprises a negative air pressure source configured to apply a negative air pressure through the plurality of ball valves to the plurality of apertures.

Embodiments are provided for an automatic fluid shut off device having a float disposed in a fluid catch basin attached to a first end of a rod movable in a direction of rising fluid in the catch basin; a second rod end extending to a fluid supply base and terminating adjacent to a restrained latch arm end, the latch arm end configured to be pivotably displaceable upon a force by the second rod end in response to a rising fluid in the catch basin; the latch arm pivotably connected to a shut-off valve; and the shut off valve retained in an open position while the latch arm is restrained, and under a rotational force to close the shut-off valve upon a release of the latch arm in response to the force by the second rod end. The latch arm can be restrained by a latch arm retention notch extending downward and inward.