A centrifugal gas compressor with rotating hollow housing and an independently rotating, turbine compresses gas bubbles in capillary tubes and recovers energy from the liquid drain (sometimes a liquid recycler). The housing rotatably retains an internal spool having the turbine. Gas-liquid emulsion fed to the capillaries generates compressed gas-liquid emulsion at a radially distal annular region in an annular lake within the spool. Compressed gas leaves the lake and is ported away. A turbine blade edge in spilt over liquid drives the turbine, converting angular velocity/momentum into shaft torque as recovered energy. Blade captured liquid is recycled to capillary inputs.

A safety system for a fish-tank siphon is an apparatus used to prevent suction of a fish-tank-cleaning siphon from becoming obstructed by fish, underwater plant life, rocks, or other large tank contaminants. The apparatus is configured to protect the intake by preventing potential obstructions from entering the siphon at all. The apparatus includes a grate, a mating mechanism, and a siphon inlet. The grate acts as a protective filter, preventing large items from entering a connected fish-tank-cleaning siphon. The mating mechanism allows for connection of the present invention to a fish-tank-cleaning siphon. The siphon inlet is a section of the fish-tank-cleaning siphon through which the vacuum is applied in order to remove dirty water and water contaminants. The general configuration of these components allows the apparatus to prevent a fish-tank-cleaning siphon from incidentally collecting fish or other underwater creatures, plant life, pebbles, or other contaminants while vacuum-cleaning a fish tank.

A safety system for a fish-tank siphon is an apparatus used to prevent suction of a fish-tank-cleaning siphon from becoming obstructed by fish, underwater plant life, rocks, or other large tank contaminants. The apparatus is configured to protect the intake by preventing potential obstructions from entering the siphon at all. The apparatus includes a grate, a mating mechanism, and a siphon inlet. The grate acts as a protective filter, preventing large items from entering a connected fish-tank-cleaning siphon. The mating mechanism allows for connection of the present invention to a fish-tank-cleaning siphon. The siphon inlet is a section of the fish-tank-cleaning siphon through which the vacuum is applied in order to remove dirty water and water contaminants. The general configuration of these components allows the apparatus to prevent a fish-tank-cleaning siphon from incidentally collecting fish or other underwater creatures, plant life, pebbles, or other contaminants while vacuum-cleaning a fish tank.

A water detention system for detaining storm water having a side wall and a bottom floor; an inlet conduit for ingress of storm water; and a water discharging assembly, which includes a siphon, configured to pass storm water there through; and an outlet conduit for egress of storm water from the water discharging assembly. The inlet and outlet conduits are disposed through the side wall of the water detention system. A water discharging assembly for discharging storm water from a water detention system includes an outer enclosure; a first opening in the outer enclosure for ingress of water; a second opening in the outer enclosure for egress of water; and a siphon disposed within the outer enclosure; where, except of the first opening and the second opening, the outer enclosure is substantially fluid tight.

A water detention system for detaining storm water having a side wall and a bottom floor; an inlet conduit for ingress of storm water; and a water discharging assembly, which includes a siphon, configured to pass storm water there through; and an outlet conduit for egress of storm water from the water discharging assembly. The inlet and outlet conduits are disposed through the side wall of the water detention system. A water discharging assembly for discharging storm water from a water detention system includes an outer enclosure; a first opening in the outer enclosure for ingress of water; a second opening in the outer enclosure for egress of water; and a siphon disposed within the outer enclosure; where, except of the first opening and the second opening, the outer enclosure is substantially fluid tight.

A hydrostatic pressure to kinetic energy conversion system comprises a hydraulic head water column having a lower end which diverges to a pair of pressure channels. A valve system interfaces the water column and the pressure channels so that hydrostatic pressure from the water column alternately pressurises each channel. The system further comprises racks forced by pistons to act oppositely to rotate a driveshaft therebetween. Furling bladders within the channels forcibly unfurl under pressure to force the pistons. Proximal ends of the pistons may comprise sufficiently small diameter for envelopment by the furling bladders.

A system for supplying a liquid. A reservoir tank has a low level and a high level of the liquid. A pump is submerged in the liquid within the reservoir tank. The pump has an inlet to receive the liquid from a source outside of the reservoir tank and an outlet to deliver the liquid to a destination outside of the reservoir tank. A bleed path places the pump outlet in fluid communication with the reservoir tank. The bleed path has a bleed valve controlling the flow of liquid through the bleed path to maintain the liquid level in the reservoir tank above the low level. A recirculation path places the pump inlet in fluid communication with the reservoir tank. The recirculation path has a recirculation valve controlling the flow of liquid through the recirculation path to maintain the liquid level in the reservoir tank below the high level.

A system for supplying a liquid. A reservoir tank has a low level and a high level of the liquid. A pump is submerged in the liquid within the reservoir tank. The pump has an inlet to receive the liquid from a source outside of the reservoir tank and an outlet to deliver the liquid to a destination outside of the reservoir tank. A bleed path places the pump outlet in fluid communication with the reservoir tank. The bleed path has a bleed valve controlling the flow of liquid through the bleed path to maintain the liquid level in the reservoir tank above the low level. A recirculation path places the pump inlet in fluid communication with the reservoir tank. The recirculation path has a recirculation valve controlling the flow of liquid through the recirculation path to maintain the liquid level in the reservoir tank below the high level.

A siphon elbow for pivotally connecting a first pipe and a second pipe in fluid communication. A first elongated body has a bore extending therethrough and a partially spherical indentation within the bore. A second elongated body has a bore extending therethrough and a generally spherical extension on a first end that pivotally engages the partially spherical indentation of the first elongated body. An internal locking system is disposed in at least one of the bores and locks the second elongated body into an operating configuration in which an angle formed between the first elongated body and the second elongated body is less than 180-degrees. Pivoting of the second elongated body from an installation configuration in which the angle is approximately 180-degrees to the operating configuration activates the internal locking system.

A siphon elbow for pivotally connecting a first pipe and a second pipe in fluid communication. A first elongated body has a bore extending therethrough and a partially spherical indentation within the bore. A second elongated body has a bore extending therethrough and a generally spherical extension on a first end that pivotally engages the partially spherical indentation of the first elongated body. An internal locking system is disposed in at least one of the bores and locks the second elongated body into an operating configuration in which an angle formed between the first elongated body and the second elongated body is less than 180-degrees. Pivoting of the second elongated body from an installation configuration in which the angle is approximately 180-degrees to the operating configuration activates the internal locking system.