Abstract: An air eliminator including a housing having first and second portions, the housing defining: a chamber, an inlet in fluid communication with the chamber; an outlet in fluid communication with the chamber; and an axis extending from the first portion to the second portion, a float assembly connected to the first portion of the chamber for releasing air from the chamber, and degassing disks stacked within the chamber along an axis, wherein each disk includes a plurality of rings such that the degassing disks cause micro gas pockets in water passing through the chamber to combine into relatively large and buoyant air pockets that collect and pass along the axis to the float assembly for release.

Abstract: A valve assembly including a body having a first end, a second end, a passageway extending between the first and the second ends, and four ports defined by the body and connected to the passageway. The assembly also has a first valve member received in the passageway at an intersection of the passageway and the first port, the valve member including a tee shaped passage such that in a first position the valve member opens the passageway and the first port, in a second position closes the passageway and connects the first end to the first port, in a third position closes the passageway and connects the first port to the second end, and in a fourth position opens the passageway and closes the first port. The assembly also includes a second valve member for opening and closing the third port.

Abstract: An air eliminator including a housing having first and second portions, the housing defining: a chamber, an inlet in fluid communication with the chamber; an outlet in fluid communication with the chamber; and an axis extending from the first portion to the second portion, a float assembly connected to the first portion of the chamber for releasing air from the chamber, and degassing disks stacked within the chamber along an axis, wherein each disk includes a plurality of rings such that the degassing disks cause micro gas pockets in water passing through the chamber to combine into relatively large and buoyant air pockets that collect and pass along the axis to the float assembly for release.

Abstract: A reinforced flexible hose extending between a first end and a second end and including a first non-toxic inner layer, a second layer surrounding and reinforcing the first layer, a third layer surrounding the second layer, a fourth layer surrounding and reinforcing the third layer, an outer layer made of plastic or rubber including an antimicrobial agent, and annular caps coating the ends of the flexible hose so that the intermediate layers are fully encapsulated. End connection terminals are attached to the hose ends over the caps.

Abstract: A lavatory carrier including at least one vertical upright, a horizontal cross plate, a clamp secured to the cross plate and releasably coupled to the upright, wherein the vertical position of the cross plate on the upright can be adjusted using the clamp, at least two horizontal arms for supporting a lavatory, and brackets secured to the arms and adjustably coupled to the cross plate. The positions of the arms, therefore, can be adjusted vertically and horizontally. In addition, horizontal positions of each of the arms on the cross plate can be independently adjusted using the brackets.

Abstract: A mixing valve includes a manifold defining a hot fluid inlet, a cold fluid inlet, a temperature-controlled fluid outlet, and a cold fluid outlet. The cold fluid inlet is in fluid communication with the cold fluid outlet, and the cold fluid inlet and the hot fluid inlet are in fluid communication with the temperature-controlled fluid outlet. The manifold further defines a mixing chamber for mixing of cold fluid from the cold fluid inlet and hot fluid from the hot fluid inlet. Mixed fluid from the mixing chamber is delivered to the temperature-controlled fluid outlet. A temperature-controlled device associated with the hot fluid inlet controls the volume of flow from the hot fluid inlet to the mixing chamber. The mixing valve further includes a one-way check valve located between the hot fluid inlet and the cold fluid outlet for limiting flow of hot fluid to the cold fluid outlet.

Abstract: A toggle linkage check valve includng a housing having an inlet and an outlet and a sealing plug disposed within the housing and adapted for movement between a first, closed position for preventing flow of liquid between the inlet and the outlet, and a second, open position for substantially permitting flow of liquid between the inlet and the outlet. The check valve includes a spring assembly removably disposed within the housing. The sealing plug is mounted upon the spring assembly. The spring assembly includes a rod member and a means for biasing the rod member toward the sealing plug. In the first position of the sealing plug, the rod member lies substantialy perpendicular to a plane of the sealing member across the inlet, and in the second position of the sealing plug, the rod member lies at an acute angle to the plane of the sealing member.

Abstract: A temperature control flow valve has a body defining conduits for connection to sources of cold and hot water, a chamber for mixing the water, and a thermostat element for maintaining the temperature of the mixed water at or below a predetermined maximum temperature. The cold and hot water are combined through a mixing valve in a ratio (adjusted continuously by means of the thermostat element) to provide the mixed water at the predetermined temperature. The flow valve includes cold water and hot water pressure regulators, the hot water regulator being responsive to the pressure of the cold water to maintain the pressure of the hot water delivered through the regulator substantially equal to the pressure of the cold water.

Abstract: A water hydrant defines an elongated flow passage having a water inlet and an air inlet, and a laterally extending water outlet spout disposed therebetween to define an outlet. An elongated rotatable stem is reciprocated within the flow passage, and terminates in an exterior handle. A water inlet valve is connected to the stem for control of flow from the water inlet into the passage and an air valve is connected to the stem to control inflow of air and preclude outflow of water through the air inlet. A first check valve in the spout precludes backflow of water into the passage, movement of the air valve opening the first check valve during operation of the handle. A second check valve in the spout downstream of the first check valve precludes backflow of water into the spout. A drain orifice, open to the atmosphere, extends through the spout between the check valves.

Abstract: A pressure-type vacuum breaker for use in a fluid flow line has a housing defining a central bore and an inlet, an outlet and a discharge vent. A piston assembly disposed within the central bore is movable within the bore between first and second positions. In the first position of the piston assembly, the inlet is closed, the discharge vent is open and the outlet is in communication with the discharge vent and the atmosphere. In the second position of the piston assembly, the discharge vent is closed, the inlet is open and the outlet is in communication with the inlet, thereby to permit liquid flow between inlet and outlet. The position of the piston assembly is in predetermined response to pressure of liquid at the inlet.

Abstract: A toggle linkage check valve including a housing having an inlet and an outlet and a sealing plug disposed within the housing and adapted for movement between a first, closed position for preventing flow of liquid between the inlet and the outlet, and a second, open position for substantially permitting flow of liquid between the inlet and the outlet. The check valve includes a spring assembly removably disposed within the housing. The sealing plug is mounted upon the spring assembly. The spring assembly includes a rod member and a means for biasing the rod member toward the sealing plug. In the first position of the sealing plug, the rod member lies substantially perpendicular to a plane of the sealing member across the inlet, and in the second position of the sealing plug, the rod member lies at an acute angle to the plane of the sealing member.

Abstract: There is described a lock plate assembly for use with a three-position ball valve. The valve has a body, a valve element disposed for rotation within the body, and a handle mounted for rotation upon the body for operation of (off) position, a second (test) position and a third (drain) position. The lock plate assembly includes a lock plate frame defining a first frame stop for the handle in the first position and a second frame stop for the handle in the third position, a slide latch defining a latch stop for the handle in the second position, the latch stop being mounted upon the frame for movement between a first latch position with the latch stop disposed to prevent movement of the handle to the third position, and a second latch position with the latch stop removed from the path of the handle, and a spring or the like for biasing the slide latch toward the first latch position.

Abstract: A water hydrant defines an elongated flow passage having a water inlet and an air inlet, and a laterally extending water outlet spout disposed therebetween to define an outlet. An elongated rotatable stem is reciprocated within the flow passage, and terminates in an exterior handle. A water inlet valve is connected to the stem for control of flow from the water inlet into the passage and an air valve is connected to the stem to control inflow of air and preclude outflow of water through the air inlet. A first check valve in the spout precludes backflow of water into the passage, movement of the air valve opening the first check valve during operation of the handle. A second check valve in the spout downsteam of the first check valve precludes backflow of water into the spout. A drain orifice, open to the atmosphere, extends through the spout between the check valves.

Abstract: A resetter device is for described use in a water supply system having a meter box and, extending therewithin, a system outlet from a water supply system and a system inlet to a water consumer system aligned on a main water supply axis and spaced apart by a predetermined distance selected to receive a water flow meter in connection therebetween. The resetter has a body defining first and second conduits, and first and second horns. The first conduit has a inlet for connection to the system outlet and an outlet connected to the first horn. The first horn defines a flow path from first conduit to a horn outlet. The second conduit has an inlet at which there is connected, via a joint, the second horn which defines a flow path from horn inlet to the second conduit. The horn inlet and outlet are opposed to each other and disposed along a water meter axis spaced from and lying at an acute angle to the main water flow axis.

Abstract: A coupling device for a liquid conduit system has a body defining a liquid flow passage and having an orifice defined by a generally cylindrical surface about an axis, and, disposed within the orifice, an insert. The cylindrical surface of the orifice defines a shoulder surface disposed generally parallel to the orifice axis. The insert has a threaded inner surface, and is sized for rotation relative to the orifice surface in a first direction about the orifice axis. The insert also defines an engagement surface that engages upon the orifice shoulder surface to restrict rotation of the insert relative to the orifice surface in the second, opposite direction. The insert is a split ring, and the engagement surface is defined by a radially aligned surface of the split ring.

Abstract: A fill valve assembly installed in a toilet flush tank includes a pressure relief valve adapted to activate at a predetermined pressure to discharge water from a system of piping to relieve pressure due to thermal expansion of water in the piping system.

Abstract: A backflow preventer comprising a body defining a passage for flow of liquid between a supply pipe and a service pipe, a check valve in the body passage, and a relief valve assembly connected to the body passage downstream of the check valve, the assembly comprising a liquid drainage passage connected to a first port in the body passage, a first valve in the drainage passage, a gas intake passage connected to a second port above the first port in the body passage, and a second valve in the intake passage.

Abstract: An improved separable connection, between conduit segments for conveying therethrough a fluid under pressure, is provided by flange and socket means that permits telescoping to initially locate the axes of the conduit segments within a plane, and then employing cam means to move the axes of the conduit segments into axial alignment while simultaneously moving the conduit segments axially toward each other to effect compression of seal means therebetween to effect a fluid-tight seal of the connected conduit means.

Abstract: A flow-through or in line type trap primer adapted to deliver a first metered spurt of water through a primer flow passage to a trap upon the initiation of flow in a supply line, and a second metered spurt of water upon the termination of such flow. A reaction disc in the main flow passage causes a stem to translate between two positions, and means cooperating with the stem cause the primer flow passage to be closed at said two positions and open as the stem moves between said positions. Manual as well as automatic priming is provided for.