Abstract: A diaphragm pump is provided that features a valve housing configured with inlet openings and outlet openings; inlet duckbill check valve assemblies, each configured to be arranged in a respective inlet opening; and outlet duckbill check valve assemblies, each configured to be arranged in a respective outlet opening; each duckbill check valve assembly comprising: a duckbill check valve seat configured with an end having a slit to open to provide the fluid and particulate, and to close to prevent the backflow of the fluid and particulate; and a duckbill check valve support having a base portion configured to be inserted inside the duckbill check valve seat, and having a W-shaped portion configured with an opening to pass the fluid and particulate through the duckbill check valve support to the duckbill check valve seat and also configured to provide support for walls of the duckbill check valve seat in response to back pressure caused by the fluid and particulate.

Abstract: A UV disinfection system for waste water and drinking water, includes a number of UV radiators arranged in cladding tubes, the cladding tubes being configured essentially symmetrically to a longitudinal axis, as well as a cleaning device for the cladding tubes. The cleaning device includes at least one cleaning ring for each cladding tube, which surrounds the cladding tube, the at least one cleaning ring having a scraper ring resting against the cladding tube, at least one drive for driving the cleaning ring in the direction of the longitudinal axis, and supply provisions for supplying pressurized fluid under elevated pressure from a pressure source to the scraper ring are provided, wherein pressure may be applied onto the scraper ring from the pressure source in the direction of the cladding tube.

Abstract: A diffusor for diffusing a gas into a liquid including a membrane, a supporting structure supporting the membrane and a holder arranged to connect the supporting structure to a gas supply conduit, at least a part of the membrane being perforated. The membrane defines an inner chamber, and at least a part of the supporting structure is arranged in the inner chamber of the membrane, the supporting structure including at least one channel extending from an inlet opening that is in, direct or indirect, fluid communication with the gas supply conduit to an outlet opening that is in fluid communication with the inner chamber of the membrane.

Abstract: Disclosed herein is a sliding vane pump for providing positive displacement of a fluid such as water. The pump comprises a pump assembly having a housing with a fluid inlet and a fluid outlet formed therein, a lining member received in the housing and defining a substantially cylindrical inner surface and a rotor arranged inside the lining member to rotate about a rotational axis. The rotor defines a substantially cylindrical outer surface such that the inner surface of the lining member and the outer surface of the rotor define a working space therebetween, the working space having a radial cross-sectional area which varies about the rotational axis. The pump assembly also comprises a plurality of vanes received in substantially radial slots formed about the outer surface of the rotor.

Abstract: Apparatus is provided for use in a submersible pump, comprising; a stator having electrical windings and configured with a cavity to receive a rotor of a motor and to provide an electromotive force to drive the rotor arranged inside the cavity; a switch having circuitry configured to response to a level of fluid and control the operation of the stator; and electrical leads and connections configured to electrically couple the stator and the switch, and to provide power to operate the stator and the switch to drive the stator and to turn the electromotive force on and off to control the pumping of the fluid by submersible pump; the stator, the switch and electrical leads and connections being at least partly encapsulated in a material so as to form an encapsulated stator assembly with a watertight seal to prevent fluid from contacting the electrical windings, the circuitry of the switch and the electrical leads and connections.

Abstract: Apparatus, including an ultrasonic liquid level gauge and control system, includes a gauge configured to be coupled on the outside of a device, having a boiler or hot water tank, having liquid contained therein. The gauge is also configured to receive and contain a small part of the liquid of the device; and an ultrasonic transducing and signal processing arrangement configured to: reflect an ultrasonic pulse off a liquid surface of the small part of the liquid of the device contained in the gauge, and determine the level of liquid in the device based at least partly on a time of flight analysis related to the ultrasonic pulse reflected off the liquid surface of the small part of the liquid of the device contained in the gauge.

Abstract: A partition for fluid tight sealing between a motor compartment and a coupling compartment of an immersible machine is described. The partition includes a partition wall having a seat, and at least one coupling terminal arranged in the seat, the coupling terminal being accessible from a primary side of the partition, and from a secondary side of the partition. A sealing member is located in at least a part of the interface between the seat of the partition wall and the coupling terminal, and a retention means is arranged to retain the coupling terminal in the seat. The coupling terminal includes a primary spring clip engageable from the primary side and a secondary spring clip engageable from the secondary side. Also disclosed is an immersible machine including such a partition.

Abstract: A disposable pump head and canister assembly is provided having a disposable pump head having an upper housing with an input port and an output port, and being configured to be engaged to a motor so as to pump fluid into the input port, through the disposable pump head, and out the output port, the upper housing configured to couple to a support plate via a plurality of upper housing flexible tabs that snap fit to corresponding structure of the support plate and configured to be frictionally engaged to a motor so as to pump fluid into the input port, through the disposable pump head, and out the output port; and a canister having an exterior wall portion, a cover and a latching arrangement, where the exterior wall portion is configured so as to form an interior cavity dimensioned to receive the disposable pump head, and where the cover is configured to close and be latched to the exterior wall by the latching arrangement so as to frictionally engage the disposable pump head and the motor.

Abstract: The present invention relates to a submersible centrifugal pump assembly comprising an impeller suspended in the end of a drive shaft, and driven in rotation relative to an impeller seat which is stationary in normal operation and which defines an axial intake for liquid to be transported by the impeller in rotation. The pump assembly is characterized in that the impeller seat is journalled in a pump housing for limited rotational movements in opposite directions of rotation relative to the pump housing, and in rotation controlled in guide means for limited linear displacements in opposite axial directions relative to the impeller.

Abstract: An electrode arrangement for an ozone generator with a tubular outer electrode, which concentrically encloses a tubular dielectric at a distance therefrom, wherein the dielectric concentrically encloses a rod at a distance therefrom and wherein a filler material is provided in the interstice between the outer electrode and the dielectric and another filler material is provided in the interstice between the dielectric and the rod, wherein the rod is an insulator.

Abstract: A channel for a UV irradiation device, in which the UV irradiation device is disposed in a closed channel and an inlet cone is provided in the direction of flow upstream of a UV reactor, which, as part of the wall of the channel, increases the cross section of the channel from an incoming pipeline cross section to a cross section of the reactor, in which a flow rectifier with at least one inner first guide element and at least one outer second guide element is disposed in the inlet cone, wherein the inner guide element is a substantially circular, cylindrical pipe and the outer guide element runs substantially parallel to the outer wall and is disposed at a distance from the outer wall.

Abstract: A lead through for fluid tight connection of a mixer assembly to a roof of a fluid housing digestion tank, including a first element presenting a central opening and an axially extending center axis, and a second element presenting a central opening and an axially extending center axis. The extension of the center axis of the second element is adjustable in relation to the extension of the center axis of the first element. The lead through includes a device for making an interface fluid tight located at the interface between the first element and the second element. Positioning members are arranged to determine the mutual positions of the first element and the second element in the axial direction, and some of the positioning members are constituted by mutually independent adjustment members, which are located on the opposite side of the device for making an interface fluid tight.

Abstract: A water delivery system is provided, comprising at least one faucet device with a cold water faucet part and a hot water faucet part, a cold water line to the at least one faucet device, a tankless heater device for heating water, a hot water line having a first portion running from an outlet of the tankless heater device to the at least one faucet device and having a second portion running from the at least one faucet device to an inlet of the tankless heater device, and a circulatory pump arranged in the second portion of the hot water line, wherein the circulatory pump has a prefixed first performance level and a prefixed second performance level, wherein the first performance level causes a finite water flow in the hot water line which is below an operation threshold value of the tankless heater device.

Abstract: A device and a method for treating liquids by ozone, including a pipe in which a main flow of the liquid is guided in a flow direction from an inlet to an outlet, an ozone feed point at which ozone can be introduced in gas form into the main flow, and at least two mixers which are located downstream of the ozone feed point, wherein the mixers are arranged at a distance from one another, and wherein at least one reaction zone is formed between the mixers, and wherein the mixers are designed in such a way that they each dissolve only a portion of the ozone in the main flow that has been introduced in gas form.

Abstract: The invention provides apparatus for controlling a search lamp using a wireless transmitter and receiver. The transmitter responds to user inputs by providing a wireless digitally encoded modulation signal containing information indicating at least one operation in a set of operations the search lamp is able to perform. The receiver responds to the wireless digitally encoded modulation signal by providing a control signal for controlling the functionality of the search lamp. The functionality may include, for example, moving the search lamp left/right and/or up/down, a sweep on/off @ +/?45 degrees; X/Y/Z movement (Z when motors run simultaneously); Diagonal sweep (motors run simultaneously); Fast/Slow sweep (50%/100%). The transmitter and receiver are programmable to communicate on a unique 16 bit digital code setting that provides about 65K different code settings, which may also include a random code setting.

Abstract: The invention provides a searchlight device for a recreational boat or other suitable vehicle, vessel or device, featuring a housing for mounting on the recreational boat or other suitable vehicle, vessel or device; a light arranged in the housing, responsive to a light control signal, for projecting bright illuminating light; and a low lux video camera also arranged in the housing, responsive to images in near total darkness, for providing a video camera signal containing information about the images in near total darkness, for allowing close quarter maneuvering in dim light without the need to activate the bright illuminating light so that an operator of the vehicle, vessel or other suitable device may operate safely while maintaining night vision and not impairing the vision of nearby vehicle, vessel or other suitable device.

Abstract: A rechargeable battery operated solar pump kit is provided including a solar panel to provide solar power via an electrical terminal, an inline submersible pump and a control box containing a pipe fitting, a rechargeable battery, an electrical fitting and an on/off switch. The inline submersible pump passes through a rain barrel, having a hose to discharge rainwater from the rain barrel, and a power cord, which is coupled to the rechargeable battery. The pipe fitting couples to the hose to receive the pumped rainwater and to a garden hose to provide the pumped rainwater. The electrical fitting couples the rechargeable battery to the electrical terminal of the solar panel and receives solar power to recharge the rechargeable battery. The on/off switch couples the rechargeable battery and the power cord to turn the inline submersible pump on/off to pump the rainwater.

Abstract: An axial face seal assembly including a seal member which is seated in a carrier, the carrier being non-rotatably connected to a base member but movable axially thereto and biased from the base member by means of a compression spring interposed between the base member and the carrier, the base member being axially and non-rotatably securable to a drive shaft by means of an open ring clamp having first end second ends. The ring clamp is supported on the base member, at least one of said first and second ends being movable relative to the other end in a circumferential direction; and wherein tightening means is rotatably journalled on the base member for adjusting the relative distance between the first and second ends of the ring clamp. A mounting fixture is likewise disclosed and cooperating with the seal assembly in a mounting procedure.

Abstract: The present invention provides a multichannel active sensing and switching device featuring a multiple sensing and switching module configured to respond to operational conditions of different load types and provide load type sensor signals containing information about the operational conditions of the different load types, and also configured to respond to controller signals for controlling the operation of the different load types in two or more different protection configurations; and a controller module configured to respond to the load type sensor signals and provide the controller signals in order to control the operation of the different load types in the two or more different protection configurations. The controller module may be programmable and configured to provide a default circuit breaker configuration and a device specific configuration using active intelligence (AI).