Abstract: Disclosed are filter systems and methods for swimming pools and spas for leaves and other larger debris. The disclosed filtering devices may be provided in-line with a pool cleaning or filtering system such that filtering devices pre-filter the larger debris before the pool cleaning or filtering system filters smaller debris. In some cases, the filtering devices provide an airtight seal that is easy for a user to open or close as desired. In some cases, the disclosed filtering devices include a filter between an inlet and an outlet that are parallel to and offset from a center axis of the filter. In some cases, the filtering devices are configured to generate horizontal cyclonic flow of water.

Abstract: An automatic swimming pool cleaner generally includes a body and one or more turbines. The one or more turbines may be positionable on a bottom portion of the automatic swimming pool cleaner. In certain aspects, each turbine of the one or more turbines includes a plurality of blades arranged around a center axis of the turbine. Each turbine of the one or more turbines may include a non-uniform height, and a maximum height of the plurality of blades is at the center axis.

Abstract: Described are apparatus, systems, and methods of improving cleaning of, e.g., stairs of swimming pools. Automatic swimming pool cleaners (APCs) capable of autonomous movement within water-containing vessels may be utilized to provide enhanced cleaning of sections of the vessels containing stairs or other angled surfaces.

Abstract: A docking system for an automatic swimming pool cleaner includes a dock and an underwater-facing camera. The underwater-facing camera ay be provided to monitor the automatic swimming pool cleaner underwater. A method of controlling an automatic swimming pool cleaner may include using information obtained from a camera on a dock of a docking system to control the automatic swimming pool cleaner.

Abstract: Described are apparatus, systems, and methods of improving cleaning of, e.g., stairs of swimming pools. Automatic swimming pool cleaners (APCs) capable of autonomous movement within water-containing vessels may be utilized to provide enhanced cleaning of sections of the vessels containing stairs or other angled surfaces.

Abstract: Described are apparatus, systems, and methods of improving cleaning of, e.g., stairs of swimming pools. Automatic swimming pool cleaners (APCs) capable of autonomous movement within water-containing vessels may be utilized to provide enhanced cleaning of sections of the vessels containing stairs or other angled surfaces.

Abstract: Skimming devices may use pressurized water from, for example, a return line of a swimming pool or spa. The devices may be adjustable vertically and levelled relative to an upper water surface (waterline) of a pool. They additionally may create “blades” of debris-laden pool water entering their floating heads so as to move debris smoothly and efficiently over wings or foils into associated filters.

Abstract: Motor housings and shrouds are detailed. Inlets of the shrouds may be included on any or all portions of their peripheries (as well as on rears of shrouds if desired). Air hence need not necessarily be drawn wholly linearly into the shrouds, permitting the shrouds to abut, or at least be closely proximate, other objects without materially diminishing air flow into the shrouds. Moreover, plates within the shrouds may be positioned so as to create torturous paths through which the air must travel. Channeling air through these torturous paths helps reduce noise as the air moves to the fans.

Abstract: Automatic swimming pool cleaners and components thereof are described. The cleaners may provide dual filtration of debris suspended in water of pools as well as a fluid path allowing some water to by-pass one of the two filters. They also may include any of all components such as multi-section inlet tubes, Venturi jets, nozzles exhausting water onto rotatable vanes, brushes, downforce turbines, and mechanisms for adjusting water flow through thrust jets or sweep tails.

Abstract: Skimming devices may use pressurized water from, for example, a return line of a swimming pool or spa. The devices may be adjustable vertically and levelled relative to an upper water surface (waterline) of a pool. They additionally may create “blades” of debris-laden pool water entering their floating heads so as to move debris smoothly and efficiently over wings or foils into associated filters.

Abstract: Described are apparatus, systems, and methods of improving cleaning of, e.g., stairs of swimming pools. Automatic swimming pool cleaners (APCs) capable of autonomous movement within water-containing vessels may be utilized to provide enhanced cleaning of sections of the vessels containing stairs or other angled surfaces.

Abstract: Automatic swimming pool cleaners (APCs) are detailed herein. The APCs may include features designed to avoid, or reduce adverse effects of, clogging by debris. They also may include easily-removable fluid-powered motors should clogging nevertheless occur. The APCs may also include improved motive assemblies that help the APCs move about the swimming pool or other body of water without interruption.

Abstract: Automatic swimming pool cleaners and components thereof are described. The cleaners may provide dual filtration of debris suspended in water of pools as well as a fluid path allowing some water to by-pass one of the two filters. They also may include any of all components such as multi-section inlet tubes, Venturi jets, nozzles exhausting water onto rotatable vanes, brushes, downforce turbines, and mechanisms for adjusting water flow through thrust jets or sweep tails.

Abstract: Automatic swimming pool cleaners and components thereof are described. The cleaners may provide dual filtration of debris suspended in water of pools as well as a fluid path allowing some water to by-pass one of the two filters. They also may include any of all components such as multi-section inlet tubes, Venturi jets, nozzles exhausting water onto rotatable vanes, brushes, downforce turbines, and mechanisms for adjusting water flow through thrust jets or sweep tails.

Abstract: Apparatus, systems, and methods for connecting components are described. The components may be drive controls and motors of pumps of water-circulation systems needing to be connected both mechanically and electrically. The connectors may be robust and have alignment, sealing, and keying capabilities.

Abstract: Automatic swimming pool cleaners and components thereof are described. The cleaners may provide dual filtration of debris suspended in water of pools as well as a fluid path allowing some water to by-pass one of the two filters. They also may include any of all components such as multi-section inlet tubes, Venturi jets, nozzles exhausting water onto rotatable vanes, brushes, downforce turbines, and mechanisms for adjusting water flow through thrust jets or sweep tails.

Abstract: Motor housings and shrouds are detailed. Inlets of the shrouds may be included on any or all portions of their peripheries (as well as on rears of shrouds if desired). Air hence need not necessarily be drawn wholly linearly into the shrouds, permitting the shrouds to abut, or at least be closely proximate, other objects without materially diminishing air flow into the shrouds. Moreover, plates within the shrouds may be positioned so as to create torturous paths through which the air must travel. Channeling air through these torturous paths helps reduce noise as the air moves to the fans.

Abstract: Described are cleaning devices intended for immersion in water of swimming pools and spas. The devices beneficially may be pressure-side cleaners attached indirectly to outlets of water-circulation pumps. The supply of pressurized water travelling from a pump to such a device may be employed for various purposes, including directing debris-laden water to or near tops of debris collection chambers. The water exiting nozzles associated with the devices may push, rather than pull, the debris-laden water toward the collection chambers. Some nozzles may be oriented approximately parallel to a to-be-cleaned pool surface, and curved tubes may be employed to direct water and debris flow to perimeters of the cleaners.

Abstract: Pump designs are detailed. A pump may include a fan having one or more pass-through holes allowing ambient air to be drawn through a fan near a motor shaft bearing for cooling purposes. Alternatively or additionally, a pump may include modular stages to facilitate servicing and repair.

Abstract: Described are cleaning devices intended for immersion in water of swimming pools and spas. The devices beneficially may be pressure-side cleaners attached indirectly to outlets of water-circulation pumps. The supply of pressurized water travelling from a pump to such a device may be employed for various purposes, including directing debris-laden water to or near tops of debris collection chambers. The water exiting nozzles associated with the devices may push, rather than pull, the debris-laden water toward the collection chambers. Some nozzles may be oriented approximately parallel to a to-be-cleaned pool surface, and curved tubes may be employed to direct water and debris flow to perimeters of the cleaners.