Abstract: A system for adjusting surface level, comprising a moveable surface; a mechanism adapted to be disposed between and coupled to the moveable surface and a fixed surface; a force transfer mechanism configured to be coupled to the mechanism for displacement of the moveable surface relative to the fixed surface; and a plurality of stopping rods, disposed between the moveable surface and the fixed surface, which are operative for restricting an axial movement of the moveable surface relative to the fixed surface in a first mode of operation and for restricting a radial movement of the moveable surface relative to the fixed surface in a second mode of operation.

Abstract: Mounting systems for waste disposers such as food waste disposers, waste disposers employing such systems, and related methods, a mounting system includes a flange component having first and second ends and a tubular structure extending along a first axis between the ends. The mounting system also includes a mounting flange component having an inner edge defining at least in part an orifice extending through the mounting flange component and sized so that a first portion of the tubular structure including the second end can pass partly into or entirely through the orifice. When lugs of the mounting flange component are aligned with protrusions of the tubular structure and the tubular structure is positioned so that tips of the lugs are positioned between the protrusions and the first end, then the mounting flange component is secured in relation to the first flange component.

Abstract: A lifesaving system for a swimming pool includes a plurality of lifesaving modules. Each module includes a platform and is stowable in a standby configuration under a surface of water in the pool. The module is deployable to rise to a surface of water in the pool beneath a swimmer in distress so as to support the swimmer on the platform.

Abstract: A diving pool includes a first tiered section extending to a first depth of the diving pool, a second tiered section extending to a second depth of the diving pool that is deeper than the first depth, and a cover. The cover can be releasably positioned within the diving pool at a depth of the diving pool to isolate a shallower portion of the diving pool above the cover at the depth from a deeper portion of the diving pool below the cover at the depth.

Abstract: A swimming pool including a movable bottom, side walls and a movable platform defining the bathing volume. The platform, actuated by a system, passes from a submerged position to a raised position in the air to close the bathing volume. A peripheral flow conduit, arranged at the periphery of the bathing volume and the side walls, has an upper mouth system and a lower mouth system communicating with the bathing volume. The pool has a main water tank containing water from the overflow, a secondary tank for collecting the overflow, a pump system linking buffer tanks and continuously supplying the overflow, and a water collection system. The water collection system extends the periphery of the bathing volume and passes from a low position when the platform is static to a high position when the platform moves, providing a peripheral anti-overflow barrier and constituting the upper mouth system.

Abstract: A mobile-bottom device for swimming pools or hollow cavities comprising a frame (1) fixed to a meshed framework (2) comprising first profile sections (20) running in a first direction and belonging to at least one first plane P1 referred to as the upper plane, and second profile sections (21) superposed on the first profile sections (20) and running in a second direction preferably perpendicular to the first direction and belonging to a second plane P2 referred to as the lower plane and different from the first plane P1, means for raising and lowering the frame and the framework, means for motorizing the raising and lowering means.

Abstract: The invention relates to an adjustable swimming pool floor system (40). In addition, the invention relates to a swimming pool (5) comprising such an adjustable pool floor system. Furthermore, the invention relates to a method for installing the hydraulic system (1) in a swimming pool. The invention also relates to a hydraulic system for use in an adjustable swimming pool floor system.

Abstract: A method for assembling a rapid elevation floor system in a pool, the method comprising the stages of: assembling a raisable floor inside said pool and adding sensors to said raisable floor, and connecting said raisable floor platform to auxiliary units. The method further comprises laying flooring tiles on said raisable floor and sinking said raisable floor to a bottom of said pool.

Abstract: A moving floor (1) which is to be installed in a basin (3) of a swimming pool (2) in order to be placed either in a lower position in which swimming is possible, or in an upper position in which it covers the basin (3). The moving floor is provided with compartments (7, 8, 9) which on the one hand allow the moving floor (1) to be made to float horizontally on the water (6) when the compartments (7, 8, 9) are filled with air, and on the other hand allow the moving floor (1) to be made to sink when the compartments (7, 8, 9) are filled with water in order to place it at the bottom of the basin. Controlled elements for managing the quantity of air and water present in the compartments (7, 8, 9) are also provided.

Abstract: A variable depth swimming pool/spa can comprise a movable deck and a bottom. The movable deck can be movable relative to the bottom of a variable depth swimming pool/spa to provide for a variable depth of the portion of pool/spa that is accessible to a pool/spa user. The movable deck can be connected to the bottom of the variable depth swimming pool/spa via one or several legs. The one or several legs can be rotatingly connected to the movable deck and can be slidingly connected to the bottom of the swimming pool/spa. The rotational displacement of the legs can result in the vertical displacement of the movable deck. The legs can be connected to synchronizing arms that can interact with a synchronizing drive to coordinate the movement of a first leg with a second leg.

Abstract: A system for adjusting surface level, including a moveable surface, at least two structures adapted to be disposed between and coupled to the moveable surface and a fixed surface, a single force transfer mechanism configured to be coupled to the at least one of the at least two structures for displacement of the moveable surface relative to the fixed surface.

Abstract: The embodiments herein provide a security system for a water body. The system includes a reticular structure arranged on a ground level, an electromotor, an electro hydraulic circuit with a plurality of hydraulic components placed in the water body, a central controlling unit, and a remote controller. A pressing operation of the remote controller transfers a command to the central controlling unit which in turn sends a control command to the plurality of hydraulic components to arrange the reticular structure at a required height in the water body. The reticular structure is moved vertically in a direction along the depth/height of the water body to a desired height based on the requirements. A wristband with a sensor worn by a swimmer measures the pulse rate and outputs an alarm to control unit to move the reticular structure to safe level, when the measured pulse rate exceeds a threshold value.

Abstract: A swimming pool safety system, and method, uses a preservation mechanism that lifts a human-sized object from within a swimming pool to a top surface of the swimming pool. An underwater detection array detects the human-sized object within the swimming pool and generates a detection data. A preservation controller actuates the preservation mechanism in response to an automatic actuation signal that was generated based on the detection data so as to actuate the preservation mechanism to lift the human-sized object above the top surface of the swimming pool.

Abstract: A portable, submersible table and bench assembly suitable for use on land as well as in bodies of water having sloped or uneven bottom surfaces. The table and bench assembly includes a pair of benches and a central table mounted on a support frame that includes a plurality of hollow, adjustable support members or legs that are slidably received within the support frame. The hollow, adjustable support members extend downwards for contact with the ground or a sloped bottom swimming pool. The support frame includes a plurality of spaced apart perforations on the surface of downwardly extending risers that allow the entry and drainage of water, as well as adjustment of the height of the adjustable support members or legs. In addition to being light and portable, the hollow structure permits water to enter and drain through perforations and accordingly resist buoyancy when the table is immersed in water.

Abstract: A mobile floor device for a swimming pool including a stationary floor, standing lateral walls, a mobile floor and a mechanism for pulling said mobile floor. The pulling mechanism includes cables and drivers driving the cables in one direction or in a reverse direction. Each cable having a first end connected to the mobile floor and a second end connected to the swimming pool. For each cable, at least one driver drives a maximum of one cable. The drivers are attached either to the swimming pool or to the mobile floor with the lengths of the cables between the drivers and the mobile floor and the swimming pool, respectively, being substantially equal to one another.

Abstract: A movable floor system for a swimming pool, including a structural platform comprising a horizontal frame designed to support a finished covering, the platform being designed to be installed in a cavity acting as the swimming pool. The system includes a lifting mechanism, a plurality of parallel crossmembers fixed within a layer formed by the frame of the platform; and a plurality of carrier pulleys located along outer lateral edges of the frame, the carrier pulleys designed to accommodate a platform-driving cable. The lifting mechanism further includes: a driver; a shaft; first and second drive pulleys situated at the ends of the shaft designed to take at least one platform-driving cable; an attachment to secure at least one cable in the cavity; and means for actuating the drive shaft.

Abstract: A rapid elevation floor system for a pool at least partially filled with pool water, including a raisable floor for disposing over the bottom of the pool. The raisable floor is combined of a plurality of modular floor elements, at least some of which include a ballasting receptacle. The ballasting receptacle is adapted to receive and discharge a volume of a flotation fluid lighter than the pool water, enabling the pool water to occupy any part of the volume when unoccupied by the flotation fluid. When the raisable floor is disposed beneath the surface of the pool water, the amount of the flotation fluid contained in the raisable floor is adjusted to render the specific weight of the raisable floor as equal to, or as slightly greater than the specific weight of the pool water, such that pumping of the flotation fluid into the ballasting receptacle(s) urges a rapid elevation of the raisable floor.

Abstract: A within-ground portable pool, particularly well suited as a sand pool in a beach environment is disclosed. Importantly, the portable pool has a bendable structure wherein children can develop creative skills by bending the structure into various shapes and designs. Additionally, multiple pools can be joined together optionally according to the imagination of a user. A novel sun shade design is also provided to the sand pool. More features are also included for stability and entertainment.

Abstract: A lifting module for the mobile rigid bottom of a swimming pool, including: a) a driving housing controlling the immersion and lifting movements at a single point of the mobile bottom; b) at least one peripheral guiding member of the mobile bottom; c) at least one transmission member connected to the driving housing on the one hand and to the single point of the mobile bottom on the other hand, the lifting module being totally self-contained in that it is free of any mechanical link with any other lifting apparatus acting at another lifting point of the mobile bottom.

Abstract: A movable floor system for a swimming pool, including a structural platform comprising a horizontal frame designed to support a finished covering, the platform being designed to be installed in a cavity acting as the swimming pool. The system includes a lifting mechanism, a plurality of parallel crossmembers fixed within a layer formed by the frame of the platform; and a plurality of carrier pulleys located along outer lateral edges of the frame, the carrier pulleys designed to accommodate a platform-driving cable. The lifting mechanism further includes: a driver; a shaft; first and second drive pulleys situated at the ends of the shaft designed to take at least one platform-driving cable; an attachment to secure at least one cable in the cavity; and means for actuating the drive shaft.

Abstract: A prefabricated pad for a pool and its associated method of installation under the liner of an above-ground pool. The prefabricated pad is interposed between the ground surface and the pool liner, wherein the prefabricated pad cushions the pool liner, reduces contact stresses against the pool liner and prevents the pool liner from being punctured by any object present below the pool. The prefabricated pad also supports the pool liner as the pool liner turns from the vertical walls of the pool to the flat bottom of the pool.

Abstract: A vertically moveable swimming pool floor apparatus includes a rigid planar platform configured to fit the planform area of a swimming pool, and a plurality of hydraulically powered hoists coupled to the platform to raise and lower the platform. The hoists are controlled by a control system operated by the user. The hoists controllably actuate the platform into and out of a swimming pool cavity, such that effective depth of the swimming pool is variable in a continuous range. The platform is equipped with depth indicators to allow users to observe the effective depth of the pool.

Abstract: A swimming pool rescue apparatus includes a safety pool bottom substrate, having a periphery made of a buoyant material and at least one non-peripheral portion is buoyant. The buoyant material is urged into a fixed position at a bottom of the pool by a retaining member. A lifting mechanism raises and lowers the safety pool bottom substrate. The lifting mechanism communicates with a detection signal device detecting the presence of a person under water in the pool for a predetermined period of time. The electronic signal device has a trigger engaging the lifting mechanism to release the buoyant material from a fixed position at the bottom of the pool to a further position at an upper area above the water level of the pool.

Abstract: An insertable platform for modifying the depth of a pool includes a substantially planar member having an upper surface and a lower surface; and a support member associated with the lower surface for supporting the substantially planar member at a desired spacing above a floor of the pool.

Abstract: AN AQUATIC raisable floor apparatus includes a platform and a buoyancy chamber in the platform with a top and a bottom. The chamber is closed on the top and open to the pool near the bottom. There is an air supply connected to the chamber. A valve is capable of venting the chamber to atmosphere. The platform is raised by filling the chamber with air from the air supply and the platform is lowered by venting air from the chamber to atmosphere through the vent. There is also a guide mechanism for guiding the platform as the platform is raised or lowered. The guide mechanism includes vertically extending racks. Rotatable pinions engage the racks.

Abstract: A system (10) for raising and lowering a swimming pool liner (12) includes a plate (22) used to define a spill way (24) for providing fluid communication between an outside surface of the liner and an inside surface (16) of the pool (14). The liner is detached from the surface of the pool in the region behind the plate and reattached along an upper edge (28) of the plate. Conduit (30), having length (30′), extends along back face (32) of plate (22) and below the upper edge (28). Holes (34) cut in the plate provide communication with length (30′). Conduit (36) extends across the back face (32) near its lower edge (38) to provide air to the spill way (24). The length (36′) of conduit (36) is provided with a number of holes (40) for admitting air into the spill way. In order to lift the liner, air is directed through conduit (30) to the outside surface (26) of the liner.

Abstract: An automatically inflatable mattress adapted to rest on a bottom of a swimming pool in its deflated position and inflates using compressed air pumped through air inflation lines that are coiled around spring loaded hose reels. A microprocessor actuates a compressed air pump as a person interrupts a signal pattern produced by microwave sensors disposed around the perimeter of the swimming pool. The mattress uniformly rises up to the surface of the swimming pool to catch a distressed individual whose motion is detected after falling into the water.

Abstract: A height adjustable false bottom for multi-purpose pools. The apparatus has a device for adjusting the height of the false bottom, where a plurality of supporting legs, which are pivotable and have a variable length, are used for the height adjustment. The supporting legs are preferably formed as rotatable spindle drives.

Abstract: An auxiliary children's pool apparatus 10 for providing an adjustable height support enclosure above the bottom 101 of a conventional above ground swimming pool construction 100. The apparatus 10 includes a framework unit 11, a floor unit 12, an enclosure unit 13, and a netting unit 14. The framework unit 11 is adjustable to vary the height of the floor unit 12 relative to the bottom 101 of the pool 100.

Abstract: An automatic rescue device employing a safety net usable in large in-ground swimming pools operable without human assistance can lift a net rapidly and effectively to the surface and is suitable to handle significant weight and rescue several people in a stable and reliable manner. It is comprised of a safety net coextensive with the perimeter of the pool submerged in the water when inactive having metal arms fastened to corners thereof, hollow cylinders running from the pool bottom to just above the top of the water surface standing at corners of the pool that house collapsible rods. In certain modes, minimal action by a human, namely operation of a remote activator, is necessary. When the swimming pool is not in use, an infra red signalling system is activated causing an electrical signal to travel through wires to activate motors at the bottom of each cylinder.

Abstract: An adjustable flooring structure for a pool includes a platform and three groups of hydraulic cylinders. The first group of cylinders is vertically mounted to the platform and is extendable between a minimum first length and a maximum first length for lifting the pool from a minimum height to an intermediate height. The second group of cylinders is pivotally mounted to the platform and movable between a horizontal disposition and a vertical disposition for lifting of the platform. The second group of cylinders is extendable between a minimum second length and a maximum second length for lifting the platform from the intermediate height to the maximum height when the second group of cylinders are vertically disposed. The third group of cylinders are pivotally mounted to the platform and are pivotally mounted to the second group of cylinders for moving the second group of cylinders between the horizontal disposition and the vertical disposition when the platform is at the intermediate height.

Abstract: This device provides a substantially flat, rigid sheet for converting a hot tub to a wading pool. The sheet is designed to set on the seat of a hot tub and cover the foot well section of the hot tub. The sheet is provided with a plurality of small holes to allow water and bubble circulation. The device includes hand holds to facilitate lifting the sheet for placement of the sheet in the hot tub and removal of the sheet from the hot tub.

Abstract: A cover arrangement together with a displacement mechanism for a swimming pool having a basin (1). The displacement mechanism moves the cover vertically inside the basin (1) of the swimming pool between two extreme positions. One position is a bottom (7) and the other position is a surface of the pool. The cover arrangement comprises sealing shutters which are movably supported on a support structure (9) in such a way that they can occupy an open position and a closed position. The support structure (9) is provided with plurality of partitions, each of which can be sealed by at least one shutter. The displacement mechanism is also suitable to position and maintain the supporting structure (9) in at least a third position situated between the extreme positions.

Abstract: Hydrotherapic rehabilitative device characterized in that it comprises an individual rehabilitation horizontal tub (6), whose bottom is partially formed by a vertically movable treadmill platform (9) and whose walls extend downwardly beyond said bottom to delimit a space (7) containing a pool of water and receiving a patient standing on said treadmill platform, when lowered

Abstract: An apparatus to include a flexible protective web mounted in a first position to a bottom surface of a swimming pool and in a second position raised adjacent an upper edge of a perimeter side of the swimming pool. The apparatus includes a primary control tube to include a housing. The housing formed with a plurality of shaft members, with the first shaft arranged to effect rotation relative to the housing and effect a winding of a primary control cable, with secondary control cables directed from the housing to secondary control tubes to effect simultaneous lifting of the web to the second position.

Abstract: A bathing unit which includes a vertically adjustable bottom portion and fluid receiving channels. The lift mechanism includes a spring and manual spring tension adjuster. The user is able to adjust the spring so that the platform moves when the weight of the user plus the weight of the water in the channels is greater or less than the preset spring force.

Abstract: The flooring apparatus for pool or the like comprises an elevating floor formed almost identically with an opening area of a pool or the like, an elevator for moving the elevating floor vertically, and a means for holding the elevating floor at a desired level position, the elevating floor can be set securely and solidly at a desired level position on a small power by sealing the elevating floor hermetically with air for a buoyancy coming almost zero underwater, further one pool can be used for multiple purpose of adults' use, children's use, infants' use and others, thus providing a flooring apparatus for pool or the like which is simple in construction and moderate in cost.

Abstract: This hydrotherapy machine has a top-opening tank with a floor spaced above the tank bottom. The periphery of the floor is spaced from the tank wall. Liquid under pressure is admitted to the space between the floor and the tank bottom, and proceeds upwardly through the gap between the tank wall and the floor. The circulation continues along the tank wall, and downward to a central outlet traversing the floor and the tank bottom. An inward radial flow at the top completes the primary circulation pattern.

Abstract: An improved floor-level adjusting device for a pool is particularly designed to be incorporated in an existing pool at low cost without the destruction thereof. The floor-level adjusting device for a pool has a movable floor disposed in a pool for vertical movement, and a plurality of lifting mechanisms disposed on and along the side walls of the pool and connected with the movable floor for moving the movable floor in the vertical direction so that the depth of water in the pool above the movable floor can be adjusted in an appropriate manner.

Abstract: An apparatus for exercising and massaging a human, a horse or other animal comprises a tank containing a pool of water, a plurality of water massage jets in the sidewalls of the tank, a cage for retaining the person, horse or animal, a treadmill positioned at the bottom of the case, so that the horse runs on the treadmill while at the same time being treated with a water turbulence massage from the water jet nozzles, and a scissor-like lift device for raising and lowering the treadmill in the pool.

Abstract: The splash or landing pool of a water slide has an entry zone of substantially increased depth relative to conventional splash pools and a shallow exit zone leading from the entry zone. The entry zone is provided with a false floor at a depth such that a child can walk thereacross, the false floor being a close mesh net which can safely decelerate an adult who has improperly entered the pool from the slide.

Abstract: A recreational water craft useable as a vehicle and as a swimming facility has first and second floatable components, the first having a deck supported by a pair of compartmented pontoons. The compartments have water and air inlet and discharge facilities and are adapted for flooding and blowing by connection with a control system that includes a pressurized air source and valves for pressurizing and bleeding air from the compartments so as to move the first component between a first position with the deck above water and a second position with the deck submerged. The second floatable component has a main floatable section with an annular pontoon that rests on the deck during the vehicle mode of use as when the first component is at the first position. The pontoon has a vertical opening and which surrounds the deck passenger area. A floatable aft section is pivotally connected to the main section and provides a mounting place for an outboard motor.

Abstract: An apparatus that permits fluid-isolation bathing whereby a bather can bathe in a relatively small volume of bathing fluid or liquid selected for special properties (e.g. cleansing or soaking). The bather is isolated from a larger surrounding volume of water by means of a thin-walled bag. The bather enters and exits the apparatus by means of a hydraulically actuated pistion-like platform that is fitted to a cylindrical bathing container filled with water. The hydraulic circulation of the water between top and bottom of the container is accomplished by a bather-controlled pump and valve mechanism. The invention provides sanitary bathing through the fluid-isolation of disposable thin-walled bathing bags. It also permits bathing the entire body surface in a small volume of bathing fluids that may be realatively costly.

Abstract: An improved floor-level adjusting device for a pool is particularly designed to be incorporated in an existing pool at low cost without the destruction thereof. The floor-level adjusting device for a pool has a movable floor disposed in a pool for vertical movement, and a plurality of lifting mechanisms disposed on and along the side walls of the pool and connected with the movable floor for moving the movable floor in the vertical direction so that the depth of water in the pool above the movable floor can be adjusted in an appropriate manner.

Abstract: A movable, submersible, transversely extending bulkhead for use in a swimming pool. The bulkhead has an elongated hollow body with top, bottom, end and side walls and a pair of spaced air chambers positioned toward each of its ends. Positioned between and substantially equidistant from each of the air chambers is at least one core of buoyant material. The bulkhead also utilizes means for selectively controlling the quantity of air and water within the chambers for regulating the buoyancy of the bulkhead. The bulkhead may be moved along the length of a swimming pool through increasing the buoyancy of the bulkhead by displacing the water contained in the chambers, shifting the bulkhead to a new longitudinally spaced position within the pool, and decreasing the buoyancy of the bulkhead by allowing water to reenter the chambers.

Abstract: A bathtub assembly that can be raised and lowered has a bottom and a lift plate with scissors-like guide frames positioned between them, which said frames guide the lift plate vertically. Two collapsible hoses or bellows, made of material that bends but does not stretch, are sealed at the ends, one end being attached to the lift plate and the other to the bottom. The hoses or bellows 20, are connected by means of connection hoses and a manual valve to the house water supply line.

Abstract: A liquid reservoir, for example a swimming bath, a test tank or an aquaculture tank, comprises an open-topped container having at least one side wall, a first floor fixed relative to the side wall(s) and a second floor above the first floor which is able to move upwardly and downwardly relative to the side wall(s) in order to vary the height and/or inclination of the second floor in relation to the first floor. The reservoir comprises means for varying the specific gravity of the second floor between a value above and a value below the specific gravity of the liquid of the reservoir. Passageways between the side edge of the second floor and the side wall(s) of the container and/or through the second floor enable liquid to flow between the space between the two floors and another space above the second floor when the height of the second floor is varied.

Abstract: A float controlled valve syphons water out of a swimming pool cover. The syphon valve includes co-operable male and female valve members disposed for mutually relative movement to bring them into and out of mutual engagement to thereby close and open flow communication through a syphon discharge passage formed in the male member. A float body is coupled to one of the said members for effecting the engagement and disengagement in response to the level of the water in the swimming pool cover. The male valve member is tapered at the forward end to facilitate engagement with a central recess in the female member. The female member is formed of more yielding material than the male member and has a thin walled portion receiving the male member and of sufficient flexibility to envelop dirt particles at the male-female member seal.

Abstract: An automatic cover for a liquid storage container and a method of control corresponding thereto including a cover disposed within the container, a membrane connected to a portion of the storage container and connected along a peripheral portion of the membrane to the cover, the membrane and the cover separating the storage container into a liquid storage compartment and a liquid balancing compartment, a pressurized mechanism connected to the peripheral portion of the membrane for controlling the shape and dimension of the cover and a member for feeding balancing liquid to and for withdrawing balancing liquid from the liquid balancing compartment in such a manner that hydrostatic pressure of the storage container is maintained within any predetermined range.

Abstract: Pools of all peripheral shapes of either above or below ground construction with single slope or flat bottoms when not in use may be equipped with a rigid structurally safe traversible completely dry surface deck or decks for domestic functions and to simultaneously insulate the surface of the water with which it is in contact but when pool is in use such a deck or decks are to be readily set at any depth in the pool until it or they become finally a false bottom by means of control by external low pressure hydraulic cylinders operated from the pool circulating system per medium of a single readily operable but safety positioned three-way valve.