Including Water Inlet Or Outlet Means Patents (Class 4/507)
  • Patent number: 5642534
    Abstract: The weir gate includes a pair of spaced juxtaposed guides that are disposed vertically on either side of an opening between the interior of a spa and a filtration cavity. A lower gate is fixed to and spans the guides in a generally vertical plane. A floating gate is disposed between the guides, and can be placed in an upper position to regulate the flow of surface water into the filtration cavity and in a lower recessed position adjacent the lower gate to provide access to the filter cavity. An upper latch mechanism holds the floating gate in the upper position so that it pivots in a plane generally orthogonal to the lower gate and its upper edge floats near the surface of the water in the spa. A lower latch mechanism holds the floating gate in the lower position adjacent the lower gate so that a user can access the filters without having to hold the floating gate down.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: July 1, 1997
    Inventors: Manuel Sanchez, Michael S. Deans, Wilbur R. Holmes, Susan L. Holmes
  • Patent number: 5608927
    Abstract: A spout which can effect a waterfall in the form of a sheet of water in conjunction with the recirculation of bathing water is described. An accumulator with a baffle structure receives the recirculating bathing water to place it in a quiescent state before passage from the spout. In a preferred embodiment, there is a whirlpool basin which receives bathing water from the spout as well as body spray nozzles which also receive recirculating water from the basin.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: March 11, 1997
    Assignee: Kohler Co.
    Inventors: Scott R. Lowry, Thomas A. Bonnell, Robert C. Giese
  • Patent number: 5606750
    Abstract: A weir flap for use in a swimming pool skimmer opening is disclosed. The weir flap includes a buoyant body that is pivotally mounted at a lower end in the opening. The body includes a through slot having an inlet opening in a front face of the body and an outlet opening in either a rear face or an upper edge of the body.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: March 4, 1997
    Assignee: Prelude Pool Products C C
    Inventor: Richard V. Vos
  • Patent number: 5604939
    Abstract: A swimming pool skimmer closure having a sealing face plate positioned across the open end of the skimmer inlet and held thereon by a bolt extending through the center of the face plate and through a transversely extending brace member abutting interior, transversely spaced shoulders integral with the skimmer housing. The face plate is tightened into sealing engagement against the skimmer inlet by a nut threaded onto the end of the bolt and abutting the brace member so that the skimmer can be drained without draining the pool water during the winterization of the pool.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: February 25, 1997
    Inventor: Robert E. Widener
  • Patent number: 5581826
    Abstract: An automatic flow shift valve for use with swimming pool cleaning systems including a pool skimmer system for removing floating debris from the surface of the pool and an underwater pool cleaner system for removing debris from the floor of the pool, both of such systems operating through water suction by the periodic "on" and "off" cyclic operation of a suction pump. The valve is mounted over a flow orifice in a cover plate which is removably secured across the top of the well and removable debris basket of the skimmer and the underwater pool cleaner is connected by a hose to a second opening in the cover plate. The valve includes a central, fixed-position shift cylinder enclosing upper and lower spaced, but interconnected, pistons which are reciprocative within the shift cylinder. The upper piston is spring biased upwardly to open the valve when the pump is "off".
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: December 10, 1996
    Assignee: Philip L. Leslie
    Inventor: Kevin C. Edwards
  • Patent number: 5577274
    Abstract: A winterizing check valve system comprised of a cylindrical check valve having a hollow securement portion and a housing portion. The hollow securement portion is adapted for coupling with an end of a return line for a swimming pool. The housing portion is adapted for securement to the hollow securement portion. The housing portion has a spring therein. The housing portion has a ball coupled therein adjacent to the spring. The housing portion has a plurality of openings therein. The check valve system has an adapter plug having a first end and a second end. The adapter plug has an opening formed therethrough. The first end is adapted to couple with an opposing end of the return line for the swimming pool. The second end is adapted to couple with a compressor.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: November 26, 1996
    Inventors: David E. Plotsky, James W. Glander
  • Patent number: 5555877
    Abstract: A cover for withstanding stormy weather and increasing solar heating of a body of water is disposed over the surface of the water. The cover is more transparent to visible radiation from the sun than to infrared radiation, and is anchored and sealed around its periphery over the surface of the body of water. Means are provided for reducing the pressure between the bottom of the cover and the top of the water to subatmospheric, and for flooding the top surface of the cover with a layer of water, and draining the layer of water from the top of the cover.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: September 17, 1996
    Assignee: George S. Lockwood
    Inventors: George S. Lockwood, John K. Bethune, Andrew W. Lockwood
  • Patent number: 5537696
    Abstract: A self-contained module installed in the side walls or deck of a pool or spa is connected to the pool or spa plumbing system, and converts the turbulent water supply of the system to a laminar sheet of water which free falls into the pool or spa in a manner pleasing in sight and sound. Narrow, elongated spouts prevalent in the prior art have been reduced to a short, compact, economical and structurally stronger emitter owing to the provision of components including an apertured conduit, or "flute", traversing a relatively large manifold chamber open along an element.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: July 23, 1996
    Assignees: Clifford E. Chartier, Sidney Gralicer
    Inventor: Clifford E. Chartier
  • Patent number: 5524399
    Abstract: A molded plastic landscape pond is disclosed that is installed into the ground, the pond having a peripheral rim at or slightly above level. A hollow molded plastic pedestal interlocks onto the bottom surface of the pond, and a molded plastic statue is mounted on top of the pedestal. A submersible pump disposed in the hollow pedestal pumps water to the statue, which generates a stream or spray of water into the pool.
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: June 11, 1996
    Assignee: Avon Plastics, Inc.
    Inventors: Mark T. Reum, Nick J. Demuth
  • Patent number: 5485707
    Abstract: A fitting for relieving hydrostatic pressure under a swimming pool includes a sleeve and an associated removable plug, both of which have planar upper surfaces. Fittings in accordance with the invention are installed in the shallow end of a swimming pool and the plug is manually removed to relieve hydrostatic pressure.
    Type: Grant
    Filed: June 15, 1994
    Date of Patent: January 23, 1996
    Inventor: Kenneth Wilkes
  • Patent number: 5408706
    Abstract: A fitting assembly for use in swimming pools, spas, and the like with vinyl liners, comprises a fitting member which is mounted in an opening in the wall of the pool, either flush with the pool wall or with a flange extending over the interior of the pool wall near the opening. The fitting member has a recess in it about its periphery. The vinyl liner then is placed over the fitting member; and a clamp member, which has a predetermined thickness not greater than the depth of the recess, is secured in the recess of the fitting member over the vinyl liner to clamp the vinyl liner between the clamp and the recess of the fitting member. This provides a flush mount or nearly flush mount of the fitting member with the vinyl liner of the pool.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: April 25, 1995
    Assignee: Caretaker Systems, Inc.
    Inventor: Steven R. Barnes
  • Patent number: 5392471
    Abstract: A closure device covers the inlet portal of a swimming pool weir. The closure device has a main opening that is controlled by a weir flap and a secondary opening to accommodate flexible piping leading to a pool cleaner, whereby water can be drawn into the weir simultaneously both through the flexible piping and the main opening. The weir flap has an elongated slot just below the upper edge.
    Type: Grant
    Filed: October 6, 1993
    Date of Patent: February 28, 1995
    Assignee: Prelude Pool Products C C
    Inventor: Richard V. Vos
  • Patent number: 5392472
    Abstract: A pool skimmer apparatus used with a water filtration and recirculation system includes an outlet nozzle assembly and a scoop assembly. The outlet nozzle assembly is mounted to an inlet in the sidewall of a pool of water and operable for directing a flow of the water and debris floating on the surface of the water along an endless annular path extending substantially tangentially along the sidewall and the periphery of the pool of water. The scoop assembly is mounted to the outlet in the sidewall of the pool to project outwardly from the sidewall for intercepting and deflecting at least a portion of the water and debris carried by the water from the endless annular path of flow and into the outlet of the pool to thereby assist in skimming off portions of the debris floating on the surface of the pool of water.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: February 28, 1995
    Inventor: Bernard R. Maxfield
  • Patent number: 5388285
    Abstract: A waterfall for swimming pools has a first configuration as a waterfall and a second configuration as a water spray. Both configurations include a water accumulation box having a spiral water inlet chamber that receives water from the circulating water pump. The spiral configuration removes turbulence from the water so that the waterfall produces a smooth sheet of water. A rotary diverter valve positioned within a nonrotatable cylinder has a hand wheel at its opposite ends so that a pool user may adjust its rotary position. In a first position, a first plenum in the rotary diverter valve aligns with an interconnecting plenum that interconnects the water accumulation box and a water outlet slot to produce the waterfall, and in a second position, a plurality of smaller orifices align with the water outlet slot to produce a water spray effect.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: February 14, 1995
    Inventor: Alfred J. Belniak
  • Patent number: 5379467
    Abstract: A water exercise device made up of a closed loop track, a soaking pool and a channel providing a walking path therebetween. The water depth is generally uniform in depth to provide running and walking exercise but deeper areas may be provided to require swimming in a part of the track and total immersion in the soaking pool. A constant water flow rate is maintained in the track and a temperature gradient may be maintained between the track and the soaking pool to provide temperatures appropriate for different activity levels by a user.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: January 10, 1995
    Inventor: Kenneth Lochbaum
  • Patent number: 5367723
    Abstract: A valve apparatus is provided for regulating the water level in a swimming pool. The apparatus is mounted in a surge pit remote from the pool. The apparatus includes first and second valves movable between open and closed positions for controlling the introduction of water into the surge pit from the main drain line and from a fresh water supply line, respectively. The first and second valves are operatively interconnected and are moved between their open and closed positions by a float member in the surge pit. As the water level in the pool drops below an ideal level wherein a thin layer of water skims over the lip of the gutter system, less water is provided to the surge pit from the gutter drain line, such that the water level in the pit drops, and causing the float member to drop so as to open the first and second valves to allow more water into the surge pit from the main drain line of the pool and from the fresh water supply line.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: November 29, 1994
    Assignee: Pleva Plumbing & Heating, Inc.
    Inventors: John Pleva, Mark G. Pleva
  • Patent number: 5365617
    Abstract: A system for automatically maintaining a desired water level in a swimming pool, includes a float chamber coupled in fluid communication with a suction tube that is coupled between the pool and a pool filter pump. A float carrying a magnetic element is disposed in the float chamber. A magnetic switch is located in a fixed position outside of the float chamber at a level corresponding to the desired water level. The magnetic switch assumes a first state if the pool water level is equal to or higher than the desired water level and assumes a second state if the pool water level is lower than the desired water level. A solenoid valve is connected between a pressurized water source and an intermediate portion of a return tube returning pumped water to the pool. A circuit is coupled to the valve and the magnetic switch to close the valve when the pump is operating, and open the valve when the pump is not running and the magnetic switch is in the second state.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: November 22, 1994
    Assignee: Shasta Industries, Inc.
    Inventor: William C. Tarr
  • Patent number: 5341523
    Abstract: An anti-vortex, flush-mounted floor drain for swimming pools consists of a main housing, which is in the form of a hollow cylinder of a first predetermined diameter A drain opening is located in the top of the hollow cylinder; and the edges of the top of the cylinder are mounted flush with the floor of the swimming pool. A downwardly sloped lip extends from the top edge of the main housing and terminates in a circular opening in the top of the main housing. A solid circular cover is centrally mounted in this opening in the main housing, and is movable toward and away from the opening in the main housing to vary the size of the water inlet from the pool between the edge of the circular cover and the edge of the opening in the main housing. A drain pipe is connected to the main housing for withdrawing water from the housing. The large circular cover at the center of the drain prevents a vortex from occuring as a result of the suction of water passing outwardly through the drain pipe in the drain housing.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: August 30, 1994
    Assignee: Caretaker Systems, Inc.
    Inventor: Steven R. Barnes
  • Patent number: 5309581
    Abstract: Apparatus for producing a waterfall at the edge of a swimming pool, spa or pond, the apparatus including a generally cylindrical reservoir in the water circulation system path, with at least one water discharge metering rod on the axial centerline of the reservoir, configured for directing water in a first direction diametrically opposite an elongate discharge plenum having a second plenum in fluid flow communication therewith for discharging the water into the pool through a sidewall thereof. The apparatus is placed inside the wall on the side of the pool and produces a smooth even sheet of water which is directed away from the side of the pool. The metering rods are constructed for adjusting pressure along the axial length thereof to cause the water pressure inside of the unit to be maintained evenly across its length thereby directing the water out through the throat of the discharge plenum.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: May 10, 1994
    Inventors: Arthur D. Lockwood, Robert G. Lockwood
  • Patent number: 5285538
    Abstract: A sealing assembly is provided for a swimming pool skimmer. The sealing assembly includes a face plate having either one of a laterally extending, raised bead or an outwardly extending flange around the periphery thereof. A flexible cover element includes a peripheral lip for sealably engaging the raised bead or the flange of the face plate. The flexible cover element also includes a planar portion which bears against the flat surface of the face plate around the central opening therein to provide secondary or primary sealing.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: February 15, 1994
    Inventor: Frank J. Hodak
  • Patent number: 5271106
    Abstract: A swimming pool producing surrounding visual effects utilizes large picture generating surfaces adjacent to water-containing surfaces for displaying large images emulative of remote swimming environments. The pool has controllable water currents for in-place swimming or diving in one or more directions. These controlled water currents and the large images are coordinated by a computer for producing a virtual underwater environment in which picture scenes evolve and water-currents flow as a function of swimmer activity. A large apparent swimming area can therefore be produced. For added realism, the pool may include sound-generating devices and parametric weather machines to accurately emulate natural environments and also produce spectacular special effects for the swimming or diving subject and for possible observers thereof.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: December 21, 1993
    Inventors: Richard E. D. McClish, John H. Hollis
  • Patent number: 5268096
    Abstract: A pool drain assembly for a swimming pool having a vinyl liner is disclosed. The assembly includes a drainage receptacle which has an upper edge portion substantially at a level defining the bottom of the swimming pool. The receptacle has a conically shaped seating surface, and the vinyl liner covers the surface. A clamping ring is seated on the seating surface and surrounds a strainer plate which also rests on a lower edge of the seating surface. The upper surfaces of the pool liner, the clamping ring, and the strainer plate are all substantially co-planer.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: December 7, 1993
    Assignee: Essef Corporation
    Inventor: Ronald B. Robol
  • Patent number: 5181283
    Abstract: This invention relates to a collapsible skimmer for use with various currently known above-the-ground pools. The skimmer generally comprises a flexible enclosure which is adapted to be secured to a side wall of the flexible liner of the pool. Disposed within the enclosure is a conventional weir basket having a weir gate attached thereto. The weir basket is operable to provide structural rigidity to the enclosure when disposed therewithin. When the weir basket is removed from the interior of the enclosure, the flexible nature of the enclosure allows it to be collapsed together with the pool liner.
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: January 26, 1993
    Inventor: Hendrik C. Gillebaard
  • Patent number: 5172432
    Abstract: It is important healthwise to oxygenate water in swimming pools in order to kill the mainly anaerobic micro-organisms that may come to grow therein. Chemical agents are nowadays in current use, however, they are expensive, and also they do have damaging effects on the tissues of bathers particularly for the cornea. By mounting an oxygenating device at the water outlet of the recirculating system of the swimming pool, growth of anaerobic organisms is prevented. The present aerating device includes a spherical nozzle with a water flow channel, coupled to the recirculating system main water duct outlet, and a straw, engaging at one end transversely into the water flow channel and escaping at the opposite end above the water line. Ambient air is fed to and dissolved in the recirculated filtered water by the venturi effect generated by the forced circulation of water through the conventional recirculating water filtering system.
    Type: Grant
    Filed: January 17, 1992
    Date of Patent: December 22, 1992
    Inventor: Fernand Beland
  • Patent number: 5108088
    Abstract: Upright sidewall and end panels are bolted to a unitary base component having a treadmill so as to form a composite exercise tank. One end panel has a door of transparent sheet material with specialized hinges and locking mechanism to assure a leakproof fit. Water can be introduced into the tank to a desired level from a storage container, whereupon the treadmill is actuated for exercise or therapy. During use, water in the tank is recirculated through heating, cleaning and sanitizing equipment. After use, the water in the tank is emptied to the storage container and the user exits through the door.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: April 28, 1992
    Assignee: Stewart Medical, Inc.
    Inventors: Jeff Keller, Robert Linton
  • Patent number: 5103508
    Abstract: The water walker is a collapsible exercise device with a waterproof liner supported by an external frame which is made rigid and stable when extended. The height is readily extendable to suit the needs of the user and is adapted to be filled with water to permit the user to perform a variety of exercises in an environment of high resistance and low impact.
    Type: Grant
    Filed: December 12, 1990
    Date of Patent: April 14, 1992
    Inventor: Clarice R. Counts
  • Patent number: 5040250
    Abstract: A retaining ring of an eyeball return fitting of the type used in swimming pools and spas is provided with a releasable or breakaway cover cap. The cap closes the end of the return fitting during construction. This permits the finish work for the cement and plaster stages of the pool construction to be effected without the danger of cement or plaster getting into the fitting during construction. After construction has been completed, the cap is released and drops away, carrying with it any cement or plaster which may have hardened on it during construction.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: August 20, 1991
    Assignee: Caretaker Systems, Inc.
    Inventors: Steven R. Barnes, Lester R. Mathews
  • Patent number: 5016296
    Abstract: A drain and filler attachment for a plastic pool has at one end of a threaded elbow, a threaded nipple intrudes into a plastic pool through X-cuts made in the pool material. The opening is sealed by O-rings and a threaded open cap compressing the O-rings and the pool material against a collar on the threaded elbow. At the other end, the threaded elbow has a coupling and a hose adapter. The hose adapter has a controllable water flow on and off valve at one end and a fitting at the other end for removable attachment to a cooperative fitting on a garden hose.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: May 21, 1991
    Inventor: M. William Beaumont
  • Patent number: 4960514
    Abstract: Apparatus comprising a base member fixed to a swimming pool wall in operative proximity to a skimmer inlet opening and having a permanent magnet plate embedded therein, and a bracket member having an iron plate embedded therein. An elongated deflector, carried by the bracket member, deflects and guides surface-water-borne dirt, leaves, pollen and other debris via circulating pool water into the skimmer inlet opening. The attractive force exerted by the permanent magnet plate towards the iron plate allows adjustable and fixed relative positioning, vertically, laterally and/or radially, of the bracket member with respect to the base member, and, hence, the deflector. The bracket member and deflector have cooperating means to allow lateral angular positioning of the deflector. Appropriate radial positioning of the deflector creates an inherent force component causing subsurface dirt, leaves, pollen and other debris to rise to the surface to be carried into the skimmer inlet opening.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: October 2, 1990
    Inventor: John E. Paskert
  • Patent number: 4954179
    Abstract: The present invention relates to a method of cleaning a pipe system (3) in baths, preferably bath tubs, through which pipe system water and/or air is led into the bathwater (6) of the bath (1) to produce water currents and/or water/air currents (4) and/or air bubbles (5) therein. For effective cleaning, the pipe system (3) is flushed with pure water (31) after a bath has been taken before impurities in said pipe system have/had time to dry. A suitable apparatus for carrying out said method comprises a sensor (49) which is adapted to sense when bathing in the bath (1) has been concluded and to deliver when the bathing has been concluded a signal to a time lag relay (34) which is adapted to open a valve (33) for supply of flushing water (31) to a flushing device (30) for flushing of the pipe system (3) a certain time after the time lag relay (34) has received said signal from the sensor (49).
    Type: Grant
    Filed: April 5, 1989
    Date of Patent: September 4, 1990
    Inventor: Thomas K. Franninge
  • Patent number: 4951326
    Abstract: A retaining ring of an eyeball return fitting of the type used in swimming pools and spas is provided with a releaseable or breakaway cover cap. The cap closes the end of the return fitting during construction. This permits the finish work for the cement and plaster stages of the pool construction to be effected without the danger of cement or plaster getting into the fitting during construction. After construction has been completed, the cap is released and drops away, carrying with it any cement or plaster which may have hardened on it during construction.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: August 28, 1990
    Assignee: Caretaker Systems, Inc.
    Inventors: Steven R. Barnes, Lester R. Mathews
  • Patent number: 4944506
    Abstract: Upright sidewall and end panels are bolted to a unitary base component having a treadmill so as to form a composite exercise tank. One end panel has a door of transparent sheet material with specialized hinges and locking mechanism to assure a leakproof fit. Water can be introduced into the tank to a desired level from a storage container, whereupon the treadmill is actuated for exercise or therapy. During use, water in the tank is recirculated through heating, cleaning and sanitizing equipment. After use, the water in the tank is emptied to the storage container and the user exits through the door.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: July 31, 1990
    Assignee: Edmonds Medical Systems, Inc.
    Inventors: Jeff Keller, Robert Linton
  • Patent number: 4903351
    Abstract: A winterizing kit for swimming pools and more specifically a winterizing faceplate kit for both inground and aboveground swimming pools to greatly reduce the efforts required in the preparation of a swimming pool for active use or for winterizing. A skimmer faceplate is installed on the wall of the swimming pool which provides for both the mounting of a skimmer and a winter cover when required with the present kit eliminating the necessity to drain and refill the pool each time the pool is opened in the spring or closed in the fall. The faceplate includes a gasket arrangement and other components including a faceplate, winterizing cover and necessary mounting bolts and screws to secure the components in position on the swimming pool.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: February 27, 1990
    Inventors: Robert W. Dengel, Robert D. Goelz
  • Patent number: 4881280
    Abstract: A unit for producing a waterfall at the edge of a swimming pool, spa or the like. The unit is mounted in the side of the pool and produces a smooth sheet of water which is directed away from the side of the pool. The unit has a baffle in the interior thereof for directing the water evenly out through the throat of the unit.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: November 21, 1989
    Inventor: Fred C. Lesikar
  • Patent number: 4876001
    Abstract: Apparatus for use with a swimming pool cleaner which includes a housing which defines a chamber, at least one inlet to the chamber and an outlet from the chamber, and a bouyant ball inside the chamber. The apparatus is installed or incorporated in a weir. When suction is cyclically applied to the outlet, and removed, the ball alternately blocks the outlet, and leaves the outlet unblocked. Correspondingly the pool cleaner is operated to clean a submerged surface of a swimming pool, or water is drawn directly from the pool and through a weir, for filtration. A more efficient cleaning of the pool takes place.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: October 24, 1989
    Assignee: Liberty Pool Products S.A.
    Inventor: Carl F. W. Supra
  • Patent number: 4857112
    Abstract: The present invention relates to a method of cleaning a pipe system (3) in baths, preferably bath tubs, through which pipe system water and/or air is led into the bath-water (6) of the bath (1) to produce water currents and/or water/air currents (4) and/or air bubbles (5) therein. For effective cleaning, the pipe system (3) is flushed with pure water (31) after a bath has been taken before impurities in said pipe system have/had time to dry. A suitable apparatus for carrying out said method comprises a sensor (49) which is adapted to sense when bathing in the bath (1) has been concluded and to deliver when the bathing has been concluded a signal to a time lag relay (34) which is adapted to open a valve (33) for supply of flushing water (31) to a flushing device (30) for flushing of the pipe system (3) a certain time after the time lag relay (34) has received said signal from the sensor (49).
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: August 15, 1989
    Inventor: Thomas K. Franninge
  • Patent number: 4843658
    Abstract: A swimming pool of the liner type, with an improved sidewall construction. The sidewall comprises a plurality of concrete slabs cast between spaces defined by inner and outer vertical walls and vertical studs spaced therein. The inner wall is preferably formed of a rigid pressure treated wood material and bears against the pool liner. A continuous upper sill and a lower footer of concrete are cast integrally with the sidewall slabs to join adjacent respective slab portions around the upper and lower perimeters of the pool. The sidewall slabs and the upper sill preferably contain steel reinforcement bars.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: July 4, 1989
    Inventor: Michael L. Hodak
  • Patent number: 4826591
    Abstract: A skimmer is provided for a swimming pool and is constructed in a manner similar to conventional skimmers for a pool so far as the water inlet and filter basket is concerned. Instead of pulling water through the filter basket to the recirculating pump for the pool, however, a water outlet is provided from the bottom of the basket holding cavity of the skimmer; and return water for supply back to the pool is provided by the recirculating pump to an entrainment nozzle device located at the bottom of the filter cavity to pull additional water through the filter cavity to mix with the return water, all of which is supplied to the water outlet located beneath the pool water surface level. Consequently, even if the filter basket should be completely clogged, the water flow through the recirculating system for the pool is not impeded, since the filter basket is not in the primary recirculating path of the pool system.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: May 2, 1989
    Assignee: Caretaker Systems, Inc.
    Inventor: Narciso F. Macia
  • Patent number: 4818389
    Abstract: A skimmer for skimming water from a swimming pool or spa is provided with entraining means for entraining additional water from the pool or spa to thereby increase the flow of water into and out of the skimmer. The entraining means includes two nozzle members which cooperate with each other to jet an entraining stream of water through the skimmer. The skimmer is also provided with isolating means for isolating the entraining stream of water from the rest of the water flowing through the skimmer. The isolating means includes actuating means for selectively actuating and deactuating the isolating means such that the skimmer can be operated at a normal flow rate when the isolating means is actuated and at an increased flow rate when the isolating means is deactuated.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: April 4, 1989
    Assignee: Hayward Industries, Inc.
    Inventors: Samuel Tobias, Thomas Pinelli, Robert M. Messinger, Fred T. Hazlehurst
  • Patent number: 4808081
    Abstract: Apparatus (42, 72) for filling a hose (36) with water (12) and simultaneously for expelling air from the hose while connected to the vacuum side of a pump (20) in preparation for cleaning debris from a swimming pool (10) without loss of the prime in the pump comprises a housing (44, 74) submergeable in the water and having a pair of chambers (46, 48 & 76, 78) respectively having inlets (58, 80) and outlets (64, 86), with the inlets being open to the water and the outlets being coupled respectively to the pump and to the hose. Impellers (54, 100 & 56, 102) respectively in their chambers are coupled together by a shaft (52, 98) in which a first of the impellers (54, 100) is driven by a second of the impellers (56, 102) when water is drawn by the pump past the second of the impellers. In one embodiment, elbow conduit (110) can be slid from a first position where water purges air from the hose to a second position where the hose is used to clean debris from the swimming pool.
    Type: Grant
    Filed: March 5, 1987
    Date of Patent: February 28, 1989
    Assignee: Plastiflex Company International
    Inventor: Richard O. Finley
  • Patent number: 4801378
    Abstract: A compact portable unit for servicing and treating the water of a swimming pool. The unit has a front section and a rear section connected together by an upper section to form a saddle which is set over a side wall of the swimming pool. The front section is submerged in the water contained by the pool and contains a skimmer, a scummer, a filter, and a recycling outlet. The front section may also be provided with footholds, lights, and handrails. The rear section contains a pump and electrical apparatus for operation of the unit. The unit may be equipped with a water heater and is readily installed and removed.
    Type: Grant
    Filed: November 7, 1984
    Date of Patent: January 31, 1989
    Inventors: Pierre Desjoyaux, Jean-Louis Desjoyaux
  • Patent number: 4797958
    Abstract: A bathtub is equipped with a water supply tap (11) and a hydromassage system comprising a plurality of nozzles (12) on the walls of the bathtub (10) to each of which nozzles there are supplied flows of water and air coming from respective delivery (13) and supply (14) lines. The flow of water is taken off by means of a pump (15) having a suction line (17) connected to the container part of the bathtub (10), while the delivery line (13) is connected to the nozzles (12). The suction line (17) is connected to the container part of the bathtub (10) through the intermediary of a suction valve (16) which is normally closed, and each nozzle (12) comprises a plug (69) which is normally closed, so as to separate in a sealed manner the delivery (13) and supply (14) lines from the container part of the bathtub (10). With the plug (69) there is also associated a manually actuated conduit for partializing the flow.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: January 17, 1989
    Assignee: Teuco Guzzini S.r.l.
    Inventor: Virgilio Guzzini
  • Patent number: 4796899
    Abstract: A method and device which provide a liquid-tight seal between a length of pipe, a housing, or other hollow structure and cured concrete in which the structure is embedded. A foamed polymeric sealing element is bonded about a portion of the exterior surface of the structure, and gunnite or concrete is cast about the structure and the sealing element. The interface of the concrete and the foamed polymeric sealing element become substantially permanently sealingly engaged. The method and device are particularly useful in the construction of swimming pools or similar fluid-containing vessels in which pipes or housings penetrate cast walls meant to confine water or other fluids. The method and device may also be used to form seals about structures penetrating cast foundations, dams, bulkheads, retaining walls, cisterns and basement walls.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: January 10, 1989
    Inventors: Robert S. Herrick, Gary E. Webb
  • Patent number: 4776908
    Abstract: A method and associated kit of materials for repairing from above ground a ruptured skimmer box of a swimming pool wherein special fittings are cemented into waterlines connected to the skimmer box with the base of the box filled with an epoxy material. A diverter mounting ring is inserted above the epoxy material for providing a pathway for the water pipelines eliminated by epoxy material.
    Type: Grant
    Filed: December 17, 1987
    Date of Patent: October 11, 1988
    Inventor: Paul S. Sapp
  • Patent number: 4773104
    Abstract: The inflatable bath-pool incorporates water inlet and outlet means, and an inlet water control means which produces a high velocity flow of an air-and-water mixture to provide a massaging jet for the user. Mounting means are provided for mounting the inlet and outlet means as well as the inlet water control means on the pool. The bath pool is connected with external inlet and outlet pipes which are connected to a pump, a water heating means, a temperature control means, and a filter.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: September 27, 1988
    Inventor: Cheng-Chung Wang
  • Patent number: 4649579
    Abstract: A device is provided to control the level of water in the gutter of a swimming pool which is responsive to the level of water in the pool. Weirs are provided on the pool side of the gutter to which weir housings are attached to conduct skimming and/or surge water into the gutter. Each weir housing is provided with a hollow floodable trough-like gate which can be adjusted to control the inflow of water past the gate. The gates are individually adjusted about the perimeter of the pool to control the inflow of water as a function of distance from the water outflow end of the gutter.
    Type: Grant
    Filed: November 7, 1985
    Date of Patent: March 17, 1987
    Assignee: M. Blais Co.
    Inventor: Marc H. Blais
  • Patent number: 4637873
    Abstract: A combination skimmer and filter apparatus for filtering water drawn from the surface of a water-filled spa is disclosed. The apparatus includes a housing that is attached to a side wall of the spa, a filter positioned within the housing, a strainer basket that is positioned within the housing and above the filter, an access door that is releasably coupled to the housing and that opens for access to the filter and strainer basket, and a weir plate that is pivotably coupled to the top of the access door.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: January 20, 1987
    Assignee: Jacuzzi Inc.
    Inventors: Daniel A. DeSousa, Gary L. Gockel, Ralph D'Innocente, Roy A. Jacuzzi
  • Patent number: 4627118
    Abstract: A vacuum filter is provided for vacuum flow filtration through a filter bed of water from a swimming pool including flow from the pool and from the gutter of the swimming pool, and controlling water recirculation capacity to accommodate varying gutter flow, comprising a tank; a filter bed of particulate material in the tank; a first inlet line communicating the swimming pool with the tank for gravity flow into the tank and maintaining a predetermined level of water in the tank in relation to a level of water in the swimming pool, thereby providing a head of water for gravity backwash flow through the filter bed; a second inlet line communicating the tank with the perimeter gutter for the swimming pool for gravity flow into the tank; a third inlet line communicating the tank with the perimeter gutter for the swimming pool for suction flow into the tank; an outlet line communicating the tank with the water recirculation system; a pump drawing a vacuum downstream of the filter bed and recirculating filtered wate
    Type: Grant
    Filed: May 4, 1984
    Date of Patent: December 9, 1986
    Inventor: William H. Baker
  • Patent number: 4621657
    Abstract: A system for maintaining a preselected water level in e.g. a swimming pool comprises a chamber (6) in communication with the pool such that the water level in the chamber corresponds to that of the pool. The chamber contains an adjustable over flow tube (15) and a vertically oriented water supply line (19) having a diaphragm valve (20) and surrounded by an annular float (29), the valve being actuated by a height adjustable overhead actuator bar (23).
    Type: Grant
    Filed: December 10, 1985
    Date of Patent: November 11, 1986
    Assignee: Roto Moulded Plastics Pty. Limited
    Inventor: Lester A. St. Ledger
  • Patent number: D333342
    Type: Grant
    Filed: November 21, 1990
    Date of Patent: February 16, 1993
    Inventor: Harry L. Newhard