Matches 151 - 200 out of 228 < 1 2 3 4 5 >


Match Document Document Title
4233694 Spa construction and isolated controls therefor  
A spa construction for use by humans comprising a shell for containing water and having a well for receiving the feet of the user. A seat is provided adjacent the well upon which the user can sit....
4212740 Floating weir and strainer basket construction  
An improved floating weir and strainer basket combination for use in a swimming pool skimmer, having a tank adapted to receive the strainer basket and the floating weir in telescoping relation...
4211249 Liquid level control system  
A liquid level control system is disclosed for use with a swimming pool or the like having a pool reservoir, a main drain or outlet, usually at the bottom of the reservoir, and an outlet located...
4193870 Pool cleaning system and apparatus  
Apparatus for cleaning a swimming pool wherein one or more automatically controlled water jets are strategically spaced about the floor of the pool, their periodic operation and their direction...
4193143 Swimming pool steps and water circulating arrangement for swimming pools  
A set of swimming pool steps of which the handrails are pipe members, one being part of the suction line of the water circulating and purifying systems and the other being the return line for the...
4179761 Wall construction for swimming pools  
A wall construction for swimming pools, and method of making same, wherein the pool wall, the recirculating system, gutter and conduit, the bottom wall seal, and the deck coping are all formed...
4154679 Operating mechanism for swimming pool skimmer  
A divider plate having a strainer basket depending therefrom is positioned in a skimmer apparatus intermediate the skimming inlet and the lower end. A conduit passes through the basket and...
4141101 Self propelled drivehead for automatic swimming pool cleaner  
An improved drivehead for an automatic swimming pool cleaning system includes a circular wheel member mounted for free rotation around a platform member. The platform member carries a water jet...
4115877 Liquid level sensing device and swimming pool water circulation systems containing the same  
A liquid level sensing device is provided comprising, in combination, a U-tube having two substantially vertical legs in fluid interconnection at their lower ends; a variable capacitor in one leg...
4108775 Cartridge filter  
A cartridge filter unit particularly adapted for use in a swimming pool water purification system because of its modular design, includes a readily accessible filter body. By removing a cover, a...
4059856 Swimming pool gutter  
A swimming pool gutter including a combined gutter conduit and a sealed filtered water inlet conduit at the bottom of the gutter conduit. The gutter is formed from two sheet metal members joined...
4059519 Pump basket strainer and assembly  
An upright strainer basket for reception in a housing primary chamber having an upper fluid inlet port and a lower fluid outlet port. The basket has:A. exteriorly presented ribs that intersect to...
3943580 Therapeutic pool system  
A therapeutic pool system whereby a safer and more comfortable air circulation system is provided.In detail, it comprises a fluid circulation system which circulates the fluid, usually water, from...
3939505 Self-hinged, buoyant weir plate for skimmers  
A one-piece buoyant weir plate for use in skimmers for swimming pools and the like is formed from a rectangular sheet of expanded plastic or like material with closed cellular structure. The plate...
3923230 Method of making a swimming pool gutter  
In a swimming pool a conduit system comprising a peripheral gutter formed from a coping which includes an upstanding wall and a bottom wall. A channel-shaped member has its free edges continuously...
3909415 Anti-siphon valve for swimming pool lint pot  
A lint pot for an above-ground swimming pool has a flap valve on the inlet to the housing, the flap valve being closed by a flow of water from the pool into the lint pot. When the removable top to...
3890230 Wall formed conduit for swimming pools and method of making the same  
A conduit and the method of making the same for the introduction of filtered water into swimming pools, the conduit formed by covering a generally horizontal conduit forming portion in a metallic...
3867289 CHECK VALVE AND CHECK INDICATOR  
A check valve having a valve body with an inlet and a discharge with the valve body constructed for positioning of the inlet in a generally vertical position and the discharge in a generally...
3841487 FILTER DEVICE  
Device for purifying the surface and subsurface water in swimming pools, providing an easy means of examining the filter basket for the water taken in by suction from the bottom plug of the pool,...
3839750 WEIR HINGE STRUCTURE  
A weir for a swimming pool skimmer having outwardly extending integral hinge pins to enter and be journaled in sockets in the walls of the throat of the swimming pool skimmer, the weir being...
3831852 FOUNTAIN SPRAY SYSTEM FOR SWIMMING POOLS  
A spraying means for spraying water in a fountain effect into a swimming pool is disclosed. Water is pumped through a tubing means positioned inside the coping that surrounds the swimming pool and...
3813705 GUTTER-TYPE SWIMMING POOL CONSTRUCTION  
A swimming pool with a hand-hold and gutter lip comprising shaped pre-fabricated sections connected in end-to-end relation by telescoping connectors along the sidewalls and at the corners, each...
3797508 PORTABLE POOL CLEANER  
A portable cleaner for swimming pools has a housing with walls defining a chamber, and ballast arranged in the housing for permitting the housing to be freely supported on a bottom surface of a...
3788982 COLOR CONTROL OF WATER THAT IS RECIRCULATED  
3786921 HEATER BYPASS AND SHUT-OFF VALVE  
A shut-off device for a heater for water in continuous circulation, as in the filtering line for a swimming pool, is disclosed. The flow of water through the system is monitored by a bypass...
3759389 FILTER ASSEMBLY FOR SWIMMING POOLS  
A filter assembly for swimming pool made of wall segments assembled edge to edge to form the wall of the pool. The filter assembly comprises a casing integral with one of the wall segments and...
3668712 PERIMETER SKIMMING GUTTER FOR SWIMMING POOLS  
A perimeter skimming gutter for swimming pools is provided including a gutter conduit for disposition about the perimeter of a swimming pool and adapted to carry water at a level below a...
3668714 NONFLOODING PERIMETER SKIMMING GUTTER FOR SWIMMING POOLS  
A nonflooding perimeter skimming gutter for swimming pools is provided, including a first gutter conduit for disposition about the perimeter of a swimming pool, and adapted to carry water at a...
3615013 SWIMMING POOL APPARATUS  
3610416 PUMP FOR LIQUIDS  
The pump includes a body having two inlets, arranged one above the other, and an outlet. A pair of spaced-apart impellers rotate within the body between the two inlets and draw liquid into the...
3567020 POOL SKIMMER  
A pool skimmer and the like including a skimmer assembly adapted for use with residential and commercial installations with means for selectively operatively connecting various lines and apparatus...
3555574 SPRING LOADED WEIR FOR POOL SKIMMERS  
3540592 CLOSED-CIRCUIT SYSTEM FOR THE TREATMENT OF THE WATERS OF A SWIMMING POOL  
3537111 SYSTEM FOR CONTROLLING WATER LEVEL AND RECIRCULATION IN SWIMMING POOLS WITH GUTTERS  
3530511 AUTOMATICALLY EXTENSIBLE AND RETRACTABLE POOL CLEANING APPARATUS  
3528548 ELECTRICAL CIRCUIT FOR TEMPERATURE CONTROL OF SWIMMING POOL WATER  
3513977 LINT POT FOR SWIMMING POOL FILTER  
3508661 SKIMMER FOR SWIMMING POOLS AND THE LIKE  
3506489 METHOD AND APPARATUS OF CLEANING A POOL  
3486623 METHOD AND APPARATUS FOR FILTERING FLUIDS  
3471021 VALVE AND LIQUID FLOW SYSTEM  
3443264 SWIMMING POOL VACUUMING APPARATUS  
3391790 Overflow and recirculating systems for swimming pools  
3363767 Water distribution system for swimming pools  
3319264 Coping assembly for swimming pools  
3316937 Six-way swimming pool filter valve  
3314543 Cleaning system installation for swimming pools  
3310173 Apparatus for removing sediment from swimming pools  
3306448 Automatic skim tank and system  
3278949 Swimming pool cleaning apparatus  

Matches 151 - 200 out of 228 < 1 2 3 4 5 >