Matches 51 - 100 out of 103 < 1 2 3 >
Match Document Document Title
4837870 Spa overflow system  
A spa of the commercial variety improved by having a flow control system associated therewith that includes overflow chambers and tank capable of retaining or storing water displaced from the spa...
4823428 Waste liquid disposal apparatus  
An apparatus for disposing of waste liquid from an industrial cleaning system, which comprises a waste liquid holding tank designed to fit on a toilet, for receiving waste liquid and automatically...
4817217 Swimming pool control system  
A control system for automatically maintaining a predetermined water level in a swimming pool includes a multi-contact water level sensor unit mounted on an exposed sidewall of the pool. The sensor...
4754502 Inflatable bath  
A self-standing inflatable bath is provided which is constructed in a manner somewhat similar to the construction of an inflatable rubber raft, and which is intended to be placed on a solid...
4735230 Overflow valve system  
An overflow valve system (10) comprises a tubular housing (12) having a J-shaped pipe fitting (14) mounted therein having an injection nozzle (24) at a first pipe-fitting end (26) located in a...
4724552 Apparatus for automatically maintaining a predetermined desired level of water in a swimming pool, and the like  
An apparatus for automatically monitoring the level of water in a swimming pool, or the like, by monitoring the level of a float within a float chamber supported by water siphoned from the pool...
4706310 Liquid level control system  
The invention is directed to a liquid level control system which can be installed within an automatic pool reservoir surface skimmer or separately within or external of the reservoir which includes...
4706309 Automatic rim flow water level control system for gutters  
An automatic rim flow water level control system for gutters is provided, for use in swimming pools, which includes a peripheral gutter having at least one weir chamber on its pool side wall, the...
4686718 Method and apparatus for automatically maintaining a predetermined desired level of water in a swimming pool, and the like  
An improved method and apparatus for automatically monitoring the level of water in a swimming pool, or the like, by monitoring the level of a float within a float chamber supported by water...
4655243 Automatic pool filler  
A device that maintains the water level of a swimming pool within acceptable limits. The device includes a valve member that has a valve chamber and a diaphragm chamber. The valve member is held in...
4649579 Swimming pool skimming weir  
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...
4627118 Vacuum filter for swimming pools controlling water recirculation capacity to accommodate varying gutter flow  
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...
4621657 Automatic water level monitoring system  
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...
4612949 Apparatus for controlling water level  
Apparatus for monitoring and controlling the level of fluid in a reservoir. The apparatus utilizes a fluid sensing probe to monitor the level of fluid in a reservoir and can generally be installed...
4607399 Automatic pool water regulator apparatus  
A pool water regulator has two vertical pipes which indicate the pool water level. Each pipe has a floating element disposed therein, and each float element has a switch secured to a distal end...
4607658 Water level control device  
A device for automatically controlling the water level in a basin, such as a bathtub. Air pressure in a tube is used to halt water flow into the basin when a desired water level is reached. Various...
4586532 Liquid level actuator  
An apparatus for sensing changes in liquid level in a reservoir and adjusting flow of liquid into the reservoir to maintain the level at a selected height, the apparatus including a base member, a...
4574405 Water level control device  
A water level control device is adapted to be detachably mounted within a swimming pool at the desired water level. A float controlled valve is mounted within the housing which is responsive to...
4542544 Modular welded perimeter skimming gutter for swimming pools  
A modular bonded perimeter skimming gutter retaining wall for swimming pools is provided for construction by simple bonding together of a plurality of modular units on-site, disposed about the...
4539719 Pneumatic surf wave production for pools  
Method and apparatus for creating in a water pool a wave for surfing, the pool having a reservoir at one end open to the pool beneath the undisturbed water level of the pool, a fan connected to the...
4504985 Swimming pool coping  
A swimming pool coping permitting overflow, which is rectilinear and has an upwardly opening overflow channel therein parallel to its length. The coping has an upper surface that is flat and...
4494257 Flow control device  
A control device for regulating the skimming flow of surface water from a swimming pool to a perimeter gutter includes a housing disposed in a gutter wall, at the normal level of water in the pool,...
4483025 Snap-on gutter cover for swimming pools  
A snap-on swimming pool gutter cover is formed of a generally planar major portion including a rear edge and an inverted, channel-shaped, front, female portion which snaps down onto a...
4471798 Flushing cisterns  
An auxiliary float chamber is provided for use in a cistern. A float operating in the chamber controls a valve allowing water into the cistern. In the floor of the chamber there is a syphonic tube....
4462125 Coping and deck system for a swimming pool  
Collection apparatus for overflow water from a swimming pool comprising an overflow member at the side wall of the pool for flow of pool water thereover, and a flow receiving member extending...
4454035 Pool skimmer  
An improved combination pool skimmer is disclosed which may be adapted to provide surface water skimming, or subsurface water sweeping or vacuuming of a swimming pool. The skimmer has a body...
4445238 Swimming pool water level control apparatus  
Swimming pool water level control apparatus includes a remote indicator for sensing the water level in a swimming pool and for turning on and off a water flow control valve to provide water for the...
4389739 Automated surge weir and rim skimming gutter flow control system  
An automated skimming flow perimeter gutter control system for swimming pools is provided having a water cleaning and recirculation system receiving water from the pool, cleaning it, and returning...
4380091 Control circuitry for water level control of pools  
Circuitry for automatically controlling the water level of swimming pools with a multi-level detecting sensor for directly sensing the pool water. A low voltage oscillator in the input portion of...
4373220 Pool water level maintenance apparatus and method  
An improved water-level control method and apparatus automatically maintains the water level in a pool by selectively filling or draining water as required during the period that the circulating...
4365366 Three port valve with drain passage  
A valve has a body with multiple openings and a rotary valve member rotatable in a body cavity to control flow through the openings. A fixed closure member extends over one of the body openings,...
4342125 Water level control for swimming pools  
A water level control for swimming pools is provided in the form of a casing for suspension on a ladder, pool wall, or pool edge having a float-controlled valve detachably coupled with a pressure...
4333186 Swimming pool construction  
The specification discloses a removable swimming pool construction having a plurality of prefabricated side and deck panels which are supported on adjustable frame members, and are installed in a...
4324007 Sanitation system particularly for marine craft  
A macerator/ejector pump within a waste material holding tank on a boat liquefies solid waste material in the tank and pumps the liquefied waste material through a discharge line adapted for...
4265598 Apparatus and method for de-actuating swimming pool equipment  
In a swimming pool having an electrically powered pump for circulating water, a portion of the water in the swimming pool is directed into a chamber in communication with the pool, so that the...
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 at...
4185333 Circulation and level control valve  
Liquid levels for controlled in systems that include different liquid bodies between which liquid circulates. Such bodies may typically include swimming pools and spas.
4146937 Perimeter skimming gutter with fluid level-responsive weir closure for weir skimming flow control  
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...
4133058 Automated pool level and skimming gutter flow control system  
A fully automated pool level and skimming gutter flow control system is provided, automatically establishing and controlling pool level and skimming gutter flow under both normal and extraordinary...
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...
4014052 Apparatus for maintaining a predetermined liquid level  
An apparatus for maintaining a predetermined liquid level within a tank while effecting the continuous addition and removal of liquid within the tank. The apparatus is provided with a housing that...
3997925 Apparatus to control the water level in a swimming pool  
Apparatus to maintain the desired water level in a swimming pool includes a stilling chamber receiving pool water from an equalizer pipe connected to the pool essentially below the desired water...
3908206 Automatic water level keeper for swimming pools  
A body of water in a water tank located adjacent the upper rim of an above-ground swimming pool is connected by a pipe to a body of water in the swimming pool. The water levels in the pool and in...
3895402 Remotely located apparatus for maintaining the water level within a swimming pool  
A remotely located water level sensing chamber for swimming pools is disclosed. The sensing chamber includes a valve for regulating the flow of makeup water to the pool and means for preventing...
3848627 APPARATUS FOR MAINTAINING THE WATER LEVEL WITHIN A SWIMMING POOL TO PREDETERMINED LIMITS  
In order to maintain the water level of a swimming pool within predetermined limits, an electrically operated valve connected between a source of makeup water and the pool is opened whenever the...
3837015 WATER LEVEL CONTROL FOR SWIMMING POOL  
A valve through which water from a water supply source may be admitted to a swimming pool is located in the throat of the skimmer of the pool beneath a weir pivotally supported at the entrance of...
3739405 WATER LEVEL MAINTENANCE DEVICE FOR SWIMMING POOLS  
A device for maintaining the water in a swimming pool at an established level, is disclosed. The subject device involves a water-level tank which has a fluid connection to the swimming pool such...
3537111 SYSTEM FOR CONTROLLING WATER LEVEL AND RECIRCULATION IN SWIMMING POOLS WITH GUTTERS  
3386107 Level control and circulation system for swimming pools  
3139628 Automatic water refill system for swimming pool  
Matches 51 - 100 out of 103 < 1 2 3 >