A water gate for a waterway in two species, in one of which an inflatable and deflatable barrier is provided in side and bottom recesses, the gate being in a closed position when the barrier is inflated and an open position when the barrier is deflated, the other of the species providing a curtain which may be raised or lowered by inflating or deflating a balloon disposed at the top of the curtain.

The present invention provides apparatus for retracting water from the water supply line of a dental tool having a control valve actuated by pressurized pilot air. The apparatus retracts the water from the water supply line when the control valve is deactuated to prevent unwanted discharge of the water from the tool when the tool is no longer being used.

Apparatus and method for providing heat to a hot water storage system in which water from the storage system is circulated through a heat exchanger in the flue of a combustion heat source and circulatory flow is provided by a circulating pump in a secondary circulatory system including a heat exchanger having greater heat transfer capacity than the heat exchanger in the flue so as to dissipate excess heat at a controllable rate.

Water lounge comprises generally rectangular shaped impervious body portion including bottom wall with front, back and side walls extending upwardly therefrom adapted to hold water. Spaced apart wheels are rotatably secured to body portion near back wall thereof, and adjustable backrest is within body portion also near back wall thereof. Drain is provided in bottom wall of body portion, and several props extend downwardly from body portion near front wall thereof for maintaining body portion gen...

A skimmer unit for use with a body of water. The water skimmer comprises a housing, a basket for collecting debris, and a partitioning baffle with upper openings and optionally lower openings, a skimmer chamber, and other chambers. The baffle's lower opening is preferably positioned below the rim of the perforated basket and its upper, screened or gated opening is positioned above the rim of the basket for allowing water to pass in the event of debris clogging the first opening, overflow conditi...

A blending of geometrical shapes combine the best features of a pipe tank (standpipe) and a common multi-legged elevated tank. The bowl of an elevated tank has been designed as the top section of a standpipe or tube tank. This type design provides the near constant pressure and volume that a true elevated tank provides and a large volume of water for emergency purposes.

A water feature comprising a vessel (1) for containing water, an electrically powered submersible water pump (2) within the vessel (1) for pumping water to an outlet of the water feature and a solar panel (4) arranged to provide electrical power to the water pump (2). The solar panel (4) is arranged within said water vessel (1) above the water pump and so as to be beneath the water level (7) in the vessel (1) in use.

A water pump for motor vehicles having a pump wheel arranged at the end of a shaft. A belt driven pulley is connected to the shaft for rotating the shaft and a bearing journals the shaft. The bearing has a fixed race, a rotatable race and two rows of roll bodies located therebetween. The shaft and the pulley are integrally connected to the rotatable race and the pulley has a rim for receiving a drive belt extending about the bearing so that the line of application of the force acting on the bear...

An in situ desalination apparatus comprising a reverse osmosis unit (15) having a reverse osmosis medium, the reverse osmosis unit in use to be located within a body of water under ambient bio-physico-chemical conditions often different from those at the surface, the unit having an inlet (17) opening to one side of the reverse osmosis medium, in use the inlet to be located below the upper surface of a body of water, the unit having a concentrate outlet (25) opening to the one side of the reverse...

Apparatus for reducing water consumption of a water closet cistern. The apparatus consists of a structure comprising two lateral webs connected to a cross-piece. The height of the lateral webs is substantially equal to or less than the normal water level. Insertion of the structure into the cistern reduces its consumption of water.