Abstract: A water conservation and delivery system for a building includes a first subsystem for dispensing clean water from a faucet, a second subsystem for draining waste water from the vessel supplied by the faucet, and a third subsystem for recirculating clean water prior to dispensement back into the dispensing subsystem while the dispensing temperature and flow are adjusted.

Abstract: A programmable electronic control controls water flow from a first electronically controlled valve assembly which receives water from the first water source, e.g. cold water. A second electronically controlled valve assembly is under the control of the programmable electronic control and controls the outflow of water received from a second water source, e.g. hot water. A mixing chamber assembly receives and mixes water coming from the first valve assembly and from the second valve assembly. A third electronically controlled valve assembly is connected to the mixing chamber assembly through a pipe and is under the control of the programmable electronic control. A temperature sensor assembly is connected to the programmable electronic control and senses water temperature at the third valve assembly. The temperature sensor provides a signal to the programmable electronic control representing the water temperature of the blended water sensed at the third valve assembly.

Abstract: A shower apparatus is provided with a plurality of shower discharge ports. More specifically, a shower apparatus is provided, in which hot water remains in a hot water line, that is communicated with the shower discharge ports, after the discharge has been completed. The hot water, which has a lower temperature, is drained through a drain valve for disposal of the water in the hot water line and a drain line. At the beginning of the next shower discharge, cold water is thus prevented from being discharged. The operation of an opening and closing valve for effecting discharge and stoppage of each shower discharge port is controlled according to control programs, so that the shower discharge is automatically controlled. The content of the shower discharge, carried out according to the programs, can be changed by a user through the operation of a control section. Moreover, upon the start of the shower discharge, a sudden jet of water is prevented.

Abstract: The present invention is related to a shower apparatus provided with a plurality of shower discharge ports. More specifically, a shower apparatus is disclosed in which hot water remains in a hot water line connected to several shower discharge ports, after a discharge has been completed. Hot water within the hot water line which has lowered in temperature is drained through a drain valve in order to dispose of the water. At the beginning of the next shower discharge, cold water is prevented from being discharged. The operation of an opening and closing valve for effecting discharge and stoppage of each shower discharge port is controlled according to control programs, whereby the shower discharge is substantially controlled. The content of the shower discharge, carried out according to the programs, can be changed by a user through the operation of a central section. Moreover, upon the start of a shower discharge, a sudden jet of water is prevented.

Abstract: A control system for water faucets comprises an on-off control switch located at a sink and actuated by pressure applied and released by the body of the user. When the body of the user pushes forward towards the sink, the switch will be depressed and the water faucets will turn on. When the user backs away from the sink, the switch will be released and close off the flow of water. An overflow reservoir is provided to collect cold water run off prior to the time when hot water makes its way through the water pipes, and a temperature sensor switch and/or alarm controls either an automatic or manual change over from hot to cold water. In addition, a microprocessor and key board control various water delivery functions such as volume and temperature. The control system reduces leakage and saves water which would otherwise be lost due to running the hot water until it becomes heated to the desired temperature.

Abstract: A cesspool for handling waste water passed through the cesspool to an associated drainage system has two separate odor locks for preventing the escape of odoress gas from the drainage system through the cesspool. A downwardly extending inlet member is surrounded by and protrudes downwardly into a vertically movable cup. Water held by the cup normally provides a first odor lock between the cup and the inlet member. The cup is biased upwardly and has an upper edge which is engagable with an elastic seal to provide a second odor lock. The second odor lock assures an odor seal between the inlet member and the cup even when the water in the cup falls below the level required to maintain the first odor lock.