Abstract: In order to achieve a fully automatic, electronic adjustment by means of a process for controlling a plumbing combination set with a multi-disc mixing valve for hot and cold water, whereby temperature is adjusted by making a comparison between the actual temperature of the mixing water and the target temperature of the mixing water, it is proposed that the actual mixing value be constantly measured and that a factor for the regulator of the appropriate mixing valve adjustment disc be derived from the target/actual divergence, and that at the same time the preselected flow of the mixture can be maintained at a constant level without measurement of the flow quantities, a correction factor being derived from the factor of the aforementioned adjustment disc for the factor of the flow adjustment disc regulator.

Abstract: An automatic faucet apparatus comprises a drive control means wherein an intermediate drive section coupled to a motor as normally resiliently biased toward the original position is interlocked to a driving shaft coupled to a valve member with a play involved in the interlocking, so that, when the motor is energized to provide an actuating torque to the intermediate drive section and is thereafter deenergized, the intermediate drive section can reset to the original position without requiring any motor output, while the driving shaft is prevented from being affected by the resetting of the intermediate drive section due to the play involved.

Abstract: This invention relates to a lavatory hopper flushing apparatus, particularly, a lavatory hopper flushing apparatus comprising a sensor unit capable of detecting the use of any one of a plurality of lavatory hoppers arranged side by side, and providing a detection signal upon the detection of the use of any one of the lavatory hoppers; a control unit capable of being actuated by the detection signal; and a water supply unit capable of being driven by the control unit so as to flush all the lavatory hoppers simultaneously; wherein the control unit capable of being actuated by the detection signal given by a sensor unit and driving a water supply unit includes a counter control unit which has a counting circuit that counts the frequency of the detection signal and which provides an output signal when the count of the detection signals reaches a predetermined number, and an output control unit which provides an output signal to actuate the water supply unit, upon the reception of the output signal given by the co

Abstract: A water supply system control (10) includes a microphonic circuit (34) which responds to audio signals and converts those signals into electrical signals which may be timed as chosen in order to control a solenoid-driven water valve assembly (14).

Abstract: A flushing system for controlling the flushing operation of a urinal having one or more remotely controllable valves arranged in a flow path of fluid to the urinal, one or more sensors for detecting the presence of a user and controlling means including a timer for receiving the output from the sensor to actuate the valve(s) for a predetermined period of time and then turn the valve off to terminate the supply of fluid to the urinal.

Abstract: A ventilated toilet is disclosed which includes an exhaust fan assembly, electrical connections therefor, and a normally open pneumatically operated switch element, all of which are located remote from the toilet area so that the user is never endangered thereby. An internal passageway is formed within the toilet seat which is in communication with the interior of the toilet bowl by means of a series of spaced holes located in the bottom of the toilet seat. A collapsible bulb is provided beneath each of the two sides of the toilet seat, and each bulb is connected to an air tube that lies within the passageway within the toilet seat. The two air tubes leading from the collapsible bulbs join via a Y-connection into one air tube, which leads to the pneumatically operated switch. When pressure is applied to the toilet seat, the collapsible bulbs are compressed and air is forced under pressure through the air tubes.

Abstract: A sanitary cleaning apparatus is disclosed, which comprises a cleaning water discharge device, a functional device including another cleaning water discharge device or a private parts dryer, a member for turning on and off the cleaning water discharge device, and a human body (presence or absence) detector. Only while the human body detector produces a human body detection signal, the on-off member for the cleaning water discharge device or the functional device is turned on, thereby selectively actuating a corresponding device. One of the devices thus turned on as selected above is de-energized by (a) the turning off of the on-off member of the selected device, (b) the turning on of the on-off member of the other device not selected, or (c) extinction of the human body detection signal of the human body detector.

Abstract: This invention relates to an electro mechanical-electronic device designed to prevent nosocomical contagions spread by the hands of health care personnel and others due to improper and incomplete hand washing. The device establishes a time reference for the personnel to insure the proper time standards of washing and rinsing hands are attained. Further, the automatic dispensing of a proper quantity of non-contaminated skin degermer and the replacement of natural emolients removed during the washing process is accomplished.

Abstract: A fluid delivery system can be alternately manually or automatically controlled. The system comprises a body for directing fluid to a desired location. Means for supplying fluid to the body are also provided. A regulator manually controls the flow of fluid through the body. A releasable lock secures the regulator in an open position so that fluid can flow through the body. An electrically operated valve in the fluid supply has an automatically controlled fluid flow circuit and a manually controlled fluid flow circuit. Sensing means detect the presence of an object proximate the body and provide an electrical signal in response thereto. A controller is provided for opening and closing the valve. Transmitting means transmit the electrical signal from the sensor to the controller for opening the automatically controlled fluid flow circuit in the valve. When the manually controlled fluid flow circuit in the valve is closed, the lock for the regulator is engaged.

Abstract: A water faucet is disclosed that is automatically turned on and off in response to the proximity of the user's hand or other object to the faucet. An ultrasonic transducer is located in the faucet near the water outlet and transmits bursts of ultrasonic waves. When a wave reflects off a user's hand and creates an echo signal, the echo is detected by the ultrasonic transducer. Circuitry connected to the ultrasonic transducer determines when an object is within a predetermined distance of the faucet by measuring the time elapsed between the transmission of the burst and the reception of the echo. Once an object is within this predetermined distance, the circuitry causes a valve to open and water is supplied by the faucet.

Abstract: A toilet bowl flushing device capable of discharging automatically a large amount of flushing water to the bowl immediately after termination of use of the bowl and a small amount of water continuously from the beginning of the use until a predetermined time has elapsed after the large amount discharge. Valve means for controlling the amount of water provided to the bowl includes a small-amount water discharging means and a large-amount water discharging means, and is coupled to a control means including a timer means suitably energizing the small-amount and large-amount water discharging means so that an auxiliary bowl flushing is performed with a small amount of flushing water to prevent sticking of filth to the bowl during the use, a main bowl flushing is realized with a large amount of flushing water immediately after the use, and a small amount of flushing water is kept discharged still after the main flushing to avoid any generation of water hammering phenomenon.

Abstract: An automatic flushing apparatus for vacuum flow system urinals. A pressure ensing switch responds to the hydrostatic pressure resulting from one or two urinations and directs the system vacuum to both a water dispensing valve and the main discharge valve to automatically flush the system with a measured amount of water to prevent odors and soil drain scale buildup.

Abstract: Apparatus for controlling the flushing of a lavatory, for example in a mens urinal, comprises a source of water for flushing, a flush control valve SV wherein the valve is actuated in response to the usage of the lavatory, for example by means of door switch DS. In order that over-use of the device should be prevented in busy periods, a delay circuit D1 is provided to prevent a second actuation of the water supply solenoid valve within a preset period from a first actuation.

Abstract: A water faucet is disclosed that is automatically turned on and off in response to the proximity of the user's hand or other object to the faucet. An ultrasonic transducer is located in the faucet near the water outlet and transmits bursts of ultrasonic waves. When a wave reflects off a user's hand and creates an echo signal, the echo is detected by the ultrasonic transducer. Circuitry connected to the ultrasonic transducer determines when an object is within a predetermined distance of the faucet by measuring the time elapsed between the transmission of the burst and the reception of the echo. Once an object is within this predetermined distance, the circuitry causes a valve to open and water is supplied by the faucet.

Abstract: A flush control apparatus includes a housing which replaces the usual tank top and has a chain extending down to the usual outlet valve member which is weighted to give it negative buoyancy. In the housing is a lever, motor, switch and timing circuit system which operates in response to actuation of one of two push buttons to lift the valve member for a predetermined interval of time, thereby determining an amount of flush water to be dispensed into the bowl.

Abstract: An improved holy water font comprising a stand including an upright, hollow member having an opening to allow the user to place his hand therein. Disposed on either side of the opening is a photoelectric detection system containing an exciter and receiver. This generates a light path across a part of the volume accessible through the opening. Water dispensing apparatus is positioned above the opening, which responds to a control electrical signal. The latter is generated when the light path between the exciter and receiver is interrupted by the user's hand. The photoelectric exciter and receiver is disposed either vertically on either side of the opening. When disposed vertically, a transparent protective shield is employed to protect the lens of the exciter or receiver, whichever is disposed below the opening. The font includes a covered water reservoir disposed at the top of the stand, and a drainable collecting basin disposed below the opening, in the hollow upright member.

Abstract: This invention relates to an electric flush tank designed for replacing the conventional mechanical flush tank, wherein a button switch attached to the outer wall of the water tank controls a solenoid which drives a connecting rod that in turn controls the water outlet. A microswitch installed on the connecting rod activates normally open switch B and forms normally open switch B normally closed switch D and a sustained circuit of said solenoid. A floating ball drives normally open switch A and normally closed switch D installed on the end of the connecting rod, in accordance with the rise and fall of water level. When the water is at its normal level, switch A is open and switch D is closed.

Abstract: This invention, is a multi-function closet stool, which can really serve the purpose of automatic timing, measuring pressure, flushing and saving water. When one sits on the seat of closet stool, the driving piece pulls the driving steel cable to make timing and piston assembly simultaneously actuate and control arm sandwich on top of a movable piece in the sleeve. When one discharges his urine and stands up, the rear part of seat of closet stool will rebound promptly by the spring; meanwhile, the timing unit begins to count time, then, the driving arm makes the control arm release the movable piece in the sleeve by means of the pulling of timing unit and move upwards by the elasticity of spring. A rubber ring compresses air in the sleeve, the high velocity air will instantly rush in air container through a hole passage, pipe joint, filter and pipe. The air will open a movable lid for the purpose of water-flushing.

Abstract: An automatic flushing system having an electrically-operated flush valve, a sensor for determining the presence of a person and a control circuit responsive to the sensor for initiating the operation of the flush valve. The sensor emits pulses from within a defined viewing area. A lens system is arranged to collect reflected light only from the defined viewing area. Light reflected from walls, tile or other shiny surfaces does not activate the control circuit. The sensor is mounted below and behind the flush valve actuating means so as to be partially hidden from view and thus discourage tampering with the sensor.

Abstract: A mechanism for releasing a selected volume of water from a tank has a U-shaped bracket which mounts on the interior of the tank via a bushing which passes through a hole in the wall of the tank. A rod is pivotally supported by the bushing and, in turn, supports a valve which mates with the tank drain when the rod is pivoted to raise a valve support arm to which the valve is attached. A key on a latch arm pivotally mounted on the bracket falls into a notch in the periphery of a latch collar on the rod when the rod is pivoted to raise the valve so that water is drained from the tank so long as the key is engaged by the notch. A float collar journally mounted on the rod is positioned by a float as the water level falls to move an electrical contacting member on the float collar along an arcuate path.

Abstract: A system to protect piping and containers from damage by freezing of contained aqueous liquid includes a temperature-actuated SPDT switch connected at its movable contact to a rechargable battery. The fixed contacts of the switch are connected to two input terminals of a DC motor of a motor-actuated valve having its valve opened or closed depending upon the operation of the switch. The movable contact normally engages the fixed contact that provides voltage to close the valve, if open, as the sensed temperature is above about 35.degree. F., but moves to the other fixed contact when the temperature drops to 35.degree. F. to open automatically the valve. A relay having a coil energized by AC power has a normally open contact coupling the motor and the fixed contact used to close the valve so that closing is inhibited, if the AC power is off, until power is on.

Abstract: A plumbing fixture in combination with means for preventing overflow from a toilet bowl having a P-trap when an obstruction is created in the waste outlet thereof, such plumbing fixture including a blow-out jet pipe, the entrance of the pipe being coupled in fluid communication with the water supply pipe connected to the toilet bowl at the upper portion thereof and the outlet of the pipe coupled in fluid communication with the P-trap of the toilet bowl of the plumbing fixture, comprising: a toilet bowl having a water supply pipe operably coupled therewith; an electrically-controlled flushing valve operably associated with the supply pipe for controlling the flow of water to the toilet bowl; a source of electricity for operating the valve; electrical switch means operably associated with the source of electricity for controlling the delivery of electricity for controlling the delivery of electricity to the valve for actuation thereof; an insulated electrical probe mounted in the water supply pipe; said electri

Abstract: A male urinal automatically flushes when the user steps off a foot plate. The foot plate pneumatically sealed is resiliently deformable and is connected by a pneumatic conduit to a normally open switch whose closure completes a circuit that opens an electrically controlled valve to flush the urinal so long as the switch is closed. Release of pressure on the foot plate creates subatmospheric pressure as the foot plate returns to its undeformed condition, which collapses a diaphragm that permits the normally open switch to close. An air bleed restores the pressure in the foot plate to atmospheric at a controlled rate that predetermines the duration of flushing.

Abstract: A plumbing fixture with a toilet bowl having a P-trap with means for inhibiting overflow from the toilet bowl when an obstruction exists in the waste outlet thereof, comprising: a tolet bowl having a flushing rim thereabout adapted to be coupled to a water supply pipe; an electrically controlled flushing valve for controlling the flow of water in the water supply pipe; a source of electricity for operating the flushing valve; a switch for controlling the flow of electricity to the flushing valve; a blow-out jet pipe coupled to the P-trap and adapted to be coupled to the water supply pipe; a hollow adapter having at least four openings thereinto wherein one opening is coupled to a water supply pipe, one opening is coupled to the blow-out jet pipe, and one opening is coupled to the flushing rim so that when water resides therein water also resides in the adapter via the opening coupled to the flushing rim, said adapter having a weir therein dividing the openings coupled to the water supply pipe and the blow-out

Abstract: An improved control for use in a hand washing and drying apparatus including a first manually operable control device for causing operation of a solenoid-operated valve causing delivery of hand washing water directly to a bowl of the device for a preselected period of time. A second manually operable control device is provided for causing operation of a forced air drying structure of the device to provide hand drying air to the bowl. The control is arranged to prevent concurrent operation of the solenoid and air moving device. The control is further arranged to prevent concurrent operation of the electric heater of the water supply and the blower motor. Still further, the control is arranged to prevent concurrent operation of the solenoid valve of the water supply and the blower motor. The control is arranged to limit usage of electrical power so that a single conventional branch circuit can provide sufficient power to operate the device.

Abstract: An improved control for use in a hand washing and drying apparatus including a first manually operable control device for causing operation of a solenoid-operated valve causing delivery of hand washing water directly to a bowl of the device for a preselected period of time. A second manually operable control device is provided for causing operation of a forced air drying structure of the device to provide hand drying air to the bowl. The control is arranged to prevent concurrent operation of the solenoid and air moving device. The control is further arranged to prevent concurrent operation of the electric heater of the water supply and the blower motor. Still further, the control is arranged to prevent concurrent operation of the solenoid valve of the water supply and the blower motor. The control is arranged to limit usage of electrical power so that a single conventional branch circuit can provide sufficient power to operate the device.

Abstract: There is disclosed an automated flush system which senses the approach and departure of an object or person and produces control signals indicative of said approach and departure, respectively. A discriminator unit receives and decodes the approach and departure signals to produce a flush control signal which controls a flush valve in the flush system as a result of the occurrence of the departure signal following the occurrence of the approach signal.

Abstract: The present apparatus for a toilet has the following features:(1) a spray conduit in a recess in the bottom of the toilet seat at the back;(2) a fluid-tight, rotatable water supply fitting aligned with the hinge axis of the toilet seat and connecting the spray conduit in the seat to an external water pipe;(3) a switch-operated valving arrangement for purging the spray conduit in the seat of standing water and filling it with hot water, and then causing the spraying operation to take place;(4) a switch-operated mechanism for flushing the toilet;(5) a pressure switch in the toilet seat to prevent spraying or flushing except when the seat is down and a person is seated on it; and(6) wiring extending through a tubular safety frame for the toilet to switches at the front for the valving arrangement and the toilet flushing mechanism.

Abstract: A plumbing system for flushing a toilet bowl is provided having one or more high pressure nozzles disposed about the rim of the bowl so that the discharge from the nozzles will impinge upon all of the interior surfaces of the bowl; the nozzles are each connected to a common pressure chamber through a flush valve; the pressure chamber contains an air pocket which will be compressed when liquid under main pressure accumulates in the pressure chamber; liquid from a water main is supplied to the pressure chamber through an adjustable flow restrictor so that, when the flush valve is open and water from the pressure chamber is discharged under pressure through the nozzles, a subsequent flushing cycle will be delayed until a predetermined line pressure builds up in the pressure chamber; a reservoir tank is connected to the bowl drain and is adapted to collect water from other utility stations until a predetermined quantity of liquid is present in the reservoir; control means are provided to discharge liquid from the

Abstract: A water storage tank used in a flush toilet is disclosed wherein a timer is provided on the tank for manually adjusting the flush time to automatically control the volume of water required for flush purpose. And the contact area between a closure member and an outlet tube of the tank is made linear to reduce wearing therebetween and prevent water leakage.

Abstract: A device for automatically controlling the lid and seat of a water closet, and the flushing operation. The device includes an electric circuit which activates a mechanical system for opening and closing the lid, or both the lid and the seat. The system includes a mechanism for automatically flushing the water closet when the lid is being closed.

Abstract: An automatic water level control system for a bathtub is provided whereby the user merely sets a manual control to a desired water level. The control system then sequentially closes the bathtub drain and turns on the water faucet. The water faucet is preferably of the temperature mixing type which has previously been pre-set by the user, so that water at a desired temperature flows into the tub. When a selected, pre-set level has been reached, the water is automatically turned off and the bath is ready. The control system uses solenoid controlled valves connected to the usual manually controlled valves in such a manner that the normal manual control of the bath water is not interfered with in any way when the automatic control system is not activated.

Abstract: An electrical toilet flushing device is provided which is particularly adapted for use in prisons and similar institutions whereby a toilet cannot be made to overflow by repeated flushing, even if the toilet is clogged. A fail-safe electrical circuit is provided and, in accordance with one embodiment of the invention, an electrical alarm is provided for toilets, warning when the water reaches a high level.

Abstract: An electromagnetic flush control setup employed in a flush toilet comprising an inducing terminal, an amplifier coupled with a trigger circuit, and an electromagnet setting. The inducing terminal is placed beneath the ringed cover of a flush toilet whereby to induce therein, in accordance with the variation of electrostatic field, a small signal which is then amplified, transduced and rectified to drive a relay so as to charge a capacitor from a DC source. And subsequently with vanishing of the signal, the charged capacitor reversely discharges whereby to initiate a SCR making the electromagnet work and exert up the outlet valve of water box. Upon exhaustion of the capacitor, SCR and electromagnet repose thus accomplishing the flush process.

Abstract: A ventilator for toilets is disclosed which includes an air duct to receive and remove the odorous air, an air suction device to establish the odorous air flow, a control for initiating and terminating the odorous air flow, and an electrical transducer responsive to the motion of the toilet flushing mechanism so as to terminate the air flow at the moment the toilet is flushed.

Abstract: A plumbing fixture is provided with means for preventing flooding by obstructing the waste outlet thereof, such means being an overflow chamber along the edge of a bowl or basin, further provided with an electrical probe within the overflow chamber to complete an electrical circuit between the probe and the basin when the water level bridges the gap therebetween, thereby actuating a normally open solenoid valve to closed position for shutting off the supply of running water to the basin. The invention is applicable to a combination lavatory and water closet fixture for preventing flooding from either the bowl of the lavatory, or the bowl of the water closet, or both by providing such means for both bowls.

Abstract: A self-contained electric flushing toilet bowl in which water for flushing the bowl is automatically controlled by unique control mechanism to perform a series of cyclic operations in which the supply water to the bowl and outlet flow from the bowl will be so coordinated as to impound a volume of water in the bowl at a raised water level for use in flushing and cleaning the bowl, the control mechanism being housed in an accessible rear compartment of the bowl structure. Outlet flow from the bowl is controlled by means of a valve structure embodied in a line trap of elastomeric material connected to the bowl outlet.

Abstract: A control circuit for the motor of an electric marine toilet which, effectively, causes the toilet to flush. A conventional D.C. source of potential is employed with a conventional marine toilet including a motor, a pump driven by the motor and a macerator driven by the motor. The lid of the toilet operates a normally open switch. An advantage of the invention is that the lid-operated switch prevents injury to the operator. Moreover, the lid-operated switch provides a motor control override. That is, the motor can be turned off whenever the lid is lifted. A control circuit is provided between the source and the motor to control the motor, the lid operating, for example, by a magnet, a reed switch in the control circuit. The flush cycle may extend over any period. However, a three-second flush cycle is typical. The control circuit includes a momentary contact push button to operate the motor for a three-second interval timed by the control circuit.