Abstract: An instant hot water dispenser system includes a main body, having a water flow control valve seat, a water inlet and a water outlet, the water flow control valve seat being provided with a first flow control valve and a second flow control valve; a faucet being provided with a first pull member, a second pull member and a water outlet pipe; a first heating unit having a first water storage space and a heater; a second heating unit having a circulating water path and an instantaneous heater, the instantaneous heater being configured to instantaneously heat a water supply in the circulating water path to a predetermined temperature; a processing unit electrically connected to a control interface, the processing unit being further electrically connected to the water flow control valve seat, the first heating unit and the second heating unit.

Abstract: A bed warming system for heating the envelop formed between the surface of a bed sheet covering a bed mattress and a cover laying over the bed sheet. The bed warming system comprises a warm air generator having a cool air inlet, a warm air outlet, and an elongated conduit having a first end connected to the cool air inlet for directing cool air to the warm air generator and a second end for receiving cooling air, the elongated conduit is of sufficient length such that when the warm air generator is placed under a cover the second end of the elongated conduit is exposed and not under the cover.

Abstract: A water delivery system is provided, comprising at least one faucet device with a cold water faucet part and a hot water faucet part, a cold water line to the at least one faucet device, a tankless heater device for heating water, a hot water line having a first portion running from an outlet of the tankless heater device to the at least one faucet device and having a second portion running from the at least one faucet device to an inlet of the tankless heater device, and a circulatory pump arranged in the second portion of the hot water line, wherein the circulatory pump has a prefixed first performance level and a prefixed second performance level, wherein the first performance level causes a finite water flow in the hot water line which is below an operation threshold value of the tankless heater device.

Abstract: A combined showerhead and tankless water heater. A control panel permits a user to adjust the temperature level of the water that is heated. In one embodiment, the water flowing through the tankless water heater portion can be heated up about an additional eighteen (18) degrees.

Abstract: A boiler regulation system for diverting energy from a boiler to hot water production having a housing with a thermostat dial, a sensor connection, and a plurality of connections on the housing; a step down transformer, a first general-purpose relay coil, a close-on-rise thermostat, and a first normally closed contact relay corresponding to a heating zone valve/pump each in the housing; wherein when the close-on-rise thermostat senses a rise in temperature when hot water is in demand the close-on-rise thermostat closes sending a first signal to the first general-purpose relay coil and the first general-purpose relay coil energizes causing the first normally closed contact relay to open, discontinuing power to the heating zone valve/pump thereby enabling boiler energy to be used for hot water.

Abstract: A water boiling device includes a heat tank unit received in a machine body, a high frequency induction heater, and a heat pipe unit. The heat tank unit includes first and second heating tanks in communication with each other. Outside water can flow into the first and second heating tanks. The high frequency induction heater includes a heat pipe induction coil and first and second induction coils. The heat pipe unit includes first and second heating pipes. An upper section of each heating pipe is received in one of the heating tanks, and a lower section of each heating pipe extends out of the heating tanks and is inserted into the heat pipe induction coil. The first and second heating tanks will heat up to heat the water in the first and second heating tanks when a high frequency current is passed through the heat pipe induction coil and first and second induction coils.

Abstract: A proximity switch flow sensor detects movement of a faucet handle of a faucet of a hot water container in order to detect flow from the hot water container. The proximity switch flow sensor includes an emitter paired with a detector, which can be mounted in association with the faucet handle to detect open and closed positions of the faucet handle, to provide electronic logic information regarding the status of the faucet handle position, as an indication of a flow condition, to a control unit that controls heating of water in the hot water container. An electro-mechanical switch and a mechanism to transfer movement of the faucet handle to the switch may also be used to detect open and closed positions of the faucet handle as an indication of a flow condition.

Abstract: A heat exchanger comprises a substantially pillar sheathed heater, a substantially cylindrical case, and a spiral spring. The sheathed heater is accommodated in the case. The spring is provided so as to be wound around an outer peripheral surface of the sheathed heater. Thus, a spiral flow path is formed among an outer peripheral surface of the sheathed heater, an inner peripheral surface of the case, and the spring. The spring functions as a flow velocity conversion mechanism, a turbulent flow generation mechanism, a flow direction conversion mechanism, and an impurity removal mechanism. A water inlet and a water outlet are respectively arranged at positions eccentric from a central axis of the case on a side surface of the case.

Abstract: A liquid dispensing unit and method for sensing temperature of an electric valve. In one embodiment, the liquid dispensing unit includes a manifold which has a liquid passageway adapted to connect to a source of heated liquid. An electrically operated dispensing valve is coupled to the manifold. The dispensing valve includes an external surface and a liquid passageway which is in fluid communication with the liquid passageway of the manifold. The dispensing valve is selectively operative to dispense the heated liquid. The liquid dispensing unit further includes a temperature sensing device operatively associated with the dispensing valve. The temperature sensing device has a sensing element contacting the external surface of the dispensing valve to measure the temperature of that external surface and thereby indirectly measure the temperature of the heated liquid within the dispensing valve.

Abstract: The invention relates to a device for the continuous heating of a liquid, such as water, to a constant temperature, particularly for domestic applications and more specifically for preparing coffee. The device includes a reservoir of water at ambient temperature, a pump, a heating unit whose electrical power supply is controlled by a switch, and a user outlet for delivering liquid at the desired temperature. The device also includes a component for regulating the flow rate of cold water delivered by the pump to the heating unit controlled by the temperature of the liquid leaving the heating unit and a component for recirculating water leaving the heating unit to the reservoir or to the inlet side of the pump for as long as this water has not reached a the constant operating temperature. The recirculation unit is controlled by the temperature of the water leaving the heating unit. The control is achieved by the use of a rated valve on the heated liquid outlet.

Abstract: An electrically operated fluid dispenser for dispensing a pattern of viscous fluid onto a substrate during a run mode. The dispenser is turned off and does not dispense the viscous fluid during a standby mode of operation. The dispenser includes a dispenser body having an outlet and an armature disposed in the dispenser body for movement between an opened position allowing a fluid flow from the outlet and a closed position preventing the fluid flow from the outlet. A coil is mounted adjacent the armature and selectively generates an electromagnetic field for moving the armature between the opened and closed positions. A controller includes different apparatus and methods for using the coil as a heater as well as providing other heat transfer devices on the dispensing valve to maintain a constant temperature either, during only the run mode or, during both, the run and the standby modes.

Abstract: A remote control tankless water heater system that obviates the need to mix hot and cold water in a sink, faucet, shower, etc. In one embodiment, there is a key pad control system, including preset buttons which serve as a memory for storing optimal user temperatures, automatic troubleshooting, and scald protection. In another embodiment conventional-appearance mixing knobs are employed. In addition to controlling the water temperature, the knobs also control the flow of water in the system, but they do not control temperature and flow in the conventional manner. The user thinks that he or she is mixing hot and cold water when turning knobs to obtain the desired temperature and flow rate. In actuality, the temperature and flow rate are guided by a microprocessor, and they are based upon the ratio of rotation between the two knobs and the aggregate rotation of the knobs, respectively.

Abstract: A remote control tankless water heater system that obviates the need to mix hot and cold water in a sink, faucet, shower, etc. In one embodiment, there is a key pad control system, including preset buttons which serve as a memory for storing optimal user temperatures, automatic troubleshooting, and scald protection. In another embodiment conventional-appearance mixing knobs are employed. In addition to controlling the water temperature, the knobs also control the flow of water in the system, but they do not control temperature and flow in the conventional manner. The user thinks that he or she is mixing hot and cold water when turning knobs to obtain the desired temperature and flow rate. In actuality, the temperature and flow rate are guided by a microprocessor, and they are based upon the ratio of rotation between the two knobs and the aggregate rotation of the knobs, respectively.

Abstract: A cleaning unit is described which includes a heating unit and a recirculating pump assembly capable of supply a given fluid flow output at a given pressure at a dispenser head or wand. The recirculating flow is controlled by an unloader valve connected to the high pressure side of a pump, recirculating a portion of the flow to the low pressure side when the pressure in the high pressure side exceeds some set value. The unit utilizes an oversized pump so that an undersized motor can be used to improve durability and lifetime and low weight.

Abstract: A compact “in-line” tankless double element water heater includes a top connected to a manifold having a cold water inlet and a hot water outlet for connection to the cold, and hot water lines of a faucet. The compact water heater includes a body with a passageway through which cold water travels, from the top towards the bottom, where it is fed into four separate chambers, two each separated on opposed sides of the body and of a diaphragm. A first of the two chambers on each side has no outlet, and the pressure of cold water therein presses against a first side of the respective diaphragm, while the second of the two chambers on each side includes an outlet to a separate hot water chamber on each side, having a separate heating element therein. A second of the two chambers on each side also includes a plunger, biased by a spring against a second side of the diaphragm, and a plunger rod, which contacts an operating member of a microswitch.

Abstract: A valve of a vacuum apparatus with a valve seat body having left and right communicating openings opposed to the two vacuum chambers, respectively, a valve body movable in the axial direction of the valve seat body and rotatable around the center axis thereof, and a driving section for moving the valve body in the axial direction of the valve seat body and for rotating it around the center axis thereof, the valve being so disposed between the left and right vacuum chambers that the driving section of the valve is projected outwardly in the horizontal (lateral) direction.

Abstract: An improved “in-line” tankless electrical resistance water heater includes a top having a cold water inlet and a hot water outlet for connection to the cold, and hot water lines of a faucet in a sink. The water heater includes a body with a passageway through which cold water travels, from the top towards the bottom, where it is fed into two separate chambers on opposed sides of a diaphragm. A first of the two chambers has no outlet, and the pressure of cold water therein presses against a first side of the diaphragm, while the second chamber includes an outlet to a further chamber having a heating element therein. The second chamber also includes a plunger, biased by a spring against a second side of diaphragm, and a plunger rod, which contacts an operating member of a microswitch.

Abstract: A device for saving water and energy is connected to an electric water heater either at the time of original manufacture or later adaption. The system of production of differentiated quantities of constant temperature of water. The device includes the use of hydrodeviators to control the level of the flow of water to and from the electric water heater. Attached to the system is a portion for the measuring of the water level within the water heater to prevent damage and to ensure the availability of hot water for users. The device also has a variety of necessary piping and conduits for the flow of water and/or air based on which position the hydrodeviators are set. The device allows for the connected water heater to produce water at a constant temperature even when there is a small daily water use.

Abstract: A heated fluid control valve with an electric heating element and a thermocouple disposed in a rotatable support shaft comprises a metallic flapper plate disposed in a fluid passageway and mounted on, and in thermal contact with, an elongated, rotatable metallic shaft that passes laterally through the fluid passageway. The shaft is heated by the internal heating element and, in turn, heats the flapper plate along the entire length of the shaft.

Abstract: A device for heating flowing media in a handpiece, particularly air or water for use in dentistry procedures, includes a structural unit for controllably heating a flowing medium disposed in a housing in a sealed manner such that an annular flow passage is formed between an interior wall of the housing and the structural unit. The structural unit includes a PTC resistor having end faces disposed between and in thermal and electrical contact with a pair of porous sintered metal heat exchanger elements at a non-zero angle to the direction of medium flow. Connectors on the opposing ends of the unit contact the sintered heat exchanger elements to flow connect the structural unit in a medium flow line and to electrically connect the PTC resistor to a heating control circuit.