Abstract: A gas delivery apparatus has a delivery pipe that extends from a gas entrance end to a gas delivery end along which an entrance component, a pressure regulator and a flow rate regulator are present, coordinated with each other in order to supply on each occasion the desired quantity of gas to a burner of an apparatus fed with gas. or p with an air-gas mixture.

Abstract: Pincers for removing residual dental roots by the application of a contrary force on the mandible and maxilla on a pre-fixed screw. It is constructed in such a manner as to enable the strength of the operator to be multiplied and the final movement of the pincers to be reduced. The operator will need to apply minimal force and thus the procedure becomes simple and safe, thereby preserving the underlying bone structure and facilitating implant osseointegration. Likewise the device can be easily sterilized and assembled/dismantled easily because of the small number of moving parts. Further, there is no need for the mouth to be opened so widely, which results in less movement and less trauma caused by excessive opening of the patient's mouth, and it adapts to the irregular profile of support on the dental arch.

Abstract: A control system of a water heater apparatus with a combustible gas burner is presented where the apparatus includes a pilot burner with an intermittent-type pilot flame, a main burner, a pilot valve and a main valve, a control unit, a flame detection electrode, introduced into the flame of the pilot burner, and which is configured to conduct an ionization current. The control unit is configured to measure/detect a variation involving increase/decrease of the intensity of ionization current detected, the variation in intensity of ionization current being generated during the change between a first condition, in which the ionization current identifies the ignition state of only the pilot burner, and a second condition, in which the ionization current identifies the simultaneous ignition state of the pilot burner and the main burner so that, by detection of the measurement/variation of ionization current, the effective ignition of the main burner is recognized.

Abstract: An apparatus for heating water comprises a main burner, a pilot burner, a valve assembly with a main valve and a pilot valve having a shutter, a magnetic thermoelectric safety assembly with a thermocouple device holding the pilot valve open in the presence of a flame in the pilot burner, a button member mounted on a rod that is slidingly guided in the valve assembly and an electrical ignition member supplied via an electrical connection circuit, a switch device in the circuit being designed to be switched by means of the button member so as to close the electrical circuit when said button member is pressed in order to carry out actuation of the magnetic assembly so as to open the passage of gas through the pilot valve towards the pilot burner and to ignite the pilot flame by means of the sparks generated by the ignition member.

Abstract: The invention relates to a fusion protein containing a selective cell death-inducing enzyme system for use in the therapy and/or treatment of cancer and tumors in humans and animals, a process, and its use.

Abstract: A method of controlling a gas powered water heater includes attempting to pick a main gas valve of the main burner using a first pick method. The first pick method includes closing a switch of a valve pick system to couple a capacitor of the valve pick system to the main gas valve for a first length of time to discharge energy stored in the capacitor to the main gas valve, and opening the switch of the valve pick system after the energy stored in the capacitor is discharged to the main gas valve. The controller determines if the main gas valve is open after using the first pick method. When the controller determines the main gas valve is not open, the controller attempts to pick the main gas valve using a second pick method different than the first pick method.

Abstract: Apparatus to deliver gas having a delivery pipe that extends from an entrance end to a gas delivery end along which there are, one after the other, an entrance component, a pressure regulator and a flow rate regulator coordinated with respect to each other to supply on each occasion the desired quantity of gas to a burner of an apparatus fed by gas, or by a mixture of air/gas.

Abstract: A processor for a controller of a water heater is configured to receive water heater control parameters and an output from a sensor indicating a measured temperature of water in the water heater. The processor is also configured to determine whether to enter an anti-stacking control mode or to enter a demand anticipation control mode. In the anti-stacking control mode the processor is configured to initiate a call for heat when the measured temperature reaches a trigger temperature, calculate a burner on delay value and set a second timer with the calculated value, and calculate a reduced activation time. In the demand anticipation control mode the processor is configured to increase the variable offset based on a frequency of the demand anticipation control mode being activated, initiate a call for heat, and control, based on the reduced activation time or the increased offset value, the burner.

Abstract: Pincers for removing residual dental roots by the application of a contrary force on the mandible and maxilla on a pre-fixed screw. It is constructed in such a manner as to enable the strength of the operator to be multiplied and the final movement of the pincers to be reduced. The operator will need to apply minimal force and thus the procedure becomes simple and safe, thereby preserving the underlying bone structure and facilitating implant osseointegration. Likewise the device can be easily sterilized and assembled/dismantled easily because of the small number of moving parts. Further, there is no need for the mouth to be opened so widely, which results in less movement and less trauma caused by excessive opening of the patient's mouth, and it adapts to the irregular profile of support on the dental arch.

Abstract: A reverse compression cycle machine includes an evaporator, a compressor and a condenser arranged in series along a path of a working fluid in the machine, further including a boundary layer turbine placed between the condenser and the evaporator. The turbine includes a set of power disks mounted on a shaft which rotates inside a volume of a rotor casing, an inlet opening for introducing a working fluid in a stator volume, a stator nozzle, which accelerates the flow in a direction that is tangential to the power disks, and a discharge of a working fluid. The rotor casing includes a drain of a liquid fraction of the working fluid from the peripheral part of the power disks in order to avoid its concentration in the peripheral part of the volume of the rotor casing.

Abstract: An apparatus for heating water comprises a main burner, a pilot burner, a valve assembly with a main valve and a pilot valve having a shutter, a magnetic thermoelectric safety assembly with a thermocouple device holding the pilot valve open in the presence of a flame in the pilot burner, a button member mounted on a rod that is slidingly guided in the valve assembly and an electrical ignition member supplied via an electrical connection circuit, a switch device in the circuit being designed to be switched by means of the button member so as to close the electrical circuit when said button member is pressed in order to carry out actuation of the magnetic assembly so as to open the passage of gas through the pilot valve towards the pilot burner and to ignite the pilot flame by means of the sparks generated by the ignition member.

Abstract: A device for controlling a combustible gas supply to a heating apparatus burner includes: a valve with a respective valve seat which is associated with a corresponding closure member provided with a respective control rod for opening the valve seat, a system for amplifying movement of the control rod which has a snap-fit spring which acts on the rod and a pushing element which in turn acts on the spring, a first end of a lever acts on the pushing element which is hinged at a fulcrum location which is positioned at an opposing second end of the lever, actuator which moves the lever, operationally associated with the lever in a position between the opposing lever ends to control the lever about the fulcrum location resulting in movement of the closure member away from and towards the valve seat, the actuator comprising a linear actuator element with converse piezoelectric effect.

Abstract: The present disclosure relates to assisting patients with treatment and recovery to remain in an upright position. More specifically, the present disclosure is a device that may be used to support patients in an upright position that may be used with any surface. Further, the device may allow the users to vary the angle of support and may be controlled through a simple interface, such as a button, remote control, or controls on an electronic interface device.

Abstract: A method for modulating a valve regulating the flow rate of gas towards a burner is presented. The valve with the associated closure member configured to operate with a predetermined characteristic curve, the flow rate delivered being proportionally related to the strength of a first current signal sent to the modulator such that the flow rate can be modulated, using the proportionality, within a range of modulation between a maximum flow rate and a minimum flow rate. To deliver controlled gas flow rates that are below the minimum flow rate, the modulator is driven with a second PWM voltage signal capable of generating a particular second PWM current signal, to move the closure member of the valve according to the second signal. First and second time intervals correspond to successive durations of high signal and low signal, respectively, the sum being equal to a period of the second signal.

Abstract: The present invention concerns an indication apparatus and corresponding method to indicate the output level of a pilot flame in a gas appliance provided with a thermocouple suitable to convert the energy generated by a pilot flame, which receives gas from a pilot valve, into electric voltage to power an electro valve of the pilot valve and to keep the latter open.

Abstract: A combustible gas heating apparatus includes: a main burner arranged in a combustion chamber of the apparatus, a pilot burner for generating a pilot flame for igniting it, a valve group comprising a main valve arranged on a main duct, and a pilot valve arranged thereon, upstream of the main valve, for supplying gas to the pilot burner, a system for controlling gas to the main and pilot burners, including an electronic control unit operatively associated with the main and pilot valves, a thermal safety device actuable in the presence of inflammable vapors near the apparatus, to safely extinguish the main burner when a predetermined temperature threshold has been exceeded, the pilot burner configured as a continuous pilot burner having a permanent flame, the pilot and main valves being electrically-operated valves, an auxiliary buffer battery configured to power the electronic control.

Abstract: A control system of a water heater apparatus with a combustible gas burner is presented where the apparatus includes a pilot burner with an intermittent-type pilot flame, a main burner, a pilot valve and a main valve, a control unit, a flame detection electrode, introduced into the flame of the pilot burner, and which is configured to conduct an ionization current. The control unit is configured to measure/detect a variation involving increase/decrease of the intensity of ionization current detected, the variation in intensity of ionization current being generated during the change between a first condition, in which the ionization current identifies the ignition state of only the pilot burner, and a second condition, in which the ionization current identifies the simultaneous ignition state of the pilot burner and the main burner so that, by detection of the measurement/variation of ionization current, the effective ignition of the main burner is recognized.

Abstract: A safety system for a gas apparatus (100) for heating water, the gas apparatus comprising a tank (1) for containing water and a first gas burner (2) for heating the water contained inside the tank (1).

Abstract: Control system for controlling the pilot flame of a combustible gas device, which includes a pilot burner, a main burner, and a valve assembly, which includes a pilot valve that allows/intercepts a flow of gas directed towards the pilot burner, and a main valve that allows/intercepts a gas flow to the main burner, the valve assembly moveable between a closed OFF state, a PILOT state, and an ON state, where gas flows to the main burner. The control system includes a detection device that generates a state signal, and a control unit including a timer, the control unit is operatively connected to the detection device to receive a state signal and to an actuator to close the valve. The control unit starts the timer when the state signal represents the PILOT state, and actuates the actuator for the pilot valve to close it when the timer reaches a preset limit.

Abstract: An electric motor, particularly for fans for combustion air, or for an air/combustion gas mixture, in gas burners, includes a stator assembly, which in turn includes a lamination pack provided with a perimetric frame with at least one pair of pole shoes, each one of which is constituted by a winding body and an expanded head; a frame for supporting the lamination pack; and a spool of conducting wire for each pole shoe, with the interposition of an insulating support. The assembly further includes elements for reducing rotational friction, for the driving shaft of a rotor, and accommodation parts for the elements for reducing rotational friction. The motor also includes a rotor with a driving shaft, wherein the perimetric frame and pole shoes are mutually distinct elements joined with fixing components.