SIT LA PRECISA S.P.A. CON SOCIO UNICO Patent applications |
Patent application number | Title | Published |
20120222667 | FIREPLACE INCLUDING A SAFETY PROXIMITY WARNING SYSTEM - A fireplace is provided, in which a flame can be lit. The fireplace including a warning system, which includes a proximity sensor to detect the presence of object within an active volume, the volume surrounds at least a portion of the fireplace. The system also includes an alarm device to emit an alarm signal, a clock to calculate a time elapsed since the switching off of the fireplace, and a processing unit receiving as input data from the clock and the proximity sensor, and outputting command signals to the alarm device. The alarm device is activated by the processing unit to generate an alarm signal when an object is detected by the proximity sensor as entering the active volume and the fireplace has been switched off since no later than a first pre-defined time interval. Also provided is a method for warning when an object enters the active volume of a fireplace. | 09-06-2012 |
20120160345 | VALVE UNIT FOR CONTROLLING THE DELIVERY OFA COMBUSTIBLE GAS, IN PARTICULAR FOR DELIVERY VIA A GAS METERING APPARATUS, AND GAS METER INCLUDING SAID VALVE UNIT - A valve unit for controlling the delivery of a combustible gas, in particular for delivery via a gas metering apparatus including a main gas through-flow pipe ( | 06-28-2012 |
20120160186 | DEVICE FOR CONTROLLING THE SUPPLY OF FUEL GAS TO A BURNER , IN PARTICULAR FOR WATER HEATER APPLIANCES - A device for controlling a gas supply to a burner includes a main duct, which is provided with at least one main valve including a valve seat and associated shutter with a control for opening the seat in opposition to a resilient recall member. A pilot duct leads from the main duct to supply a pilot burner, the main duct includes a magnetic thermoelectric safety unit which is manually or automatically armed, acting on the pilot duct to enable gas to flow to the pilot burner when armed. The pilot duct includes a pressure regulator having a shutter with a membrane control, the membrane subject to pressure regulated by the regulator and to a calibration pressure determined in a calibration chamber of the regulator. The device includes a fluid connector between the calibration chamber and the main valve to provide a pressure signal correlated with the gas supply pressure. | 06-28-2012 |
20110226355 | DEVICE FOR CONTROLLING THE SUPPLY OF A COMBUSTIBLE GAS TO A BURNER APPARATUS - A device for controlling a combustible gas supply to a burner is provided, which includes first and second servovalves, having respective valve seats associated with a corresponding shut-off mechanism, which include respective first and second control solenoid valves with an electromagnetic operating device that controls the opening/closing of the corresponding servovalve. The solenoid valves act to indirectly control the corresponding servovalve's respective shut-off mechanism. The pipes of the control are in communication with the main pipe through an auxiliary bleed pipe. A pilot pipe is branched from the auxiliary pipe to supply a pilot burner, and a thermoelectric magnetic unit with a knob is provided on the auxiliary pipe, which allows gas to flow towards the pilot burner when the unit is activated, while simultaneously shutting off the flow of gas towards the servovalve control circuit. The device includes a control mechanism, controlled by the knob, which controls gas flow. | 09-22-2011 |
20110217664 | GAS BURNER APPARATUS WITH PRE-MIXING - A gas burner apparatus with pre-mixing includes a mixing device for mixing an air/gas mixture which is intended to be conveyed to the intake section of a fan unit whose delivery is conveyed to a combustion head of the burner. The mixing device including a plurality of ducts, each of which has a region in the form of a Venturi duct with contiguous portions which are convergent/divergent, with respect to the direction of flow, and with a restricted duct cross-section defined between the convergent portion and the divergent portion, there being conveyed in each convergent portion an air flow which is intended to be mixed with a gas flow which is introduced into the duct at the restricted cross-section, the air/gas mixture being conveyed through the divergent portion of the duct to the intake section of the fan unit. Each duct of the plurality is defined by the engagement of at least a first and a second mutually separate burner region along a mutual engagement profile, there being carried on each of the burner regions corresponding, separate portions of each of the ducts, at least a first fluid-tight sealing element being provided between the burner regions along the engagement profile in order to prevent gas and/or air from being drawn in with respect to the ducts. The at least first sealing element is interposed between the burner regions at the restricted cross-section of each of the Venturi ducts of the plurality of ducts; the at least first sealing element has through-holes which define the restricted cross-section of the corresponding Venturi duct in at least some of the plurality of ducts, as a result of the engagement of the burner regions along the engagement profile and is interchangeable with at least a second sealing element which has corresponding through-holes, whose overall size for the relevant cross-sections is different from the overall size for the cross-sections relating to the corresponding holes of the first sealing element, so as to vary the overall cross-section defined by the plurality of holes of the ducts, with at least the first element being interchanged with at least the second sealing element, and consequently to control the burner in accordance with the thermal power required and/or the flow resistances which exist in the ducts for supplying the air/gas mixture to the burner. | 09-08-2011 |
20110101674 | SYSTEM FOR THE LEAKTIGHT CONNECTION OF VALVE UNITS TO RESPECTIVE PIPES, IN PARTICULAR FOR USE WITH COMBUSTIBLE GASES - A system for the leaktight connection of a valve unit to a respective pipe, is provided. The valve unit includes a gas through-flow section, a threaded male attachment element being formed integrally with the valve unit and having an axial through cavity defining the gas through-flow section, for leaktight clamping by a pipe-fixing ring-nut connector which can be screwed onto the male threaded portion of the attachment element. The system includes a second leaktight connector which can be put into operation as an alternative to the ring-nut connector. The second connector including at least one axial retaining element which can be releasably restrained on the valve unit in the region of the threaded portion of the male attachment element, in a manner such that the pipe is restrained axially relative to the valve unit. | 05-05-2011 |
20110003260 | METHOD AND A DEVICE FOR CONTROLLING THE FEED OF A COMBUSTIBLE GAS TO A BURNER APPARATUS - A method is provided for controlling the feed of a combustible gas by a valve device placed in a feed pipe which has a gas inlet section and a gas outlet section. The device includes a valve seat in the pipe associated with a membrane-operated plug and a device for returning the plug to a position in which the valve seat is shut off. The method includes the steps of creating a pressure difference in a section of the pipe downstream of the plug with respect to the direction of flow, by a constriction in the pipe having a predetermined cross section, the pressure difference being defined by a first pressure upstream of the constriction and a second pressure downstream of the constriction; collecting the signal formed by the second pressure downstream of the constriction and making the second pressure act on the side of the membrane opposite that on which the first pressure acts; and generating a regulatable load on the membrane of the membrane operating system. | 01-06-2011 |
20100291495 | BURNER, SPECIFICALLY A PREMIX BURNER - A burner is provided and includes a cylindrical burner head housed in a combustion chamber of a heating apparatus, on which an air and gas mixture is burnt, the head including a cylindrical shell with through apertures, fixed at a first axial end by a connecting flange to a shutter element intended to seal the combustion chamber, while its opposite axial end has a solid end wall which seals the head, an element for distributing the air and gas mixture, positioned inside the burner head and intended to distribute the flow of combustible mixture reaching the burner on to the burner head. The distributor element includes a plate-like portion extending as a continuation of the connecting flange and extending substantially in an orthogonal direction to the axial direction of extension of the cylindrical head, the plate-like portion having through apertures for distributing the mixture to the burner head. | 11-18-2010 |