Patents Assigned to Dropsa S.p.A.
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Patent number: 11828414Abstract: A generator of air/oil mist includes an accumulation chamber for a mist of particles of oil in air, and equipped with a first mist outlet and a nebulizer feeding into the accumulation chamber, the nebulizer including a first nozzle supplied with pressurised air, which features at least a first channel supplied with the pressurised air, each channel being equipped with an outlet on a surface of the first nozzle partially defining a first chamber axially symmetrical with respect to an axis, the channels being positioned to generate a rotation of the air fed into the first chamber around the said axis, the surface of the first nozzle featuring a section converging towards an outlet hole, the nebulizer featuring a second nozzle supplied with oil and feeding out into the first chamber so that the oil is suctioned via the second nozzle because of the air flowing through the first chamber.Type: GrantFiled: April 17, 2020Date of Patent: November 28, 2023Assignee: DROPSA S.p.A.Inventor: Walter Divisi
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Patent number: 11821582Abstract: A pump (1) comprising a lubricant reservoir (3) which feeds at least one pumping element (2), the reservoir (3) being delimited by a base (4) in correspondence with which, inside the reservoir (3) there is a rotating spatula (5) featured, equipped with at least one blade (5A) which, by rotating over the base (4), conveys the said lubricant towards an intake (2A) in the said pumping element (2) pushing the said lubricant through a plurality of passages (4A) made in the surface of the said base (4).Type: GrantFiled: September 29, 2022Date of Patent: November 21, 2023Assignee: DROPSA S.p.A.Inventor: Walter Divisi
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Patent number: 11098848Abstract: A system for distributing semisolid lubricant, including a semisolid lubricant tank and a high pressure pumping system that intermittently feeds, during a lubrication cycle, at least one first duct, the at least one first duct feeding a plurality of distributors adapted to sort the semisolid lubricant to a plurality of users; a controlled suction/delivery device, fluidly associated with the first duct, for controlled suction/delivery of a part of the semisolid lubricant conveyed by the first duct. The controlled suction/delivery device configured to suck a volume of semisolid lubricant from the first duct during a step of inactivity of the pumping system on the first duct, and to introduce the previously suctioned semisolid lubricant in the first duct during a step of activity of the pumping system on the first duct.Type: GrantFiled: October 5, 2017Date of Patent: August 24, 2021Assignee: DROPSA S.p.A.Inventor: Walter Divisi
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Patent number: 11020504Abstract: Environmental sanitizing device including a frame housing a disinfectant liquid reservoir and supporting a nozzle, the nozzle associated with a generation system of an air flow within which a plurality of disinfectant liquid particles are suspended to sanitize a closed environment in which the device can be positioned; the nozzle is movable with respect to the frame, and associated with positioning system controlled by a control unit for orientation of the nozzle with respect to at least two mutually perpendicular axes, preferably around a first vertical axis and around a second horizontal axis to automatically orient the nozzle in desired direction with respect to the frame during a sanitization step, the nozzle coupled with at least one distance detector able to determine distance between the nozzle and an obstacle facing the nozzle.Type: GrantFiled: June 7, 2018Date of Patent: June 1, 2021Assignee: DROPSA S.P.A.Inventor: Walter Divisi
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Patent number: 10704733Abstract: A pump with a reservoir of a lubricant, including a hollow body in which a piston, loaded by a pressing element, sealingly slides, at least a port for loading the lubricant in a compartment defined by the inner wall of the hollow body and by the piston, and at least a valve for exhausting air trapped in the compartment together with the lubricant during a loading step.Type: GrantFiled: July 27, 2017Date of Patent: July 7, 2020Assignee: DROPSA S.P.A.Inventor: Walter Divisi
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Patent number: 10539269Abstract: A minimal lubrication device including a lubricating fluid storing tank, conduit for supplying the lubricant pressurized to at least one modular element. The at least one modular element including a lubricating fluid conduit intercepted by flow regulator and compressed air conduit, such conduits fluidically connected to air and lubricant mixing element. The flow regulator including a shutter that can be at least partially housed in calibrated hole and movable between upper and lower stroke position ends. The calibrated hole in fluid communication, on one side, with pressurized lubricant delivery and, on the other side, with the mixing element. The shutter having at least one conical profile portion insertable in the calibrated hole. The conical profile portion has a surface groove facing a surface defining the calibrated hole at least when the shutter is in an intermediate position between the lower and upper stroke position ends.Type: GrantFiled: June 9, 2017Date of Patent: January 21, 2020Assignee: DROPSA S.P.A.Inventor: Walter Divisi
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Patent number: 10533704Abstract: A pneumatic immersion lubricant pump, including a primary piston sliding in a sealed manner in contrast to at least one spring inside a cylindrical body together with which the primary piston defines a chamber provided on an opposite side of the primary piston with respect to that where the at least one spring is positioned, a body of the pump including at least one channel in which an element projecting from the primary piston is slidably housed in a sealed manner. The body of the pump including a plurality of cylinders each equipped with a loading port open on the outside of the pump body. Each cylinder housing a secondary piston axially constrained to the primary piston. The projecting element and the channel defining a pressurization duct of the chamber.Type: GrantFiled: October 23, 2017Date of Patent: January 14, 2020Assignee: DROPSA S.P.A.Inventor: Walter Divisi
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Patent number: 10466128Abstract: An over-pressure indicator, including a cup-shaped body having, on its bottom, a hole inside which is sealably housed a mobile element loaded by a spring towards the bottom of the cup-shaped body, the mobile element facing an indicator sensitive part for communication with an area where pressure verification is wanted. The mobile element coupled with a signaller of a movement thereof. The spring pressed by a pre-loading ring nut screwed onto the cup-shaped body. The nut torsionally removably coupled with a calibration cap of the indicator. The calibration cap having at least one stop that, when it abuts against a portion of the cup-shaped body, limits further screwing of the nut thus determining pressure beyond which mobile element movement is allowed. The movement causing intervention of the indicator so by coupling the suitable calibration cap and indicator and screwing it in fully, setting the indicator intervention pressure is possible.Type: GrantFiled: September 21, 2017Date of Patent: November 5, 2019Assignee: DROPSA S.P.A.Inventor: Walter Divisi
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Patent number: 10465846Abstract: A monitoring device of an oil flow mixed with air, including a tubular element coupled with at least one first and one second photoelectric sensor that emit a radiation along a first and a second optical line respectively, the tubular element being at least partially transparent to the radiation, the first and the second photoelectric sensor being mounted on the tubular element so that the first and the second optical line are mutually angled.Type: GrantFiled: July 14, 2017Date of Patent: November 5, 2019Assignee: DROPSA S.P.A.Inventor: Walter Divisi
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Publication number: 20180353632Abstract: Environmental sanitizing device including a frame housing a disinfectant liquid reservoir and supporting a nozzle, the nozzle associated with a generation system of an air flow within which a plurality of disinfectant liquid particles are suspended to sanitize a closed environment in which the device can be positioned; the nozzle is movable with respect to the frame, and associated with positioning system controlled by a control unit for orientation of the nozzle with respect to at least two mutually perpendicular axes, preferably around a first vertical axis and around a second horizontal axis to automatically orient the nozzle in desired direction with respect to the frame during a sanitization step, the nozzle coupled with at least one distance detector able to determine distance between the nozzle and an obstacle facing the nozzle.Type: ApplicationFiled: June 7, 2018Publication date: December 13, 2018Applicant: DROPSA S.p.A.Inventor: Walter DIVISI
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Publication number: 20180119880Abstract: A pneumatic immersion lubricant pump, including a primary piston sliding in a sealed manner in contrast to at least one spring inside a cylindrical body together with which the primary piston defines a chamber provided on an opposite side of the primary piston with respect to that where the at least one spring is positioned, a body of the pump including at least one channel in which an element projecting from the primary piston is slidably housed in a sealed manner. The body of the pump including a plurality of cylinders each equipped with a loading port open on the outside of the pump body. Each cylinder housing a secondary piston axially constrained to the primary piston. The projecting element and the channel defining a pressurization duct of the chamber.Type: ApplicationFiled: October 23, 2017Publication date: May 3, 2018Applicant: DROPSA S.p.A.Inventor: Walter DIVISI
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Publication number: 20180100619Abstract: A system for distributing semisolid lubricant, including a semisolid lubricant tank and a high pressure pumping system that intermittently feeds, during a lubrication cycle, at least one first duct, the at least one first duct feeding a plurality of distributors adapted to sort the semisolid lubricant to a plurality of users; a controlled suction/delivery device, fluidly associated with the first duct, for controlled suction/delivery of a part of the semisolid lubricant conveyed by the first duct. The controlled suction/delivery device configured to suck a volume of semisolid lubricant from the first duct during a step of inactivity of the pumping system on the first duct, and to introduce the previously suctioned semisolid lubricant in the first duct during a step of activity of the pumping system on the first duct.Type: ApplicationFiled: October 5, 2017Publication date: April 12, 2018Applicant: DROPSA S.p.A.Inventor: Walter DIVISI
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Publication number: 20180087989Abstract: An over-pressure indicator, including a cup-shaped body having, on its bottom, a hole inside which is sealably housed a mobile element loaded by a spring towards the bottom of the cup-shaped body, the mobile element facing an indicator sensitive part for communication with an area where pressure verification is wanted. The mobile element coupled with a signaller of a movement thereof. The spring pressed by a pre-loading ring nut screwed onto the cup-shaped body. The nut torsionally removably coupled with a calibration cap of the indicator. The calibration cap having at least one stop that, when it abuts against a portion of the cup-shaped body, limits further screwing of the nut thus determining pressure beyond which mobile element movement is allowed. The movement causing intervention of the indicator so by coupling the suitable calibration cap and indicator and screwing it in fully, setting the indicator intervention pressure is possible.Type: ApplicationFiled: September 21, 2017Publication date: March 29, 2018Applicant: DROPSA S.p.A.Inventor: Walter DIVISI
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Publication number: 20180031179Abstract: A pump with a reservoir of a lubricant, including a hollow body in which a piston, loaded by a pressing element, sealingly slides, at least a port for loading the lubricant in a compartment defined by the inner wall of the hollow body and by the piston, and at least a valve for exhausting air trapped in the compartment together with the lubricant during a loading step.Type: ApplicationFiled: July 27, 2017Publication date: February 1, 2018Applicant: DROPSA S.p.A.Inventor: Walter DIVISI
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Patent number: 9423039Abstract: A progressive modular distributor device for the division between a plurality of outlets of a lubricant fluid, said distributor including a first and a second base between which are sandwiched at least three distributor modules. The bases being interconnected by tie rods which pass through openings in the modules. A first surface of at least one of the modules presents at least one projecting part integral with the module. A second surface of a second of the modules, resting on the first, presents a corresponding housing in which the projecting part is inserted. The projecting part and the housing shaped to prevent reciprocal movement of the first and second module at least along an axis perpendicular to an axis of the tie rods when the projecting part is inserted in the housing.Type: GrantFiled: October 31, 2013Date of Patent: August 23, 2016Assignee: DROPSA S.P.A.Inventor: Walter Divisi
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Patent number: 9303815Abstract: A lubrication device including a tank of fluid lubricant to be dispensed to a user position, a component for raising the pressure of the lubricant, a device for regulating the flow rate of the lubricant under pressure, and a distributor for enabling the lubricant flow to be conveyed to the user position with regulated flow rate, the lubricant flow rate regulator device being provided with a lubricant flowmeter which reads the flow rate regulated by the regulator device.Type: GrantFiled: February 25, 2013Date of Patent: April 5, 2016Assignee: DROPSA S.P.A.Inventor: Walter Divisi
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Patent number: 9157576Abstract: A lubrication device including a tank of fluid lubricant to be dispensed to a user position, a component for raising the pressure of the lubricant, a device for regulating the flow rate of a pressurized lubricant, and a distributor for enabling the lubricant flow to be conveyed to the user position with regulated flow rate. The regulating device including a body provided at least with one feed channel and one outflow channel put into communication by an aperture within the interior of which a valving element is movable provided with a perimetral lateral surface in which at least one window is provided in communication with a free end of the valving element.Type: GrantFiled: February 25, 2013Date of Patent: October 13, 2015Assignee: DROPSA S.P.A.Inventor: Walter Divisi
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Patent number: 9127808Abstract: A minimal lubrication device including a storage reservoir for a lubricant fluid and a pump for the lubricant, the pump being of high pressure type with its delivery port connected to at least one modular element adapted to mix a compressed air flow with the lubricant. The modular element presenting a mixer element fed with a compressed air flow into which an outlet of a flow regulator fed by the lubricant originating from the pump opens.Type: GrantFiled: November 23, 2010Date of Patent: September 8, 2015Assignee: DROPSA S.P.A.Inventor: Walter Divisi
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Patent number: 8881871Abstract: A minimal lubrication device including a lubricant fluid storage reservoir and a pump for the lubricant, the pump being a high pressure pump with a delivery side connected to at least one modular element arranged to mix a compressed air flow with the lubricant, the modular element presenting a mixer element fed with a compressed air flow into which an outlet opens of a needle flow regulator fed by the lubricant originating from the pump. The module includes a compensator device which maintains the oil quantity dispensed by the flow regulator constant even if the pressure on the user side changes.Type: GrantFiled: July 30, 2011Date of Patent: November 11, 2014Assignee: Dropsa S.p.A.Inventor: Walter Divisi
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Patent number: 8844681Abstract: A device for oil or fluid grease lubrication, including a reservoir able to house a determined quantity of lubricant, a pump arranged to draw the lubricant from the reservoir and to feed it under pressure to a delivery port to which a lubricant distribution pipe can be connected, a control unit arranged to regulate the pump operation, and a sensor for sensing the lubricant level within the reservoir. The level sensor is an infrared sensor.Type: GrantFiled: November 23, 2010Date of Patent: September 30, 2014Assignee: Dropsa S.p.A.Inventor: Walter Divisi