Patents by Inventor Mircea V. RASA
Mircea V. RASA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9922870Abstract: The invention relates to a method for applying an image of an electrically conductive material onto a recording medium. In the method, the recording medium is heated and the electrically conductive material is jetted onto the recording medium. The invention further relates to a device for ejecting droplets of an electrically conductive fluid onto a recording medium.Type: GrantFiled: September 16, 2013Date of Patent: March 20, 2018Assignee: OCE-TECHNOLOGIES B.V.Inventors: Mircea V. Rasa, Marcel Slot
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Patent number: 9593403Abstract: In a method for ejecting droplets of a molten metal, the metal is an alloy including a first metal and a second metal. During a jetting operation, the second metal segregates from the first metal. A method of using such alloy is also disclosed herein.Type: GrantFiled: April 7, 2015Date of Patent: March 14, 2017Assignee: OCE-TECHNOLOGIES B.V.Inventors: Hendrikus J. H. Rheiter, Mircea V. Rasa
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Patent number: 9456502Abstract: The present invention relates to a method for ejecting droplets of a molten metal. In the present invention, the metal is a composition comprising a first metal and a second element, wherein the second element is Si. In jetting operation, the second elements may prevent contaminants present in the composition from precipitating and clogging the orifice. The present invention further relates to the use of such composition.Type: GrantFiled: July 8, 2015Date of Patent: September 27, 2016Assignee: OCE-TECHNOLOGIES B.V.Inventor: Mircea V. Rasa
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Publication number: 20160256888Abstract: A jetting device comprising: a fluid chamber connected to a nozzle and containing a fluid to be jetted, and an electrically conductive medium; a magnetic field source arranged to create a magnetic field in the electrically conductive medium; a pair of electrodes contacting the electrically conductive medium; and a controller arranged to control a flow of an electric current through the electrodes and the electrically conductive medium, characterized in that the pair of electrodes is configured to constitute a sonode for generating an ultrasonic acoustic wave in the electrically conductive medium, and the controller is arranged to activate the sonode during a time at which the jetting device does not perform a jetting operation.Type: ApplicationFiled: February 17, 2016Publication date: September 8, 2016Applicant: OCE-TECHNOLOGIES B.V.Inventors: Mircea V. RASA, Cornelis J. GROENENBERG
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Patent number: 9393581Abstract: A method for controlling a temperature of a jetting device, the jetting device being configured to jet droplets of a fluid at a high temperature, the fluid comprising an electrically conductive fluid, wherein at least a part of the fluid is positioned in a magnetic field, includes heating the jetting device to an operating temperature, being defined as the temperature suitable for jetting droplets, using a heat jetting droplets by providing an electrical actuation current in the part of the fluid positioned in the magnetic field, thereby generating a force in the conductive fluid; determining upcoming jetting conditions, the upcoming jetting conditions being defined as the jetting conditions corresponding to droplets to be jetted at a time (t1) which is later than the present time (t0); determining settings for the heat based on the determined upcoming jetting conditions; controlling the heating of the jetting device using the heat in accordance with the determined settings.Type: GrantFiled: November 22, 2013Date of Patent: July 19, 2016Assignee: OCE-TECHNOLOGIES B.V.Inventors: Mircea V. Rasa, Marcel Slot, Henricus C. M. Van Genuchten, Wilhelmus P. J. Classens
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Publication number: 20160021760Abstract: The present invention relates to a method for ejecting droplets of a molten metal. In the present invention, the metal is a composition comprising a first metal and a second element, wherein the second element is Si. In jetting operation, the second elements may prevent contaminants present in the composition from precipitating and clogging the orifice. The present invention further relates to the use of such composition.Type: ApplicationFiled: July 8, 2015Publication date: January 21, 2016Applicant: OCE-TECHNOLOGIES B.V.Inventor: Mircea V. RASA
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Patent number: 9227150Abstract: In a device for ejecting droplets of an electrically conductive fluid, a vapor suppressing device is provided to suppress vapor of the electrically conductive fluid. The vapor suppressing device includes an electrode, adapted to provide a direct voltage. Further, a method for suppressing vapor of an electrically conductive fluid in a device for ejecting droplets of an electrically conductive fluid is provided.Type: GrantFiled: September 24, 2013Date of Patent: January 5, 2016Assignee: OCE-TECHNOLOGIES B.V.Inventor: Mircea V. Rasa
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Publication number: 20150299839Abstract: In a method for ejecting droplets of a molten metal, the metal is an alloy including a first metal and a second metal. During a jetting operation, the second metal segregates from the first metal. A method of using such alloy is also disclosed herein.Type: ApplicationFiled: April 7, 2015Publication date: October 22, 2015Applicant: OCE-TECHNOLOGIES B.VInventors: Hendrikus J.H. RHEITER, Mircea V. RASA
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Publication number: 20140217134Abstract: The invention relates to a method for maintaining and/or restoring the jetting stability in a jetting device, the jetting comprising fluid chamber body having arranged therein an orifice, the jetting device being configured to comprise a quantity of an electrically conductive fluid. The jetting device comprises actuation means, comprising a magnetic field generating means and an electrical current generating means for, in operation, applying an actuation pulse to the electrically conductive fluid. The method for maintaining and/or restoring the jetting stability comprises applying an maintenance pulse to at least a part of the electrically conductive fluid. The invention further relates to a jetting device, employing the described method.Type: ApplicationFiled: April 4, 2014Publication date: August 7, 2014Applicant: OCE-TECHNOLOGIES B.V.Inventor: Mircea V. RASA
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Patent number: 8721032Abstract: The invention relates to a method for monitoring a performance of a jetting device, the jetting device being configured to expel droplets of an electrically conductive fluid wherein at least a part of the conductive fluid is positioned in a magnetic field, the method comprising providing an electrical actuation current in the part of the conductive fluid positioned in the magnetic field, thereby generating a pressure wave in the conductive fluid; characterized in that the method further comprises detecting a resulting electrical current, which electrical current is induced by a residual pressure wave in the part of the conductive fluid positioned in the magnetic field, thereby obtaining a detection signal and based on the detection signal determining whether the jetting device is in an operative state. The invention further relates to a printing device, employing the described method.Type: GrantFiled: September 4, 2012Date of Patent: May 13, 2014Assignee: Oce-Technologies B.V.Inventors: Evgenij V. Kuznetsov, Mircea V. Rasa
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Publication number: 20140099788Abstract: The invention relates to a method for applying an image of an electrically conductive material onto a recording medium. In the method, the recording medium is heated and the electrically conductive material is jetted onto the recording medium. The invention further relates to a device for ejecting droplets of an electrically conductive fluid onto a recording medium.Type: ApplicationFiled: September 16, 2013Publication date: April 10, 2014Applicant: OCE-TECHNOLOGIES B.V.Inventors: Mircea V. RASA, Marcel SLOT
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Publication number: 20140076988Abstract: A method for controlling a temperature of a jetting device, the jetting device being configured to jet droplets of a fluid at a high temperature, the fluid comprising an electrically conductive fluid, wherein at least a part of the fluid is positioned in a magnetic field, includes heating the jetting device to an operating temperature, being defined as the temperature suitable for jetting droplets, using a heat jetting droplets by providing an electrical actuation current in the part of the fluid positioned in the magnetic field, thereby generating a force in the conductive fluid; determining upcoming jetting conditions, the upcoming jetting conditions being defined as the jetting conditions corresponding to droplets to be jetted at a time (t1) which is later than the present time (t0); determining settings for the heat based on the determined upcoming jetting conditions; controlling the heating of the jetting device using the heat in accordance with the determined settings.Type: ApplicationFiled: November 22, 2013Publication date: March 20, 2014Applicant: OCE-TECHNOLOGIES B.V.Inventors: Mircea V. RASA, Marcel SLOT, Henricus C. M. VAN GENUCHTEN, Wilhelmus P.J. CLASSENS
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Publication number: 20140021268Abstract: In a device for ejecting droplets of an electrically conductive fluid, a vapor suppressing device is provided to suppress vapor of the electrically conductive fluid. The vapor suppressing device includes an electrode, adapted to provide a direct voltage. Further, a method for suppressing vapor of an electrically conductive fluid in a device for ejecting droplets of an electrically conductive fluid is provided.Type: ApplicationFiled: September 24, 2013Publication date: January 23, 2014Applicant: OCE-TECHNOLOGIES B.V.Inventor: Mircea V. RASA
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Patent number: 8444028Abstract: In a jetting device for ejecting droplets of a relatively hot fluid, a fluid chamber body is made of a heat resistant material and an inner surface of the fluid chamber body, the inner surface defining a fluid chamber of the jetting device, is wettable by the fluid. This configuration provides that no additional force needs to be applied for forcing the fluid into an orifice, i.e. a narrow tube leading towards a nozzle.Type: GrantFiled: May 19, 2011Date of Patent: May 21, 2013Assignee: Oce-Technologies B.V.Inventors: Mircea V. Rasa, Ronald Berkhout, Wilhelmus P. J. Classens, Henricus C. M. Van Genuchten, Evgenij V. Kuznetsov
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Publication number: 20130021404Abstract: The invention relates to a method for monitoring a performance of a jetting device, the jetting device being configured to expel droplets of an electrically conductive fluid wherein at least a part of the conductive fluid is positioned in a magnetic field, the method comprising providing an electrical actuation current in the part of the conductive fluid positioned in the magnetic field, thereby generating a pressure wave in the conductive fluid; characterized in that the method further comprises detecting a resulting electrical current, which electrical current is induced by a residual pressure wave in the part of the conductive fluid positioned in the magnetic field, thereby obtaining a detection signal and based on the detection signal determining whether the jetting device is in an operative state. The invention further relates to a printing device, employing the described method.Type: ApplicationFiled: September 4, 2012Publication date: January 24, 2013Applicant: OCE-TECHNOLOGIES B.V.Inventors: Evgenij V. KUZNETSOV, Mircea V. RASA
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Publication number: 20110233239Abstract: In a jetting device for ejecting droplets of a relatively hot fluid, a fluid chamber body is made of a heat resistant material and an inner surface of the fluid chamber body, the inner surface defining a fluid chamber of the jetting device, is wettable by the fluid. This configuration provides that no additional force needs to be applied for forcing the fluid into an orifice, i.e. a narrow tube leading towards a nozzle.Type: ApplicationFiled: May 19, 2011Publication date: September 29, 2011Applicant: OCE-TECHNOLOGIES B.V.Inventors: Mircea V. RASA, Ronald BERKHOUT, Wilhelmus P. J. CLASSENS, Henricus C.M. VAN GENUCHTEN, Evgenij V. KUZNETSOV