Patents by Inventor Dirk Theodorus Andreas van Asseldonk
Dirk Theodorus Andreas van Asseldonk 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: 11969550Abstract: A gas flow reversing element is disclosed that includes a main piece comprising an inflow region, a nozzle region and a mixing region, and further includes a branching piece. The inflow region connects a pressure connector to a closable outlet opening in the mixing region, the branching piece connecting the nozzle region to a line connector. With the outlet opening opened, gas flow flowing along a first flow path from the pressure connector through the nozzle to the outlet opening, generates a gas flow in the branching piece flowing along a second flow path from the line connector to the outlet opening. The reversing element further includes a bypass, closable by at least one closing element, connecting the pressure connector and the line connector so that a gas flow can flow along a third flow path via the inflow region, and bypass the nozzle via the bypass.Type: GrantFiled: November 19, 2020Date of Patent: April 30, 2024Assignee: Ventinova Technologies B.V.Inventors: Dietmar Enk, Dirk Theodorus Andreas Van Asseldonk
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Patent number: 11642480Abstract: The present invention relates to a plurality of ventilation devices, to ventilation devices having visualization apparatuses, and to methods for operating the ventilation devices. The intent is to minimize the energy input into the at least one airway of a patient as a result of the ventilation.Type: GrantFiled: January 25, 2018Date of Patent: May 9, 2023Assignee: Ventinova Technologies B.V.Inventors: Dietmar Enk, Thomas Heinrich Barnes, Dirk Theodorus Andreas van Asseldonk
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Publication number: 20230043873Abstract: The present invention relates to a plurality of ventilation devices, to ventilation devices having visualization apparatuses, and to methods for operating the ventilation devices. The intent is to minimize the energy input into the at least one airway of a patient as a result of the ventilation.Type: ApplicationFiled: August 29, 2022Publication date: February 9, 2023Inventors: Dietmar Enk, Thomas Heinrich Barnes, Dirk Theodorus Andreas van Asseldonk
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Publication number: 20210069435Abstract: A gas flow reversing element is disclosed that includes a main piece comprising an inflow region, a nozzle region and a mixing region, and further includes a branching piece. The inflow region connects a pressure connector to a closable outlet opening in the mixing region, the branching piece connecting the nozzle region to a line connector. With the outlet opening opened, gas flow flowing along a first flow path from the pressure connector through the nozzle to the outlet opening, generates a gas flow in the branching piece flowing along a second flow path from the line connector to the outlet opening. The reversing element further includes a bypass, closable by at least one closing element, connecting the pressure connector and the line connector so that a gas flow can flow along a third flow path via the inflow region, and bypass the nozzle via the bypass.Type: ApplicationFiled: November 19, 2020Publication date: March 11, 2021Inventors: Dietmar Enk, Dirk Theodorus Andreas Van Asseldonk
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Patent number: 10857318Abstract: Gas flow reversing element (1) for the use of a gas supply (14) under excess pressure, in particular inspiratory gases, for selectively generating a gas flow (8) from or to a line connector (6) which can in particular be connected to an airway of a patient, said gas flow reversing element (1) being designed as a main piece (2), the main piece (2) at least comprising an inflow region (9), a nozzle region (15) and a mixing region (16), and further a branching piece (3), the inflow region (9) connecting a pressure connector (4), for connection to the gas supply (14), to at least one closable outlet opening (5) arranged in the mixing region (16), and the branching piece (3) connecting the nozzle region (15) of the main piece (2) to the line connector (6), wherein a nozzle (7), particularly an injector nozzle, is configured and arranged in the nozzle region (15) in such a way that, a gas flow (8) flowing along a first flow path (20) through the main piece (2) from the pressure connector (4) subsequently through thType: GrantFiled: July 10, 2014Date of Patent: December 8, 2020Assignee: Ventinova Technologies B.V.Inventors: Dietmar Enk, Dirk Theodorus Andreas Van Asseldonk
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Patent number: 10293130Abstract: Disclosed is a transtracheal ventilation device including at least one base plate with an opening and comprising a tubular connecting part with a channel and a central axis. The base plate and the connecting part are connected to each other such that a lumen, when inserted into the device, extends into the channel through the opening along the central axis to a fixing element (a fastening). The fixing element can be pivoted relative to the central axis. The fixing element is arranged at a distance of at least 5 millimeters along the central axis from a base plate face which faces away from the fixing element, and the opening has an inner diameter which is at least 20% larger than an outer diameter of the lumen at least on a first plane perpendicular to the central axis.Type: GrantFiled: November 11, 2011Date of Patent: May 21, 2019Assignee: Ventinova Technologies B.V.Inventors: Dirk Theodorus Andreas van Asseldonk, Mark Hogerwerf
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Patent number: 9873079Abstract: A process capturing CO2 from a CO2-containing gas stream, contacting a CO2-containing gas stream with a CO2-absorbing agent in an absorption step in a vessel with maximum temperature T1 resulting in absorption of CO2. The CO2 absorbing agent comprising a polymer dissolved in an aqueous medium, the polymer, a thermoresponsive copolymer, comprising amine monomer distributed through the copolymer, subjecting the CO2-containing absorbing agent to a desorption step in a vessel with maximum temperature T2, releasing CO2, wherein T1 is below LCST of the thermoresponsive polymer at maximum CO2 loading, and T2 is above LCST of the thermoresponsive polymer at minimum CO2 loading. CO2 absorbing agent comprises amine component dissolved in the aqueous medium. Use of the specific polymer dissolved in an aqueous medium at T1, wherein amine monomer, distributed through the copolymer with an amine component, improves net CO2 sorption and high absorption speed, allowing a relatively small absorption reactor.Type: GrantFiled: March 12, 2014Date of Patent: January 23, 2018Assignee: CarbonOrO B.V.Inventors: Johannes Petrus Aldegonda Custers, Matheus Theodorus De Groot, Antoon Jacob Berend Ten Kate, Dirk Theodorus Andreas Van Asseldonk, Johannes Theodorus Faustinus Keurentjes
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Patent number: 9714313Abstract: The present invention relates to an ampholytic polymeric system obtainable by a process comprising the copolymerization of (i) a monomer according to Formula (1), (ii) an ethylenically unsaturated cationic monomer and (iii) a (co)polymer comprising an ethylenically unsaturated anionic monomer which comprises a sulfonate group: (1) wherein X is O or NR2, R1 and R2 are independently selected from the group consisting of hydrogen and C1-C6 alkyl groups or wherein R1 and R2 form together a (CR1R2)n- chain, wherein n is 3 to 12, and wherein R3 is independently selected from the group consisting of hydrogen and CH3. The present invention further relates to the use of ampholytic polymeric system in separation processes.Type: GrantFiled: May 4, 2012Date of Patent: July 25, 2017Assignee: Afira IPR B.V.Inventors: Johannes Petrus Aldegonda Custers, Leonard Franciscus Sophia Stemkens, Dirk Theodorus Andreas van Asseldonk
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Publication number: 20160243490Abstract: The present invention relates to a process for capturing CO2 from a CO2—containing gas stream, comprising the steps of: (a) contacting a CO2-containing gas stream with a CO2-absorbing agent in an absorption step wherein the temperature of the CO2 absorbing agent at the end of the absorption step is below the LCST of the CO2-absorbing agent at the end of the absorption step, resulting in absorption of CO2; (b) increasing the temperature of the CO2-absorbing agent, wherein the temperature at the end of the desorption step is above the LCST of the CO2-absorbing agent at the end of the desorption step, resulting in the desorption of CO2; wherein the CO2-absorbing agent is a thermoresponsive CO2-absorbing agent comprising an amine-containing component, a solute inorganic salt, and water.Type: ApplicationFiled: October 6, 2014Publication date: August 25, 2016Applicant: CarbonOrO B.V.Inventors: Matheus Theodorus DE GROOT, Johannes Petrus Aldegonda CUSTERS, Antoon Jacob Berend TEN KATE, Dirk Theodorus Andreas VAN ASSELDONK, Johannes Theodorus Faustinus KEURENTJES
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Publication number: 20160166789Abstract: Gas flow reversing element (1) for the use of a gas supply (14) under excess pressure, in particular inspiratory gases, for selectively generating a gas flow (8) from or to a line connector (6) which can in particular be connected to an airway of a patient, said gas flow reversing element (1) being designed as a main piece (2), the main piece (2) at least comprising an inflow region (9), a nozzle region (15) and a mixing region (16), and further a branching piece (3), the inflow region (9) connecting a pressure connector (4), for connection to the gas supply (14), to at least one closable outlet opening (5) arranged in the mixing region (16), and the branching piece (3) connecting the nozzle region (15) of the main piece (2) to the line connector (6), wherein a nozzle (7), particularly an injector nozzle, is configured and arranged in the nozzle region (15) in such a way that, a gas flow (8) flowing along a first flow path (20) through the main piece (2) from the pressure connector (4) subsequently through thType: ApplicationFiled: July 10, 2014Publication date: June 16, 2016Inventors: Dietmar Enk, Dirk Theodorus Andreas Van Asseldonk
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Publication number: 20160030881Abstract: A process capturing CO2 from a CO2-containing gas stream, contacting a CO2-containing gas stream with a CO2-absorbing agent in an absorption step in a vessel with maximum temperature T1 resulting in absorption of CO2. The CO2 absorbing agent comprising a polymer dissolved in an aqueous medium, the polymer, a thermoresponsive copolymer, comprising amine monomer distributed through the copolymer, subjecting the CO2-containing absorbing agent to a desorption step in a vessel with maximum temperature T2, releasing CO2, wherein T1 is below LCST of the thermoresponsive polymer at maximum CO2 loading, and T2 is above LCST of the thermoresponsive polymer at minimum CO2 loading. CO2 absorbing agent comprises amine component dissolved in the aqueous medium. Use of the specific polymer dissolved in an aqueous medium at T1, wherein amine monomer, distributed through the copolymer with an amine component, improves net CO2 sorption and high absorption speed, allowing a relatively small absorption reactor.Type: ApplicationFiled: March 12, 2014Publication date: February 4, 2016Applicant: CARBONORO B.V.Inventors: Johannes Petrus Aldegonda CUSTERS, Matheus Theodorus DE GROOT, Antoon Jacob Berend TEN KATE, Dirk Theodorus Andreas VAN ASSELDONK, Johannes Theodorus Faustinus KEURENTJES
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Publication number: 20150075535Abstract: The invention relates to a transtracheal ventilation device (1) comprising at least one base plate (10) with an opening (9) and comprising a tubular connecting part (2) with a channel (18) and a central axis (7). The base plate (10) and the connecting part (2) are connected to each other such that a lumen (5) extends into the channel (18) through the opening (9) along the central axis (7) to a fixing element (12), by means of which the lumen (5) can be connected to the connecting part (2). The fixing element (12) can be pivoted relative to the central axis (7). The invention is characterized in that the fixing element (12) is arranged at a distance (13) of at least 5 mm [millimeters] along the central axis (7) from a base plate (10) face (14) which faces away from the fixing element (12), and the opening (9) has an inner diameter (16) which is at least 20% larger than an outer diameter (17) of the lumen (5) at least on a first plane (15) perpendicular to the central axis (7).Type: ApplicationFiled: November 11, 2011Publication date: March 19, 2015Inventors: Dirk Theodorus Andreas van Asseldonk, Mark Hogerwerf
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Publication number: 20140190893Abstract: The present invention relates to an ampholytic polymeric system obtainable by a process comprising the copolymerisation of (i) a monomer according to Formula (1), (ii) an ethylenically unsaturated cationic monomer and (iii) a (co)polymer comprising an ethylenically unsaturated anionic monomer which comprises a sulfonate group: (1) wherein X is O or NR2, R1 and R2 are independently selected from the group consisting of hydrogen and C1-C6 alkyl groups or wherein R1 and R2 form together a (CR1R2)n- chain, wherein n is 3 to 12, and wherein R3 is independently selected from the group consisting of hydrogen and CH3. The present invention further relates to the use of ampholytic polymeric system in separation processes.Type: ApplicationFiled: May 4, 2012Publication date: July 10, 2014Inventors: Johannes Petrus Aldegonda Custers, Leonard Franciscus Sophia Stemkens, Dirk Theodorus Andreas Van Asseldonk
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Patent number: 8382989Abstract: The present invention relates to a process for separating a charged species from an aqueous system, wherein the process comprises the following steps: (a) a first aqueous system comprising the charged species is contacted at a first temperature with an ampholytic polymeric 5 system comprising cationic and anionic domains, wherein the charged species is bonded to the ampholytic polymeric system; and (b) the ampholytic polymeric system is contacted with a second aqueous system at a second temperature, wherein the charged species is released to the second aqueous system, wherein the second temperature is higher than the first temperature and wherein the second temperature is higher than the first temperature and wherein the second 10 temperature is less than 60° C.Type: GrantFiled: August 29, 2008Date of Patent: February 26, 2013Assignee: Afira IPR B.V.Inventors: Johannes Petrus Aldegonda Custers, Rafaël Jean Sablong, Franciscus Adrianus Maria Leermakers, Johannes Theodorus Faustinus Keurentjes, Dirk Theodorus Andreas Van Asseldonk
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Publication number: 20100237019Abstract: The present invention relates to a process for separating a charged species from an aqueous system, wherein the process comprises the following steps: (a) a first aqueous system comprising the charged species is contacted at a first temperature with an ampholytic polymeric 5 system comprising cationic and anionic domains, wherein the charged species is bonded to the ampholytic polymeric system; and (b) the ampholytic polymeric system is contacted with a second aqueous system at a second temperature, wherein the charged species is released to the second aqueous system, wherein the second temperature is higher than the first temperature and wherein the second temperature is higher than the first temperature and wherein the second 10 temperature is less than 60° C.Type: ApplicationFiled: August 29, 2008Publication date: September 23, 2010Inventors: Johannes Petrus Aldegonda Custers, Rafaël Jean Sablong, Franciscus Andrianus Maria Leermakers, Johannes Theodorus Faustinus Keurentjes, Dirk Theodorus Andreas Van Asseldonk
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Publication number: 20100003326Abstract: The present invention relates to a drug delivery device for implantation in a mammalian body comprising a thermo-sensitive polymeric material, a pharmaceutically or biologically active component and an infrared absorbing compound. The present invention also relates to a method for releasing an active compound from a drug delivery device, the drug delivery device comprising a thermo-sensitive polymeric material, a pharmaceutically or biologically active component and an infrared absorbing compound, wherein the drug delivery device is exposed to infrared irradiation thereby crossing a phase transition.Type: ApplicationFiled: July 30, 2007Publication date: January 7, 2010Applicant: DOLPHYS TECHNOLOGIES B.V.Inventors: Mikael Allan Myriam Eugene Vertommen, Dirk Theodorus Andreas Van Asseldonk, Maria Francisca Kemmere, JohannesTheodorus Faustinus Keurentjes
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Patent number: D654586Type: GrantFiled: November 18, 2010Date of Patent: February 21, 2012Assignee: Dolphys Technologies B.V.Inventors: Mark Hogerwerf, Dirk Theodorus Andreas van Asseldonk