Patents by Inventor Hendrik Klaas Louwsma
Hendrik Klaas Louwsma 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).
-
Publication number: 20240066257Abstract: An apparatus for humidifying a gas flow stream to generate a respiratory gas to be delivered to a patient is described. The apparatus comprises a plurality of humidification chambers connected in a sequence to allow the gas flow stream to flow sequentially through the plurality of humidification chambers. Each humidification chamber is configured to contain a liquid over which the gas flow stream can flow. At least one humidification chamber includes a nozzle that forms the gas flow stream into a gas jet that impinges on a surface of the liquid in each humidification chamber. The humidity level of the gas increases as the gas flow stream flows sequentially through the plurality of humidification chambers.Type: ApplicationFiled: October 24, 2023Publication date: February 29, 2024Inventors: Hendrik Klaas Louwsma, THEODOOR STOLK
-
Patent number: 11730311Abstract: A mixing apparatus is described. The mixing apparatus has a first port for receiving milk, a second port for receiving steam, and a mixing chamber for mixing the milk, the steam, and air. A channel arrangement connects the first port and the second port, and defines an air intake channel which leads to a frothing section. The mixing apparatus is designed such that, in use, the frothing section fills sufficiently with steamed milk that has a direct path from the second port to the mixing chamber is interrupted by the steamed milk. This provides a noise reduction during use of the mixing apparatus. A flow reducing means, such as a barrier, may be used for this purpose.Type: GrantFiled: December 24, 2020Date of Patent: August 22, 2023Assignee: KONINKLIJKE PHILIPS N.VInventors: Tim Gerard Tibbe, Joeke Noordhuis, Hendrik Klaas Louwsma, Gertrude Riëtte Bakker-Van Der Kamp, Andrea Pecci, Massimiliano Sceusa, Gerben De Roode, Jan Buffinga
-
Patent number: 11648366Abstract: The present invention relates to a humidifier (10) for a system for providing a flow of breathable gas to an airway of a patient, wherein the humidifier (10) comprises: a casing (12) configured to contain a liquid reservoir (20); an air inlet (14) which is arranged at the casing (12); an air outlet (16) which is arranged at the casing (12); and a flow passage (18) connecting the air inlet (14) with the air outlet (16), wherein the flow passage (18) is in fluidic communication with the liquid reservoir (20), and wherein the humidifier (10) comprises a heat pipe (24) having a hot end (26) and a cold end (28), wherein the hot end (26) of the heat pipe (24) is arranged outside the casing (12) and the cold end (28) of the heat pipe (24) is arranged in the liquid reservoir (20).Type: GrantFiled: June 24, 2019Date of Patent: May 16, 2023Assignee: Koninklijke Philips N.V.Inventors: Hendrik Klaas Louwsma, Theodoor Stolk
-
Publication number: 20230024663Abstract: A mixing apparatus is described. The mixing apparatus has a first port for receiving milk, a second port for receiving steam, and a mixing chamber for mixing the milk, the steam, and air. A channel arrangement connects the first port and the second port, and defines an air intake channel which leads to a frothing section. The mixing apparatus is designed such that, in use, the frothing section fills sufficiently with steamed milk that has a direct path from the second port to the mixing chamber is interrupted by the steamed milk. This provides a noise reduction during use of the mixing apparatus. A flow reducing means, such as a barrier, may be used for this purpose.Type: ApplicationFiled: December 24, 2020Publication date: January 26, 2023Applicant: KONINKLIJKE PHILIPS N.VInventors: Tim Gerard TIBBE, Joeke NOORDHUIS, Hendrik Klaas LOUWSMA, Gertrude Riëtte BAKKER-VAN DER KAMP, Andrea PECCI, Massimiliano SCEUSA, Gerben DE ROODE, Jan BUFFINGA
-
Publication number: 20230014643Abstract: A mixing apparatus has a first port for receiving milk, a second port for receiving steam and a mixing chamber for mixing milk, steam and air. A channel arrangement connects the ports as well as defining an air intake channel which leads to a frothing section. An adjustment element is provided for adjusting a seal in the vicinity of the air intake channel, thereby to adjust a frothing level.Type: ApplicationFiled: December 15, 2020Publication date: January 19, 2023Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Hendrik Klaas LOUWSMA, Bart-Jan ZWART, Gertrude Riëtte BAKKER-VAN DER KAMP, Joeke NOORDHUIS, Tim Gerard TIBBE
-
Publication number: 20210113802Abstract: The present invention relates to a humidifier (10) for a system for providing a flow of breathable gas to an airway of a patient, wherein the humidifier (10) comprises: a casing (12) configured to contain a liquid reservoir (20); an air inlet (14) which is arranged at the casing (12); an air outlet (16) which is arranged at the casing (12); and a flow passage (18) connecting the air inlet (14) with the air outlet (16), wherein the flow passage (18) is in fluidic communication with the liquid reservoir (20), and wherein the humidifier (10) comprises a heat pipe (24) having a hot end (26) and a cold end (28), wherein the hot end (26) of the heat pipe (24) is arranged outside the casing (12) and the cold end (28) of the heat pipe (24) is arranged in the liquid reservoir (20).Type: ApplicationFiled: June 24, 2019Publication date: April 22, 2021Applicant: Koninklijke Philips N.V.Inventors: Hendrik Klaas LOUWSMA, Theodoor STOLK
-
Publication number: 20210060283Abstract: An apparatus for humidifying a gas flow stream is described. The apparatus comprises a plurality of humidification chambers connected in a sequence to allow the gas flow stream to flow sequentially through the plurality of humidification chambers. Each humidification chamber is configured to contain a liquid over which the gas flow stream can flow. At least one humidification chamber comprises a nozzle that forms the gas flow stream into a gas jet that impinges on a surface of the liquid in each humidification chamber. The humidity level of the gas increases as the gas flow stream flows sequentially through the plurality of humidification chambers.Type: ApplicationFiled: July 15, 2020Publication date: March 4, 2021Inventors: HENDRIK KLAAS LOUWSMA, THEODOOR STOLK
-
Patent number: 9987759Abstract: A hair cutting appliance includes a mounting unit configured to couple a cutting unit to a housing. The mounting unit includes a swivel mechanism having a base portion configured to be coupled to the housing, and a top portion configured to be coupled to the cutting unit, where the base and top portions are movable with respect to each other, such that, during operation, the cutting unit is pivotably supported by the swivel mechanism, which defines a virtual pivot axis for the cutting unit. The virtual pivot axis is substantially parallel to a cutting edge of the cutting unit. In a first or shaving state of the swivel mechanism, the virtual pivot axis is located at a first position with respect to the cutting unit, and in a second or styling state, the virtual pivot axis is located at a second position that is different from the first position.Type: GrantFiled: November 21, 2014Date of Patent: June 5, 2018Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Jeroen Molema, Albert Jan Aitink, Bram Tuijp, Hendrik Klaas Louwsma, Martinus Bernardus Stapelbroek, Robbert Freerk Johan Van Der Scheer
-
Publication number: 20160271815Abstract: The present invention relates to a hair cutting appliance (10) comprising a mounting unit (30) for coupling a cutting unit (18) and a housing (12) thereof, and to a mounting unit (30), the mounting unit (30) comprising a swivel mechanism (32) comprising a base portion (38) arranged to be coupled to a housing (12), and a top portion (46) arranged to be coupled to a cutting unit (18), wherein the base portion (38) and the top portion (46) are movable with respect to each other, such that, during operation, the cutting unit (18) is pivotably supported by the swivel mechanism (32), wherein the swivel mechanism (32) defines a virtual pivot axis (p) for the cutting unit (18), the virtual pivot axis (p) being substantially parallel to a cutting edge (29) of the cutting unit (18),wherein, in a first state (I) of the swivel mechanism (32) in which the cutting unit (18) is adapted for shaving, the virtual pivot axis (p) is located at a first position (p) with respect to the cutting unit (18), and wherein, in a second sType: ApplicationFiled: November 21, 2014Publication date: September 22, 2016Inventors: JEROEN MOLEMA, ALBERT JAN AITINK, BRAM TUIJP, HENDRIK KLAAS LOUWSMA, MARTINUS BERNARDUS STAPELBROEK, ROBBERT FREERK JOHAN VAN DER SCHEER
-
Publication number: 20160235181Abstract: A system comprises a first container (2) holding liquid (9) and a second container (4) holding a shaving unit (1) in the liquid (9). A pump (3) pumps the liquid (9) from the first container (2) into the second container (4). A drain (5) enables the liquid (9) to flow from the second container (4) back to the first container (2). A pump driver (6) supplies power to the pump (3) during active periods (Ta) of a cleaning cycle (Tt). A sensor (7) senses the power. A controller (8) detects a disruption in the flow of the liquid (9) by detecting that sensed information (Ab) deviates more than a threshold value (At) from nominal information (An). The nominal sensed information (An) occurs when there is no disruption in the flow of the liquid (9) through the pump (3) during the active periods (Ta).The threshold value (At) is in a range of 0.05 to 0.Type: ApplicationFiled: September 22, 2014Publication date: August 18, 2016Inventors: HENDRIK KLAAS LOUWSMA, ESTHER VREDEVELD, SIETZE ALGRA, RENGER YPENBURG
-
Patent number: 8625196Abstract: Switchable lens systems and methods of manufacturing switchable lens systems are provided. A representative switchable lens system includes an imaging area and a seal line. The imaging area includes a first glass plate, a second glass plate and a lenticular structure. The lenticular structure is arranged in between the first and second glass plates and is provided with a plurality of cavities in between the lenticular structure and one of the first and second glass plates. The seal line surrounds the imaging area at its periphery, and is provided with a throughhole. A filling channel is located between at least a portion of the periphery of the imaging area and the seal line to provide a connection between the throughhole and multiple ones of the cavities.Type: GrantFiled: May 29, 2007Date of Patent: January 7, 2014Assignee: Chimei Innolux CorporationInventor: Hendrik Klaas Louwsma
-
Patent number: 7687812Abstract: A representative LED array includes: a base substrate (BS) and a plurality of light emitting diodes, each of the light emitting diodes comprising a stack of a first contact layer, a semiconductor stack and a second contact layer, the semiconductor stack being on top of the first contact layer, the second contact layer being on top of the semiconductor stack; the plurality of light emitting diodes being arranged in pixel matrix on the base substrate as LEDs of at least three types (R, G, B); the LEDs according to their type (R, G, B) being arranged as at least a first, second and third sub-pixel in the pixel matrix for emission of radiation of a respective specific at least first, second and third color; and interconnection circuitry on the substrate, operative to connect to the light emitting diodes of the array for addressing each of the light emitting diodes.Type: GrantFiled: June 15, 2007Date of Patent: March 30, 2010Assignee: TPO Displays Corp.Inventors: Hendrik Klaas Louwsma, Pieter Goldhoorn, Hermans Jans
-
Publication number: 20080297896Abstract: Switchable lens systems and methods of manufacturing switchable lens systems are provided. A representative switchable lens system includes an imaging area and a seal line. The imaging area includes a first glass plate, a second glass plate and a lenticular structure. The lenticular structure is arranged in between the first and second glass plates and is provided with a plurality of cavities in between the lenticular structure and one of the first and second glass plates. The seal line surrounds the imaging area at its periphery, and is provided with a fill opening. A filling channel is located between at least a portion of the periphery of the imaging area and the seal line to provide a connection between the fill opening and multiple ones of the cavities.Type: ApplicationFiled: May 29, 2007Publication date: December 4, 2008Applicant: TPO DISPLAYS CORP.Inventor: Hendrik Klaas Louwsma