Patents by Inventor Aaldert Geert ZIJLSTRA

Aaldert Geert ZIJLSTRA 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).

  • Patent number: 11857501
    Abstract: A baby bottle device (100) is provided which comprises a container (110) with a container volume (115), a teat (120) with a teat volume (125) and a valve unit (200). The teat comprises a first valve (112) for inletting air into the inside volume of the bottle (100). The inside volume of the bottle corresponds to the volume of the container (110) and the teat volume (125). The valve unit (200) with a second valve (210 230) is arranged outside the teat volume (125). The threshold of the vent unit is lower than the threshold of the first vent (112) in the teat.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: January 2, 2024
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Aaldert Geert Zijlstra, Gertrude Riëtte Bakker-Van Der Kamp, Luc Berntsen, Klaas Kooijker, Johannes Tseard Van Der Kooi
  • Publication number: 20230320546
    Abstract: Provided is a wet cleaning apparatus (10), such as a wet vacuum cleaner. The wet cleaning apparatus comprises a dirt inlet (11), and a motor (14) and fan (16) for delivering suction to the dirt inlet. A separator unit (18) separates water from a flow of air generated by the suction. The apparatus further includes a container (19) for collecting the separated water. The container has a top (19A) and a bottom (19B). An air passage (22) is provided in the container for passing the air separated from the water towards the motor and fan. The air passage is spatially separated from the bottom of the container. An internal wall (19E) extends from the top towards the bottom of the container. A space (25) is thus defined between the container and the internal wall. Water collected at the bottom of container is receivable in the space when the container is orientated, e.g. tilted, such that the collected water moves from the bottom towards the top of the container.
    Type: Application
    Filed: September 17, 2021
    Publication date: October 12, 2023
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Albert AL-SHORACHI, Aaldert Geert ZIJLSTRA, Johannes Tseard VAN DER KOOI
  • Publication number: 20230320545
    Abstract: A wet cleaning apparatus includes a cleaner head having a dirt inlet. A motor and fan deliver suction to the dirt inlet. Further, the wet cleaning apparatus includes a separator unit for separating water from a flow of air generated by the suction. The separated water is collected in a container having a top and a bottom, and a side portion extending there between. The separated air is passed out of the container towards the motor and fan via an air passage. The air passage is spatially separated from the bottom of the container. The water collected in the container sloshes against the side portion of the container when a user is pushing the cleaner head and the container forward. A water directing member sealingly adjoins the side portion, and protrudes into the container backwards from the side portion, thereby to inhibit the water sloshing against the side portion.
    Type: Application
    Filed: September 17, 2021
    Publication date: October 12, 2023
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Albert AL-SHORACHI, Aaldert Geert ZIJLSTRA, Johannes Tseard VAN DER KOOI
  • Publication number: 20230042811
    Abstract: A cyclone unit is for separating liquid and particles from a suction flow. A main flow inlet to the outer housing of the cyclone unit includes an opening. The transition between the main flow inlet and the outer housing at this opening has, at least for a portion of the opening, a radius of curvature of at least 0.5 mm. The large radius of curvature prevents the formation of static water drops.
    Type: Application
    Filed: January 11, 2021
    Publication date: February 9, 2023
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Albert AL-SHORACHI, Aaldert Geert ZIJLSTRA, Johannes Tseard VAN DER KOOI
  • Publication number: 20230039475
    Abstract: A wet vacuum cleaner uses a cyclone unit for separating liquid and particles from a suction flow. A main flow inlet to a cyclone chamber is spaced internally from its respective end by a separation distance. The separation distance is at least 0.1 times (effective/equivalent) diameter of the main flow inlet, which assists in preventing formation of large droplets which follows a path to a main flow outlet.
    Type: Application
    Filed: January 11, 2021
    Publication date: February 9, 2023
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Albert AL-SHORACHI, Aaldert Geert ZIJLSTRA, Johannes Tseard VAN DER KOOI
  • Publication number: 20220249212
    Abstract: The present disclosure is directed to mechanisms for oral irrigator fluid channels which provide back flow prevention. The oral irrigator comprises: an irrigator tip; a tether having a first end and a second end, a third channel arranged between the first end and the second end, where the first end of the tether is in fluid communication with the second channel; a reservoir containing a fluid, the reservoir in fluid communication with a pump, the pump in fluid communication with the third channel and the second end of the tether; and an arrowhead check valve comprising a resilient element and an elastic head element, the arrowhead check valve arranged within the first channel, the second channel, or the third channel. The irrigator tip comprises: a nozzle comprising a first channel; and a handle comprising a second channel in fluid communication with the first channel.
    Type: Application
    Filed: July 24, 2020
    Publication date: August 11, 2022
    Inventors: Joldert Maria BOERSMA, Jason Daniel MILLER, Jay WOLFER, Le Gia PHAM, Egbert VAN DE VEEN, Jose VILLAR, Aaldert Geert ZIJLSTRA, Klaas KOOIJKER
  • Publication number: 20220117710
    Abstract: An oral irrigator having an irrigator tip, the tip including a handle portion, a tip portion, a channel in fluid communication with the tether and arranged within the handle portion and the tip portion, and an actuator located on or within the handle portion, the actuator arranged to at least partially altar a flow of a fluid through the channel. The oral irrigator further includes a housing, the housing having a reservoir in fluid communication with a pump sub-assembly, a sensor arranged to measure a first pressure or first electrical load within the pump sub-assembly, and a control unit arranged to control an operational current provided to the pump sub-assembly where operation of the actuator produces a second pressure or electrical load measured by the sensor and the control unit is arranged to alter the operational current of the motor in response to the change.
    Type: Application
    Filed: January 14, 2020
    Publication date: April 21, 2022
    Inventors: Jeffrey GROVES, Aaldert Geert ZIJLSTRA, Nathan FARRELL, Klass KOOIJKER, Joldert Maria BOERSMA, Desalegn GEBRESILASSIE, Egbert VAN DE VEEN
  • Publication number: 20220040045
    Abstract: A baby bottle device (100) is provided which comprises a teat (110) having a teat volume (115), a container (120) having a container volume (125) and a partitioning element (300) between the teat volume (110) and the container volume (125). The partitioning element (300) comprises a plurality of openings (310) for letting fluid in the container volume (125) flow into the teat volume (115). The baby bottle device comprises a floater (400) having a buoyancy, being coupled to the partitioning element (300) and being adapted to close at least one of the plurality of openings (310) in the partitioning element (300).
    Type: Application
    Filed: December 27, 2019
    Publication date: February 10, 2022
    Inventors: Aaldert Geert ZIJLSTRA, Klaas KOOIJKER, Gertrude Riëtte BAKKER-VAN DER KAMP, Johannes Tseard VAN DER KOOI
  • Publication number: 20220031572
    Abstract: A baby bottle device (100) is provided which comprises a container (110) with a container volume (115), a teat (120) with a teat volume (125) and a valve unit (200). The teat comprises a first valve (112) for inletting air into the inside volume of the bottle (100). The inside volume of the bottle corresponds to the volume of the container (110) and the teat volume (125). The valve unit (200) with a second valve (210 230) is arranged outside the teat volume (125). The threshold of the vent unit is lower than the threshold of the first vent (112) in the teat.
    Type: Application
    Filed: January 2, 2020
    Publication date: February 3, 2022
    Inventors: Aaldert Geert ZIJLSTRA, Gertrude Riëtte BAKKER-VAN DER KAMP, Luc BERNTSEN, Klaas KOOIJKER, Johannes Tseard VAN DER KOOI
  • Publication number: 20210361399
    Abstract: A valve assembly (10) including first and second housing parts (22, 24). The first and second housing parts are secured to each other such that respective channels in each are aligned to define inlet and outlet fluid pathways (25, 35) through the valve assembly. A leaf valve insert (38) is arranged between the first and second housing parts, and includes a plurality of leaves (40). First and second leaves are respectively aligned with the inlet and outlet fluid pathways. The first leaf (40a) is configured to permit fluid flow in the inlet fluid pathway in a first direction while impeding fluid flow in a second direction. The second leaf (40b) is configured to permit fluid flow in the outlet fluid pathway in the second direction while impeding fluid flow in the first direction. The first direction is from the first housing part toward the second, and the second direction is from the second housing part toward the first.
    Type: Application
    Filed: November 21, 2018
    Publication date: November 25, 2021
    Inventors: Joldert Maria BOERSMA, Klaas KOOIJKER, Aaldert Geert ZIJLSTRA, Desalegn GEBRESILASSIE, Egbert VAN DE VEEN
  • Patent number: 10624449
    Abstract: A method (500) for characterizing a personal care device (10). The method includes the steps of: (i) providing (510) a personal care device comprising a plurality of tufts (18), where a first one (18a) of the plurality of tufts includes a first tactile sensor (38a) and comprises a first angle relative to a device head, and further where a second one (18b) of the plurality of tufts includes a second tactile sensor (38b) and comprises a second angle relative to the device head; (ii) generating (520), in response to interaction of the plurality of tufts with a use surface (40), first sensor data by the first tactile sensor and second sensor data by the second tactile sensor; and (iii) characterizing (530), by the controller using the first sensor data and the second sensor data, a position of the personal care device within the use area.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: April 21, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Aaldert Geert Zijlstra, Steven Charles Deane
  • Patent number: 10598163
    Abstract: A semi-free rotating crankshaft actuator (80) for an oral healthcare appliance comprises a chamber (82), a spring loadable plunger (85), and a crank mechanism (88). The crank mechanism (88) comprises at least a drive pin (90) rotatably driven about a drive axis (96), and a crank shaft (94) semi-freely rotatable about the drive axis, wherein the crank shaft (94) couples to the spring loadable plunger (85) and is partially driven about the drive axis (96) via (i) the drive pin (90) in a first operational mode, (ii) the spring loadable plunger (85) in a second operational mode, and (iii) the drive pin (90) in a third operational mode that comprises at least completing an incomplete actuation of the plunger (84) from an undesired end position to the desired end position in response to the crank shaft (94) pushing the plunger (84) from the undesired end position to the desired end position.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: March 24, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Joldert Maria Boersma, Pieter Herman Klokman, Klaas Kooijker, Egbert Van De Veen, Aaldert Geert Zijlstra, Stephanus Jacob Gerardus Tamminga
  • Publication number: 20190254414
    Abstract: A method (500) for characterizing a personal care device (10). The method includes the steps of: (i) providing (510) a personal care device comprising a plurality of tufts (18), where a first one (18a) of the plurality of tufts includes a first tactile sensor (38a) and comprises a first angle relative to a device head, and further where a second one (18b) of the plurality of tufts includes a second tactile sensor (38b) and comprises a second angle relative to the device head; (ii) generating (520), in response to interaction of the plurality of tufts with a use surface (40), first sensor data by the first tactile sensor and second sensor data by the second tactile sensor; and (iii) characterizing (530), by the controller using the first sensor data and the second sensor data, a position of the personal care device within the use area.
    Type: Application
    Filed: October 30, 2017
    Publication date: August 22, 2019
    Inventors: AALDERT GEERT ZIJLSTRA, STEVEN CHARLES DEANE
  • Publication number: 20180363635
    Abstract: A semi-free rotating crankshaft actuator (80) for an oral healthcare appliance comprises a chamber (82), a spring loadable plunger (85), and a crank mechanism (88). The crank mechanism (88) comprises at least a drive pin (90) rotatably driven about a drive axis (96), and a crank shaft (94) semi-freely rotatable about the drive axis, wherein the crank shaft (94) couples to the spring loadable plunger (85) and is partially driven about the drive axis (96) via (i) the drive pin (90) in a first operational mode, (ii) the spring loadable plunger (85) in a second operational mode, and (iii) the drive pin (90) in a third operational mode that comprises at least completing an incomplete actuation of the plunger (84) from an undesired end position to the desired end position in response to the crank shaft (94) pushing the plunger (84) from the undesired end position to the desired end position.
    Type: Application
    Filed: November 30, 2016
    Publication date: December 20, 2018
    Applicant: Koninklijke Philips N.V.
    Inventors: Joldert Maria BOERSMA, Pieter Herman KLOKMAN, Klaas KOOIJKER, Egbert VAN DE VEEN, Aaldert Geert ZIJLSTRA, Stephanus Jacob Gerardus TAMMINGA