Patents by Inventor Evert Alle Helfrich
Evert Alle Helfrich 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: 11648099Abstract: An actuator (12) for a personal care appliance (10) having an eccentric core (21) to preload the actuator (12) to prevent rattling caused by detrimental reactionary forces. The eccentric core (21) includes a pole assembly (24) radially extending from a spindle 22 having at least a first set (25-1) and a second set (25-2) of pole members. The first set (25-1) has a greater length as measured from the center of the spindle 22 than the second set (24-2), reducing the magnet gap on one side of the spindle (22) to create an eccentric core and preload the actuator (12). Alternatively, the preload can be mechanically created by a set of bearings (28) disposed within housing (18) of the actuator 12, where the bearings (28) have a centerline (A3) offset from the principal axis (A1) of the housing (18).Type: GrantFiled: January 17, 2020Date of Patent: May 16, 2023Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Kevin Arnold Miller, Wolter F. Benning, Gregory Russ Goddard, Evert Alle Helfrich
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Publication number: 20200146796Abstract: An actuator (12) for a personal care appliance (10) having an eccentric core (21) to preload the actuator (12) to prevent rattling caused by detrimental reactionary forces. The eccentric core (21) includes a pole assembly (24) radially extending from a spindle 22 having at least a first set (25-1) and a second set (25-2) of pole members. The first set (25-1) has a greater length as measured from the center of the spindle 22 than the second set (24-2), reducing the magnet gap on one side of the spindle (22) to create an eccentric core and preload the actuator (12). Alternatively, the preload can be mechanically created by a set of bearings (28) disposed within housing (18) of the actuator 12, where the bearings (28) have a centerline (A3) offset from the principal axis (A1) of the housing (18).Type: ApplicationFiled: January 17, 2020Publication date: May 14, 2020Inventors: Kevin Arnold MILLER, Wolter F. BENNING, Gregory Russ GODDARD, Evert Alle HELFRICH
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Patent number: 10537414Abstract: An actuator (12) for a personal care appliance (10) having an eccentric core (21) to preload the actuator (12) to prevent rattling caused by detrimental reactionary forces. The eccentric core (21) includes a pole assembly (24) radially extending from a spindle (22) having at least a first set (25-1) and a second set (25-2) of pole members. The first set (25-1) has a greater length as measured from the center of the spindle (22) than the second set (24-2), reducing the magnet gap on one side of the spindle (22) to create an eccentric core and preload the actuator (12). Alternatively, the preload can be mechanically created by a set of bearings (28) disposed within housing (18) of the actuator (12), where the bearings (28) have a centerline (A3) offset from the principal axis (A1) of the housing (18).Type: GrantFiled: December 15, 2015Date of Patent: January 21, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Kevin Arnold Miller, Wolter F. Benning, Gregory Russ Goddard, Evert Alle Helfrich
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Publication number: 20170367802Abstract: An actuator (12) for a personal care appliance (10) having an eccentric core (21) to preload the actuator (12) to prevent rattling caused by detrimental reactionary forces. The eccentric core (21) includes a pole assembly (24) radially extending from a spindle (22) having at least a first set (25-1) and a second set (25-2) of pole members. The first set (25-1) has a greater length as measured from the center of the spindle (22) than the second set (24-2), reducing the magnet gap on one side of the spindle (22) to create an eccentric core and preload the actuator (12). Alternatively, the preload can be mechanically created by a set of bearings (28) disposed within housing (18) of the actuator (12), where the bearings (28) have a centerline (A3) offset from the principal axis (A1) of the housing (18).Type: ApplicationFiled: December 15, 2015Publication date: December 28, 2017Inventors: KEVIN ARNOLD MILLER, WOLTER F. BENNING, GREGORY RUSS GODDARD, EVERT ALLE HELFRICH
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Patent number: 9326594Abstract: The toothbrush includes a handle portion (12 or 55) and a brushhead portion (14 or 57) with a bristle set (20 or 53) at one end of the brushhead. At least one sensor (16 or 56 is located either on the handle of the toothbrush or on the bristle set back plate (54) of the toothbrush. When the sensor is located on the handle of the toothbrush, the position of the brushhead is determined by a processor (44 or 58) relative to the inside or outside surfaces of the teeth on the basis of the temperature detected by the sensor, either the outside environmental temperature or the skin temperature of the user. When the sensor is located on the bristle set back plate, the determination is made on the basis of the position of the bristle set relative to the cheek of the user.Type: GrantFiled: April 24, 2015Date of Patent: May 3, 2016Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Johannes Hotze Bernhard De Vries, Evert Alle Helfrich, Pieter Johannes Bax, Chad Brinckerhoff, Sandor Gordijn, Theo Anjes Maria Ruijl
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Publication number: 20150230594Abstract: The toothbrush includes a handle portion (12 or 55) and a brushhead portion (14 or 57) with a bristle set (20 or 53) at one end of the brushhead. At least one sensor (16 or 56 is located either on the handle of the toothbrush or on the bristle set back plate (54) of the toothbrush. When the sensor is located on the handle of the toothbrush, the position of the brushhead is determined by a processor (44 or 58) relative to the inside or outside surfaces of the teeth on the basis of the temperature detected by the sensor, either the outside environmental temperature or the skin temperature of the user. When the sensor is located on the bristle set back plate, the determination is made on the basis of the position of the bristle set relative to the cheek of the user.Type: ApplicationFiled: April 24, 2015Publication date: August 20, 2015Inventors: JOHANNES HOTZE BERNHARD DE VRIES, EVERT ALLE HELFRICH, PIETER JOHANNES BAX, CHAD BRINCKERHOFF, SANDOR GORDIJN, THEO ANJES MARIA RUIJL
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Patent number: 9049920Abstract: The toothbrush includes a handle portion (12 or 55) and a brushhead portion (14 or 57) with a bristle set (20 or 53) at one end of the brushhead. At least one sensor (16 or 56 is located either on the handle of the toothbrush or on the bristle set back plate (54) of the toothbrush. When the sensor is located on the handle of the toothbrush, the position of the brushhead is determined by a processor (44 or 58) relative to the inside or outside surfaces of the teeth on the basis of the temperature detected by the sensor, either the outside environmental temperature or the skin temperature of the user. When the sensor is located on the bristle set back plate, the determination is made on the basis of the position of the bristle set relative to the cheek of the user.Type: GrantFiled: December 5, 2013Date of Patent: June 9, 2015Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Johannes Hotze Bernhard De Vries, Evert Alle Helfrich, Pieter Johannes Bax, Chad Brinckherhoff, Sandor Gordijn, Theo Anjes Maria Ruijl
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Publication number: 20140090197Abstract: The toothbrush includes a handle portion (12 or 55) and a brushhead portion (14 or 57) with a bristle set (20 or 53) at one end of the brushhead. At least one sensor (16 or 56 is located either on the handle of the toothbrush or on the bristle set back plate (54) of the toothbrush. When the sensor is located on the handle of the toothbrush, the position of the brushhead is determined by a processor (44 or 58) relative to the inside or outside surfaces of the teeth on the basis of the temperature detected by the sensor, either the outside environmental temperature or the skin temperature of the user. When the sensor is located on the bristle set back plate, the determination is made on the basis of the position of the bristle set relative to the cheek of the user.Type: ApplicationFiled: December 5, 2013Publication date: April 3, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: JOHANNES HOTZE BERNHARD, EVERT ALLE HELFRICH, PIETER JOHANNES BAX, CHAD BRINCKHERHOFF, SANDOR GORDIJN, THEO ANJES MARIA RUIJL
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Patent number: 8667634Abstract: The mouthpiece includes a mouthpiece carrier member (14) having upper and lower sections which are adapted to receive the upper and lower teeth of a user. The mouthpiece carrier member has several embodiments which include side members and an intermediate member or members connecting the two side members to define the two sections. A bristle field (20) is mounted on the mouthpiece carrier member for contact with the surfaces of the teeth. The mouthpiece carrier member is moved in such a manner to produce a bristle action which has a significant axial component, resulting in the bristle tufts moving toward the teeth, contacting the teeth and moving away from the teeth, producing cleaning action on the teeth.Type: GrantFiled: December 4, 2009Date of Patent: March 11, 2014Assignee: Koninklijke Philips N.V.Inventors: Jelte Steur, Martinus Bernardus Stapelbroek, Evert Alle Helfrich, Arif Veendijk
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Publication number: 20130330687Abstract: The power dental appliance includes a handle/receiver assembly (12) and a nozzle assembly (14) which is attachable thereto. The nozzle assembly and the handle/receiver include portions which together define an interface arrangement. The nozzle includes an extending tubular member (30), with two sets of opposing sides with lateral grooves (42, 44) in one set of opposing sides (38, 40), near the lower end thereof. The handle/receiver includes a hollow upper portion (32), into which the tubular member portion of the nozzle fits, the hollow portion including mating projections in the form of ribs (46, 48) which mate with the grooves in the tubular member to prevent the nozzle from coming off the handle during operation of the appliance, but permitting removal thereof by the user.Type: ApplicationFiled: February 21, 2012Publication date: December 12, 2013Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Dainia Edwards, Evert Alle Helfrich, Matthew Laurence Arksey, Ian Estle Graves
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Publication number: 20120246858Abstract: The toothbrush includes a handle portion (12 or 55) and a brushhead portion (14 or 57) with a bristle set (20 or 53) at one end of the brushhead. At least one sensor (16 or 56 is located either on the handle of the toothbrush or on the bristle set back plate (54) of the toothbrush. When the sensor is located on the handle of the toothbrush, the position of the brushhead is determined by a processor (44 or 58) relative to the inside or outside surfaces of the teeth on the basis of the temperature detected by the sensor, either the outside environmental temperature or the skin temperature of the user. When the sensor is located on the bristle set back plate, the determination is made on the basis of the position of the bristle set relative to the cheek of the user.Type: ApplicationFiled: November 22, 2010Publication date: October 4, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Johannes Hotze Bernhard De Vries, Evert Alle Helfrich, Pieter Johannes Bax, Chad Brinckerhoff, Sandor Gordijn, Theo Anjes Maria Ruijl
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Publication number: 20110258792Abstract: The mouthpiece includes a mouthpiece carrier member (14) having upper and lower sections which are adapted to receive the upper and lower teeth of a user. The mouthpiece carrier member has several embodiments which include side members and an intermediate member or members connecting the two side members to define the two sections. A bristle field (20) is mounted on the mouthpiece carrier member for contact with the surfaces of the teeth. The mouthpiece carrier member is moved in such a manner to produce a bristle action which has a significant axial component, resulting in the bristle tufts moving toward the teeth, contacting the teeth and moving away from the teeth, producing cleaning action on the teeth.Type: ApplicationFiled: December 4, 2009Publication date: October 27, 2011Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Jelte Steur, Martinus Bernardus Stapelbroek, Evert Alle Helfrich, Arif Veendijk
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Publication number: 20110247159Abstract: The dental mouthpiece includes an assembly (14, 16, 18) for holding a bristle field or fields (20) used to clean teeth when the mouthpiece is actuated, and a power assembly (12) for moving the bristle-holding structure and the bristle fields so that the bristles produce a cleaning action on the teeth, wherein the bristle fields are replaceable.Type: ApplicationFiled: December 4, 2009Publication date: October 13, 2011Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Jelte Steur, Evert Alle Helfrich, Martinus Bernardus Stapelbroek, Arif Veendijk