Patents by Inventor Johan Pragt
Johan Pragt 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: 10850409Abstract: A shaving apparatus, shaving head and/or at least one cutting unit for shaving both short and long hairs. The shaving apparatus, shaving head and/or at least one cutting unit includes an external cutting member and an internal cutting member movably arranged with respect to the external cutting member. A driver may be provided for moving the internal cutting member. The external cutting member is provided with a shaving section having two mutually connected lateral borders forming hair entry apertures. The internal cutting member is provided with cutting elements having cutting edges for cooperation with cutting edges of the external cutting member. A number of the hair entry apertures are formed by two substantially flat lamellae of the external cutting member which have free ends positioned between the borders of the shaving section.Type: GrantFiled: November 20, 2017Date of Patent: December 1, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Bastian Cornelis Kleine Doepke, Johan Bron, Johan Pragt, Hendrik Poel
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Patent number: 10730197Abstract: A hair cutting appliance is configured to be moved through hair in a moving direction in order to cut hair. The hair cutting appliance includes a housing portion, a blade set having a skin-facing top surface, and a releasable attachment comb. The blade set is arranged pivotably with respect to the housing portion. The attachment comb includes a supporting frame, at least one spacing guard element configured to space the blade set from a working surface when in operation, a mounting portion configured to be attached to a housing portion of the hair cutting appliance, and an orientation determining portion configured to engage the blade set and to define a locking orientation of the blade set when mounted to the hair cutting appliance.Type: GrantFiled: April 14, 2015Date of Patent: August 4, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Luca Iaccarino, Britt Roumen, Martinus Bernardus Stapelbroek, Jan Bennik, Johan Pragt, Remy Amos Abraham Ripandelli, Robbert Freerk Johan Van Der Scheer, Albert Jan Aitink, Roalnd Van Straaten, Everhardus Johannes Hoexum, Jan Van Dalen
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Patent number: 9956697Abstract: A personal care device is provided with a cutting unit comprising an external cutting member and an internal cutting member. A virtual skin plane is located on a side of the external cutting member facing away from the internal cutting member. The internal cutting member comprises cutting elements each having a first cutting edge. The external cutting member comprises hair-entry apertures each having a second cutting edge. In a starting position of cutting a hair situated in a cutting position in the hair-entry aperture and extending perpendicularly to the virtual skin plane, the first cutting edge is in contact with the hair in a first contact position, and the second cutting edge is in contact with the hair in a second contact position, wherein the first contact position is closer to the virtual skin plane than the second contact position.Type: GrantFiled: July 16, 2014Date of Patent: May 1, 2018Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Johan Pragt, Wouter Van Kempen, Robert Alexander Van Eibergen Santhagens, Tarek Zeinel-Din
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Publication number: 20180071927Abstract: A shaving apparatus, shaving head and/or at least one cutting unit for shaving both short and long hairs. The shaving apparatus, shaving head and/or at least one cutting unit includes an external cutting member and an internal cutting member movably arranged with respect to the external cutting member. A driver may be provided for moving the internal cutting member. The external cutting member is provided with a shaving section having two mutually connected lateral borders forming hair entry apertures. The internal cutting member is provided with cutting elements having cutting edges for cooperation with cutting edges of the external cutting member. A number of the hair entry apertures are formed by two substantially flat lamellae of the external cutting member which have free ends positioned between the borders of the shaving section.Type: ApplicationFiled: November 20, 2017Publication date: March 15, 2018Inventors: BASTIAN CORNELIS KLEINE DOEPKE, JOHAN BRON, JOHAN PRAGT, HENDRIK POEL
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Publication number: 20180009121Abstract: The present disclosure relates to a hair cutting appliance (10), a blade set (22; 130; 150; 170) for a hair cutting appliance (10), and to a stationary blade (24) for said blade set (22; 130; 150; 170).Type: ApplicationFiled: February 11, 2016Publication date: January 11, 2018Inventors: MARTINUS BERNARDUS STAPELBROEK, JAN BENNIK, JOHAN PRAGT, REMY AMOS ABRAHAM RIPANDELLI, ROBERT FREERK JAHAN VAN DER SCHEER, JAN VAN DALEN, ALBERT JAN AITINK, ROLAND VAN STRAATEN, EVERHARDUS HOHANNES HOEXUM
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Patent number: 9821478Abstract: A shaving apparatus, shaving head and/or at least one cutting unit for shaving both short and long hairs. The shaving apparatus, shaving head and/or at least one cutting unit includes an external cutting member and an internal cutting member movably arranged with respect to the external cutting member. A driver may be provided for moving the internal cutting member. The external cutting member is provided with a shaving section having two mutually connected lateral borders forming hair entry apertures. The internal cutting member is provided with cutting elements having cutting edges for cooperation with cutting edges of the external cutting member. A number of the hair entry apertures are formed by two substantially flat lamellae of the external cutting member which have free ends positioned between the borders of the shaving section.Type: GrantFiled: June 11, 2008Date of Patent: November 21, 2017Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Bastian Cornelis Kleine Doepke, Johan Bron, Johan Pragt, Hendrik Poel
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Patent number: 9789617Abstract: The present invention relates to a hair cutting appliance (10), a blade set (20) for a hair cutting appliance (10), and to a stationary blade (22) for said blade set (20), said blade comprising a first wall portion (44) and a second wall portion (46), each which defining a first surface (80, 82, 84), and a second surface (86, 88, 90) facing away from the first surface (80, 82, 84), and an intermediate wall portion (48) arranged between the first and the second wall portion (46), wherein the first wall portion (44) the second wall portion (46) and the intermediate wall portion (48) jointly define at least one toothed leading edge (32, 34), wherein the first surfaces (80, 82) of the first wall portion (44) and the second wall portion (46) face each other, at least at their leading edges (32, 34), the first wall portion (44), the second wall portion (46) and the intermediate wall portion (48) are interconnected at their tips (38) to define a plurality of teeth (40), wherein the first surfaces (80, 82) of the firType: GrantFiled: September 29, 2014Date of Patent: October 17, 2017Assignee: KONINKLIJKE PHILLIPS N.V.Inventors: Martinus Bernardus Stapelbroek, Jan Bennik, Albert Jan Aitink, Robbert Freerk Van Der Scheer, Remy Ripandelli, Johan Pragt, Fokke Roelof Voorhorst
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Publication number: 20170028574Abstract: The present disclosure relates to a hair cutting appliance (10) arranged to be moved through hair in a moving direction (28) in order to cut hair. The hair cutting appliance (10) having: a housing portion (12), a blade set (20) having a skin-facing top surface (32), and a releasable attachment comb (50). The blade set (20) is arranged pivotably with respect to the housing portion (12). The attachment comb (50) comprises a supporting frame (52), at least one spacing guard element (58) arranged to space the blade set (20) from a working surface when in operation, a mounting portion (60) arranged to be attached to a housing portion (12) of the hair cutting appliance (10), and an orientation determining portion (62) arranged to engage the blade set (20) and to define a locking orientation of the blade set (20) when mounted to the hair cutting appliance (10). The present disclosure further relates to an attachment comb (50) for use with a hair cutting appliance (10).Type: ApplicationFiled: April 14, 2015Publication date: February 2, 2017Inventors: LUCA IACCARINO, BRITT ROUMEN, MARTINUS BERNARDUS STAPELBROEK, JAN BENNIK, JOHAN PRAGT, REMY AMOS ABRAHAM RIPANDELLI, ROBBERT FREERK JOHAN VAN DER SCHEER, ALBERT JAN AITINK, ROALAND VAN STRAATEN, EVERHARDUS JOHANNES HOEXUM, JAN VAN DALEN
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Patent number: 9555551Abstract: A shaving unit includes a cap having an annular shaving track defining an axis. The shaving track is provided with hair entry apertures which have a V-shaped forward edge with a point directed in a cutting direction. Further, a rotary cutter has a plurality of cutter blades, where the rotary cutter is configured to rotate about the axis such that the cutter blades follow the shaving track in the cutting direction to cut hairs protruding through the hair entry apertures. The cutter blades have a V-shaped cutting edge, where a point of the V-shaped cutting edge is directed opposite to the direction of rotation of the rotary cutter.Type: GrantFiled: December 24, 2012Date of Patent: January 31, 2017Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Stuart Robbie Campbell, Jan Dirk Van Den Berge, Johan Pragt, Friso Terpstra, Albert Maas De Lange, Wouter Van Kempen, Robert Alexander Van Eibergen Santhagens
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Publication number: 20160236361Abstract: The present invention relates to a hair cutting appliance (10), a blade set (20) for a hair cutting appliance (10), and to a stationary blade (22) for said blade set (20), said blade comprising a first wall portion (44) and a second wall portion (46), each which defining a first surface (80, 82, 84), and a second surface (86, 88, 90) facing away from the first surface (80, 82, 84), and an intermediate wall portion (48) arranged between the first and the second wall portion (46), wherein the first wall portion (44) the second wall portion (46) and the intermediate wall portion (48) jointly define at least one toothed leading edge (32, 34), wherein the first surfaces (80, 82) of the first wall portion (44) and the second wall portion (46) face each other, at least at their leading edges (32, 34), the first wall portion (44), the second wall portion (46) and the intermediate wall portion (48) are interconnected at their tips (38) to define a plurality of teeth (40), wherein the first surfaces (80, 82) of the firType: ApplicationFiled: September 29, 2014Publication date: August 18, 2016Inventors: MARTINUS BERNARDUS STAPELBROEK, JAN BENNIK, ALBERT JAN AITINK, ROBBERT FREERK VAN DER SCHEER, REMY RIPANDELLI, JOHAN PRAGT, FOKKE ROELOF VOORHORST
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Publication number: 20160158947Abstract: A personal care device, such as a shaving apparatus, provided with at least one cutting unit (21) comprising an external cutting member (23) and an internal cutting member (22) which is moveable relative to the external cutting member (23) in at least one direction of movement. A virtual skin plane (10) is located on a side of the external cutting member (23) facing away from the internal cutting member (22). The virtual skin plane (10) extends parallel to said direction of movement and parallel to a skin surface when the cutting unit (21) is in an operational position relative to the skin surface. The internal cutting member (22) comprises a plurality of cutting elements (39) each comprising a first cutting edge (50). A projection of the first cutting edge (50) in the virtual skin plane (10) encloses at least a first shearing angle with said direction of movement.Type: ApplicationFiled: July 16, 2014Publication date: June 9, 2016Inventors: JOHAN PRAGT, WOUTER VAN KEMPEN, ROBERT ALEXANDER EIBERGEN SANTHAGENS, TAREK ZEINELDIN
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Publication number: 20150040403Abstract: A shaving unit (1) comprises a cap (2) having an annular shaving track (8) defining an axis (Z), the shaving track being provided with hair entry apertures (20) which have a V-shaped forward edge with a point directed in a cutting direction (Y). A rotary cutter (4) has a plurality of cutter blades (18), the cutter being arranged to rotate about the axis such that the cutter blades follow the shaving track in the cutting direction to cut hairs protruding through the apertures, wherein the cutter blades have a V-shaped cutting edge (34) and a point of the V is directed opposite to the direction of rotation.Type: ApplicationFiled: December 24, 2012Publication date: February 12, 2015Inventors: Stuart Robbie Campbell, Jan Dirk Van Den Berge, Johan Pragt, Friso Terpstra, Albert Maas De Lange, Wouter Van Kempen, Robert Alexander Van Eibergen Santhagens
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Patent number: 8458914Abstract: A shaving device includes cooperating hair cutting elements and a driver for driving the hair cutting elements. The shaving device is configured to allow for automatic contour following during its application on the skin of a user. At least one cutting element is pivotably arranged in the shaving device, wherein a pivot axis intersects at least one position where the cutting element is contacted by a driving member for imposing reciprocating movement on the cutting element.Type: GrantFiled: December 5, 2008Date of Patent: June 11, 2013Assignee: Koninklijke Philips Electronics N.V.Inventors: Fokke Roelof Voorhorst, Bastiaan Johannes De Wit, Alastair Ian Blake, Johan Pragt
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Patent number: 8312592Abstract: The invention relates to a cleaning apparatus (10) for releasing and transporting particles away from an area to be cleaned, comprising: a housing (6) having an opening (8) to be positioned on an area (1) to be cleaned;—a member that is movable within the apparatus for generating an airflow to release and transport particles away from the area; wherein the member comprises an airflow-generating surface (12) arranged within the housing (6), said airflow-generating surface in its operating condition lacing the area (1) to be cleaned and having a direction of movement that is substantially parallel to said area so as to cause an airflow parallel to said area. The apparatus according to the invention requires less energy for releasing and transporting particles away from an area to be cleaned.Type: GrantFiled: March 24, 2006Date of Patent: November 20, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Fokke R. Voorhorst, Johan Pragt, Freddy Moes, Jan Hans Benedictus, Lorcan Jarlath Kemple
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Publication number: 20120210586Abstract: Hair cutting device comprising a base portion (20), a working head (21) and at least one pivoting mechanism (10) provided in between the base portion and the working head for a pivoting movement of the working head with respect to the base portion. The pivoting mechanism comprises a contact body (11) having a contact surface (14), wherein said contact body is connected to the base portion, and a counter body (13) having a running surface (14) interacting with the roller surface, wherein said counter body is fixedly connected to the working head. Further, the pivoting mechanism comprises a holding unit (15) for connecting the contact body to the counter body.Type: ApplicationFiled: November 5, 2010Publication date: August 23, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Mark Johannes Lelieveld, Jasper Zuidervaart, Johan Pragt
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Patent number: 8186064Abstract: Shaving apparatus with cutting members which are movable relative to one another and are each provided with a row of substantially V-shaped teeth having edges, a cutting opening between each pair of cooperating teeth for catching hairs, said cutting opening having a shearing angle between 1° and 30°, wherein the cutting openings are not completely closed during operation of the shaving apparatus.Type: GrantFiled: March 18, 2005Date of Patent: May 29, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Johan Pragt, Fokke Roelof Voorhorst, Jan Spoelstra, Alastair Ian Blake, Bastiaan Johannes De Wit, Jasper Zuidervaart, Albert Maas De Lange, Anna Dirkje Bosma
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Publication number: 20100299930Abstract: A shaving device comprising cooperating hair cutting elements (4, 5) and means for driving the hair cutting elements (4, 5) is adapted to allow for automatic contour following during its application on the skin of a user. In particular, at least one cutting element (4, 5) is pivotably arranged in the shaving device, wherein a pivot axis (15) is intersecting at least one position where the cutting element (4, 5) is contacted by a driving member (14) for imposing the reciprocating movement on the cutting element (4, 5). In this way, a high drive stiffness is guaranteed, which is particularly important when a stroke of the movement of the cutting element (4, 5) is relatively small, for example, in an order of 100 ?m.Type: ApplicationFiled: December 5, 2008Publication date: December 2, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Fokke Roelof Voorhorst, Bastiaan Johannes De Wit, Alastair Ian Blake, Johan Pragt
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Publication number: 20100175258Abstract: A shaving apparatus having at least one cutting unit (5) is provided which is able to shave both short and rather long hairs. The cutting unit comprises an external cutting member (7) and an internal cutting member (9) movably arranged with respect to the external cutting member, and a driver (11) for moving the internal cutting member. The external cutting member is provided with a shaving section (13) having two mutually connected lateral borders (15, 17) between which hair entry apertures with cutting edges (23) are provided. The internal cutting member is provided with cutting elements (25) having cutting edges (27) for cooperation with the cutting edges of the external cutting member. A number of the hair entry apertures is formed by laterally open recesses (21) each extending between two substantially flat lamellae (29) of the external cutting member, which lamellae have free ends (29a, 29b) positioned between the borders of the shaving section.Type: ApplicationFiled: June 11, 2008Publication date: July 15, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Bastian Cornelis Kleine Doepke, Johan Bron, Johan Pragt, Hendrik Poel
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Publication number: 20080201899Abstract: The invention relates to a cleaning apparatus (10) for releasing and transporting particles away from an area to be cleaned, comprising: a housing (6) having an opening (8) to be positioned on an area (1) to be cleaned;—a member that is movable within the apparatus for generating an airflow to release and transport particles away from the area; wherein the member comprises an airflow-generating surface (12) arranged within the housing (6), said airflow-generating surface in its operating condition lacing the area (1) to be cleaned and having a direction of movement that is substantially parallel to said area so as to cause an airflow parallel to said area. The apparatus according to the invention requires less energy for releasing and transporting particles away from an area to be cleaned.Type: ApplicationFiled: March 24, 2006Publication date: August 28, 2008Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Fokke R. Voorhorst, Johan Pragt, Freddy Moes, Jan Hans Benedictus, Lorcan Jarlath Kemple
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Publication number: 20070209211Abstract: Shaving apparatus with cutting members (3, 5) which are movable relative to one another other and are each provided with a row of substantially V-shaped teeth (4, 6) having edges (7, 8), a cutting opening (9?, 9?) between each pair of cooperating teeth (4, 6) for catching hairs, said cutting opening having a shearing angle between 1° and 30°, wherein the cutting openings (9?, 9?) are not completely closed during operation of the shaving apparatus.Type: ApplicationFiled: March 18, 2005Publication date: September 13, 2007Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Johan Pragt, Fokke Voorhorst, Jan Spoelstra, Alastair Blake, Bastiaan De Wit, Jasper Zuidervaart, Albert De Lange, Anna Bosma