Patents by Inventor Henricus A. M. Janssen
Henricus A. M. Janssen 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: 10280023Abstract: The invention provides a web winding device for attaching a leading edge of a web to a take-up roller positioned at an end of a transport path. A guide device is rotatable around the roller axis of the take-up roller from a first to a second angular position. The first angular position is positioned adjacent the end of the transport path and the second angular position is positioned in a space between the transport path and the take-up roller. The guide device is arranged for: at the first angular position, pushing the leading edge of the web against the take-up roller; during rotation, holding the leading edge in pushing engagement with the take-up roller; and at the second angular position, guiding the leading edge between the web on the transport path and the take-up roller for attaching the leading edge to the take-up roller.Type: GrantFiled: December 9, 2016Date of Patent: May 7, 2019Assignee: OCÉ-TECHNOLOGIES B.V.Inventors: Wilhelmus J. E. G. Verhofstad, Henricus A. M. Janssen, Maurice J. C. Lemmens, Marco Kemp, Hermanus P. H. M. Van Rhee
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Publication number: 20170183182Abstract: The invention provides a web winding device for attaching a leading edge of a web to a take-up roller positioned at an end of a transport path. A guide device is rotatable around the roller axis of the take-up roller from a first to a second angular position. The first angular position is positioned adjacent the end of the transport path and the second angular position is positioned in a space between the transport path and the take-up roller. The guide device is arranged for: at the first angular position, pushing the leading edge of the web against the take-up roller; during rotation, holding the leading edge in pushing engagement with the take-up roller; and at the second angular position, guiding the leading edge between the web on the transport path and the take-up roller for attaching the leading edge to the take-up roller.Type: ApplicationFiled: December 9, 2016Publication date: June 29, 2017Applicant: Océ-Technologies B.V.Inventors: Wilhelmus J.E.G. VERHOFSTAD, Henricus A.M. JANSSEN, Maurice J.C. LEMMENS, Marco KEMP, Hermanus P.H.M. VAN RHEE
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Patent number: 9649860Abstract: A printer is provided for forming a phase change inkjet image on a print substrate. The printer includes a sheet transport unit for advancing the sheet along a print station. The sheet transport unit includes a sheet support platen, a sheet attraction mechanism and a feed mechanism. The sheet support platen includes a print surface for supporting a contact side of the print substrate. The sheet attraction mechanism is arranged for attracting the print substrate to the print surface. The feed mechanism is arranged for advancing the print substrate in a transport direction over the print surface, wherein the feed mechanism is arranged upstream of the print surface. The print station includes a print head assembly, the print head assembly being arranged for providing ink droplets for forming the phase change inkjet image on a process side of the print substrate, the print substrate being arranged on a print area of the print surface, the process side being opposite to the contact side.Type: GrantFiled: November 20, 2015Date of Patent: May 16, 2017Assignee: OCE-TECHNOLOGIES B.V.Inventors: Lodewijk T. Holtman, Henricus A. M. Janssen
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Publication number: 20160144637Abstract: A printer is provided for forming a phase change inkjet image on a print substrate. The printer includes a sheet transport unit for advancing the sheet along a print station. The sheet transport unit includes a sheet support platen, a sheet attraction mechanism and a feed mechanism. The sheet support platen includes a print surface for supporting a contact side of the print substrate. The sheet attraction mechanism is arranged for attracting the print substrate to the print surface. The feed mechanism is arranged for advancing the print substrate in a transport direction over the print surface, wherein the feed mechanism is arranged upstream of the print surface. The print station includes a print head assembly, the print head assembly being arranged for providing ink droplets for forming the phase change inkjet image on a process side of the print substrate, the print substrate being arranged on a print area of the print surface, the process side being opposite to the contact side.Type: ApplicationFiled: November 20, 2015Publication date: May 26, 2016Applicant: Océ-Technologies B.V.Inventors: Lodewijk T. HOLTMAN, Henricus A.M. JANSSEN
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Patent number: 9278554Abstract: The present invention relates to a printer for forming a phase change inkjet image. The printer comprises a platen comprising a print surface, an advancing mechanism adapted for moving a print substrate in a transport direction over the print surface and a print station adapted for providing the phase change inkjet image on a first surface of the print substrate in a print area of the print surface. The advancing mechanism comprises a plurality of feed nips, said plurality of feed nips being arranged upstream of the print surface. Each of said plurality of feed nips comprising a feed roller which comprises a main rotational axis, wherein each main rotational axis of said plurality of feed nips is aligned with respect to each other in a second direction, which second direction is substantially perpendicular to the transport direction. The advancing mechanism further comprises a star wheel. Said star wheel is arranged in between two adjacent feed nips in the second direction and faces a support surface.Type: GrantFiled: April 15, 2015Date of Patent: March 8, 2016Assignee: OCE-TECHNOLOGIES B.V.Inventors: Lodewijk T. Holtman, Henricus A. M. Janssen
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Publication number: 20150298471Abstract: The present invention relates to a printer for forming a phase change inkjet image. The printer comprises a platen comprising a print surface, an advancing mechanism adapted for moving a print substrate in a transport direction over the print surface and a print station adapted for providing the phase change inkjet image on a first surface of the print substrate in a print area of the print surface. The advancing mechanism comprises a plurality of feed nips, said plurality of feed nips being arranged upstream of the print surface. Each of said plurality of feed nips comprising a feed roller which comprises a main rotational axis, wherein each main rotational axis of said plurality of feed nips is aligned with respect to each other in a second direction, which second direction is substantially perpendicular to the transport direction. The advancing mechanism further comprises a star wheel. Said star wheel is arranged in between two adjacent feed nips in the second direction and faces a support surface.Type: ApplicationFiled: April 15, 2015Publication date: October 22, 2015Applicant: Océ-Technologies B.V.Inventors: Lodewijk T. HOLTMAN, Henricus A.M. JANSSEN
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Patent number: 8651483Abstract: A sheet inverting device and a method of inverting a folded sheet include an inverting element that inverts the sheet around an axis of rotation towards a receiving member for receiving the sheet, and at least one moveable stop member that limits, in a first position of the stop member above the receiving member, an unfolding movement of the sheet in a direction towards a far side of the receiving member. The stop member is adapted to be retracted from the first position into a second position of the stop member.Type: GrantFiled: May 22, 2012Date of Patent: February 18, 2014Assignee: Oce Technologies B.V.Inventors: Antonius G. H. Albers, Henricus A.M. Janssen, Robertus P.C. Quirijnen
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Publication number: 20120235348Abstract: A sheet inverting device and a method of inverting a folded sheet include an inverting element that inverts the sheet around an axis of rotation towards a receiving member for receiving the sheet, and at least one moveable stop member that limits, in a first position of the stop member above the receiving member, an unfolding movement of the sheet in a direction towards a far side of the receiving member. The stop member is adapted to be retracted from the first position into a second position of the stop member.Type: ApplicationFiled: May 22, 2012Publication date: September 20, 2012Applicant: OCE TECHNOLOGIES B.V.Inventors: Antonius G. H. ALBERS, Henricus A.M. JANSSEN, Robertus P.C. QUIRIJNEN
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Patent number: 8055168Abstract: A magnet knife assembly for a toner developing device including a ferromagnetic strip held between like poles (N) of two permanent magnets such that a knife edge portion of the strip projects outwardly beyond the two magnets and is subject to a magnet force that tends to urge the strip in a direction in which the knife edge projects further out of the magnets, wherein the length of the strip is selected such that a portion of the strip opposite to the knife edge is subject to a magnetic force that at least counterbalances said magnetic force on the knife edge portion.Type: GrantFiled: December 3, 2008Date of Patent: November 8, 2011Assignee: Oce-Technologies B.V.Inventors: Paulus A. C. Groenen, Henricus A. M. Janssen
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Publication number: 20090148196Abstract: A magnet knife assembly for a toner developing device including a ferromagnetic strip held between like poles (N) of two permanent magnets such that a knife edge portion of the strip projects outwardly beyond the two magnets and is subject to a magnet force that tends to urge the strip in a direction in which the knife edge projects further out of the magnets, wherein the length of the strip is selected such that a portion of the strip opposite to the knife edge is subject to a magnetic force that at least counterbalances said magnetic force on the knife edge portion.Type: ApplicationFiled: December 3, 2008Publication date: June 11, 2009Inventors: Paulus A.C. Groenen, Henricus A.M. Janssen