Patents by Inventor Roelof Steunenberg

Roelof Steunenberg 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: 9333657
    Abstract: A safety razor apparatus having a blade assembly comprising two guiding members, each having a surface for abutting against the skin, and one or more blades located between the two guiding members (9,10), wherein the cutting edge of each blade and the surfaces are positioned substantially in one plane. The apparatus has a grip portion being pivotal relative to said blade assembly about a pivot axis, wherein the pivot axis is positioned parallel to the cutting edge. A location of the pivot axis is adjustable with respect to the blade assembly.
    Type: Grant
    Filed: January 4, 2005
    Date of Patent: May 10, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Willem Auke Westerhof, Robert Alexander Van Eibergen Santhagens, Everhardus Johannes Hoexum, Ype Bernardus Brada, Roelof Steunenberg, Dirk Hendrik Wevers
  • Patent number: 7797834
    Abstract: A device for shaving hairs growing from skin including a base portion having a grip, a shaving head which carries at least one cutting member having at least one cutting edge, and an actuator for effecting a periodical motion of the cutting member relative to the base portion to improve the cutting action of the cutting member. The shaving head is pivotable relative to the base portion about a pivot axis and the periodical motion of the cutting member is a periodical motion relative to the shaving head. The position and orientation of the geometrical path of the periodical motion of the cutting member relative to the skin is well-defined, so that the risk of skin irritations and skin injuries is considerably reduced.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: September 21, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Roelof Steunenberg, Peter Hans Van Der Vlis, Robert Alexander Van Eibergen Santhagens, Marinus Christiaan Hansen, Marc Alexander Pastoors, Dirk Hendrik Wevers, Aafje Gijsbertha Koster, Gerardus Joannes Henricus Roddeman, Richard Pieter Ophof, Hendrik Klaas Paauw, Gerben Raap, Raymond Wilhelmus Louis Lafarre, Johannes Cornelius Antonius Muller
  • Patent number: 7251894
    Abstract: The invention relates to a device (1) for shaving hair (93) and to a device having a shaving head (9). The shaving head (9) has at least one cutting member (17, 19) having a cutting edge (23) and a cutting direction (X), and the device has an actuator (29) for effecting a periodical motion of the cutting member relative to a base portion (3) of the device. According to the invention the periodical motion is effected in an imaginary plane which extends transversely to the cutting edge (23) and which has a first motion portion (89) and a second motion portion (91) following the first motion portion. The first motion portion is mainly directed in the cutting direction (X), and the second motion portion is mainly directed opposite to the cutting direction and is closer to the skin (93) than the first motion portion.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: August 7, 2007
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Jasper Zuidervaart, Fokke Roelof Voorhorst, Roelof Steunenberg, Peter Hans Van Der Vlis, Robert Alexander Van Eibergen Santhagens, Dirk Hendrik Wevers, Willem Auke Westerhof
  • Publication number: 20070151106
    Abstract: The invention relates to a device (1) for shaving hairs growing from skin (27). The device comprises a base portion (3) having a grip (5). The device further comprises a shaving head (7) which carries at least one cutting member (9, 11) having at least one cutting edge (13, 15). The device has an actuator (35) for effecting a periodical motion (P) of the cutting member relative to the base portion in order to improve the cutting action of the cutting member. According to the invention, the shaving head (7) is pivotable relative to the base portion (3) about a pivot axis (25), and the periodical motion (P) of the cutting member (9, 11) is a periodical motion relative to the shaving head. As a result, the position and orientation of the shaving head relative to the skin (27) are less dependent on the manner in which the user holds the device (1) in his hand and positions the device relative to the skin.
    Type: Application
    Filed: December 1, 2004
    Publication date: July 5, 2007
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Roelof Steunenberg, Peter Van Der Vlis, Robert Van Eibergen Santhagens, Marinus Hansen, Marc Pastoors, Dirk Wevers, Aafje Koster, Gerardus Roddeman, Richard Ophof, Hendrik Paauw, Gerben Raap, Raymond Lafarre, Johannes Muller
  • Publication number: 20070151107
    Abstract: A safety razor apparatus having a blade assembly (2) comprising two guiding members (9,10), each having a surface for abutting against the skin, and one or more blades (11,12,13) located between said two guiding members (9,10), wherein the cutting edge (14) of each blade (11,12,13) and said surfaces are positioned substantially in one plane. The apparatus has a grip portion (1) being pivotal relative to said blade assembly (2) about a pivot axis (8), wherein the pivot axis (8) is positioned parallel to said cutting edge (14). A location of said pivot axis (8) is adjustable with respect to said blade assembly (2).
    Type: Application
    Filed: January 4, 2005
    Publication date: July 5, 2007
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Willem Westerhof, Robert Van Eibergen Santhagens, Everhardus Hoexum, Ype Brada, Roelof Steunenberg, Dirk Wevers
  • Publication number: 20050252005
    Abstract: The invention relates to a device (1) for shaving hair (93) and to a shaving head (9) used therein. The shaving head (9) has at least one cutting member (17, 19) having a cutting edge (23) and a cutting direction (X), and the device has an actuator (29) for effecting a periodical motion of said cutting member relative to a base portion (3) of the device. According to the invention said periodical motion is effected in an imaginary plane which extends transversely to the cutting edge (23) and which has a first motion portion (89) and a second motion portion (91) following the first motion portion. The first motion portion is mainly directed in the cutting direction (X), and the second motion portion is mainly directed opposite to the cutting direction and is closer to the skin (93) than the first motion portion. Said periodical motion results in a reduced risk of skin irritations and skin injuries and provides a smooth shaving result.
    Type: Application
    Filed: July 14, 2003
    Publication date: November 17, 2005
    Inventors: Jasper Zuidervaart, Fokke Voorhorst, Roelof Steunenberg, Peter Van Der Vlis, Robert Van Eibergen Santhagens, Dirk Wevers, Willem Westerhof