Patents by Inventor Albert Maas De Lange

Albert Maas De Lange 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: 9555551
    Abstract: 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: Grant
    Filed: December 24, 2012
    Date of Patent: January 31, 2017
    Assignee: 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
  • Publication number: 20150040403
    Abstract: 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: Application
    Filed: December 24, 2012
    Publication date: February 12, 2015
    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
  • Patent number: 8186064
    Abstract: 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: Grant
    Filed: March 18, 2005
    Date of Patent: May 29, 2012
    Assignee: 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