Patents by Inventor John PRAGT

John 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).

  • Patent number: 12521899
    Abstract: A hair-cutting unit (4) for use in a hair-cutting appliance comprises an external cutting member (5) having hair-entry openings in a cutting track surface (58), an internal cutting member (6) having at least one hair-cutting element and being movable with respect to the external cutting member (5), and a skin-supporting structure (7) having a skin-supporting surface (71) for contacting a portion of skin to be subjected to a hair-cutting action. The external cutting member (5) is displaceable relative to the skin-supporting structure (7), and the hair-cutting unit (4) further comprises a safety mechanism which is designed to enable stepped and instantaneous variation between at least two discrete stages of a level (lc) of the cutting track surface (58) with respect to a level (ls) of the skin-supporting surface (71), in relation to pressure exerted by the external cutting member (5) on the skin.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: January 13, 2026
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Mike Van Diest, John Pragt, Martijn Dirk Klein Horsman, Michael Reece Jenkins
  • Patent number: 12145283
    Abstract: 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: Grant
    Filed: June 30, 2020
    Date of Patent: November 19, 2024
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Luca Iaccarino, Britt Roumen, Martinus Bernardus Stapelbroek, Jan Bennik, John Pragt, Remy Amos Abraham Ripandelli, Robbert Freerk Johan Van Der Scheer, Albert Jan Aitink, Roland Van Straaten, Everhardus Johannes Hoexum, Jan Van Dalen
  • Patent number: 11691303
    Abstract: A hair cutting appliance includes a stationary blade having a first wall portion arranged to serve as a skin facing wall when in operation; and a second wall portion offset from the first wall portion such that the first and second wall portions a guide slot that receives a movable cutter blade. A toothed leading edge is jointly formed by the first and second wall portions. Teeth at the toothed leading edge include a first leg defined by the first wall portion, and a second leg defined by the second wall portion. The first and second wall portions are connected at a frontal end of the toothed leading edge, thereby forming tips of the teeth. The second legs of the teeth are tapered along a portion of their longitudinal extension towards a bottom side of the stationary blade facing away from the skin, when in operation.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: July 4, 2023
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Martinus Bernardus Stapelbroek, Jan Bennik, John Pragt, Remy Amos Abraham Ripandelli, Robbert Freerk Johan Van Der Scheer, Jan Van Dalen, Albert Jan Aitink, Roland Van Straaten, Everhardus Johannes Hoexum
  • Publication number: 20220339806
    Abstract: A hair-cutting unit (4) for use in a hair-cutting appliance comprises an external cutting member (5) having hair-entry openings in a cutting track surface (58), an internal cutting member (6) having at least one hair-cutting element and being movable with respect to the external cutting member (5), and a skin-supporting structure (7) having a skin-supporting surface (71) for contacting a portion of skin to be subjected to a hair-cutting action. The external cutting member (5) is displaceable relative to the skin-supporting structure (7), and the hair-cutting unit (4) further comprises a safety mechanism which is designed to enable stepped and instantaneous variation between at least two discrete stages of a level (lc) of the cutting track surface (58) with respect to a level (ls) of the skin-supporting surface (71), in relation to pressure exerted by the external cutting member (5) on the skin.
    Type: Application
    Filed: September 30, 2020
    Publication date: October 27, 2022
    Inventors: Mike VAN DIEST, John PRAGT, Martijn Dirk KLEIN HORSMAN, Michael Reece JENKINS
  • Publication number: 20200331156
    Abstract: 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: Application
    Filed: June 30, 2020
    Publication date: October 22, 2020
    Inventors: Luca IACCARINO, Britt ROUMEN, Martinus Bernardus STAPELBROEK, Jan BENNIK, John PRAGT, Remy Amos Abraham RIPANDELLI, Robbert Freerk Johan VAN DER SCHEER, Albert Jan AITINK, Roland VAN STRAATEN, Everhardus Johannes HOEXUM, Jan VAN DALEN