Patents by Inventor Ronald Albert Plantinga

Ronald Albert Plantinga 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).

  • Induction ironing system
    Patent number: 8481891
    Abstract: An ironing system (500) comprises an iron (510) with a soleplate (512) comprising an induction heatable material. The ironing system (500) further comprises a unit (520, 530) that includes at least one induction coil (540) and a device (550). The induction coil (540) charges the iron (510) whereas the device (550) detects the temperature of the soleplate (512) by sensing a change in current flowing through the induction coil (540) or by sensing a change in voltage across the induction coil (540). The current or voltage changes as self inductance of the induction coil (540) changes with magnetic permeability of the soleplate (512) as a function of its temperature. The device (550) switches the induction coil (540) on or off depending on the detected temperature.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: July 9, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Chandra Mohan Janakiraman, Job Jan Van Der Burg, Yong Jiang, Ronald Albert Plantinga
  • Fastening device for system irons
    Patent number: 8266829
    Abstract: A system iron comprises an iron and a base that has a receiving area for receiving the iron. The base comprises a fastening device for fastening the iron to the base. The fastening device includes a first engagement member and a second engagement member arranged at mutually opposite sides of the receiving area. At least one of the engagement members is displaceable in a direction away from the other engagement member and is biased towards the other engagement member. With such a fastening device, a user can safely and conveniently lock the iron to the base using just one of his hands for gripping the main grip portion of the iron.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: September 18, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Mun Thoh Ma, Chandra Mohan Janakiraman, Ronald Albert Plantinga, L Bouhuys, Wa Chu
  • FASTENING DEVICE FOR SYSTEM IRONS
    Publication number: 20100199529
    Abstract: A system iron comprises an iron and a base that has a receiving area for receiving the iron. The base comprises a fastening device for fastening the iron to the base. The fastening device includes a first engagement member and a second engagement member arranged at mutually opposite sides of the receiving area. At least one of the engagement members is displaceable in a direction away from the other engagement member and is biased towards the other engagement member. With such a fastening device, a user can safely and conveniently lock the iron to the base using just one of his hands for gripping the main grip portion of the iron.
    Type: Application
    Filed: May 30, 2008
    Publication date: August 12, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Mun Thoh Ma, Chandra Mohan Janakiraman, Ronald Albert Plantinga, L. Bouhuys, Wa Chu