Patents by Inventor Ireneus H. T. Fierkens

Ireneus H. T. Fierkens 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).

  • Method of cleaving a brittle plate and device for carrying out the method
    Patent number: 5132505
    Abstract: A method and a device for cleaving a plate of a brittle material, such as, for example, glass, by means of a radiation beam repeatedly moving over the plate. The radiation beam is repeatedly passed over a desired track until the plate has been cleaved along a desired line of rupture of the plate.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: July 21, 1992
    Assignee: U.S. Philips Corporation
    Inventors: Maarten H. Zonneveld, Jacobus N. Dekker, Gerrit C. Verkade, Ireneus H. T. Fierkens, Theodorus J. M. J. Van Gennip
  • Method of severing a plate of brittle material
    Patent number: 5084604
    Abstract: The invention relates to a method of asymmetrically severing a plate (3) of brittle material, in which by means of a heat source (5) a thermal load is provided along a heating track asymmetrically with respect to the desired cutting line (7) and the plate (3) is severed along the desired cutting line (7).
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: January 28, 1992
    Assignee: U.S. Philips Corporation
    Inventors: Jacob N. Dekker, Maarten H. Zonneveld, Ireneus H. T. Fierkens, Theodorus J. M. J. van Gennip, Peter L. Holster