Patents by Inventor John Patrick Quitter

John Patrick Quitter 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).

  • Depth and breakthrough detection for laser machining
    Patent number: 8525073
    Abstract: A system comprises a working laser beam, a sensing laser beam, first and second optical elements, an optical sensor, an aperture and a controller. The first optical element generates a coaxial beam from the working laser beam and the sensing laser beam. The second optical element focuses the coaxial beam onto a workpiece, such that the working laser beam machines the workpiece and the sensing laser beam reflects from the workpiece. The optical sensor senses an intensity of the reflected sensing beam. The aperture determines a focus position by translating along the reflected sensing beam, such that the reflected intensity is maximized. The controller determining a machining parameter of the working laser beam, based on the focus position.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: September 3, 2013
    Assignee: United Technologies Corporation
    Inventors: John Patrick Quitter, Chester E. Yaworsky, Jr., Hai-Lung Tsai
  • DEPTH AND BREAKTHROUGH DETECTION FOR LASER MACHINING
    Publication number: 20110180521
    Abstract: A system comprises a working laser beam, a sensing laser beam, first and second optical elements, an optical sensor, an aperture and a controller. The first optical element generates a coaxial beam from the working laser beam and the sensing laser beam. The second optical element focuses the coaxial beam onto a workpiece, such that the working laser beam machines the workpiece and the sensing laser beam reflects from the workpiece. The optical sensor senses an intensity of the reflected sensing beam. The aperture determines a focus position by translating along the reflected sensing beam, such that the reflected intensity is maximized. The controller determining a machining parameter of the working laser beam, based on the focus position.
    Type: Application
    Filed: January 27, 2010
    Publication date: July 28, 2011
    Applicant: United Technologies Corporation
    Inventors: John Patrick Quitter, Chester E. Yaworsky, JR., Hai-Lung Tsai