Patents by Inventor Istvan M. Ulvros

Istvan M. Ulvros 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: 4698514
    Abstract: A method and an arrangement is disclosed for the detection by photoelectric means of markings made on a printed, decorated material web. The markings comprise two groups of stroke markings, the markings of a first group being arranged to be sensed by a first photocell element, which, on sensing the first group markings causes the output of a second photocell element, which senses the stroke markings of a second group of making to be fed into a memory unit for continuous comparison with a stored value. In response to the comparison, a control signal is generated to control the performance of various operations on the web.
    Type: Grant
    Filed: July 6, 1984
    Date of Patent: October 6, 1987
    Assignee: Tetra Pak International AB
    Inventors: Anders E. Hilmersson, Istvan M. Ulvros