Patents Assigned to Angel Estrada & Cia
  • Folder sheets with reinforced holes, method and apparatus of making same
    Patent number: 7234288
    Abstract: A method of manufacturing folder sheets with reinforce holes, which comprises unwinding a spindled paper band; printing predetermined graphics on the paper band; causing the paper band to go through corona treatment; applying a reinforcement strip of thermoplastic material to selected areas of the paper band; cutting the printed and partially reinforced paper band in a direction substantially perpendicular to one edge of the paper band in such a fashion as to form a plurality of paper strips each having an elongated reinforced edge area; layering and counting the paper strips until they reach a predetermined number; punching the paper strips in the reinforced edge area in accordance with a predetermined pattern; cutting the punched paper strips in a direction substantially perpendicular to the direction of the first cutting to form a plurality of folder sheets; counting and piling the folder sheets to form a block until they reach a predetermined number; and packaging and boxing the folder sheet blocks.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: June 26, 2007
    Assignee: Angel Estrada & Cia
    Inventors: Ricardo Lebedevski, Jose Ramon Gallo
  • Folder sheets with reinforced holes, method and apparatus of making same
    Publication number: 20050086912
    Abstract: A method of manufacturing folder sheets with reinforce holes, which comprises unwinding a spindled paper band; printing predetermined graphics on the paper band; causing the paper band to go through corona treatment; applying a reinforcement strip of thermoplastic material to selected areas of the paper band; cutting the printed and partially reinforced paper band in a direction substantially perpendicular to one edge of the paper band in such a fashion as to form a plurality of paper strips each having an elongated reinforced edge area; layering and counting the paper strips until they reach a predetermined number; punching the paper strips in the reinforced edge area in accordance with a predetermined pattern; cutting the punched paper strips in a direction substantially perpendicular to the direction of the first cutting to form a plurality of folder sheets; counting and piling the folder sheets to form a block until they reach a predetermined number; and packaging and boxing the folder sheet blocks.
    Type: Application
    Filed: September 13, 2004
    Publication date: April 28, 2005
    Applicant: Angel Estrada & Cia
    Inventors: Ricardo Lebedevski, Jose Gallo