Patents by Inventor Ronald D. Agronin

Ronald D. Agronin 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 and apparatus for temperature gradient calendering
    Patent number: 4606264
    Abstract: A web of paper or similar material is subjected to at least one nip formed by an iron roll and a compliant roll. The iron roll is heated to a temperature of at least the temperature at which the fibers in the web begin to deform. In the case of paper this is approximately 350.degree. F. Preferably the web is passed through two nips the first nip polishing one side of the web, the second nip polishing the other side. The result is a web having improved gloss without substantial loss of bulk and with minimum mottling.
    Type: Grant
    Filed: January 4, 1985
    Date of Patent: August 19, 1986
    Assignee: Wartsila-Appleton, Incorporated
    Inventors: Ronald D. Agronin, Paul J. Klemmer
  • Method and apparatus for calendering a web
    Patent number: 4480537
    Abstract: The invention comprises a method and apparatus for accurately calendering a web of material, such as paper. Zone control rolls of variable geometric profile are provided for a super calender at the top and bottom nips. The upper zone control roll has its geometric profile along the nip altered as a function of web caliper. The bottom zone control roll has its geometric profile altered as a function of temperature measured at the bottom compliant roll of the super calender.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: November 6, 1984
    Inventors: Ronald D. Agronin, Paul J. Klemmer