Patents by Inventor Lucien A. Christiaen

Lucien A. Christiaen 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).

  • Web controlling apparatus
    Patent number: 4385716
    Abstract: An apparatus for controlling an outgoing web leaving an air cushion turning bar, which enables a convenient transport of longitudinally curved webs over such air turning bar. The apparatus comprises at least one axially displaceable roller adapted to be moved laterally upon a deviation in the web to bring the same to its outgoing path, and a second roller capable of bodily tilting movement and preferably axial movement as well, to differentially lengthen the path of the web edge margin remote from the direction of deviation.
    Type: Grant
    Filed: December 30, 1980
    Date of Patent: May 31, 1983
    Assignee: AGFA-Gevaert N.V.
    Inventors: Joseph I. De Roeck, Eric J. Blondeel, Lucien A. Christiaen
  • Method for the continuous coating of webs having spliced joints
    Patent number: 4269647
    Abstract: Defects in the coating of webs with aqueous solutions of hydrophilic colloids traceable to the effects of web splices are reduced. The webs are butt-joined by a splicing tape applied to their back side and are provided with a hydrophobic coating over their front side at the splicing region. The invention is particularly advantageous in the manufacture of photographic material.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: May 26, 1981
    Assignee: AGFA-GEVAERT N.V.
    Inventors: Paul A. Verkinderen, Ludovicus H. Verhoeven, Lucien A. Christiaen, Camille F. Pira, Michel L. Marckx