Patents by Inventor James A. Holler

James A. Holler 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 for separating a sheet from an array of sheets conveyed along a vacuum conveyor using diverting nozzles
    Patent number: 5354047
    Abstract: The instant invention provides a method for reliably separating a selected sheet from a spaced array of sheets transported on a conveyor. The invention continuously maintains vacuum on the conveyors, and uses selectively activated jets directed at the underside of the sheets to divert them for separating. The invention positively controls the destination of discrete, flexible sheets, such as photographic film, by continuously engaging the sheets with another conveyor during separating, sorting, shuffling or the like, as they travel in an array along a conveyor. Positive control of the sheets permits reliable, high speed separating of lightweight, flexible sheets.
    Type: Grant
    Filed: July 14, 1993
    Date of Patent: October 11, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Doyle D. Chesnutt, James A. Holler, William J. Hommes, Arnold C. Sheldon, II
  • Apparatus for separating a sheet from an array of sheets
    Patent number: 5295586
    Abstract: The instant invention provides an apparatus and method for reliably separating a selected sheet from a spaced array of sheets transported on a conveyor. The invention continuously maintains vacuum on the conveyors, and uses selectively activated jets directed at the underside of the sheets to divert them for separating. The invention positively controls the destination of discrete, flexible sheets, such as photographic film, by continuously engaging the sheets with another conveyor during separating, sorting, shuffling or the like, as they travel in an array along a conveyor. Positive control of the sheets permits reliable, high speed separating of lightweight, flexible sheets.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: March 22, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Doyle D. Chesnutt, James A. Holler, William J. Hommes, Arnold C. Sheldon, II
  • Method and apparatus for measuring coating thicknesses on continuously moving material
    Patent number: 4383172
    Abstract: A method and apparatus using radiation techniques for measuring coating thicknesses on continuously moving strip material as it travels along a predetermined path and without altering that path. A shuttle carrying a measuring probe having a radioactive isotope source and a detection device is provided in the path of the strip for reciprocation along a preselected segment of the path. The shuttle and the probe are releasably engaged with the strip and carried thereby for synchronous movement therewith in the direction of travel of the strip during a measurement cycle, and are disengaged from the strip when no measurement is being made, the movement of the shuttle then being controlled by an independent drive mechanism.
    Type: Grant
    Filed: January 23, 1981
    Date of Patent: May 10, 1983
    Assignee: Twin City International, Inc.
    Inventors: James A. Holler, William B. Stanton, Jerry J. Spongr, Boris B. Joffe, Peter W. Raffelsberger, John E. Tiebor