Patents by Inventor Hubert Upmann

Hubert Upmann 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 wrapping articles in plastic
    Patent number: 5123230
    Abstract: A method of wrapping articles in plastic, whereby the cross-section of the article dictates variations in the length of plastic web required at various times, with a mechanical wrapper that revolves around the article and has at least one take-off cylinder rotating at a rate controlled in accordance with a sequence of values that depends on the article's cross-section, and releasing plastic in the length required at a particular time. The sequence of values exploited for controlling the take-off cylinder (7) is determined during at least the first revolution of the winder (5) by measuring the stress on the web downstream of the take-off cylinder in the accordance with the angle (.PHI.) of the winder, is stored in a memory (15), and is appropriately standardized for varying the rate of rotation of the take-off cylinder.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: June 23, 1992
    Assignee: B. Hagemann Gmbh & Co.
    Inventor: Hubert Upmann