Patents by Inventor Charles C. Kolbach

Charles C. Kolbach 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).

  • Patent number: 4016628
    Abstract: An absorbent article includes an air-laid fibrous web having a medial portion of a greater basis weight than flanking end and side portions. The fibers forming one surface of the web are adhesively bonded together to provide an abrasion resistant, nonpilling, facing layer, and also to aid in maintaining the structural integrity of the web. The fibers forming the other surface of the web are either adhesively bonded together, or a separate backing sheet, preferably in the form of a water-proof plastic sheet, is adhered directly to the other surface of the web to form a stabilized backing layer. The above contructions are adapted for use as disposable diapers.Apparatus of this invention includes a vacuum box having an open end underlying a discrete section of a foraminous forming surface so that regions of the forming surface extend beyond the open end of the vacuum box.
    Type: Grant
    Filed: August 12, 1974
    Date of Patent: April 12, 1977
    Assignee: Scott Paper Company
    Inventor: Charles C. Kolbach