Patents by Inventor Rudolf Schumacher

Rudolf Schumacher 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).

  • Apparatus and method for analyzing the amount of chemical substrates in a liquid
    Patent number: 6376255
    Abstract: The present invention relates to an apparatus and a method for analyzing the amount of chemical substrates in a liquid, more particularly in a clarified solution or a process water. The apparatus comprises a separate filtration housing in which a filter medium is arranged for arresting the filtrate supplied to an analyzer. Provided in the filtration housing is a gas supply means by means of which the filter medium is charged or flushed with a gas.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: April 23, 2002
    Assignee: WTW Wissenschaftlich-Technische Werkstaetten GmbH
    Inventors: Ulrich Schwab, Raimund Essel, Albert Saeuble, Rudolf Schumacher
  • Transparent, shrinkable film, consisting of one or several layers
    Patent number: 4486507
    Abstract: A transparent, shrinkable film composed of at least one layer which is a mixture of85-10 weight percent of a linear polyamide, linear copolyamide, or an elastomeric component, and15-90 weight percent of a partially aromatic polyamide or partially aromatic copolyamide.The films of the present invention can be shrunken at economically feasible temperatures, shrink in such a way so as not to damage the goods encased therein and also possess desirable transparency and gas permeability properties.
    Type: Grant
    Filed: May 5, 1982
    Date of Patent: December 4, 1984
    Assignee: Feldmuhle Aktiengesellschaft
    Inventor: Rudolf Schumacher