Patents by Inventor Stephan Erasmus

Stephan Erasmus 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 heating the paving screed of a road finisher and electrical heating means
    Patent number: 6421594
    Abstract: According to the method for heating the paving screed of a road finisher, said paving screed including a heating means with several heat elements being supplied with electric power from a rotary current generator and being switched on and off by means of a control device, at least two of said heating elements are switched on and switched off periodically and alternatingly in dependence from the operation temperature of said generator and/or the operation temperature of paving screed components contacting paving material. Said heating means comprises in its control device a microprocessor management section with a program for alternatingly switching between heating elements in cycles under consideration of a predetermined combination of operational parameters.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: July 16, 2002
    Assignee: Joseph Vogele AG
    Inventor: Stephan Erasmus