Patents by Inventor Hans Reiner Stampfer

Hans Reiner Stampfer 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).

  • Device for multifoaming of expandable plastics
    Patent number: 6634624
    Abstract: A device for multifoaming expandable plastics, such as, for instance, EPS, EPE, EPP or polymer mixtures, includes at least one storage or supply assembly and a foaming vessel for the discontinuous or batchwise afterfoaming of the prefoamed expandable plastics, whereby precisely adjustable bulk densities are attainable in an afterfoaming procedure while observing tight environmental conditions.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: October 21, 2003
    Assignee: Hirsch Maschinenbau GmbH & Co. KG.
    Inventor: Hans Reiner Stampfer
  • Method and device for multifoaming of expandable plastics
    Publication number: 20020058717
    Abstract: In a process for multifoaming expandable plastics, such as, for instance, EPS, EPE, EPP or polymer mixtures, with prefoaming being effected in a first step and afterfoaming of already prefoamed material being effected in at least one further step, it is provided that discontinuous or batchwise foaming is carried out as final afterfoaming. A device for multifoaming expandable plastics, such as, for instance, EPS, EPE, EPP or polymer mixtures, includes at least one storage or supply means and a foaming vessel for the discontinuous or batchwise afterfoaming of the prefoamed expandable plastics, whereby precisely adjustable bulk densities are attainable in an afterfoaming procedure while observing tight environmental conditions.
    Type: Application
    Filed: January 15, 2002
    Publication date: May 16, 2002
    Applicant: Hirsch Maschinenbau GmbH & Co. KG.
    Inventor: Hans Reiner Stampfer
  • Method and device for multifoaming of expandable plastics
    Patent number: 6348511
    Abstract: A process for multifoaming expendable plastics, such as, for instance, EPS, EPE, EPP or polymer mixtures, wherein prefoaming is effected in a first step and after foaming of already prefoamed material is effected in at least one further step. The process also provides that discontinuous or batchwise foaming is carried out as final afterfoaming.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: February 19, 2002
    Assignee: Hirach Maschinenbau GmbH & Co. KG.
    Inventor: Hans Reiner Stampfer