Patents by Inventor Horst Deckwerth

Horst Deckwerth 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 of blow molding hollow articles from thermoplastic synthetic resin
    Patent number: 6258301
    Abstract: A process for blow-molding hollow bodies from thermoplastic synthetic resin wherein, in addition to control to accurately position an extruder thermoplastic melt preform in the blow mold and to maintain a constant weight of the extruded preform, on the program curve which itself is a superimposition of the profile curve of the preform and a base gap determined in accordance with the nozzle gap width through which the preform is extruded, there is superimposed a correction strip which can be varied depending upon material distribution changes as a result, for example, of sag of the preform.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: July 10, 2001
    Inventors: Harald Feuerherm, Horst Deckwerth, Rolf Kappen-Feuerherm
  • Method of blow molding hollow articles from thermoplastic synthetic resin
    Patent number: 5840223
    Abstract: A process for blow-molding hollow bodies from thermoplastic synthetic resin wherein, in addition to control to accurately position an extruder thermoplastic melt preform in the blow mold and to maintain a constant weight of the extruded preform, on the program curve which itself is a superimposition of the profile curve of the preform and a base gap determined in accordance with the nozzle gap width through which the preform is extruded, there is superimposed a correction strip which can be varied depending upon material distribution changes as a result, for example, of sag of the preform.
    Type: Grant
    Filed: November 29, 1996
    Date of Patent: November 24, 1998
    Assignee: Harald Feuerherm
    Inventors: Harald Feuerherm, Horst Deckwerth, Rolf Kappen-Feuerherm