Patents by Inventor Helmut Echardt

Helmut Echardt 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).

  • Gas venting needle
    Patent number: 7179072
    Abstract: A gas venting needle for use in gas injection moulding the open end having a flow valve with no moving parts; the flow valve being provided by a plurality of individual flow channels sized such that in use gas may freely flow through these channels but liquid moulding material may not freely flow through.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: February 20, 2007
    Inventors: Gordon Frederick Smith, David George Head, Helmut Echardt
  • Gas venting needle
    Publication number: 20050079239
    Abstract: A gas venting needle for use in gas injection moulding the open end having a flow valve with no moving parts; the flow valve being provided by a plurality of individual flow channels sized such that in use gas may freely flow through these channels but liquid moulding material may not freely flow through.
    Type: Application
    Filed: May 12, 2004
    Publication date: April 14, 2005
    Inventors: Gordon Smith, David Head, Helmut Echardt