Patents by Inventor Hellmuth Stachel

Hellmuth Stachel 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).

  • Patent number: 6748633
    Abstract: An apparatus is described for needling a non-woven material with a support (3) which receives at least one needleboard (1) and is drivable in a reciprocating fashion both in the needle-penetration direction (5) as well as the direction of passage (6) of the non-woven material and on which are coupled the connecting rods (10) of two oppositely drivable eccentric drives (8, 9) for the drive in the needle-penetration direction (5) and on which there acts at least one additional eccentric drive (12).
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: June 15, 2004
    Assignee: Textilmaschinenfabrik Dr. Ernst Fehrer Aktienegesellschaft
    Inventors: Ludwig Legl, Hellmuth Stachel
  • Publication number: 20020162203
    Abstract: An apparatus is described for needling a non-woven material with a support (3) which receives at least one needleboard (1) and is drivable in a reciprocating fashion both in the needle-penetration direction (5) as well as the direction of passage (6) of the non-woven material and on which are coupled the connecting rods (10) of two oppositely drivable eccentric drives (8, 9) for the drive in the needle-penetration direction (5) and on which there acts at least one additional eccentric drive (12).
    Type: Application
    Filed: April 18, 2002
    Publication date: November 7, 2002
    Applicant: Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft
    Inventors: Ludwig Legl, Hellmuth Stachel
  • Patent number: 6389665
    Abstract: The description relates to a facility for needling of fleece with at least one needle board driven to and fro in stitching direction, which can be additionally driven in pendulum fashion in fleece feed direction (15) by means of an eccentric drive, which is provided with a connecting rod (3) articulated to a rocker arm (4) and a connecting pitman (8) to the needle board effective on this connecting rod assembly. To be able to easily adjust the rocking amplitude of the needle board in fleece feed direction (15) it is suggested that the swivel bearing (5) of the rocker arm (4) is seated on a rotatable crank arm (6) and that, for adjustment of the rocking amplitude of the connecting pitman (8), the neutral rocking position of the rocker arm (4) is adjustable via the crank arm (6) between an end position essentially running in the direction of the connecting pitman (8) and an end position running transverse thereto.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: May 21, 2002
    Assignee: Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft
    Inventors: Helmut Fuchs, Robert Strasser, Hannes Pum, Günther Feyerl, Ludwig Legl, Hellmuth Stachel