Patents Assigned to Siegfried Hofmann GmbH
  • Patent number: 12365121
    Abstract: A device for processing a particle foam material for producing a particle foam moulded part, comprising: at least one die apparatus, comprising a first die element and at least one additional die element, wherein the first die element is mounted so as to be movable along a movement axis relative to the at least one additional die element and/or the at least one additional die element is mounted so as to be movable along the or at least one movement axis relative to the first die element; at least one drive apparatus which is or can be assigned to the at least one die apparatus and is configured for generating and/or transmitting a drive force that sets the first die element and/or the at least one additional die element into a movement along the movement axis, wherein the least one drive apparatus is designed as or comprises a linear-drive apparatus.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: July 22, 2025
    Assignee: Siegfried Hofmann GmbH
    Inventors: Johannes Schütz, Michael Deuerling, Stefan Mahr, Patrick Fischer, Peter Körber, Kai Faulhaber, Edin Pachadjioski
  • Patent number: 12246387
    Abstract: Device (1) for displacing at least one assembly (2, 2?) between a provisioning zone (3) and a working zone (4) of at least one process chamber (5) of a process chamber apparatus (6) for soldering, in particular for reflow soldering, comprising at least one displacement device (7), wherein the at least one assembly (2, 2?) carries out, at least in sections, a displacement movement (9), or such a displacement movement (9) can be carried out, such that the at least one assembly (2, 2?) is displaced by means of a force (8), in particular pushing force, which is transmitted or generated by the displacement device (7), in particular directly, and acts on the assembly (2, 2?).
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: March 11, 2025
    Assignee: Siegfried Hofmann GmbH
    Inventors: Daniel Feseker, Michael Deuerling, Michael Förste, Kai Fuhrmann, Johannes Günther, Benedikt Bechmann, Heinz Nolden
  • Publication number: 20230302693
    Abstract: Method for controlling the operation of a device for producing a particle foam component, wherein the device includes at least one function unit, which is controllable during its operation in respect of at least one target value. The method includes selecting, selection, on the basis of at least one selection criterion, of a control parameter set from a data storage unit, in which a plurality of control parameter sets are stored, which each has at least one control parameter for controlling the operation of at least one function unit of the device in respect of at least one target value; and applying the at least one selected control parameter set to control the operation of the device, in particular to control the operation of the function unit of the device affected by the particular control parameter set.
    Type: Application
    Filed: June 2, 2021
    Publication date: September 28, 2023
    Applicant: Siegfried Hofmann GmbH
    Inventors: Johannes SCHÜTZ, Patrick FISCHER
  • Patent number: 9568393
    Abstract: A device is provided for the early detection of crack formations in work pieces or in components that are subjected to mechanical loading. Wherein in the region of at least one surface at risk of cracking there is arranged at least one testing chamber that is formed by a generative process of manufacturing the work piece or a portion of a work piece and to which a testing medium under pressure is admitted. Either a pressure sensor for determining a drop in pressure resulting from a crack formation of the work piece is connected to the testing chamber or a gas sensor that can also react to a testing medium escaping from the testing chamber in the event of crack formation is arranged in the vicinity of the testing chamber.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: February 14, 2017
    Assignee: Werkzeugbau Siegfried Hofmann GmbH
    Inventors: Michael Dinkel, Stefan Hofmann