Patents by Inventor David Muffler

David Muffler 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: 8362861
    Abstract: Electromagnetic actuator having an armature unit which is axially guided in a housing and movable by passing current through a coil device and in particular against a return force of a return spring out of a first stop position defined by means for limiting the stroke, the means for limiting the stroke having a stop element which is mounted terminally in the housing and manufactured by a shaping, stamping, sintering and/or injection molding method, and which is designed to cooperate with a plunger unit which can be actuated outside the housing and is designed for mechanically moving the armature out of the first stop position.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: January 29, 2013
    Assignee: ETO Magnetic GmbH
    Inventors: Andreas Martin, David Muffler, Ingo Bauerschmidt, Volker Knies
  • Patent number: 7768368
    Abstract: The invention relates to an electromagnetic actuating apparatus with an armature unit, which is guided axially in a housing and is capable of being moved by means of energizing a coil apparatus, contact plug means, which are held in an insulator unit, being associated with the coil apparatus, and an elongated ground contact of the contact plug means being electrically conductively connected to the housing, and the ground contact interacting electrically conductively at an engagement end which is opposite its free end with a yoke section, which is associated with the housing preferably at the front end, in such a way that, in a fitted state, a cutout formed in the engagement end in the ground contact engages over a projection of the yoke section and/or at least partially surrounds it.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: August 3, 2010
    Assignee: ETO Magnetic GmbH
    Inventors: David Muffler, Volker Knies, Ingo Bauerschmidt
  • Publication number: 20080246570
    Abstract: The invention relates to an electromagnetic actuating apparatus with an armature unit, which is guided axially in a housing and is capable of being moved by means of energizing a coil apparatus, contact plug means, which are held in an insulator unit, being associated with the coil apparatus, and an elongated ground contact of the contact plug means being electrically conductively connected to the housing, and the ground contact interacting electrically conductively at an engagement end which is opposite its free end with a yoke section, which is associated with the housing preferably at the front end, in such a way that, in a fitted state, a cutout formed in the engagement end in the ground contact engages over a projection of the yoke section and/or at least partially surrounds it.
    Type: Application
    Filed: April 2, 2008
    Publication date: October 9, 2008
    Applicant: ETO MAGNETIC GMBH
    Inventors: David Muffler, Volker Knies, Ingo Bauerschmidt
  • Publication number: 20080246568
    Abstract: Electromagnetic actuator having an armature unit which is axially guided in a housing and movable by passing current through a coil device and in particular against a return force of a return spring out of a first stop position defined by means for limiting the stroke, the means for limiting the stroke having a stop element which is mounted terminally in the housing and manufactured by a shaping, stamping, sintering and/or injection moulding method, and which is designed to cooperate with a plunger unit which can be actuated outside the housing and is designed for mechanically moving the armature out of the first stop position.
    Type: Application
    Filed: April 3, 2008
    Publication date: October 9, 2008
    Applicant: ETO Magnetic GmbH
    Inventors: Andreas Martin, David Muffler, Ingo Bauerschmidt, Volker Knies