The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 07, 2010
Filed:
May. 22, 2008
Mathias Jotter, Eutin, DE;
Borgar Pfeiffer, Klausdorf, DE;
Manfred Rufer, Bosau, DE;
Jens Storjohann, Hamburg, DE;
Wolfram Heisen, Lütjenburg, DE;
Mathias Jotter, Eutin, DE;
Borgar Pfeiffer, Klausdorf, DE;
Manfred Rufer, Bosau, DE;
Jens Storjohann, Hamburg, DE;
Wolfram Heisen, Lütjenburg, DE;
Kuhnke Automation GmbH & Co. KG, Malente, DE;
Abstract
An actuation magnet is provided for moving a closure needle of a hot-runner nozzle of an injection molding tool. The actuation magnet has an armature which is coupled in movement to the closure needle and may be displaced between first and second cores by subjecting at least one coil to current. A permanent magnet is arranged in a manner such that it exerts an additional magnetic force on the armature in at least one, preferably two, movement directions.