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:
Aug. 30, 1988
Filed:
Jul. 29, 1986
Peter Obermann, Erlangen, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
A frontal magnetic rotational coupling for transmitting torque from a first enclosure to a second enclosure, said enclosures being hermetically separated from each other by an isolating wall. A plate affixed directly above a magnet attached to a rotatable shaft in one enclosure of the coupling is employed to magnetically provide bearing load relief. Axial force exerted upon the magnet from the other enclosure is compensated for by the magnetic field of the magnet itself, due to the return flux path provided by the plate. A miniaturized form of construction results which is of particular advantage when the frontal magnetic rotational coupling is used, for example, in an implantable medication dispensing device.