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. 15, 2009
Filed:
Mar. 03, 2005
Applicants:
Mario Bechtold, Hemhofen, DE;
Stefan Nunninger, Erlangen, DE;
Johannes Reinschke, Nürnberg, DE;
Inventors:
Assignee:
BSH Bosch und Siemens Hausgeraete GmbH, Munich, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01B 5/00 (2006.01); H02K 33/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A reversing linear drive which comprises a field coil and a magnetic armature that is excited by the magnetic field of the field coil to perform a linear, axially oscillating movement. In order to detect the armature position, the drive is provided with a stripe pattern element with an alternating arrangement of transparent and opaque stripes or of light-reflecting stripes and non-light-reflecting stripes which extends at least across the entire axial armature stroke, and with a light barrier with elements that emit and receive light in a direction perpendicular to the axial direction.