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:
Apr. 28, 2015
Filed:
Jun. 20, 2012
Nilesh D. Mankame, Ann Arbor, MI (US);
Paul E. Krajewski, Troy, MI (US);
Roy J. Mathieu, Rochester Hills, MI (US);
Albert H. Butlin, Jr., Beverly Hills, MI (US);
Paul W. Alexander, Ypsilanti, MI (US);
Nilesh D. Mankame, Ann Arbor, MI (US);
Paul E. Krajewski, Troy, MI (US);
Roy J. Mathieu, Rochester Hills, MI (US);
Albert H. Butlin, Jr., Beverly Hills, MI (US);
Paul W. Alexander, Ypsilanti, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A magnetic spring utilizing spatially modulated magnetic field patterns of magnetic regions for both stator and slider, allowing custom force curves over the range of motion. Also disclosed is a magnetic spring whose slider can be rotated relative to the stator on the axis, such that the alignment of the spatially modulated magnetic field patterns of the slider and the stator is altered, resulting in changeable force curve for the spring, selected by rotating the slider.