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:
Nov. 24, 2020
Filed:
Aug. 14, 2017
John E Miesner, Fairfax, VA (US);
John E Miesner, Fairfax, VA (US);
Abstract
The invention is an electromagnetic inertial force generator that provides a linear output with improved compactness and reliability because it has no radial gaps and only on pair of axial gaps. Radial permanent magnet rings are directly in contact with inner and outer flux cylinders to provide magnetic bias. The magnetic bias flux flows across two axial air gaps to a supporting flux return structure. A current conducting coil drives magnetic flux across the same axial air gaps. The magnetic bias flux is in opposite directions across the two air gaps while the coil flux across the two gaps is in the same direction. The combination of bias flux and coil flux cancels in one gap and add in the other gap producing a net force on an inertial mass and an equal and opposite force on the supporting structure. The resulting force is linear with current through the drive coil.