Calibrated device and method to detect material features on a spinning surface by generation and detection of gravito-magnetic energy
US9972354B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 15, 2016 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Apr 15, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/39
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A head-disk assembly device, “mass spin-valve” or “gravitational rectifier” and method of producing gravitomagnetic induction utilizing Nano-features fabricated on the surface of a hard disk is presented. The Nano-features may include Nano-bumps and Nano-pits. The device includes a computer hard disk, a piezoelectric glide head and/or a GMR read head, a typical hard drive's electronics, wherein defects are fabricated on the said disk using a Focused Ion Beam (FIB) by depositing requisite number of nanobumps of specified height, and etching equal number of nanopits of specified depth a few mils or mm apart on a pre-decided radius. By spinning the said nano-features disk produce (1) an associated mechanical force utilizing a piezoelectric glide head and/or (2) an associated magnetic force utilizing a GMR read head for (a) general use in surface characterization work and (b) for producing power by the presence or the absence of matter on a spinning disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.