Reciprocating workpiece device with a drive system seeking the resonance of the driven system portion thereof
US8418300B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2006 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Sep 12, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A workpiece system with a reciprocating motion which includes a motor assembly for producing an output drive signal with a periodic force pulse. The drive signal is coupled to a driven member assembly through a magnetic arrangement, wherein the driven member assembly has a workpiece mounted thereon with a return spring assembly. The driven member assembly has a resonant mechanical frequency. As the RPM of the motor increases from zero following startup, the drive signal frequency increases to the point very near resonance, where the energy from the drive signal is transferred into the reciprocating motion of the driven assembly, producing an effective amplitude of workpiece motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.