Non-linear spring system for vibrating equipment
US6107715A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1997 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Feb 24, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A spring system for a vibration driver provides a non-linear stiffening reaction force as the deflection of the spring system increases. In a vibration driver, particularly an electromagnetic vibration driver, a reciprocating plate provides opposing bumpers which engage opposing elastomer blocks alternately during the stroke of the plate. Elastomer blocks include on three or four sides an elastomer impregnated fabric. The fabric controls the bulging of the elastomer block during impact by the bumper, substantially changing the spring rate of the elastomer block, to increase the resonant frequency of the spring system as the machine stroke increases. Increasing resonant frequency controls the stroke amplitude of the plate for a consistent feed rate of resonant tuned vibratory material handling equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.