Adjustable tuning spring system for vibratory conveyor drives
US6201330A · kind A · utility
2Cited by
9References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2000 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Jan 18, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G27/32
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A spring coefficient adjustment system for a vibratory drive for use in driving a vibratory delivery apparatus. The drive includes an electromagnet and an associated armature spaced apart by a gap. In the drive, a plate is movable with respect to a frame. One of the electromagnet and the armature is connected to the frame and the respective other is connected to the spring plate. A primary spring is connected between the frame and the spring plate. A plurality of auxiliary elastomer shear springs are selectively engageable between the frame and the plate to change the total spring coefficient between the frame and the plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.