Drive device without transmission for producing an elliptical shaking movement
US4212731A · kind A · utility
17Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1978 |
| Grant date | Jul 15, 1980 |
| Priority date | — |
| Expiry date | Jul 7, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18344
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A drive device for oscillating a spring-suspended device, such as a sieve or transport device, into an elliptical translational movement with a minimum of rotation. Two unequal and eccentrically arranged oscillation masses, rotatably fixed to the device, are rotationally driven each by a motor independent of the other. If the axes of rotation for the two masses are arranged in a certain geometry relative to the center of mass, the device will oscillate with a substantially pure translational, elliptical movement free of tipping movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.