Swing gates
US4574989A · kind A · utility
9Cited by
8References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1982 |
| Grant date | Mar 11, 1986 |
| Priority date | — |
| Expiry date | Aug 2, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D90/582
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In a hopper or the like wherein the flow of particulate material is controlled by a gate the improvement wherein the gate is mounted to be swingable towards an open position within the hopper so as to break arches and rat holes which form in the material above the gate or a gate adjacent thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.