Garbage suction plant
US4108498A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1976 |
| Grant date | Aug 22, 1978 |
| Priority date | — |
| Expiry date | Mar 22, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/88062
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A garbage suction system having a number of chutes connected to a common horizontal main transport duct, leading to a collection centre having a suitable air suction means, is provided with specially constructed air inlet valves at selected locations. Each chute is provided with a fork type obstruction at the bottom to loosely suspend the garbage, and the air inlet valves are located in the main transport duct at locations such that at least one chute is between the valve and the suction means. In operation a valve will first sense the suction effect and open the transport duct to the atmosphere, thereby providing a sufficient pressure drop across the garbage loosely suspended in a chute so as to cause the restrained garbage to be sucked away. The valve is provided with an automatic closing means so that the operating sequence may be then repeated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.