| Patent Number |
Title Of Patent |
Date Issued |
| 5078548 |
Method of and an installation for removing and transferring refuse |
January 7, 1992 |
| The invention relates to a method for removing and transferring refuse from serving trays which on conveyor belts are carried past different stations for removing dirty dishes, removing refuse and washing the trays. According to the invention a vacuum is produced in a suction nozzle |
| 4099457 |
Method for discharging refuse |
July 11, 1978 |
| A device for discharging refuse through a discharge pipe being in communication with a hopper having an outlet through which refuse is successively introduced into the discharge pipe from a vacuum transport system performs the following operations:A compactor gate is advanced into the di |
| 3977729 |
Outdoors refuse-receiving system |
August 31, 1976 |
| The invention refers to an outdoor refuse-receiving system comprising an underground suction conveying conduit connected to and forming part of a suction-operated refuse collecting system and a plurality of mutually spaced refuse-receiving chutes at least some of which are self-contained |
| 3953078 |
System of pneumatic transport of domestic refuse and the like |
April 27, 1976 |
| Refuse conveying suction systems for low-rise dwelling areas are operated by holding the receiving chutes closed to the atmosphere during suction periods and in permanently open communication with an underlying collecting conduit which is open to the atmosphere at one end and connect |
