Abstract The invention is concerned with transport of refuse and the like by means of a suction or vacuum pipe system through which the refuse or the like is conveyed from a place of supply to a collecting container or silo where the refuse is separated from the entrained conveying suction air and removed from this collecting container. According to the invention the refuse or the like is removed from the collecting container at the same time, or substantially the same time, as new refuse is drawn into the container or silo while the subatmospheric pressure is still acting, said system being under the action of said subatmospheric pressure or vacuum while being substantially closed from the outer atmosphere in order to operate essentially continuously. According to one embodiment of the invention the separated refuse or the like is compacted or compressed preferably in connection with its being removed from said collecting container.
Apparatus for suction transportation of material such as refuse comprising: a pipe adapted to convey material in an airstream from a place of material supply; a collecting silo connected in communication with the pipe for separating the transported material from the airstream and collecting the material, a vacuum source connected to said silo tO draw the refuse through said pipe, said silo having a refuse outlet selectively closeable by means of a first closure member; a removable container having an inlet detachably connectable to said outlet, a second closure member in said inlet adapted to cooperate with said first closure member for permitting transfer of material from the silo to the container under subatmospheric pressure when both said closure members are open and for preventing leakage of air into the silo when said closure members are closed during removal of the container from the silo; and mechanical transfer means for transferring material from the silo to the container.
Claim 2
Dependent Claim
158 words
Apparatus for suction transportation of material such as refuse comprising: a pipe adapted to convey material in an airstream from a place of material supply; a collecting silo connected in communication with the pipe for separating the transported material from the airstream and collecting the material, a vacuum source connected to said silo tO draw the refuse through said pipe, said silo having a refuse outlet selectively closeable by means of a first closure member; a removable container having an inlet detachably connectable to said outlet, a second closure member in said inlet adapted to cooperate with said first closure member for permitting transfer of material from the silo to the container under subatmospheric pressure when both said closure members are open and for preventing leakage of air into the silo when said closure members are closed during removal of the container from the silo; and mechanical transfer means for transferring material from the silo to the container.
Claim 3
Dependent Claim
25 words
The apparatus of claim 1 wherein said transfer means is a piston slideable in said silo, the piston also being adapted to compress the material.
Claim 4
Dependent Claim
22 words
Apparatus according to claim 2 wherein the piston is normally located in a housing in communication with the interior of the silo.