Presses – Reciprocating press construction – With material depositing means
Patent
1973-10-12
1976-04-06
Wilhite, Billy J.
Presses
Reciprocating press construction
With material depositing means
100218, 100249, B30B 1530, B30B 1532
Patent
active
039481670
ABSTRACT:
Apparatus for transferring waste from the collection chamber of a suction waste-collection system into a wastetransport container in which the collection chamber is at the minimum absolute pressure of the system and in which the transport container is at atmospheric pressure. The apparatus includes a compaction chamber having an inlet which is opened to the collection chamber and an outlet which is opened to the transport container. Airtight means is provided to close the outlet when the inlet is opened and other airtight means is provided to close the inlet when the outlet is opened. Waste material entering the compaction chamber through the inlet is compacted before being discharged through the outlet. The compaction device includes the outlet closure means as a back-up device and a pressure plate operable to compress the waste against the outlet closure. Preferably, the pressure plate is mounted on the forward face of a piston which operates concurrently with the inlet closure so that displacement of the piston is accompanied by closure of the inlet whereby upon full displacement of the piston to compact the trash in the chamber, the inlet is closed to pressure communication, whereupon the outlet may be opened to permit discharge of the compressed trash through the outlet into the transport container. Three embodiments are shown in the drawings.
REFERENCES:
patent: 2252697 (1941-08-01), Brassart
patent: 2684802 (1954-07-01), Rothwell
patent: 2780987 (1957-02-01), Wall
patent: 3089410 (1963-05-01), Stangl
patent: 3513771 (1970-05-01), Felts
patent: 3583770 (1971-06-01), Medhammar
patent: 3621774 (1971-11-01), Dedio et al.
Aktiebolaget Svenska Flaktfabriken
Wilhite Billy J.
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