US 5,355,789 AGranted

Refuse compression apparatus

AssigneeMatsushita Electric Industrial Co., Ltd.

InventorsJiro Suzuki, Takeshi Tomizawa, Tatsuo Fujita, Kunihiro Ukai

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Abstract

A refuse compression apparatus for reducing the volume of a thermal elastic refuse includes a telescopic refuse container which is covered by a bag and is housed in a cylindrical housing and suspended on the top of the cylindrical housing. A top cover box is coupled with the telescopic refuse container and the cylindrical housing so that the bag divides the inner space of the cylindrical housing into a free space inside the bag and an airtight space outside the bag. An air pump provided to connect the airtight space and the outside of the cylindrical housing operates to pressurize the airtight space and cause the bag to press the telescopic refuse container upwardly. Thus, the refuse placed in the telescopic refuse container is pressed against the lower surface of the top cover box and is compressed.

Claims21

Dependent claims

A refuse compression apparatus comprising:

a housing having a first open end and a peripheral edge formed about said first open end;
a bag disposed in said housing so as to divide an interior of said housing into a first space defined inside said bag and a second space defined outside said bag;
a volume changeable container disposed in said first space and being adapted to receive refuse;
a cover device mounted over said first open end of said housing and including a cover surface covering said first open end, said cover surface having at least one air passage formed therethrough in communication with an interior of said volume changeable container;
pressurizing means for increasing ambient pressure in said second space relative to ambient pressure in said first space;
and
hot air stream generation means for producing a heated air stream and causing the heated air stream to flow into said volume changeable container through said at least one air passage, said hot air stream generation means comprising a heater mounted to said cover device for producing heated air, and a fan operably communicated with said heater and said at least one air passage to blow the heated air through said at least one air passage and into said volume changeable container.

4 more elements

A refuse compression apparatus comprising:

a housing having a first open end and a peripheral edge formed about said first open end;
a bag disposed in said housing so as to divide an interior of said housing into a first space defined inside said bag and a second space defined outside said bag;
a volume changeable container disposed in said first space and being adapted to receive refuse;
a cover device mounted over said first open end of said housing and including a cover surface covering said first open end, said cover surface having at least one air passage formed therethrough in communication with an interior of said volume changeable container;
pressurizing means for increasing ambient pressure in said second space relative to ambient pressure in said first space;
and
wherein said volume changeable container comprises a plurality of sub-containers telescopically coupled together.

4 more elements

A refuse compression apparatus comprising:

a housing having a first open end and a peripheral edge formed about said first open end;
a bag disposed in said housing so as to divide an interior of said housing into a first space defined in said bag and a second space defined outside said bag;
a volume changeable container disposed inside said first space and being adapted to receive refuse;
a cover device mounted over said first open end of said housing and including a cover surface covering said first open end, said cover surface having at least one air passage formed therethrough in communication with an interior of said volume changeable container;
pressurizing means for increasing ambient pressure in said second space relative to ambient pressure in said first space;
an exterior housing for receiving said housing, said cover device being fixed to said exterior housing, and said exterior housing having an open side through which said housing can be removed and inserted;
and
lift means mounted to a bottom end of said housing for supporting said housing, for raising said housing to raise said first open end thereof into contact with said cover device and for lowering said housing away from said cover device.

5 more elements

Dependencies are inferred from the claim text.