Material or article handling – Device for emptying portable receptacle
Patent
1991-01-17
1993-08-24
Werner, Frank E.
Material or article handling
Device for emptying portable receptacle
220484, 220908, 220408, 220DIG9, 220415, 2221795, B65F 106
Patent
active
052383563
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a method for the storage and collection of waste employing periodically emptied waste containers. The invention relates also to a waste container and a waste sack or a like for carrying out the method.
The current garbage collection systems in Finland and also in other countires are primarily based on the interchangeable platform type of collection or on smaller garbage containers which are either unloaded e.g. into a hydraulic garbage truck or carried to a dump for unloading. In Finland, for example, the interchangeable platform based garbage or waste collection is quite general. In the interchangeable platform system, the investments on a platform are substantial, at present circa FIM 20.000 in Finland. In addition, the system takes a lot of space since the working area required in the yard is approximately 100 m.sup.2. The garbage container has a volume of circa 10 m.sup.3 and is only filled by about 60% due to its low design. In addition, the container is non-hygienic since some of the waste sacks are always broken or become damaged in handling. The waste collection unit is an interchangeable platform truck, whereby the unloading of an interchangeable platform along with driving and handling to a dump e.g. 15 km away takes about an hour, i.e. the handling efficiency will be 6 m.sup.3 waste/h Thus, the calculated waste handing cost will be FIM 45/m.sup.3 waste.
An object of the invention is to eliminate the above drawbacks and to provide a method that is more practical and economic than the above-described system in the storage and collection of waste as well as a novel type of waste container for carrying out the method. In order to achieve the above objects, a method of the invention is principally characterized in that waste or garbage is stored in the storage space of a waste container in a reusable subcontainer, such as a sack, placed in the storage space and picked up from the storage space for collection and dumping. A subcontainer, such as a sack, facilitates considerably the collection work and during collection it is removed from the storage space and unloaded either at the same instance into a waste collection unit or subsequently on the dumping ground. In the former case, the subcontainer can be replaced at the same time in the storage space after being unloaded into a waste collection unit, and in the latter case, the subcontainer is transferred along with its contents into a waste collection unit to be carried to a dump and a fresh subcontainer is at the same time substituted for the removed one in the storage space.
According to one preferred embodiment of the invention, the need for space is substantially reduced by burying the waste container underground. In addition, the waste storage space can be readily unloaded by several alternative methods. Furthermore, the waste will not be exposed to hot summertime weather with increased odour problems since, for the most part, the waste lies underground where temperature is lower.
A waste container for embodying the invention is principally characterized in that the storage space of a waste container is provided with a reusable subcontainer, such as a sack, for waste storage, said subcontainer being removable from the storage space for unloading. According to one preferred embodiment, the storage space is buried underground and may be provided with walls extending aboveground and having their upper rim support a cover or a lid for closing the storage space. By virtue of this arrangement, the waste containers are clearly visible in environment and, for example, children cannot work their way into the container. The storage and unloading of waste are considerably facilitated by a subcontainer, fitted inside the storage space and removable therefrom. In addition, there are structural options for performing the pick-up of a subcontainer and the dumping of its contents.
By means of a waste sack of the invention, the above subcontainer concept can be realized in a practical manner.
The invention will now be described
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patent: 3028895 (1959-11-01), Gooding
patent: 3675810 (1972-07-01), Ross, Jr. et al.
patent: 3837521 (1974-09-01), Huston et al.
patent: 4457456 (1984-07-01), Derby et al.
patent: 4479243 (1984-10-01), Derby et al.
patent: 4917263 (1990-04-01), Korb
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