Receptacles – Receptacle having flexible – removable inner liner – Means for venting air trapped between the liner and its...
Patent
1995-06-07
1997-05-06
Shoap, Allan N.
Receptacles
Receptacle having flexible, removable inner liner
Means for venting air trapped between the liner and its...
220402, 220408, 220653, 222509, 222559, B65D 9004, B65D 634
Patent
active
056262531
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a device for containing bulk material which has a base emptying arrangement and, more particularly, to a device for storing and dispensing bulk materials such as sand, gravel, coke, and other materials of that type.
2. History of the Related Art
Basically two types of containers relating to storing and dispensing bulk material are known from the patent literature and from technical applications. Those which are known primarily for the management of waste glass (for example those according to patent application PCT/NL92/00228) and those which are, most of the time, designed as hoppers for railway wagons or cars, and which have an emptying aperture, operated by a lid.
Waste glass containers generally have individual apertures, through which the glass, primarily bottles, can be inserted. The waste glass containers remain for a certain time period at a waste-product collection site, and they are then removed by special trucks and replaced by empty containers. The emptying takes place either in the glass plant or at a railroad station by lifting of the container shell or by lowering the base, which is pyramid or cone-shaped. Such containers are designed in accordance with the loading and unloading speed, and with the amount of collected material.
In the case of the second type of container, loading as well as unloading is characterized by a high-speed mass flow. Special devices (called train hoppers) are also necessary for unloading. The storage, preceding loading and following unloading, requires special storage devices, called silos. The use of such bulk material containers designed as tops of railroad wagons or cars require a large amount of capital, for the container itself, for the silos, and for the train hoppers. In addition to that, the unit to be used is always at least one entire wagon or car, even if it is only to be partially filled. Reloading onto trucks requires further devices and either a special truck or special tops for miscellaneous distribution.
The present invention provides an improvement over the prior art by providing a bulk material container, which can be emptied through the bottom without a lid-device, which can be built in different sizes (also as an ISO standard container), which makes silos superfluous, or at least limits the need for them, which is simple, robust, and maintenance-friendly, and which has no attached electrical, pneumatic, and/or hydraulic ancillary devices for emptying.
SUMMARY OF THE INVENTION
The present invention relates to apparatus for storing and dispensing bulk materials such as sand, gravel and coke and which has at least one base emptying aperture. More particularly, one aspect of the present invention comprises a frame formed in the general shape of a box and a container formed in the general shape of a box for vertical movement within the frame. The upward vertical movement of the box relative to the frame opens apertures in the frame and the box to allow the bulk material to empty from the container.
Another aspect of the present invention relates to the apparatus described above wherein the frame includes vertical struts formed of square tubes; horizontal struts which are connected to the upper end portion of the vertical struts; metal side plates which are connected to the lower end portion of the vertical struts and a plurality of roof-shaped webs extending between the metal side plates extending along the length of the frame. The plurality of roof-shaped webs are positioned along the length of the frame to provide an aperture between adjacent roof-shaped webs.
Another aspect of the present invention relates to the apparatus described above wherein the container includes a guide attached to each corner of the container for sliding contact with the adjacent vertical strut of the frame during vertical movement of the container relative to the frame. The lower portion of the container is retracted in the shape of a truncated pyramid and includes a plurality of roo
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Kopsidas Niki M.
Shoap Allan N.
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