Material or article handling – Device for emptying portable receptacle – Rotary cradle
Reexamination Certificate
1999-03-04
2001-03-06
Bratlie, Steven A. (Department: 3652)
Material or article handling
Device for emptying portable receptacle
Rotary cradle
Reexamination Certificate
active
06196784
ABSTRACT:
FIELD OF THE INVENTION
This invention is concerned generally with emptying containers and particularly with placing containers in a state of readiness for emptying.
This invention has been devised with containers in mind which include a pallet or base with four upstanding interlocked sides. While the invention has been devised with the above form of container particularly in mind it is not limited to such containers.
BACKGROUND TO THE INVENTION
When containers have to be emptied the methods adopted depend to a large extent on the contents of the container. In the case of flowable material, such as granules, gravitational discharge it the preferred option. To facilitate this form of emptying a container attempts have been made to develop containers which have a bottom discharge means. For a number of reasons containers with a bottom discharge incorporated in a base or pallet forming part of the container have not found favor with users.
An alternative is to tilt the container, usually in a tilting device on which the container is mounted, to the extent required to cause the contents to flow from the container over a top edge of one of the container sides. To provide a generally uniform rate of discharge, which is the normal requirement, the tilt of the container has to be continually adjusted. This discharge method is labor and/or time intensive and is therefore not favor.
Another discharge method is to mount a hood with a discharge opening fitted with a flow controlling device to the open top of the container and then support the container in an inverted condition to allow material in the container to gravity discharge through the discharge opening of the hood. The challenge with this method is how to invert the container and support it in the inverted manner in the most efficient and economical manner. The present invention addresses this challenge.
GENERAL DESCRIPTION OF THE INVENTION
Generally, the invention can be said to provide an inverting apparatus for a container means, said inverter includes a cradle pivotally mounted on a frame and pivotally movable by cradle moving means, said cradle has an open side to allow a container means to be entered into a receiving zone of said cradle, said receiving zone is defined by two spaced apart oppositely disposed cradle sides, a cradle back opposite said open side and two cradle ends at least one of which is linearly movable towards and away from the other cradle end to adopt retracted and extended conditions respectively.
REFERENCES:
patent: 3137327 (1964-06-01), Muench
patent: 3777920 (1973-12-01), Wiese
patent: 4744701 (1988-05-01), Chasteen
Bratlie Steven A.
Schindler Edwin D.
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