US 5,143,389 AGranted

Wheeled support frame for a removable plastic container having closure and actuating device

AssigneeWiva Verpakkingen B.V.

InventorGodefridus H. J. Jonkers

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Abstract

A plastic container with a bottom and, connecting continuously onto the edge thereof a standing wall of random shape defining an upper circular edge portion on which can be placed a cover provided with a peripheral groove for receiving the edge portion, the cover and the edge portion being provided with co-acting locking elements. The locking elements include on the one hand by a number of L-shaped locking members distributed uniformly over the periphery, one leg being fixed to the cover or to the edge portion of the container such that it is oriented perpendicularly to the bottom, and on the other hand by an outward pointing lip on the edge portion or the cover and against which the other leg of the locking member can be placed. The cover can be lifted relative to the container during filling of the container, while for its permanent closure the cover is positioned on the upper circular edge of the container and turned through a determined distance relative to the container in order to place all the locking members simultaneously in contact with the co-acting lip, whereby the cover is locked onto the container.

Claims16

Dependent claims

The combination of a plastic container, a cooperable cover and an actuating device for connecting or disconnecting the cover with respect to the container, said plastic container comprising a bottom having a peripheral edge and a wall which is connected continuously to the peripheral edge of said bottom and, with the bottom placed on a horizontal surface, extends upwardly therefrom, said wall defining a circular upper edge having an outwardly-extending lip;

said cover defining a circular outer edge and including first engagement means and L-shaped locking means having first and second legs attached to said outer edge, said first leg extending downwardly when said cover is positioned on the upper edge of said container and said second leg being lockable against said outwardly-extending lip of said container when said cover is positioned on said container and rotated relative to said container;
and said actuating device comprising a supporting plate on which the bottom of said container is adapted to be positioned, a frame member which extends away from said supporting plate, an arm which extends away from said frame member, and a pressure member which is movably attached to said arm so as to be capable of pressing said cover against said container when said container is positioned on said support plate, said pressure member including second engagement means for cooperation with said first engagement means of said cover when said pressure member is pressed against said cover, and handgrip means connected to said pressure member to facilitate manual rotation of said pressure member and consequently rotation of said cover relative to said container when said pressure member is pressed against said cover.

The combination of a plastic container, a cooperable cover and an actuating device for connecting or disconnecting the cover with respect to the container, said plastic container comprising a bottom having a peripheral edge and a wall which is connected continuously to the peripheral edge of said bottom and, with the bottom placed on a horizontal surface, to extend upwardly therefrom, said wall defining a circular upper edge and including an L-shaped locking means having first and second legs attached to said upper edge, said first leg extending upwardly from said upper edge;

said cover defining a circular outer edge and including first engagement means and an outwardly-extending lip against which said second leg of said container can be locked when said cover is positioned on said container and rotated relative to said container;
and said actuating device comprising a supporting plate on which the bottom of said container is adapted to be positioned, a frame member which extends away from said supporting plate, an arm which extends away from said frame member, and a pressure member which is movably attached to said arm so as to be capable of pressing said cover against said container when said container is positioned on said support plate, said pressure member including second engagement means for cooperation with said first engagement means of said cover when said pressure member is pressed against said cover, and handgrip means connected to said pressure member to facilitate manual rotation of said pressure member and consequently rotation of said cover relative to said container when said pressure member is pressed against said cover.

Dependencies are inferred from the claim text.