US 5,167,341 AGranted

Lid assembly for roll-off sludge containers

AssigneeMcClain Industries of Oklahoma, a division of McClain Industries, Inc.

InventorsJamie S. Morton, Corwin H. Hanks, Roger R. Lindley, Neal B. Flowers

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Abstract

An immproved lid assembly for roll-off sludge containers is provided wher the lid assembly is supported by oppositely disposed lip portions which extend longitudinally along each side of an opening formed in an upper side of the sludge container. The lid assembly comprises a plurality of lid members and a roller assembly connected to each of the lid members so that the lid members can be selectively moved between a first position and a second position relative to the opening of the sludge container. In the first position the lid members are telescopically disposed in adjacent lid members, thus providing access to selected portions of the opening in the sludge container. In the second position, the lid members are extended and close off the opening in the sludge container.

Claims14

Dependent claims

a plurality of lid members supported on the lip portion of the sludge container so as to be selectively movable between a first position and a second position, in the first position one of the lid members being adapted to telescopingly receive the other lid members so as to provide access to the sludge chamber, in the second position the lid members cooperating to close off the opening in the sludge container;
roller means connected to each of the lid members for movement of the lid members between the first and second positions, the roller means of each lid member being laterally displaced relative to the roller means of the other lid members and selectively movable between an extended travel position and a retracted position, in the extended travel position the roller means biased so as to extend from the supporting lid members for travel along a travel path on the lip portion of the container as the lid member is selectively moved between the first and second positions, in the retracted position the roller means extending upwardly into the supporting lid members;
connector means for securing the lid members to the sludge container when the roller means are in the retracted position and the lid members are disposed in the second position;
and
gasket means supported by the lid members for forming a fluid-tight seal between the lid members and the sludge container when the lid members are secured in the second position.

2 more elements

An improved lid assembly for roll-off sludge containers having oppositely disposed lip portions extending longitudinally along each side of an opening formed in an upper side of the sludge container and communicating with a sludge chamber, each of the lip portions having a recessed ledge extending longitudinally along the opening so as to be adjacently disposed thereto, the improved lid assembly comprising:

a plurality of lid members, one of the lid members supported on the recessed ledges and the other lid member supported on the lip portions of the sludge container so as to be selectively movable between a first position and a second position, in the first position the lid members telescopingly disposed in one another so as to provide access to the sludge chamber, in the second position the lid members cooperating to close off the opening in the sludge container;
roller means connected to each of the lid members for movement of the lid members between the first and second positions, the roller means biased so as to be selectively movable between an extended travel position and a retracted position, in the extended travel position the roller means of one of the lid members adapted to travel along a travel path on the recessed ledges and the roller means of the other lid members adapted to travel along a travel path on the lip portions of the container as the lid members are selectively moved between the first and second positions, in the retracted position the roller means of each of the lid members being displaced upwardly into the supporting lid member, the roller means of each lid member being laterally displaced relative to the roller means of the other lid members;
connector means for securing the lid members to the sludge container when the roller means are in the retracted position and the lid members are disposed in the second position;
and
gasket means supported by the lid members for forming a fluid-tight seal between the lid members and the sludge container when the lid members are secured in the second position.

2 more elements

Dependencies are inferred from the claim text.