Mobil Oil Corporation

Tenneco Plastics Company

Richard A Wenzel

Lewis E Sable

Gordon L Benoit

Charles M Krutchen

Phillip A Williams

Louis E Sable

An apparatus for thermally densifying thermoplastic articles, particularly those of the expendable type. The apparatus includes a thermally insulated cabinet having mounted within a two-section hopper and a convection heating system. The apparatus is adapted for heating the thermoplastic articles placed within the chamber to a temperature effective for the thermal densification of the thermoplastic articles. The convection heating system creates a circulating air flow between the hopper and the cabinet walls. The air flow insulates the hot hopper from the apparatus cabinet and densifies the thermoplastic articles. The apparatus also renders any food particles in or on the thermoplastic articles bacterially inert.

Apparatus for the thermal densification of thermoplastic articles

An apparatus for thermally densifying thermoplastic articles, particularly those of the expendable type. The apparatus includes a chamber for placing the thermoplastic articles within, a heater for heating the thermoplastic articles placed within the chamber to a temperature effective for the thermal densification of the thermoplastic articles, a temperature sensor located proximate to the heater, and a controller for controlling the heater responsive to the temperature sensor, which is capable of providing a temperature within a range from about the temperature effective for thermally densifying thermoplastic articles to a temperature below the point of significant thermal degradation of the thermoplastic articles. A process for the thermal densification of thermoplastic articles are also provided.

Method for the thermal densification of thermoplastic articles

Plastic bag support rack having a message board thereon

Plastic bag support rack

A rack for supporting flexible bags in an open condition. The rack includes first and second wire side members each having at least two upwardly standing spaced elongated wire members having an upper end and a lower end, a rim member integrally connected to the upper ends of the upwardly standing elongated wire members, and a side retaining member integrally connected to the lower ends of the upwardly standing elongated wire members; and a base having a first end and a second end, the base comprising at least two spaced longitudinally disposed wire members each having an upper tangential surface and a lower tangential surface, a plurality of upper base members each affixed at opposite ends thereof in a substantially perpendicular relationship to the upper tangential surfaces of the longitudinally disposed wire members and a plurality of lower base members each affixed at opposite ends thereof in a substantially perpendicular relationship to the lower tangential surfaces of the longitudinally disposed wire members, the first and second ends of the base each having an upper base member and a lower base member positioned so as to define an opening at each of the first and second ends effective to position the side retaining members of the first and second wire side members therethrough.

Rack for collecting recyclable materials

The present invention includes a new bag packaging system for open mouth bags made of flexible material, preferably a thermoplastic side gusseted bag with handles integrally formed therein, which provides a complete bag packing environment and includes a base member, a bag supply means secured to the base member, and bag-engaging elements supported vertically above the base member opposite the bag supply means at a distance and height for expanding the mouth of the bag and to secure the bag against collapse while loading. Furthermore, the present invention provides a means for continuously presenting a bag-detaching point to the packer which facilitates removal of the bags from the bag supply means and optimizes the loading area. A further feature of the present invention includes minimal structure which could hinder easy removal of the loaded bag from the system. The present invention also provides a total packaging environment wherein bags of several sizes can be simultaneously provided to the packer for selection.

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Pittsford, NY, United States of America

Richard A Wenzel