American Can Company

William Herman Hartman

Raymond E Mietz

Joseph Lambert Godar

Donald Henry Ruge

John R Peschke

Frank Bruno Pas

An open-ended cylindrical container body whose body wall marginal open end portion includes an annular body curl, and comprises metal less than about 0.0057 inch thick for a drawn and ironed container body, and less than about 0.002 inch for the metal foil liner of a composite container body, a method of securing a metal end closure to the curled container bodies by mechanical engagement and compression of end portion of the end closure cover hook substantially axially against the body curl, and the hermetic pressure-resistant containers formed therby.

Curled container bodies, method of securing closures thereto and

A method of extruding bark and of forming a solid article, solid synthetic fuel or fireplace log comprising from about 60 to 95 percent by weight bark, which comprises physically blending pieces of combustible thermoplastic of an extrudable size with pieces of bark also of an extrudable size and having less than 7 percent preferably less than 2 percent moisture, to form a bark thermoplastic mixture of from about 60 to 95 percent by weight bark and about 2.5 to 40 percent by weight thermoplastic, feeding the mixture to an extruder, heating the bark thermoplastic mixture in the extruder, controlling the heat of the extruder so that its temperature is insufficient to char the bark pieces yet sufficient to melt the thermoplastic and disperse it between the bark pieces so that it acts as a binder therefor and adheres sufficiently to the interior barrel wall surface of the extruder to allow the mixture to be moved therethrough by the extruder screw, extruding the mixture in the form of a composite extrudate, and cooling the composite extrudate to solidify it into the solid synthetic fuel. Preferably, the extruder screw tip is cooled and the heat of the extruder is controlled to range from about 200.degree. to 400.degree. F. with certain temperatures maintained in the respective extruder barrel zones.

Growing community of inventors

Rolling Meadows, IL, United States of America

William Herman Hartman