The Continental Group, Inc.

Continental Can Company, Inc.

Donald F Kulikowski

Obert M Ostrem

Sam C Pulciani

Peter N Pan

Kenneth E Richie

A propellantless aerosol container wherein an elastic expelling member is sleeved over a flexible product containing member and carried within a rigid container body. Retainers, releasable from without the container, are provided whereby the expelling member may be extended and retained in the extended condition during filling of the container, and later released to provide an expelling force.

Propellantless aerosol container

An easy opening end closure is formed with annular, double folded band adjacent the chuck wall. A weakening line defining a removable panel portion is formed in the center segment of the fold so that the folded edges of the single band provide smooth protective surfaces on both the ledge and the removable panel portion. This disclosure also relates to a method for forming the above described easy-opening end closure wherein the weakening line is formed in the end panel prior to complete formation of the folded band.

Edge protection for easy opening end closure

An easy-opening end closure of the full opening type is formed with the flap-defining score-line located in the vertical chuck wall whereat the cutedge, of that portion of the closure remaining attached to the container after opening, is shielded by the container sidewall. The disclosure also relates to a method for forming the above described easy-opening end closure wherein the scoreline is formed in a horizontal portion of the end panel, said portion thereafter being upset to a substantially vertical position whereat it comprises a part of the chuck wall.

End closure for container

This disclosure relates to the forming of folds in a container panel for the purpose of providing a protective fold both about the periphery of a removable panel segment and about the portion of the container panel from which the removable segment has been removed. The two folds are formed in a continuous operation with first one fold being formed and then the other fold being formed without effecting the rupture of the container panel intermediate the folds along a previously formed line of weakening. A die set is provided for properly supporting the various portions of the container member and for applying pressures on the various panels so as to effect a first folding and then a second folding while supporting that panel of the container member containing the line of weakening so as to prevent rupture thereof along the line of weakening.

Growing community of inventors

Oak Forest, IL, United States of America

Donald F Kulikowski