초록 ▼

A collapsible thin film plastic container assembly is provided which includes a unitary extrusion blow molded container body having a main peripheral side wall portion, a closed lower end and an open upper end. The side wall has thickened upper and lower minor portions, the upper minor portion provi

A collapsible thin film plastic container assembly is provided which includes a unitary extrusion blow molded container body having a main peripheral side wall portion, a closed lower end and an open upper end. The side wall has thickened upper and lower minor portions, the upper minor portion provided with means for receiving a removable lid. The thickened upper and lower portions permit the container to remain in a substantially upright, self-supporting position, but permit the main peripheral side wall portion to collapse upon exertion of an axially directed compressive force. The process includes extruding a parison and blow molding the parison within a mold to form the container.

대표청구항 ▼

A reuseable and collapsible, one-piece blow-molded, stand-alone container having an upper open end provided with closure receiving means, a lower end, and a peripheral sidewall of predetermined axial length, the lower end being closed by an integral bottom wall, and wherein said peripheral sidewall

A reuseable and collapsible, one-piece blow-molded, stand-alone container having an upper open end provided with closure receiving means, a lower end, and a peripheral sidewall of predetermined axial length, the lower end being closed by an integral bottom wall, and wherein said peripheral sidewall has a substantially uniform cross-sectional area from said upper open end to said lower end and has a thickness in an upper, minor portion thereof of from about 0.020 to 0.030 inch, and a thickness in an intermediate, major portion of from about 0.002 to 0.003 inch, wherein said peripheral sidewall is self-supporting, but the major portion of which is collapsible to a relatively stable collapsed position upon exertion of an axial force applied at the upper or lower end thereof, such that, in said stable collapsed position, the major collapsed portion lies radially within the periphery of at least the lower end of the container.