초록 ▼

A blow molded, bi-axially oriented plastic canister or container has a generally cylindrical body, a bottom, and a tapering upper portion, which terminates at a wide mouth or opening surrounded by a radially outwardly directed annular flange having an inwardly facing corner. A generally disc-shaped

A blow molded, bi-axially oriented plastic canister or container has a generally cylindrical body, a bottom, and a tapering upper portion, which terminates at a wide mouth or opening surrounded by a radially outwardly directed annular flange having an inwardly facing corner. A generally disc-shaped closure insert having a circumferential rim and a dispensing outlet is placed across the opening such that the closure rim is generally fitted into the corner of the annular flange. Heat or some other form of energy is applied to the entirety of the annular flange, which in response shrinks to tightly conform to and engage the closure rim, forming a circumferential seal. The dispensing outlet may be provided with an outlet closure, such as a screw cap or the like. Also, a sealant may be disposed between the annular flange and the closure rim before the heat is applied in order to form an enhanced seal. Furthermore, mechanical devices may be used to shape the flange during or after heating to further enhance the rim-flange seal or to provide additional sealing configurations.

대표청구항 ▼

A blow molded, bi-axially oriented plastic canister or container has a generally cylindrical body, a bottom, and a tapering upper portion, which terminates at a wide mouth or opening surrounded by a radially outwardly directed annular flange having an inwardly facing corner. A generally disc-shaped

A blow molded, bi-axially oriented plastic canister or container has a generally cylindrical body, a bottom, and a tapering upper portion, which terminates at a wide mouth or opening surrounded by a radially outwardly directed annular flange having an inwardly facing corner. A generally disc-shaped closure insert having a circumferential rim and a dispensing outlet is placed across the opening such that the closure rim is generally fitted into the corner of the annular flange. Heat or some other form of energy is applied to the entirety of the annular flange, which in response shrinks to tightly conform to and engage the closure rim, forming a circumferential seal. The dispensing outlet may be provided with an outlet closure, such as a screw cap or the like. Also, a sealant may be disposed between the annular flange and the closure rim before the heat is applied in order to form an enhanced seal. Furthermore, mechanical devices may be used to shape the flange during or after heating to further enhance the rim-flange seal or to provide additional sealing configurations. 1. A method for manufacturing a carrier for carrying a plurality of containers, the method comprising: attaching a retainer sheet material to a film sleeve material between a length of the retainer sheet material and a length of the film sleeve material to form a carrier blank; forming a plurality of container receiving openings in the retainer sheet material; creating an opening in the film sleeve material sufficiently large to allow the film sleeve to be slid over the plurality of containers so that the plurality of containers are wrapped in the film sleeve material; and inserting a container of the at least a pair of containers into the opening of the film sleeve and into a corresponding container receiving opening of the plurality of container receiving openings. 2. The method of claim 1 further comprising symmetrically forming the carrier about at least one fold line. 3. The method of claim 1 wherein the retainer sheet material has a first thickness and the film sleeve material has a second thickness thinner than the first thickness. 4. A method for manufacturing a single-piece carrier for carrying a plurality of containers, the method comprising: forming a retainer sheet portion of the carrier having a first thickness; forming a film sleeve portion of the carrier having a second thickness, the second thickness thinner than the first thickness; sealing the film sleeve portion to the retainer sheet portion longitudinally between the film sleeve portion and the retainer sheet portion; forming a plurality of container receiving openings in the retainer sheet portion; wrapping the plurality of containers within the film sleeve portion; and inserting a container of the plurality of containers into each opening of the plurality of container receiving openings. 5. The method of claim 4 further comprising: forming the film sleeve portion in two discrete sections; sealing the two discrete sections with respect to two sides of the retainer sheet portion. 6. The method of claim 4 further comprising forming a handle in the retainer sheet portion. 7. The method of claim 4 further comprising symmetrically forming the carrier about a fold line. 8. A method for manufacturing a single-piece carrier for carrying a plurality of containers, the method comprising: forming a retainer sheet portion of the carrier having a first thickness; forming a film sleeve portion of the carrier having a second thickness, the second thickness different than the first thickness; sealing the film sleeve portion to the retained sheet portion near a periphery of two opposed edges of the retainer sheet along a seal extending longitudinally between the film sleeve portion and the retained sheet portion; forming a plurality of container receiving openings in the retainer sheet portion and an opening in the film sleeve portion; and inserting the plurality of containers into the opening in the film sleeve portion and the retainer sheet portion of the single-piece carrier so that the film sleeve portion substantially covers the plurality of containers and so that the plurality of container receiving openings are each stretched over a container of the plurality of containers. 9. The method of claim 8 further comprising: folding the film sleeve portion to form an open end; folding the retainer sheet portion to form an open end; attaching the film sleeve portion with respect to the retainer sheet portion along each respective open end. 10. The method of claim 8 further comprising: forming the film sleeve portion in two discrete sections; sealing the two discrete sections with respect to two sides of the retainer sheet portion.