摘要:
A thermoplastic bag for storing food items may include a first sidewall and an opposing second sidewall joined to the first sidewall to define an interior volume. The first and second sidewalls may be made from pliable, sheet-like thermoplastic web material. The sidewalls may be formed with a pattern of ribs. When a tensioning force is applied to the sidewall, the ribs may open so that the sidewall may become generally more planar. Opening the ribs may cause the sidewalls to stretch or expand thereby adding to the overall area of the bag. The thermoplastic material may have a shape memory characteristic that may cause the ribs to reform after the tensioning force is alleviated.
摘要:
A spin lock container comprising a container member having a bottom, an upper annular rim and a substantially continuous side wall extending from the bottom and terminating at the rim, the bottom and side wall defining a first member cavity, the rim including a first member skirt having a plurality of first threads, the plurality of first threads having substantially equidistant engagement points; and a closure member having a peripheral sealing portion and an inner sealing portion, the peripheral sealing portion including a sealing liner and a skirt having a plurality of second threads adapted and positioned to cooperate with the first threads, wherein sealable engagement of the container member and closure member is effectuated when the first and second threads are fully aligned and the inner sealing member is adapted to sealingly engage an inner container member, the inner container member fitting inside the outer container member when the peripheral sealing member is engaged with the outer container member.
摘要:
A spin lock container comprising a container member having a bottom, an upper annular rim and a substantially continuous side wall extending from the bottom and terminating at the rim, the bottom and side wall defining a first member cavity, the rim including a first member skirt having a plurality of first threads, the plurality of first threads having substantially equidistant engagement points; and a closure member having a peripheral sealing portion and an inner sealing portion, the peripheral sealing portion including a sealing liner and a skirt having a plurality of second threads adapted and positioned to cooperate with the first threads, wherein sealable engagement of the container member and closure member is effectuated when the first and second threads are fully aligned and the inner sealing member is adapted to sealingly engage an inner container member, the inner container member fitting inside the outer container member when the peripheral sealing member is engaged with the outer container member.
摘要:
A food storage container has a cover and a base that provide a sealed storage area. The cover has a central engagement portion containing venting holes. The venting holes can be covered or exposed by an adjustable venting cover.
摘要:
A container system includes an inner container adapted to nest inside of an outer container. A single cover sealingly engages both the inner and outer containers. The cover includes a first closure portion, a third closure portion, and an engagement portion. The third closure portion may be formed from an inside surface of at least a portion of the engagement portion. The outer container includes a second closure portion. The first closure portion of the cover is sealingly engageable with the second closure portion of the outer container to define a sealed storage area. The inner container includes a forth closure portion. The third closure portion of the cover is sealingly engageable with the forth closure portion of the inner container. The engagement portion of the cover is engageable with the engagement portion of a second cover to form a locked cover stack.
摘要:
A plastic draw tape bag includes a non-destructive hem seal which runs along the width of the bag to secure the draw tape. The seal is created by bonding two layers of film by using an adhesive, a hot seal, or a coextruded film. When stressed by adequate forces, the seal will partially open without tearing the film. However, it will open only to the extent that the load exceeds the seal strength. Once the film absorbs the load and the stress is relieved, the seal will stop opening and the remaining portion of the seal will remain intact. Thus, the stress concentration is dissipated without tearing the film at or near the seal. As a result, the bag will fail only when the forces on the bag exceed the load bearing limit of the film.