Abstract:
A retaining element for use with elastic sheet material is disclosed. In one form, the sheet material can be provided as a bag having first and second side walls. The retaining element can be in the form of an elastic strip attached to one of the side walls. The retaining strip can comprise a heat-unstable activatable material such that it can be applied to the bag in a deadened condition wherein the strip is set and subsequently heated to transition to an activated condition wherein the retaining element is elasticized to provide an elasticized article which can have a shirred appearance. The retaining element can have various configurations and can be activated by various methods.
Abstract:
A retaining element for use with elastic sheet material is disclosed. In one form, the sheet material can be provided as a bag (100) having first and second side walls (102, 104). The retaining element can be in the form of an elastic strip attached to one of the side walls. The retaining strip (120) can comprise a heat-unstable activatable material such that it can be applied to the bag in a deadened condition wherein the strip is set and subsequently heated to transition to an activated condition wherein the retaining element is elasticized to provide an elasticized article which can have a shirred appearance. The retaining element can have various configurations and can be activated by various methods.
Abstract:
A retaining element for use with elastic sheet material is disclosed. In one form, the sheet material can be provided as a bag (100) having first and second side walls (102,104). The retaining element can be in the form of an elastic strip attached to one of the side walls. The retaining strip (120) can comprise a heat-unstable activatable material such that it can be applied to the bag in a deadened condition wherein the strip is set and subsequently heated to transition to an activated condition wherein the retaining element is elasticized to provide an elasticized article which can have a shirred appearance. The retaining element can have various configurations and can be activated by various methods.
Abstract:
The present invention consists of an inexpensive tight sealing plastic container suited for microwave cooking, top-shelf dishwashing and freezer use. In accordance with a preferred embodiment, the container is provided with two compartments, one large and one small. The container utilizes a dual cut-back closure device of which the retaining bead of the container bottom maintains the container top in a secure position. The inside dimensions of the container top are slightly larger than the container bottom in both compartments. The difference in sizes provides an interference fit and forms a substantially leak proof seal along the inside perimeter of both compartments of the container. The container top provides at least one gripping tab, which facilitates the separation of the container top from the container bottom and permit container venting. In accordance with one embodiment of the invention, the container top is provided with two gripping tabs with one gripping tab allocated to each of the two compartments. In accordance with another embodiment, the closure devices on the container top and bottom are widened at the corner regions.
Abstract:
Provided is a plastic bag including a live elastic strip that, in the elastic strip's normal condition, contracts thereby constricting an opening of the bag to assist in retaining the bag to an object. The elastic strip includes a first region that is continuously attached to a sidewall of the bag between a first side edge and a second side edge of the bag and a second region that remains unattached to the sidewall. The attached region does not contract but instead forces the portion of the sidewall to which it is attached to pucker into a serpentine path. The unattached region does contract causing the portion of the sidewall to which it is adjacent to bunch together. Also provided is a method for manufacturing a plastic bag that involves stretching a live elastic tape and continuously attaching a region of the stretched tape to a web of plastic material.
Abstract:
The closure device (121) includes a first fastening strip (130) and a second fastening strip (131) arranged to be interlocked over a predetermined length. The first fastening strip (130) includes a first offset (169). A slider (132) slidably engages the first and second fastening strips (130 131). The slider (132) includes a first shoulder (240) and a second shoulder (242). The first shoulder (240) and the second shoulder (242) define a slot (270). The first offset (164) prevents removal of the slider (132) from the fastening strips (130, 131) through the slot (270) in a vertical Z axis (106).
Abstract:
Several embodiments of resilient slider members and methods of assembling such slider members onto interlocking fastening strips are disclosed herein. The slider member (200) comprises a pair of spaced-apart side walls (210, 230) and an intermediate body portion (250) therebetween. In addition, each side wall includes an interior surface (215) with an inwardly projecting shoulder (216) formed thereon, an exterior surface (217), and opposed end surfaces (218). The method of assembling a slider member (200) onto interlocking fastening strips (110) includes the acts of: engaging respective side walls (210, 230) of a slider member with first and second tools (260, 270); moving the first tool (260) away from the second tool (270) to resiliently spread apart the side walls (210, 230) of the slider member; inserting interlocking fastening strips (110) between the spread apart side walls (210, 230) of the slider member; and releasing the first and second tools (260, 270) from engagement with the side walls (210, 230) of the slider member to permit the side walls (210, 230) to resiliently return to a relaxed position wherein the shoulders (216, 236) formed on the interior surfaces of the side walls (210, 230) are positioned to obstruct removal of the slider member (200) from the interlocking fastening strips (110)
Abstract:
Provided is a plastic bag including a live elastic strip that, in the elastic strip's normal condition, contracts thereby constricting an opening of the bag to assist in retaining the bag to an object. The elastic strip includes a first region that is continuously attached to a sidewall of the bag between a first side edge and a second side edge of the bag and a second region that remains unattached to the sidewall. The attached region does not contract but instead forces the portion of the sidewall to which it is attached to pucker into a serpentine path. The unattached region does contract causing the portion of the sidewall to which it is adjacent to bunch together. Also provided is a method for manufacturing a plastic bag that involves stretching a live elastic tape and continuously attaching a region of the stretched tape to a web of plastic material.
Abstract:
Several embodiments of resilient slider members and methods of assembling such slider members onto interlocking fastening strips are disclosed herein. The slider member (200) comprises a pair of spaced-apart side walls (210, 230) and an intermediate body portion (250) therebetween. In addition, each side wall includes an interior surface (215) with an inwardly projecting shoulder (216) formed thereon, an exterior surface (217), and opposed end surfaces (218). The method of assembling a slider member (200) onto interlocking fastening strips (110) includes the acts of: engaging respective side walls (210, 230) of a slider member with first and second tools (260, 270); moving the first tool (260) away from the second tool (270) to resiliently spread apart the side walls (210, 230) of the slider member; inserting interlocking fastening strips (110) between the spread apart side walls (210, 230) of the slider member; and releasing the first and second tools (260, 270) from engagement with the side walls (210, 230) of the slider member to permit the side walls (210, 230) to resiliently return to a relaxed position wherein the shoulders (216, 236) formed on the interior surfaces of the side walls (210, 230) are positioned to obstruct removal of the slider member (200) from the interlocking fastening strips (110)
Abstract:
One or more implementations of a multi-film thermoplastic structure include a first film having a first appearance in contact with a second film having a second appearance at one or more visually distinct contact areas, including a continuous contact area spanning a width of the structure. In one or more implementations the multi-film thermoplastic structure comprises a thermoplastic bag and the continuous contact area forms a hem seal near a top opening of the thermoplastic bag.