| 摘要 |
Devices for maintaining the mouth of a bag in an open condition. The device may comprise a housing with a cavity and at least one opening, and at least one support band which is at least partially positioned in the cavity, wherein a first end of the at least one support band is located in the cavity and at least a portion of the at least one support band extends exterior of the housing, and the at least one support band has at least two positions relative to the housing, a retracted condition in which a majority of the at least one support band is positioned in the cavity and an extended condition in which less than a majority of the at least one support band is located exterior to the cavity.
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