초록 ▼

An apparatus (10) for holding open a mouth (40) of a bag (20) defined by side walls (22, 26) of the bag for facilitating placing material into the bag comprises a one-piece rectangular frame member (50) made of a resilient material. The frame member (50) has four side portions (52, 56) which lie sub

An apparatus (10) for holding open a mouth (40) of a bag (20) defined by side walls (22, 26) of the bag for facilitating placing material into the bag comprises a one-piece rectangular frame member (50) made of a resilient material. The frame member (50) has four side portions (52, 56) which lie substantially in a common plane constituting a first condition of the frame member. The four side portions (52, 56) are for engaging interior side walls (22, 26) of the bag. The side portions (52, 56) of the frame member (50) define a rectangular outer perimeter (62) of the frame member and a window (64) in the frame member through which material is placed into the bag (20). The outer perimeter (64) is slightly larger than the mouth (40) of the bag (20) measured in a plane perpendicular to the side walls (22, 26) of the bag.

대표청구항 ▼

[ Having described the invention, I claim:] [1.] An apparatus comprising a bag having a flat bottom wall and four side walls which extend between said bottom wall and a mouth of said bag, said flat bottom wall of said bag having a bottom surface for engaging a support surface with said side walls of

[ Having described the invention, I claim:] [1.] An apparatus comprising a bag having a flat bottom wall and four side walls which extend between said bottom wall and a mouth of said bag, said flat bottom wall of said bag having a bottom surface for engaging a support surface with said side walls of said bag disposed in a rectangular array which extends upward from said bottom wall in a direction away from the support surface to said mouth of said bag, said side walls of said bag having inner side surfaces which extend between said mouth and said flat bottom wall of said bag, and frame means for holding said mouth of said bag in an open condition by applying force only against said inner side surfaces of said side walls of said bag at a location adjacent to said mouth of said bag while said side walls of said bag extend upward from said flat bottom wall in a rectangular array to said mouth of said bag, said frame means consisting of four sides which are interconnected to each other at four corners, said sides and corners of said frame means being made from a single resilient material and defining a rectangular opening, when in an unrestrained condition said frame means being disposed substantially in a single plane, when in a restrained condition said frame means not being disposed in a single plane, each of said sides of said frame means including side surface means for applying force against said inner side surface of one of said side walls of said bag at a location adjacent to said mouth of said bag, said frame being disposed entirely within said bag and located above and spaced from said flat bottom wall of said bag, said frame means being supported above said flat bottom wall of said bag by only the inner side surfaces of said side walls of said bag.