|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||156/217 ; 493/189 ; 493/254 ; 493/264|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 37 인용 특허 : 25|
A semi rigid container comprising a plurality of generally rectangular side walls and a bottom wall attached to the bottom of each side wall. A plurality of flexible supporting frames are attached to each side wall to expand the container's open top and to brace the side walls into a free standing container for handy storage, transportation or disposal of refuse or other articles. A drawstring is provided along the top of the container for easy closure. The semi rigid container is made by attaching the flexible supporting frames to one or more sheets of ...
[ What is claimed is:] [1.] A method of making a semi rigid container having an open top, said method comprising the steps of:providing a sheet of flexible material having at least one layer;positioning a plurality of supporting frames upon said sheet;securing said supporting frames to said sheet;folding said sheet intermediately so that each said supporting frame approximately overlays another said supporting frame;sealing all open margins of said layered sheet except those open margins corresponding to said container's open top.