|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||005/417; 005/419; 005/420|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 11 인용 특허 : 120|
A collapsible apparatus includes a frame member being formed from a flexible twistable material, a first membrane and a second membrane, and an inflatable bladder. The second membrane is removably attachable to the first membrane.
What is claimed is: 1. An apparatus, comprising: a first membrane having a first portion and a second portion opposite the first portion, the first portion and the second portion collectively defining a sleeve and defining an outermost perimeter of the first membrane; a frame member formed from a flexible twistable material, the frame member being disposed between the first portion and the second portion within the sleeve; an inflatable bladder coupled to the first membrane, the inflatable bladder having a perimeter portion at least a portion of which i...