|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||B63C-009/08 B63B-007/08 B63B-035/607 B63B-035/76 B63C-009/04 B63C-009/105 B63B-035/73|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 0 인용 특허 : 157|
A device comprises a spring and a sleeve. The spring is configured to form a closed loop. The spring is moveable between a coiled configuration when the spring is collapsed and an uncoiled configuration when the spring is expanded. The spring defines a circumference while in the uncoiled configuration. The spring is disposed within the sleeve.
1. An apparatus, comprising: a panel having an interior region and an outer region disposed about the interior region, the interior region including a mesh material having an outer perimeter portion, the mesh material having a maximum length greater than a maximum width of the mesh material;the outer region including a first layer of material and a second layer of material, an inner perimeter portion of each of the first layer of material and the second layer of material being fixedly coupled to the outer perimeter portion of the mesh material of the int...