Description
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.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Official Data Source | HTML | Access the complete Patent AT-E399705-T1: [Translated] COLLAPSIBLE FLOTATION DEVICE on the official website. | Open resource |