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US 8,523,623 B2Granted
Collapsible flotation device
AssigneeKelsyus, LLC
InventorDavid A. Arias
Life of this patent
Estimating the term…
Abstract
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.
Claims20
An apparatus, comprising:
- a spring being moveable between a coiled configuration when the spring is collapsed and an uncoiled configuration when the spring is expanded, the spring defining a closed loop when in the uncoiled configuration;
- a first membrane disposed within at least a portion of the closed loop of the spring, the first membrane formed with a first material;
- a second membrane coupled to the first membrane and disposed at least partially within the closed loop of the spring, the second membrane being formed with a second material different than the first material;
- a third membrane coupled to the first membrane, at least a portion of an outer perimeter of the third membrane being non-concentric with the closed loop;
- and
- an inflatable bladder coupled to the first membrane and disposed within the closed loop of the spring.
3 more elements
An apparatus, comprising:
- a spring being moveable between a coiled configuration when the spring is collapsed and an uncoiled configuration when the spring is expanded, the spring defining a closed loop having an interior region when in the uncoiled configuration;
- a first membrane disposed within at least a portion of the closed loop of the spring when the spring is in the uncoiled configuration;
- a second membrane coupled to the first membrane and disposed at least partially within the closed loop of the spring when the spring is in the uncoiled configuration, at least a portion of a perimeter of the second membrane being non-concentric with the closed loop;
- a first inflatable bladder coupled to the first membrane, the first inflatable bladder extending linearly across at least a portion of the interior region of the closed loop;
- and
- a second inflatable bladder coupled to the second membrane.
3 more elements
An apparatus, comprising:
- a spring being moveable between a coiled configuration when the spring is collapsed and an uncoiled configuration when the spring is expanded, the spring defining a closed loop when in the uncoiled configuration;
- a first membrane disposed within at least a portion of the closed loop of the spring when the spring is in the uncoiled configuration, the first membrane at least in part defining a first interior region;
- a second membrane coupled to the first membrane and disposed at least partially within the closed loop of the spring when the spring is in the uncoiled configuration, the second membrane at least in part defining a second interior region;
- a first inflatable bladder disposed within the first interior region, at least a portion of the first inflatable bladder extending from an edge of the first membrane linearly across a portion of the first interior region;
- a second inflatable bladder disposed within the first interior region, at least a portion of the first inflatable bladder extending from the edge of the first membrane linearly across a portion of the first interior region;
- and
- a third inflatable bladder disposed within the second interior region.
4 more elements
Dependencies are inferred from the claim text.