US3694836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible inflatable boat
Assignee: Individual
•
Filing: 1970-12-01
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Granted: 1972-10-03
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Expires: 1990-12-01
Abstract
Abstract A collapsible inflatable boat has a substantially rigid buoyant bottom with inflatable float means fixedly attached thereto and can be collapsed to occupy substantially no more space than is occupied by the bottom alone while still retaining sufficient buoyancy to float in its collapsed condition. When inflated, the boat can be propelled by motor, sail or oars.
Inventors
- 👤 Juan Duarry Serra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:59
CPC Classifications
B; B63; B63B; B63B7/00; B63B7/06; B63B7/08; B63B7/082
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
166 words
In a collapsible inflatable boat comprising a single substantially rigid buoyant bottom having two side margins, a bow portion and a stern portion, and including a longitudinally extending integrally formed keel, said bottom defining a substantially flat floor of the boat, inflatable float means extending continuously along said side margins and said bow portion of said bottom and being fixedly and permanently attached thereto along a surface extending upwardly to less than half the height of the float means, and a substantially rigid support means secured at said stern portion for supporting an outboard motor means, said boat having an inflated condition in which said float means is inflated and in essentially invariable position with respect to the bottom, and a deflated condition in which said float means is deflated and positioned on top of said bottom, folded around the margins and the bow portion thereof, the collapsed dimensions of the boat in said deflated condition being essentially reduced to the dimensions of the bottom alone.
Claim 2
Dependent Claim
166 words
In a collapsible inflatable boat comprising a single substantially rigid buoyant bottom having two side margins, a bow portion and a stern portion, and including a longitudinally extending integrally formed keel, said bottom defining a substantially flat floor of the boat, inflatable float means extending continuously along said side margins and said bow portion of said bottom and being fixedly and permanently attached thereto along a surface extending upwardly to less than half the height of the float means, and a substantially rigid support means secured at said stern portion for supporting an outboard motor means, said boat having an inflated condition in which said float means is inflated and in essentially invariable position with respect to the bottom, and a deflated condition in which said float means is deflated and positioned on top of said bottom, folded around the margins and the bow portion thereof, the collapsed dimensions of the boat in said deflated condition being essentially reduced to the dimensions of the bottom alone.
Claim 3
Dependent Claim
32 words
A collapsible inflatable boat as defined in claim 1, wherein the buoyancy of said bottom alone is sufficient to enable the boat carrying passengers to float when the float means is deflated.
Claim 4
Dependent Claim
40 words
A collapsible inflatable boat as defined in claim 2, wherein said substantially rigid bottom of the boat comprises two external layers of a water-proof, rigid and light weight material and an internal core of an insulating material of great buoyancy.
Claim 5
Dependent Claim
18 words
A collapsible inflatable boat as defined in claim 3, wherein said external layers comprise glass fiber reinforced polyester.
Claim 6
Dependent Claim
17 words
A collapsible inflatable boat as defined in claim 3, wherein said internal core comprises foamed closed-cell polyurethane.
Claim 7
Dependent Claim
32 words
A collapsible inflatable boat as defined in claim 1, wherein said inflatable float means comprises two longitudinally extending inflatable floats which converge at their Front ends towards the bow of the boat.
Claim 8
Dependent Claim
42 words
A collapsible inflatable boat as defined in claim 1, wherein said inflatable float means comprises two parallel inflatable floats extending along said side margins of said bottom and a third generally U-shaped inflatable float extending along said bow portion of said bottom.
Claim 9
Dependent Claim
18 words
A collapsible inflatable boat as defined in claim 1, wherein said float means is provided with oarlock means.
Claim 10
Dependent Claim
54 words
A collapsible inflatable boat as defined in claim 1, wherein said float means is generally cylindrical in cross-section and the marginal portions of said bottom are provided with longitudinally extending arcuate edge surfaces for abutting engagement with the surface of said float means to increase the lateral rigidity of the float means when inflated.
Claim 11
Dependent Claim
38 words
A collapsible inflatable boat as defined in claim 1, wherein said support means is transversely disposed between said float means at the stern portion of said bottom and defines with said bottom and said float means a cockpit.
Claim 12
Dependent Claim
37 words
A collapsible inflatable boat as defined in claim 10, wherein said transversely disposed support means comprises a transom tiltably mounted on said bottom of the boat and being secured in its upstanding position by means of cables.
Claim 13
Dependent Claim
39 words
A collapsible inflatable boat as defined in claim 10, wherein said transversely disposed support means comprises a transom tiltably mounted on said bottom of the boat and being secured in its upstanding position by means of rigid bracing members.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |