Patent FR408214A successfully refreshed from Google Patents.
US3806972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat and method of construction
Assignee: Individual
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Filing: 1973-08-08
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Granted: 1974-04-30
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Expires: 1993-08-08
Abstract
Abstract A novel boat and method of constructing same utilizing four substantially equally sized flat panels hinged together along the length to form an elongated tube which has its ends flattened and fastened together to form a bow and stern with two opposite hinges forming the gunnels, the bottom hinge forming the keel line and the top hinge extending along the deck line.
Inventors
- 👤 S Jackowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:48
CPC Classifications
B; B63; B63B; B63B5/00; B63B5/24; B63B1/00; B63B1/02; B63B1/10; B63B1/12; B63B1/125; B63B34/00; B63B34/20; B63B34/21
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
295 words
A method for constructing a boat and the like comprising the following steps: provide a flattened tube having a first and a second end made of first, second, third and fourth elongated flat panels of the same width and approximately the same length with said first panel being hingedly connected by first and fourth hinges along its two Elongated sides to the elongated sides of said second and said fourth panels, respectively, and said third elongated panel being hingedly connected by second and third hinges to the remaining elongated sides of said second and fourth panels, respectively, seal said first end of said tube so that a first end of said first panel is contiguous to a first end of said fourth panel and a first end of said second panel is contiguous to a first end of said third panel so as to provide a bow for said boat, seal said second end of said tube to provide a stern, select one of said four hinges to be located in the center of the deck of said boat, two hinges adjacent to said deck hinge to be hinges located at the gunnels of said boat and the remaining hinge to be located along the bottom of said boat, make a transverse cut intermediate said first end and said second end of said tube across the hinge to be located in the center of the deck of said boat and between 50 percent and 80 percent of the width across the two panels adjacent said deck hinge, spread the panels apart in the vicinity of said opening so that the deck is shortened and said gunnel hinges are spread to approximately their extreme width, and provide a spreader means to maintain said gunnels spread apart.
Claim 2
Independent Claim
295 words
A method for constructing a boat and the like comprising the following steps: provide a flattened tube having a first and a second end made of first, second, third and fourth elongated flat panels of the same width and approximately the same length with said first panel being hingedly connected by first and fourth hinges along its two Elongated sides to the elongated sides of said second and said fourth panels, respectively, and said third elongated panel being hingedly connected by second and third hinges to the remaining elongated sides of said second and fourth panels, respectively, seal said first end of said tube so that a first end of said first panel is contiguous to a first end of said fourth panel and a first end of said second panel is contiguous to a first end of said third panel so as to provide a bow for said boat, seal said second end of said tube to provide a stern, select one of said four hinges to be located in the center of the deck of said boat, two hinges adjacent to said deck hinge to be hinges located at the gunnels of said boat and the remaining hinge to be located along the bottom of said boat, make a transverse cut intermediate said first end and said second end of said tube across the hinge to be located in the center of the deck of said boat and between 50 percent and 80 percent of the width across the two panels adjacent said deck hinge, spread the panels apart in the vicinity of said opening so that the deck is shortened and said gunnel hinges are spread to approximately their extreme width, and provide a spreader means to maintain said gunnels spread apart.
Claim 3
Dependent Claim
57 words
The method of claim 1 wherein the second end is sealed so that a second end of said first panel is contiguous to a second end of said fourth panel and a second end of said second panel is contiguous to a second end of said third panel so as to provide said stern for said boat.
Claim 4
Dependent Claim
30 words
The method of claim 2 wherein said transverse cut defines a cockpit and the edge of said cut is finished to provide a smooth surface by inserting a cockpit coaming.
Claim 5
Dependent Claim
20 words
The method of claim 2 wherein said spread means is removed and the panels flattened for easy transport or storage.
Claim 6
Dependent Claim
23 words
The method of claim 4 wherein the flattened panels are folded bow to stern to shorten the structure for easy transport or storage.
Claim 7
Dependent Claim
18 words
The method of claim 2 wherein at least two of said panels are scored to provide integral hinges.
Claim 8
Dependent Claim
273 words
A marine vessel having first, second, third and fourth elongated panels of equal width and approximately the same length with each panel having a first and a second end and a first and a second elongated side; a first hinge forming a first gunnel connecting said second elongated side of said first panel to said first elongated side of said second panel, a second hinge forming a bottom line connecting said second elongated side of said second panel to said first elongated side of said third panel, a third hinge forming a second gunnel connecting said second elongated side of said third panel to said first elongated side of said fourth panel, a fourth hinge forming a deck line connecting said second elongated side of said fourth panel to said first elongated side of said first panel, a bow for said marine vessel having said first ends of said first and fourth panels attached to one another and said first ends of said second and third panels attached to one another, a stern for said marine vessel formed by sealing said second ends of said panels, a cut intermediate the ends of said marine vessel extending transversely across the deck and between 50 percent and 80 percent of the width across said first panel from its said first elongated side towards its said second elongated side and between 50 percent and 80 percent of the width across said fourth panel from its said second elongated side towards its said first elongated side, and a spreader means for transversely spreading said first gunnel from said second gunnel intermediate the ends of said marine vessel.
Claim 9
Dependent Claim
273 words
A marine vessel having first, second, third and fourth elongated panels of equal width and approximately the same length with each panel having a first and a second end and a first and a second elongated side; a first hinge forming a first gunnel connecting said second elongated side of said first panel to said first elongated side of said second panel, a second hinge forming a bottom line connecting said second elongated side of said second panel to said first elongated side of said third panel, a third hinge forming a second gunnel connecting said second elongated side of said third panel to said first elongated side of said fourth panel, a fourth hinge forming a deck line connecting said second elongated side of said fourth panel to said first elongated side of said first panel, a bow for said marine vessel having said first ends of said first and fourth panels attached to one another and said first ends of said second and third panels attached to one another, a stern for said marine vessel formed by sealing said second ends of said panels, a cut intermediate the ends of said marine vessel extending transversely across the deck and between 50 percent and 80 percent of the width across said first panel from its said first elongated side towards its said second elongated side and between 50 percent and 80 percent of the width across said fourth panel from its said second elongated side towards its said first elongated side, and a spreader means for transversely spreading said first gunnel from said second gunnel intermediate the ends of said marine vessel.
Claim 10
Dependent Claim
61 words
The marine vessel of claim 7 wherein said cut is in the form of a cockpit, coaming means surrounding said cockpit to provide a finished surface, and said stern for said marine vessel having said second ends of said first and fourth panels attached to One another and said second ends of said second and third panels attached to one another.
Claim 11
Dependent Claim
43 words
The marine vessel of claim 7 wherein said spreader means is removable so that said vessel may be flattened and said panels are sufficiently flexible so the ends of the flattened vessel can be folded to one another for easy transport and storage.
Claim 12
Dependent Claim
113 words
The marine vessel of claim 8 in the form of a main hull for a sailing trimaran, two outriggers similar to said main hull but smaller, each consisting of four elongated hinged together panels located on each side of said main hull, two outrigger struts fastened to said main hull at the middle of said struts and fastened at the ends to said outriggers, a spacer means for supporting the deck of said main hull spaced from the bottom of said main hull, a mast supported by the bottom and deck of said main hull, a rudder located at the stern of said main hull, and a tiller means for moving said rudder.
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) | 1977-04-29 | 1977-10-29 | 1978-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-29 | 1981-10-29 | 1982-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-29 | 1985-10-29 | 1986-04-30 | $7700.00 | Window Closed / Lapsed |