US3665885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catamaran
Assignee: SEA AND AIR Inc
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Filing: 1970-11-02
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Granted: 1972-05-30
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Expires: 1990-11-02
Abstract
Abstract The catamaran has a pair of aligned spaced integrally formed hulls advantageously configured to allow the hulls to pass through the water with relatively little resistance during heavy weather and when a heavy load is being carried by the catamaran. Each of the hulls has a lower bow curving progressively upwardly toward the heads of the hulls and terminating below the top of the hulls. An upper bow advantageously extends above and beyond the lower bow and an upwardly extending downwardly facing generally flat chine is formed between the upper and lower bows. The hulls are bridged and supported in fixed relative positions by a plurality of releasably mounted deck panels forming a flat deck surface providing a convenient working area for pollution control equipment and workers. Releasable fasteners connect the light weight hulls to the flat deck panels and connect the adjacent panels to form a rigid flat deck.
Inventors
- 👤 Arthur Javes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:46
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/02; B63B1/10; B63B1/12; B63B1/121; B63B3/00; B63B3/02; B63B3/08; B63B2003/085
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
104 words
A flat deck catamaran including a pair of aligned spaced integrally formed hulls, each of said hulls having a lower bow curving progressively upward toward the heads of said hulls and terminating below the top of said hulls, an upper bow extending above and beyond said lower bow, an upwardly extending downwardly facing flat chine surface between said upper and lower bow, said hulls being bridged and supported in fixed relative positions by a plurality of releasably mounted deck panels, and releasable fastening means connecting said hulls to said plurality of flat deck panels and connecting adjacent panels to form a rigid flat deck.
Claim 2
Dependent Claim
104 words
A flat deck catamaran including a pair of aligned spaced integrally formed hulls, each of said hulls having a lower bow curving progressively upward toward the heads of said hulls and terminating below the top of said hulls, an upper bow extending above and beyond said lower bow, an upwardly extending downwardly facing flat chine surface between said upper and lower bow, said hulls being bridged and supported in fixed relative positions by a plurality of releasably mounted deck panels, and releasable fastening means connecting said hulls to said plurality of flat deck panels and connecting adjacent panels to form a rigid flat deck.
Claim 3
Dependent Claim
126 words
The flat deck catamaran of claim 1 wherein each of said hulls have oppositely disposed side portions that taper downwardly in a converging direction, said sides being inwardly stepped at spaced intervals in a converging direction forming longitudinally extending chines, saId sides terminating in a generally flat bottom, the lower most of said opposite side portions curving upwardly toward the heads of the hulls and converging to form said lower bow, the next opposite side portions of said hulls above said lower most side portions converging at the heads of said hulls to form said upper bow extending above and beyond said lower bow, and said chine between said lower most side portions and said next upper side portions having a generally downwardly facing surface area.
Claim 4
Dependent Claim
18 words
The flat deck catamaran of claim 2 wherein floatation material is disposed in the interior of said hulls.
Claim 5
Dependent Claim
36 words
The flat deck catamaran of claim 2 wherein said deck panels have a top skin forming a flat deck surface and a lower skin spaced from said top skin by a plurality of longitudinally extending beams.
Claim 6
Dependent Claim
34 words
The flat deck catamaran of claim 4 wherein one or more of said panels has an opening in said top skin over said hulls forming an access hatch to the interior of said hulls.
Claim 7
Dependent Claim
131 words
A catamaran including a pair of spaced integrally formed hulls, support means securing said hulls in fixed relative positions, each of said hulls having oppositely disposed side portions that taper downwardly in a converging direction, said sides being inwardly stepped at spaced intervals in a converging direction forming longitudinally extending chines, said sides terminating in a generally flat bottom, the lower most of said opposite side portions curving upwardly toward the heads of the hulls and converging to form a lower bow, the next opposite side portions of said hulls above said lower most side portions converging at the heads of said hulls to form an upper bow extending above and beyond said lower bow, and said chine between said lower most side portions having a generally downwardly facing surface area.
Claim 8
Dependent Claim
131 words
A catamaran including a pair of spaced integrally formed hulls, support means securing said hulls in fixed relative positions, each of said hulls having oppositely disposed side portions that taper downwardly in a converging direction, said sides being inwardly stepped at spaced intervals in a converging direction forming longitudinally extending chines, said sides terminating in a generally flat bottom, the lower most of said opposite side portions curving upwardly toward the heads of the hulls and converging to form a lower bow, the next opposite side portions of said hulls above said lower most side portions converging at the heads of said hulls to form an upper bow extending above and beyond said lower bow, and said chine between said lower most side portions having a generally downwardly facing surface area.
Claim 9
Dependent Claim
38 words
The catamaran of claim 6 wherein said support means has a plurality of releasably mounted back panels, and releasable fastening means connecting said hulls to said deck panels and connecting adjacent panels to form a rigid flat deck.
Claim 10
Dependent Claim
34 words
The catamaran of claim 7 wherein said deck panels have a top skin forming a flat deck surface and a lower skin spaced froM said top skin by a plurality of longitudinally extending beams.
Claim 11
Dependent Claim
32 words
The catamaran of claim 8 wherein one or more of said panels has an opening in said top skin over said hulls forming an access hatch to the interior of said hulls.
Claim 12
Dependent Claim
16 words
The catamaran of claim 9 wherein floatation material is disposed in the interior of said hulls.
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) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |