US3696451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube float or boat
Assignee: Individual
•
Filing: 1971-07-02
•
Granted: 1972-10-10
•
Expires: 1991-07-02
Abstract
Abstract A floatation unit which can form a part of a boat or raft comprising a frame having longitudinal and transverse frame members, and an inflatable flexible tube of annular shape in top plan view having forward and rearward portions disposed above the longitudinal frame member when it is in a horizontal position, and having right and left portions disposed below the horizontal transverse frame member. A boat or raft formed of multiple floatation units disposed side by side or forwardly and rearwardly of each other.
Inventors
- 👤 Howard D Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:11
CPC Classifications
B; B63; B63B; B63B7/00; B63B7/06; B63B7/08; B63B7/082; B63H; B63H9/00; B63H9/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
72 words
A floatation unit comprising: a frame having at least one elongated longitudinal frame member and having at least one horizontally elongated transverse frame member attached to the longitudinal frame member and extending transversely thereto, and an inflatable flexible tube of annular shape in top plan view, said tube having forward and rearward portions disposed above said longitudinal frame member and also having right and left portions disposed below said transverse frame member.
Claim 2
Dependent Claim
72 words
A floatation unit comprising: a frame having at least one elongated longitudinal frame member and having at least one horizontally elongated transverse frame member attached to the longitudinal frame member and extending transversely thereto, and an inflatable flexible tube of annular shape in top plan view, said tube having forward and rearward portions disposed above said longitudinal frame member and also having right and left portions disposed below said transverse frame member.
Claim 3
Dependent Claim
35 words
The combination of claim 1 in which the dimensions of said tube are such that in the described position the top of its right and left sides are pressed firmly against said transverse frame means.
Claim 4
Dependent Claim
37 words
A floatation structure comprising a plurality of the floatation units of claim 1, said floatation units being disposed forwardly and rearwardly of each other when seen in side elevation, the frames of said floatation units being interconnected.
Claim 5
Dependent Claim
37 words
The combination of claim 3 in which the said plurality of floatation units are disposed one behind another with outermost parts of the right and left side portions of each unit disposed in two straight lines respectively.
Claim 6
Dependent Claim
46 words
The combination of claim 3 in which said units are disposed with two of said units alongside each other and a third unit disposed with its area center as seen in top plan view arranged directly rearward of a midpoint between the said two front units.
Claim 7
Dependent Claim
19 words
The combination of claim 1 in which said transverse frame means comprises two parallel spaced apart transverse frame members.
Claim 8
Dependent Claim
14 words
The combination of claim 3 in further combination with an outboard motor attached thereto.
Claim 9
Dependent Claim
17 words
The combination of claim 3 in further combination with a mast, boom, and sail assembly attached thereto.
Claim 10
Dependent Claim
110 words
The combination of claim 3 in which the means of connecting said units together comprises said longitudinal frame members of said units being aligned and having adjacent tubular end portions which are provided with rectangular inner surfaces as seen in cross-section, an elongated insert having a cross-section of a uniform rectangular shape along its length and of a size adapted to snugly fit in said longitudinal frame members, said insert being disposed partly in the longitudinal frame member of one of said units and partly in the longitudinal frame member of one of said units, and means connecting said insert to the said adjacent longitudinal frame members of said units.
Claim 11
Dependent Claim
98 words
The combination of claim 1 in which said floAtation units are constructed so that their transverse and longitudinal frame members lap each other to form an intersection, and at each intersection one of the intersecting frame members having a notch therein receiving an adjacent portion of the other intersecting frame member, and means securing the transverse and longitudinal frame members together to form a rigid structure, such means being a bolt extended vertically through the intersecting frame members, said frame members being of rectangular shape in cross-section, said notch having edges closely fitting the opposite intersecting frame member.
References Cited (Backward Citations)
US1642149A
Cited
US1743396A
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US1927124A
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FR809918A
Cited
US2891260A
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US2929080A
Cited
US3601076A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |