US4063320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable boat
Assignee: Metzeler Kautschuk AG
•
Filing: 1976-07-19
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Granted: 1977-12-20
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Expires: 1996-07-19
Abstract
Abstract An inflatable boat includes a buoyant body having a pair of elongated lateral portions which are arcuately raised at both the bow region and the stern region thereof, a stern bulkhead connected to the lateral portions and extending between them, and a bottom which is water-tightly connected to the lateral portions and to the stern bulkhead and defines a compartment therewith. The lateral portions are constituted by inflatable tubular elements which are interconnected at the bow region of the inflatable boat by a rigid connecting element. The stern regions of the tubular elements extend beyond the stern bulkhead and arcuately converge toward one another in the rearward direction, being spaced from one another by a distance which at least corresponds to the maximum diameter of the tubular elements. A support element is mounted on the stern regions, and a rudder is mounted on the support element with freedom of movement relative thereto. A cover may be attached to the stern bulkhead and to the stern regions of the tubular elements to form an additional compartment therewith.
Inventors
- 👤 Henning Neumann
- 👤 Fritz Federer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:50
CPC Classifications
B; B63; B63H; B63H16/00; B63H16/08; B63B; B63B7/00; B63B7/06; B63B7/08
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
242 words
An inflatable boat, particularly for use on streams, comprising in combination an inflatable bottom elongated in a first direction and having a bow portion and a stern portion spaced from each other in said first direction; a stern bulkhead located aft of said stern portion of said bottom and extending in a second direction substantially transverse to said first direction; two lateral elements extending substantially in said first direction and spaced from each other in said second direction, said lateral elements being water-tightly connected to said bottom and said bulkhead and defining a compartment therewith, said lateral elements each having a first portion adjacent said bow portion of said bottom, and a second portion adjacent said stern portion of said bottom and spaced from said first portion in said first direction, said second portions of said lateral elements extending rearwardly beyond said stern bulkhead in said first direction, the first and second portions of one of said lateral elements substantially arcuately and gradually approaching towards the first and the second portions of the other lateral element, respectively, and the first and second portions of both lateral elements simultaneously being upwardly raised relative to the remainder of said lateral elements to substantially the same height; and two rigid connecting elements each connecting said first and second portions of one of said lateral elements to said first and said second portions of the other lateral element, respectively, substantially at the respective end sections thereof.
Claim 2
Dependent Claim
242 words
An inflatable boat, particularly for use on streams, comprising in combination an inflatable bottom elongated in a first direction and having a bow portion and a stern portion spaced from each other in said first direction; a stern bulkhead located aft of said stern portion of said bottom and extending in a second direction substantially transverse to said first direction; two lateral elements extending substantially in said first direction and spaced from each other in said second direction, said lateral elements being water-tightly connected to said bottom and said bulkhead and defining a compartment therewith, said lateral elements each having a first portion adjacent said bow portion of said bottom, and a second portion adjacent said stern portion of said bottom and spaced from said first portion in said first direction, said second portions of said lateral elements extending rearwardly beyond said stern bulkhead in said first direction, the first and second portions of one of said lateral elements substantially arcuately and gradually approaching towards the first and the second portions of the other lateral element, respectively, and the first and second portions of both lateral elements simultaneously being upwardly raised relative to the remainder of said lateral elements to substantially the same height; and two rigid connecting elements each connecting said first and second portions of one of said lateral elements to said first and said second portions of the other lateral element, respectively, substantially at the respective end sections thereof.
Claim 3
Dependent Claim
16 words
A combination as defined in claim 1, wherein said lateral elements are discrete inflatable tubular elements.
Claim 4
Dependent Claim
36 words
A combination as defined in claim 1, wherein said second portions of said lateral elements extend rearwardly beyond said stern bulkhead to a distance which at least corresponds to the maximum transverse dimension of said compartment.
Claim 5
Dependent Claim
19 words
A combination as defined in claim 3, wherein said distance corresponds to the maximum transverse dimension of said boat.
Claim 6
Dependent Claim
21 words
A combination as defined in claim 1; and further comprising a grating positioned at least over a portion of said bottom.
Claim 7
Dependent Claim
29 words
A combination as defined in claim 1; and further comprising a support element mounted on said second portions of said lateral elements and extending between the end sections thereof.
Claim 8
Dependent Claim
28 words
A combination as defined in claim 6; and further comprising a rudder; and means for mounting said rudder on said support element with freedom of movement relative thereto.
Claim 9
Dependent Claim
15 words
A combination as defined in claim 7, wherein said mounting means includes an mounting lug.
Claim 10
Dependent Claim
47 words
A combination as defined in claim 8, wherein said mounting lug includes an annular member mounted on said support element, and a plurality of clamping screws mounted on said annular member and contacting a portion of said rudder to thereby clamp the same in said annular member.
Claim 11
Dependent Claim
31 words
A combination as defined in claim 8, wherein said mounting lug includes a bifurcated member mounted on said support element for pivoting relative thereto in a manner of an oar lock.
Claim 12
Dependent Claim
31 words
A combination as defined in claim 10, wherein said mounting lug further includes a connecting bracket mounted on the arms of said bifurcated member and spanning the distance between the same.
Claim 13
Dependent Claim
46 words
A combination as defined in claim 8, wherein said support element has an elongated portion extending in the transverse direction of the boat; and wherein said mounting means further includes an adjusting member which mounts said mounting lug on said elongated portion for adjustment lengthwise thereof.
Claim 14
Dependent Claim
22 words
A combination as defined in claim 6, wherein said support element includes a plurality of tubular members telescopically received within one another.
Claim 15
Dependent Claim
21 words
A combination as defined in claim 6, and further comprising holding brackets which mount said support element on said stern regions.
Claim 16
Dependent Claim
37 words
A combination as defined in claim 1, and further comprising a cover, and means for attaching the cover to said stern bulkhead and to said stern regions of said lateral portions to form an additional compartment therewith.
Claim 17
Dependent Claim
36 words
A combination as defined in claim 1, wherein the material of at least said lateral portions of said buoyant body is selected from the group consisting of rubber, rubber-coated synthetic plastic fabric, polyvinylchloride and fabric-reinforced polyvinylchloride.
Claim 18
Dependent Claim
75 words
A combination as defined in claim 1, wherein the end sections of the first and the second portions of one of said lateral elements are spaced from the respective end sections of the first and the second portions of the other lateral element in said second direction, said connecting elements each connecting the respective end sections of said first and said second portions of said lateral element with each other and bridging the distance therebetween.
Claim 19
Dependent Claim
40 words
A combination as defined in claim 1, wherein said end sections of said second end portions of said lateral elements are spaced from one another by a distance which at least corresponds to the maximum diameter of said lateral elements.
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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) | 1980-12-19 | 1981-06-20 | 1981-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-19 | 1985-06-20 | 1985-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-19 | 1989-06-20 | 1989-12-20 | $7700.00 | Window Closed / Lapsed |